Battery cell holder and mobile power supply

Abstract

The utility model discloses a kind of battery cell support and mobile power supply, battery cell support includes stand, several battery cell compartments are sequentially arranged in the both sides of stand, electrically conductive connecting piece is arranged between adjacent battery cell compartments, the lower end of stand is equipped with electrically conductive connecting piece, electrically conductive connecting piece extends into the battery cell compartment of the both sides of the lower end of stand, slot body is arranged in stand, and slot body is equipped with thermistor for detecting the temperature of battery cell in battery cell compartment.The mobile power supply includes the above-mentioned battery cell support, battery cell, socket head, tail seat and shell, and the shell is equipped with key cap corresponding to key board.The utility model has the advantages that: integrated battery rack does not need to be assembled, replace electrode voltage detection line, thermistor cable with integrated one slender PCB board, easily array multiple thermistors to detect the temperature of each battery cell, so that mobile power supply assembly is simple, and automation production can be easily realized, matched with corresponding aluminum alloy shell, and sealed by pouring glue, improve the stability of battery pack and excellent heat dissipation performance.

Description

Technical Field

[0001] This utility model relates to the field of mobile power technology, and in particular to a battery cell bracket and a mobile power supply. Background Technology

[0002] A power bank's main components include battery cells, circuit boards, and a casing. The battery cells are the core of the power bank, responsible for storing electrical energy, and are typically made of lithium-ion or lithium-polymer. During use, monitoring the voltage and temperature of the battery cells is extremely important. Excessive voltage or temperature can cause a series of safety issues, severely impacting battery performance and lifespan, and may even lead to thermal runaway, causing fires or explosions. Therefore, real-time monitoring of the battery cell voltage and temperature is necessary. However, existing voltage detection methods typically use long, thin wires connected to each electrode of the cell, and temperature sensors also use two wires connected to a protection circuit board. Furthermore, temperature sensors generally only contact a small portion of the battery and cannot detect the temperature of all cells. This arrangement inside the power bank creates numerous long, thin cables, and a failure in any one of these cables can lead to thermal runaway. Summary of the Invention

[0003] This utility model mainly solves the above-mentioned problems and provides a cable-free, highly integrated voltage and temperature detection battery cell bracket and mobile power supply.

[0004] The technical solution adopted by this utility model to solve its technical problem is a battery cell support, including a column. Several battery cell compartments are arranged sequentially from top to bottom on the left and right sides of the column. A conductive connecting piece is provided between adjacent battery cell compartments on the same side of the column. A conductive connecting piece is provided at the lower end of the column, and the conductive connecting piece extends into the battery cell compartments on both sides of the lower end of the column. A first mounting plane and a second mounting plane are respectively provided on the front and rear sides of the column. A voltage and temperature detection plate is provided on the first mounting plane, and a button plate is provided on the second mounting plane. A groove penetrating the left and right sides of the column is provided at each battery cell compartment. A thermistor for detecting the temperature of the battery cells in the battery cell compartment is provided in the groove. The thermistor is directly soldered to the detection plate.

[0005] As a preferred embodiment of the above solution, the first mounting plane and the second mounting plane are provided with a plurality of mounting posts, and the keypad and the detection plate are provided with a plurality of mounting holes that match the mounting posts.

[0006] As a preferred embodiment of the above solution, each of the first and second mounting planes is provided with a groove at its upper end, and a pin is provided in the groove. The two pins are electrically connected to the keypad and the detection board, respectively.

[0007] As a preferred embodiment of the above solution, a cell partition is provided between adjacent cell compartments, the cell partition has a hollow center, and cell retaining rings are provided on the upper and lower sides of the cell partition, respectively. A gap is provided between the cell retaining rings and the cell partition, the gap extends to the first mounting plane, and a first mounting piece is provided on the conductive spring piece. The conductive spring piece is located at the hollow center, and the first mounting piece is embedded in the gap and extends outward at the first mounting plane.

[0008] As a preferred embodiment of the above solution, the detection board is provided with a first slot at the location corresponding to the cell separator, and the first mounting piece is inserted into the first slot.

[0009] As a preferred embodiment of the above solution, a notch is provided at the lower end of the first mounting plane, and a second mounting piece is provided in the middle of the conductive connecting piece facing the first mounting plane. The second mounting piece extends outward from the first mounting plane through the notch.

[0010] As a preferred embodiment of the above solution, the lower end of the detection plate is provided with a second slot, and the second mounting piece is inserted into the second slot.

[0011] Correspondingly, a power bank is also provided, which adopts the above-mentioned cell support and includes a cell, a socket head, a tail connector, and a housing. The cell is set in each cell compartment. The cell support is covered with a housing. The tail connector is set at the lower end of the housing. The socket head is set at the upper end of the housing. A button cap is provided on the housing corresponding to the button panel.

