Underwater waterproof lithium battery assembly

Abstract

The utility model relates to an underwater waterproof lithium battery assembly, which comprises a waterproof shell with an opening on one side, a battery pack arranged in an inner cavity of the waterproof shell, a cable socket mounted at the top end of the waterproof shell, and a sealing cover arranged at the opening of the waterproof shell. The outer wall of the side, away from the sealing cover, of the waterproof shell is fixedly connected with a sealing cover, and when the temperature sensor detects that the output current of the battery pack is too large and the temperature of the battery pack is too high, a signal is immediately transmitted to the control circuit board; after receiving the signal, the control circuit board immediately controls the circuit breaker to disconnect the electrical connection between the cable socket and the battery pack to protect the battery pack, and when the temperature sensor detects that the battery pack is cooled to a proper temperature, the control circuit board can control the circuit breaker again to connect the cable socket with the battery pack to continue working. And the problem that the battery pack is easy to damage due to long-time working at high temperature is avoided as much as possible.

Description

TECHNICAL FIELD

[0001] The utility model belongs to waterproof lithium battery technical field, concretely relates to a waterproof lithium battery assembly for underwater. BACKGROUND

[0002] Lithium battery is a kind of battery by lithium metal or lithium alloy as positive / negative electrode material, using non-aqueous electrolyte solution, due to the chemical properties of lithium metal is very active, make lithium metal processing, preservation, use, the requirement to environment is very high. With the development of science and technology, lithium battery has become mainstream.

[0003] In the field of underwater welding, lithium battery instantaneous discharge is generally used to ignite underwater cutting rod and underwater electrode for welding work, lithium battery instantaneous discharge current can reach more than five hundred an when welding, high temperature is generated, the existing lithium battery generally does not have high-temperature protection function, when lithium battery high temperature continues to discharge, will lead to battery damage, affect the service life of lithium battery. UTILITY MODEL CONTENTS

[0004] The utility model discloses a waterproof lithium battery assembly for underwater with simple structure and reasonable design solves the above-mentioned problems.

[0005] The utility model discloses the following technical scheme to realize the above-mentioned purpose:

[0006] A waterproof lithium battery assembly for underwater, including the waterproof shell that is equipped with the opening in one side, be provided with battery pack in the cavity of waterproof shell, the cable line socket is installed at the top of waterproof shell, the sealing cover is arranged at the opening of waterproof shell, the sealing cover is fixedly connected with the outer wall of one side away from the sealing cover of waterproof shell, the sealing cover is installed with the control circuit board that is electrically connected with the battery pack through the circuit breaker, the cable line socket is electrically connected with the battery pack through the control circuit board, install temperature sensor on the control circuit board, the detection end of temperature sensor extends to the waterproof shell after penetrating waterproof shell, the sealing cover on the outside of control circuit board is fixedly installed with the display screen that is electrically connected with the control circuit board.

[0007] As a further optimization scheme of the utility model, the sealing frame is fixedly connected with the opening end of the waterproof shell, the sealing groove of annular structure is formed on the side away from the waterproof shell of the sealing frame, and the expansion part of annular structure is arranged in the sealing groove.

[0008] As a further optimization scheme of the utility model, the gap is formed between the inside and outside of the expansion part and the inner wall of the sealing groove, and two rubber sealing rings of annular structure are fixedly installed on the side of the sealing cover close to the sealing frame.

[0009] As a further optimization scheme of the utility model, the interval between the two rubber sealing rings is smaller than the thickness of the expansion part.

[0010] As a further optimization scheme of the utility model, four ear plates are fixedly connected to the inner side wall of the sealing frame, four bolts corresponding to the ear plates are threaded through the sealing cover, the bolts are screwed with the ear plates after penetrating the sealing cover, and a sealing gasket is sleeved on the connection between the bolts and the sealing cover.

[0011] As a further optimization scheme of the utility model, a power button for manually controlling the electrical connection between the cable socket and the battery pack is installed on the side wall of the waterproof shell away from the sealing frame.

[0012] The utility model discloses the beneficial effect lies in: when the temperature sensor detects that the output current of battery pack is too big, causes the battery pack temperature to be too high, will immediately transmit the signal to control circuit board, and control circuit board receives the signal after will immediately control the circuit breaker and disconnect the electrical connection of cable socket and battery pack, and the battery pack is protected, when the temperature sensor detects that battery pack cools to the suitable temperature, control circuit board can control the circuit breaker again and connect the cable socket and battery pack and continue to work, try to avoid the battery pack long time under high temperature work, and the problem that the battery pack is easily damaged is caused. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the whole structure front surface schematic diagram of the utility model;

[0014] Figure 2 It is the whole structure back surface schematic diagram of the utility model;

[0015] Figure 3 It is the installation position schematic diagram of display screen of the utility model;

[0016] Figure 4 It is the waterproof shell internal structure schematic diagram of the utility model;

