A lithium battery charger with power-off function
By introducing induction mechanism and disconnection mechanism into the lithium battery charger, combined with temperature fuse and humidity sensor, automatic power outage in high temperature environments is achieved, solving the problem of overheating and catching fire in the lithium battery charger, and through a mini fire extinguishing ball Prevent fires and improve the safety and reliability of the equipment.
Patent Information
- Application Number
- CN202411242838.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2044-09-05
AI Technical Summary
The existing lithium battery chargers do not have a protective structure in high temperature environments, which can easily cause the adapter to overheat, damage or catch fire.
A lithium battery charger with power-off function is designed, using an induction mechanism and a disconnection mechanism to automatically disconnect the wires and charging lines when the temperature is too high, and combined with a temperature fuse, a humidity sensor and a mini fire extinguishing ball to achieve automatic power off. , prevent overheating and fire.
It effectively avoids damage and fire caused by high temperature overheating of the power adapter, ensures the safety of the equipment, and prevents short circuits through the humidity sensor, improving the safety of the charger.
Smart Images
Figure CN118763783B_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of lithium battery charging and relates to a lithium battery charger with a power-off function. Background Art
[0002] Battery cars are also called "electric cars". They are pure electric vehicles powered by batteries and driven by electric motors. The batteries of electric cars are usually lithium batteries and lead-acid batteries. Lithium battery chargers are specially designed to charge lithium-ion batteries.
[0003] When existing lithium battery chargers are used to charge batteries, one end of the lithium battery is usually connected to a power source, while the other end of the lithium battery is connected to a charging port. When charging, current is transmitted to the adapter, and then the lithium battery is charged through the wire at the other end. However, existing chargers are not provided with a protection structure when charging. In a high temperature environment, the charger is easily overheated if it is powered on all the time. If a charger without an overheating protection structure is continued to be used in an overheated state, it is easy to cause damage to the internal structure of the adapter and it is also easy to catch fire due to high temperature. Summary of the invention
[0004] In view of this, the present invention provides a lithium battery charger with a power-off function.
[0005] The technical solution of the present invention is: a lithium battery charger with a power-off function, comprising a shell, a connection line, a charging line and an electric energy adapter, wherein the shell is provided with an electric energy adapter, and the front and rear sides of the electric energy adapter are provided with connection ends, and the connection ends are respectively plugged with the charging line and the connection line, and also includes a sensing mechanism and a disconnecting mechanism, wherein the electric energy adapter is provided with a sensing mechanism, and the sensing mechanism is used to sense the temperature of the electric energy adapter, and a disconnecting mechanism is provided between the shell and the sensing mechanism, and the disconnecting mechanism can control the connection line and the charging line to be disconnected from the connection end when the sensing mechanism senses a high temperature, and the disconnecting mechanism comprises a limiting block, a connecting ring, an extension block, a guide rail, a sliding ring, an elastic member 2 and a locking block, and the The ends of the connecting wire and the charging wire connected to the power adapter are connected to a connecting ring, and extension blocks are connected to both sides of the connecting ring. The two extension blocks are respectively slidably connected to the connecting ends, and both sides of the connecting end of the power adapter are connected to limiting blocks. Two guide rails are connected to the front and back sides of the shell, and the two guide rails are respectively located on both sides of the connecting end. A sliding ring is slidably connected to the guide rail, and a locking block is slidably connected to the sliding ring. The locking block is slidably connected to the extension block. When the connecting wire and the charging wire are connected to the connecting end, the extension block contacts the limiting block, and the locking block can be covered between the extension block and the limiting block to fix the charging wire and the connecting wire to the connecting end, and an elastic member 2 is connected between the sliding ring and the guide rail.
[0006] Optionally, the sensing mechanism includes a sliding plate, a pushing plate, an elastic member, a connecting plate and a temperature fuse. The sliding plate is slidably connected to the top of the power adapter, an elastic member is connected between the sliding plate and the top of the power adapter, pushing plates are connected to the front and rear sides of the bottom of the sliding plate, the pushing plate is L-shaped, connecting plates are connected to both sides of the power adapter, and a temperature fuse that can pull the pushing plate is connected between the connecting plate and the pushing plate.
[0007] Optionally, the sliding plate, the pushing plate and the connecting plate are all made of copper.
[0008] Optionally, the locking block is located at a moving track of the pushing plate, so that the movement of the pushing plate can push the locking block to move.
[0009] Optionally, it also includes limiting columns, and four limiting columns are connected to both sides of the shell, and the four limiting columns are in a rectangular array. The interface positions of the connecting line and the charging line are respectively slidably connected to the limiting columns on both sides.
[0010] Optionally, a plurality of heat dissipation openings for dissipating heat from the power adapter inside the shell are evenly spaced apart in the middle of both sides of the shell.