[0012] As a preferred embodiment of the above solution, the socket head includes a socket base, a socket housing, an electrode holder, and a circuit board. The circuit board is electrically connected to a button board and a detection board via pins. A positive electrode connecting piece and a negative electrode connecting piece are inserted into the circuit board. The positive electrode connecting piece and the negative electrode connecting piece are electrically connected to the battery cells in the battery cell compartments on the left and right sides of the upper end of the battery cell bracket, respectively. The circuit board is electrically connected to the electrode holder. The circuit board is provided with a USB interface and an indicator light, which are located on the side of the socket base.

[0013] As a preferred embodiment of the above solution, each of the left and right sides of the electrode base is provided with a spring piece. One end of the spring piece is connected to the motor base, and the other end of the spring piece is provided with a locking assembly. The locking assembly includes a connected force application button and a limiting block. The socket housing is provided with a through hole for the force application button and the limiting block to pass through.

[0014] The advantages of this utility model are: the integrated battery rack does not require assembly, and a thin PCB board is integrated to replace the electrode voltage detection line and thermistor cable. Multiple thermistors can be easily arrayed to detect the temperature of each cell, making the assembly of the power bank simple and enabling easy automated production. The corresponding aluminum alloy shell is sealed with potting glue to improve the stability of the battery pack and its excellent heat dissipation performance. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a battery cell support structure from a first-person perspective.

[0016] Figure 2 A schematic diagram of the structure when loading battery cells onto a battery cell support.

[0017] Figure 3 This is a schematic diagram of the exploded structure of the battery cell support.

[0018] Figure 4 This is a schematic diagram of a portable power bank.

[0019] Figure 5 This is a schematic diagram of the exploded structure of a socket head.

[0020] 1-Column 2-Cell compartment 3-Conductive spring 4-Conductive connecting piece 5-Detection plate 6-Slot 7-Button board 8-Second mounting plane 9-First mounting plane 10-Mounting post 11-Pin 12-Cell separator 13-Cell retainer 14-First mounting piece 15-First slot 16-Notch 17-Second mounting piece 18-Second slot 19-Socket head 20-Tail connector 21-Outer shell 22-Socket base 23-Socket outer shell 24-Electrode holder 25-Circuit board 26-Positive connecting piece 27-Negative connecting piece 28-Cell 29-USB interface 30-Indicator light 31-Limit block 32-Force button Detailed Implementation

[0021] The technical solution of this utility model will be further described below through embodiments and in conjunction with the accompanying drawings.

[0022] Example:

[0023] This embodiment provides a cell support structure, such as... Figures 1 to 3As shown, the system includes a column 1. Several battery cell compartments 2 are arranged sequentially from top to bottom on both sides of the column 1. Conductive spring contacts 3 are provided between adjacent battery cell compartments 2 on the same side of the column 1. A conductive connecting piece 4 is provided at the lower end of the column 1, extending into the battery cell compartments on both sides of the lower end of the column 1. The battery cells in each battery cell compartment 2 are connected in series via the conductive spring contacts 3 and the conductive connecting piece 4. A first mounting plane 9 and a second mounting plane 8 are respectively provided on the front and rear sides of the column 1. A detection plate 5 is provided on the first mounting plane 9, and a button plate 7 is provided on the second mounting plane 9. A groove 6 is provided on each battery cell compartment corresponding to the column 1, penetrating both sides of the column. A thermistor for detecting the temperature of the battery cells in the battery cell compartment is provided in the groove 6, and the thermistor is directly soldered to the detection plate 5 for electrical connection.

[0024] Furthermore, a plurality of mounting posts 10 are provided on the first mounting plane 9 and the second mounting plane 8, and a plurality of mounting holes matching the mounting posts are provided on the keypad 7 and the detection plate 5. A groove is provided at the upper end of the first mounting plane 9 and the second mounting plane 8, and a pin is provided in the groove. The two pins are electrically connected to the keypad and the detection plate respectively.

[0025] Furthermore, a cell separator 12 is provided between adjacent cell compartments. The cell separator 12 has a hollow center, and cell retaining rings 13 are provided on the upper and lower sides of the cell separator 12 respectively. A gap exists between the cell retaining rings 13 and the cell separator 12, extending to the first mounting plane 9. A first mounting piece 14 is provided on the conductive spring 3, located at the hollow center. The first mounting piece 14 is embedded in the gap and extends outwards at the first mounting plane 9. A first slot 15 is provided on the detection plate 5 corresponding to the cell separator, and the first mounting piece 14 is inserted into the first slot 15. A notch 16 is provided at the lower end of the first mounting plane 9. A second mounting piece 17 is provided on the middle of the conductive connecting piece 4 facing the first mounting plane, extending outwards at the first mounting plane 9 through the notch 16. A second slot 18 is provided at the lower end of the detection plate 5, and the second mounting piece 17 is inserted into the second slot 18.

[0026] In this embodiment, the cell support has a groove on the column, and the thermistors mounted on the detection board are embedded in the groove. The array of thermistors can detect the temperature change of each cell. In addition, by fixing the conductive springs and conductive connecting pieces by the detection board, the integration of the cell support is improved, all wires are eliminated, and the space required for setting up the cell support is reduced.