[0011] Optionally, a closing mechanism is also included, which includes a control motor, a closing plate and a humidity sensor. Control motors are installed on both sides of the power adapter, and closing plates for closing the heat dissipation ports are rotatably connected to the middle of both sides of the shell. The closing plate is located outside the shell and is installed with a humidity sensor. The power adapter is equipped with a controller, and the humidity sensor and the control motor are electrically connected to the adapter, and the control motor is connected in the middle of the closing plate.
[0012] Optionally, a mini fire extinguisher ball is also included, and the mini fire extinguisher ball is installed on the top of the shell.
[0013] Compared with the prior art, the present invention has the following advantages: 1. During operation, the present invention can be heated by the temperature fuse. When the temperature reaches a threshold, the temperature fuse breaks and the connection line and the charging line are separated from the connection end, thereby isolating the power supply to prevent the power adapter from catching fire due to excessive temperature.
[0014] 2. During use, the present invention can sense the external temperature through the humidity sensor. If the external temperature is too high, the control motor can be operated to drive the closing plate to close the heat dissipation port to prevent moisture from entering the power adapter and causing a short circuit in the power adapter.
[0015] 3. If a fire accidentally occurs during operation of the present invention, the mini fire extinguishing ball can sense the temperature and spray out the dry powder inside it to extinguish the fire. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.
[0017] Figure 2 The figure is a schematic diagram of the structure of the present invention after the shell is hidden.
[0018] Figure 3 It is a structural schematic diagram of the sensing mechanism of the present invention.
[0019] Figure 4 For the present invention Figure 3 Enlarged view of part A in .
[0020] Figure 5 It is a structural schematic diagram of the disconnection mechanism of the present invention.
[0021] Figure 6 For the present invention Figure 5 Enlarged view of part B in FIG.
[0022] Figure 7 It is an exploded view of the disconnection mechanism of the present invention.
[0023] Figure 8 It is a structural schematic diagram of the closing mechanism of the present invention.
[0024] Fig. 9 It is a front view of the closing mechanism of the present invention.
[0025] Fig.10 It is a schematic diagram of the connection relationship between the shell and the mini fire extinguishing ball of the present invention.
[0026] In the above drawings: 1-shell, 11-limiting column, 2-connecting wire, 3-charging wire, 31-connecting end, 4-power adapter, 51-sliding plate, 511-pushing plate, 52-elastic part 1, 53-connecting plate, 54-temperature fuse, 61-limiting block, 62-connecting ring, 621-extension block, 63-guide rail, 64-sliding ring, 65-elastic part 2, 66-locking block, 71-control motor, 72-closing plate, 73-humidity sensor, 8-mini fire extinguishing ball. DETAILED DESCRIPTION
[0027] Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0028] A lithium battery charger with power-off function, such as Figure 1-Figure 7As shown, it includes a shell 1, a connection line 2, a charging line 3, a power adapter 4, a sensing mechanism and a disconnection mechanism. The power adapter 4 is installed in the shell 1. The power adapter 4 is provided with connection terminals 31 at the right rear side and the left front side. The connection lines 2 are respectively plugged into the rear connection terminals 31, and the charging lines 3 are plugged into the front connection terminals. The power adapter 4 is provided with a sensing mechanism, and the sensing mechanism is used to sense the temperature of the power adapter 4. A disconnection mechanism is provided between the shell 1 and the sensing mechanism, and the disconnection mechanism can control the connection line 2 and the charging line 3 to be disconnected from the connection terminals 31 when the sensing mechanism senses a high temperature.
[0029] like Figure 3 and Figure 4 As shown, the sensing mechanism includes a sliding plate 51, a pushing plate 511, an elastic member 52, a connecting plate 53 and a temperature fuse 54. The sliding plate 51 is slidably connected to the top of the power adapter 4, and the sliding plate 51 can slide up and down along the power adapter 4. An elastic member 52 is connected between the sliding plate 51 and the top of the power adapter 4, and the elastic member 52 is a pressure spring. The front and rear sides of the bottom of the sliding plate 51 are connected to the pushing plates 511, and the pushing plates 511 are L-shaped. The front and rear sides of the power adapter 4 are connected to the connecting plates 53, and a temperature fuse 54 is connected between the connecting plate 53 and the pushing plate 511, and the temperature fuse 54 pulls the pushing plate 511.
[0030] like Figure 5-Figure 7As shown, the disconnection mechanism includes a limit block 61, a connecting ring 62, an extension block 621, a guide rail 63, a sliding ring 64, an elastic member 65 and a locking block 66. The ends of the connection line 2 and the charging line 3 connected to the power adapter 4 are connected to the connecting ring 62, and the front and rear sides of the connecting ring 62 are connected to the extension blocks 621, and the two extension blocks 621 are respectively slidably connected to the connection end 31. The front and rear sides of the connection end 31 of the power adapter 4 are connected to the limit block 61, and the front and rear sides of the housing 1 are connected to two guide rails 63, which are respectively located on the left and right sides of the connection end 31. The guide rail 63 is slidably connected to the sliding ring 64, and the sliding ring 64 is slidably connected to the sliding ring The locking block 66 is dynamically connected, and the locking block 66 is slidably connected to the extension block 621. The locking block 66 can only slide up and down on the sliding ring 64 and the extension block 621. When the connection line 2 and the charging line 3 are connected to the connection end 31, the extension block 621 contacts the limit block 61. At this time, the locking block 66 can be covered between the extension block 621 and the limit block 61, so that the charging line 3 and the connection line 2 are both fixed to the connection end 31. An elastic member 65 is connected between the sliding ring 64 and the guide rail 63, and the elastic member 65 is a reset spring. The locking block 66 is located at the moving track of the push plate 511, so that the movement of the push plate 511 can push the locking block 66 to move.
[0031] The sliding plate 51 , the pushing plate 511 and the connecting plate 53 are all made of copper and have strong thermal conductivity.
[0032] When the lithium battery charger is needed, the charger can be used for charging. In the initial state, the temperature fuse 54 pulls the push plate 511, the elastic member 1 52 is in a compressed state, and the locking block 66 also clamps the extension block 621 and the limit block 61, so that the locking block 66 is clamped by the limit block 61, and the elastic member 2 65 is also in a compressed state. When in use, the connecting wire 2 is connected to the power socket, and then the charging wire 3 is connected to the position of the lithium battery of the electric vehicle. After the operation is completed, the current will be charged into the lithium battery from the connecting wire 2, the power adapter 4 and the charging wire 3 in sequence. During use, if the power adapter 4 heats up due to high external temperature or short circuit, the heat can be conducted to the temperature fuse 54 through the sliding plate 51, the pushing plate 511 and the connecting plate 53. If the temperature is too high and exceeds the threshold of the temperature fuse 54, the temperature fuse 54 is blown, and the pushing plate 511 loses its The pulling force of the temperature fuse 54 resets the elastic member 1 52, thereby pushing the sliding plate 51 to move upward, and the sliding plate 51 moves upward to drive the pushing plate 511 to move upward. The pushing plate 511 moves upward and can contact the locking block 66 and push the locking block 66 to move upward. When the locking block 66 moves upward to disengage from the limit block 61, the sliding ring 64 is pushed to move in the direction away from the power adapter 4 under the action of the elastic member 2 65. The sliding ring 64 can drive the locking block 66 to move when moving, and the locking block 66 pulls the extension block 621 to move together when moving. The extension block 621 drives the connecting ring 62 to move when moving. The connecting rings 62 on both sides can respectively pull the connecting wire 2 and the charging wire 3 to separate from the connecting end 31 when moving, thereby cutting off the power of the entire device. In this way, the power can be automatically cut off when using the lithium battery charger for charging, thereby avoiding combustion and fire caused by overheating.
[0033] like Figure 5 As shown, it also includes a limiting column 11. Four limiting columns 11 are connected to the front and rear sides of the shell 1. The four limiting columns 11 are in a rectangular array. The interface positions of the connecting wire 2 and the charging wire 3 are respectively slidably connected to the limiting columns 11 on the front and rear sides. The limiting columns 11 can limit the interface positions of the connecting wire 2 and the charging wire 3 to prevent the connecting wire 2 and the charging wire 3 from being detached and lost.
[0034] like Figure 8 and Fig. 9 As shown, a plurality of heat dissipation openings are evenly spaced apart in the middle of both the front and rear sides of the shell 1 for heat dissipation of the power adapter 4 inside the shell 1 .
[0035] like Figure 8 and Fig. 9As shown, a closing mechanism is also included, and the closing mechanism includes a control motor 71, a closing plate 72 and a humidity sensor 73. The control motor 71 is installed on both the front and rear sides of the power adapter 4, and the middle parts of the front and rear sides of the shell 1 are rotatably connected with the closing plate 72. The closing plate 72 can close the heat dissipation port by rotating. The closing plate 72 is located outside the shell 1 and is installed with a humidity sensor 73. The power adapter 4 is provided with a controller, and the humidity sensor 73 and the control motor 71 are electrically connected to the adapter. The control motor 71 is connected to the closing plate 72 in the middle so that the control motor 71 can control the closing plate 72 to rotate.
[0036] When the lithium battery is charged, heat can be dissipated through the heat dissipation holes on both sides of the shell 1. If the humidity is high due to rain, fog or the like, the humidity sensor 73 can sense it and send a signal to the internal controller to drive the motor 71 to rotate, thereby driving the closing plate 72 to rotate and close the heat dissipation hole, thereby preventing water mist from entering the components inside the power adapter 4 through the heat dissipation hole and causing a short circuit in the equipment.