[0027] Correspondingly, this embodiment also provides a portable power bank, such as... Figure 4 As shown, a battery cell support is used, and the battery cell, socket head 19, tail connector 20 and housing 21 are also included. The battery cell is placed in each battery cell compartment. The battery cell support is covered with housing 21. Tail connector 20 is placed at the lower end of housing 21. Socket head 19 is placed at the upper end of housing 21. Button caps are provided on housing 21 at the corresponding button panel.

[0028] like Figure 5 As shown, the socket head includes a socket base 22, a socket housing 23, an electrode holder 24, and a circuit board 25. The circuit board 25 is electrically connected to the button board and the detection board via pins. A positive electrode connecting piece 26 and a negative electrode connecting piece 27 are inserted into the circuit board 25. The positive electrode connecting piece and the negative electrode connecting piece are electrically connected to the battery cells 28 in the battery cell compartments on the left and right sides of the upper end of the battery cell bracket, respectively. The circuit board 25 is electrically connected to the electrodes of the electrode holder 24. The circuit board 25 is provided with a USB interface 29 and an indicator light 30, which are located on the side of the socket base 22. A spring is provided on each of the left and right sides of the electrode holder 24. One end of the spring is connected to the motor holder 24, and the other end of the spring is provided with a locking assembly. The locking assembly includes a connected force application button 31 and a limit block 32. The socket housing 23 is provided with a through hole for the force application button and the limit block to pass through. In this embodiment, the socket head is a male socket. When in use, the male socket is inserted into the female socket. Under the elastic action of the spring piece itself, the locking assembly will move away from the electrode seat 24, so that the limiting block 32 extends out of the through hole and abuts against the side wall of the female socket, thereby improving the firmness of the connection between the male socket and the female socket.

[0029] The specific embodiments described herein are merely illustrative of the spirit of the invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of the invention or exceeding the scope defined by the appended claims.

Claims

1. A battery cell support structure, characterized in that: The device includes a column, on which several cell compartments are arranged sequentially from top to bottom on both sides. A conductive spring is provided between adjacent cell compartments on the same side of the column. A conductive connecting piece is provided at the lower end of the column, extending into the cell compartments on both sides of the lower end of the column. A first mounting plane and a second mounting plane are respectively provided on the front and rear sides of the column. A detection plate is provided on the first mounting plane, and a button plate is provided on the second mounting plane. A groove penetrating the left and right sides of the column is provided at each cell compartment. A thermistor for detecting the temperature of the cell in the cell compartment is provided in the groove. The thermistor is directly soldered to the detection plate.

2. The cell support according to claim 1, characterized in that: The first and second mounting planes are provided with a plurality of mounting posts, and the keypad and detection plate are provided with a plurality of mounting holes that match the mounting posts.

3. The cell support according to claim 1, characterized in that: Each of the first and second mounting surfaces has a groove at its upper end, and a pin is provided in the groove. The two pins are electrically connected to the keypad and the detection board, respectively.

4. The cell support according to claim 1, characterized in that: A cell separator is provided between adjacent cell compartments. The cell separator has a hollow center. Cell retainers are provided on the upper and lower sides of the cell separator. There is a gap between the cell retainers and the cell separator. The gap extends to the first mounting plane. A first mounting piece is provided on the conductive spring. The conductive spring is located at the hollow center. The first mounting piece is embedded in the gap and extends outward at the first mounting plane.

5. The cell support according to claim 4, characterized in that: The detection board has a first slot at the corresponding cell separator, and the first mounting piece is inserted into the first slot.

6. The cell support according to claim 1, characterized in that: The first mounting plane has a notch at its lower end, and the conductive connecting piece has a second mounting piece in the middle facing the first mounting plane. The second mounting piece extends outward from the first mounting plane through the notch.

7. The cell support according to claim 6, characterized in that: The detection plate has a second slot at its lower end, and the second mounting piece is inserted into the second slot.

8. A portable power bank, employing the cell support structure as described in any one of claims 1-7, characterized in that: It also includes battery cells, socket heads, tail connectors and outer casings. The battery cells are arranged in each battery cell compartment. The battery cell support is covered with an outer casing. The tail connector is located at the lower end of the outer casing. The socket head is located at the upper end of the outer casing. A button cap is provided on the outer casing corresponding to the button panel.

9. The portable power bank according to claim 8, characterized in that: The socket head includes a socket base, a socket housing, an electrode holder, and a circuit board. The circuit board is electrically connected to a button board and a detection board via pins. A positive electrode connecting piece and a negative electrode connecting piece are inserted into the circuit board. The positive electrode connecting piece and the negative electrode connecting piece are electrically connected to the battery cells in the battery cell compartments on the left and right sides of the upper end of the battery cell bracket, respectively. The circuit board is electrically connected to the electrode holder. The circuit board is provided with a USB interface and an indicator light, which are located on the side of the socket base.

10. The portable power bank according to claim 9, characterized in that: Each of the left and right sides of the electrode base is provided with a spring piece. One end of the spring piece is connected to the electrode base, and the other end of the spring piece is provided with a locking assembly. The locking assembly includes a connected force application button and a limiting block. The socket housing is provided with a through hole for the force application button and the limiting block to pass through.

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