[0037] like Fig.10 As shown, a mini fire extinguisher ball 8 is also included. The mini fire extinguisher ball 8 is installed on the top of the shell 1. When the fire temperature of the power adapter 4 is high, the mini fire extinguisher ball 8 senses the high temperature and can spray out the dry powder inside it, thereby extinguishing the fire of the power adapter 4.
[0038] Those skilled in the art should understand that the above embodiments do not limit the present invention in any form, and any technical solutions obtained by equivalent replacement or equivalent transformation shall fall within the protection scope of the present invention.
Claims
1. A lithium battery charger with a power-off function, comprising a housing (1), a connection line (2), a charging line (3) and a power adapter (4), wherein the power adapter (4) is installed in the housing (1), and the power adapter (4) is provided with connection terminals (31) on both the front and rear sides, and the charging line (3) and the connection line (2) are respectively plugged into the connection terminals (31), wherein: The power adapter (4) also includes a sensing mechanism and a disconnection mechanism. The sensing mechanism is provided on the power adapter (4) and is used to sense the temperature of the power adapter (4). A disconnection mechanism is provided between the housing (1) and the sensing mechanism. The disconnection mechanism can control the connection line (2) and the charging line (3) to be disconnected from the connection end (31) when the sensing mechanism senses a high temperature. The disconnection mechanism includes a limit block (61), a connection ring (62), an extension block (621), a guide track (63), a sliding ring (64), a second elastic member (65) and a locking block (66). The ends of the connection line (2) and the charging line (3) connected to the power adapter (4) are both connected to the connection ring (62). Both sides of the connection ring (62) are connected to extension blocks (621). The two extension blocks (621) are respectively slidably connected to the connection end (31). Both sides of the connection end (31) of the distributor (4) are connected to limit blocks (61), and the front and rear sides of the shell (1) are connected to two guide rails (63), and the two guide rails (63) are respectively located on both sides of the connection end (31). A sliding ring (64) is slidably connected to the guide rail (63), and a locking block (66) is slidably connected to the sliding ring (64). The locking block (66) is slidably connected to the extension block (621). When the connection line (2) and the charging line (3) are connected to the connection end (31), the extension block (621) contacts the limit block (61), and the locking block (66) can be covered between the extension block (621) and the limit block (61) to fix the charging line (3) and the connection line (2) to the connection end (31). An elastic member 2 (65) is connected between the sliding ring (64) and the guide rail (63); The sensing mechanism comprises a sliding plate (51), a pushing plate (511), an elastic member 1 (52), a connecting plate (53) and a temperature fuse (54); the top of the power adapter (4) is slidably connected to the sliding plate (51); the elastic member 1 (52) is connected between the sliding plate (51) and the top of the power adapter (4); the front and rear sides of the bottom of the sliding plate (51) are both connected to the pushing plate (511); the pushing plate (511) is L-shaped; both sides of the power adapter (4) are connected to the connecting plate (53); and a temperature fuse (54) capable of pulling the pushing plate (511) is connected between the connecting plate (53) and the pushing plate (511); The locking block (66) is located at the moving track of the pushing plate (511), so that the movement of the pushing plate (511) can push the locking block (66) to move.
2. A lithium battery charger with power-off function according to claim 1, characterized in that: The sliding plate (51), the pushing plate (511) and the connecting plate (53) are all made of copper.
3. A lithium battery charger with power-off function according to claim 1, characterized in that: It also comprises limiting posts (11), with four limiting posts (11) connected to both sides of the shell (1), the four limiting posts (11) being arranged in a rectangular array, and the interface positions of the connection line (2) and the charging line (3) being slidably connected to the limiting posts (11) on both sides respectively.
4. A lithium battery charger with power-off function according to claim 1, characterized in that: A plurality of heat dissipation openings for dissipating heat from the power adapter (4) inside the shell (1) are evenly spaced apart in the middle of both sides of the shell (1).
5. A lithium battery charger with power-off function according to claim 4, characterized in that: The invention also comprises a sealing mechanism, the sealing mechanism comprising a control motor (71), a sealing plate (72) and a humidity sensor (73); the control motor (71) is installed on both sides of the power adapter (4); the middle part of both sides of the shell (1) is rotatably connected with a sealing plate (72) for sealing the heat dissipation port; the humidity sensor (73) is installed at a position of the sealing plate (72) located outside the shell (1); the power adapter (4) is provided with a controller; the humidity sensor (73) and the control motor (71) are both electrically connected to the adapter; and the control motor (71) is connected in the middle of the sealing plate (72).
6. A lithium battery charger with power-off function according to claim 1, characterized in that: Also included is a mini fire extinguishing ball (8), which is installed on the top of the housing (1).