[0017] Figure 5It is the installation structure schematic view of the sealing cover and the rubber sealing ring of the utility model. In the drawing: 1, waterproof shell; 2, battery pack; 3, cable socket; 4, temperature sensor; 5, power button; 6, sealing cover; 7, control circuit board; 8, display screen; 9, sealing frame; 10, sealing groove; 11, expansion part; 12, sealing cover; 13, rubber sealing ring; 14, bolt; 15, ear plate; 16, sealing gasket. DETAILED DESCRIPTION

[0018] The following further describes the present application in detail with reference to the drawings, and it is necessary to point out here that the following detailed description is only used to further illustrate the present application, and cannot be understood as limiting the protection scope of the present application, and the skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0019] EMBODIMENT

[0020] As Figure 1 - Figure 5 The utility model discloses a waterproof lithium battery assembly for underwater, including the waterproof shell 1 of one side with the opening, the sealing frame 9 of fixed connection with waterproof shell 1 opening end periphery, waterproof shell 1 opening is provided with sealing cover 12, is used to through sealing cover 12 to the opening of waterproof shell 1 is sealed,

[0021] Sealing frame 9 is away from the side of waterproof shell 1 and is opened with the sealing groove 10 of annular structure, is equipped with the expansion part 11 of annular structure in sealing groove 10, and the clearance between the inside and outside of expansion part 11 and the inner wall of sealing groove 10 is left, and the two rubber sealing rings 13 of annular structure are fixedly installed on the side of sealing cover 12 close to sealing frame 9, and the clearance between the inside and outside of expansion part 11 and the inner wall of sealing groove 10 is correspondingly set up with two rubber sealing rings 13, and the interval between two rubber sealing rings 13 is less than the thickness of expansion part 11, and it is convenient to insert rubber sealing ring 13 into the clearance between expansion part 11 and the inner wall of sealing groove 10, since the interval between two rubber sealing rings 13 is less than the thickness of expansion part 11, at this time, expansion part 11 can extrude rubber sealing ring 13 and deform to the two sides, so that rubber sealing ring 13 is tightly attached to the inner wall of sealing groove 10, to improve the waterproof performance of sealing cover 12 after covering,

[0022] Four ear plates 15 are fixedly connected on the inner side wall of sealing frame 9, four bolts 14 are threaded on sealing cover 12 and correspondingly set up with ear plate 15, and the ear plate 15 is screwed with bolt 14 after penetrating sealing cover 12, and the connecting place of bolt 14 and sealing cover 12 is also sleeved with sealing gasket 16, and the connecting mode of screwing is convenient for installing and dismounting sealing cover 12, and sealing gasket 16 is set up to improve the sealing waterproof performance of the connecting place of bolt 14 and sealing cover 12,

[0023] The waterproof shell 1 is fixedly connected with a sealing cover 6 on the outer wall away from the sealing cover 12, a control circuit board 7 electrically connected with the battery pack 2 through a circuit breaker is installed in the sealing cover 6, the cable socket 3 is electrically connected with the battery pack 2 through the control circuit board 7, a temperature sensor 4 is installed on the control circuit board 7, and a detection end of the temperature sensor 4 extends into the waterproof shell 1 through the waterproof shell 1 and is used for detecting the temperature of the battery pack 2 in the waterproof shell 1 through the temperature sensor 4.

[0024] A display screen 8 electrically connected with the control circuit board 7 is fixedly installed on the sealing cover 6 outside the control circuit board 7, the display screen 8 is arranged, the detection temperature of the temperature sensor 4 can be displayed in real time, the power of the battery pack 2 can also be displayed, the user is reminded to charge the battery pack 2 in time, and problems that the battery pack 2 cannot be charged due to power consumption are avoided as much as possible.

[0025] A power button 5 for manually controlling the electrical connection between the cable socket 3 and the battery pack 2 is installed on the side wall of the waterproof shell 1 away from the sealing frame 9, the user can manually control the electrical connection between the cable socket 3 and the battery pack 2 by pressing the power button 5, and the user is convenient to use.

[0026] It should be noted that when the waterproof lithium battery assembly is assembled, the sealing cover 12 is opened, the battery pack 2 is installed in the inner cavity of the waterproof shell 1, then the sealing cover 12 is closed, and the sealing cover 12 is screw-fixed through the bolt 14 and the lug plate 15, so that the assembly of the lithium battery assembly is completed. When the sealing cover 12 is closed at the opening of the waterproof shell 1, the two rubber sealing rings 13 are embedded in the sealing grooves 10 on the two sides of the expansion part 11. Since the spacing between the two rubber sealing rings 13 is less than the thickness of the expansion part 11, the expansion part 11 can extrude the rubber sealing ring 13 on both sides to deform, so that the rubber sealing ring 13 is tightly fitted with the inner wall of the sealing groove 10, and the waterproof performance of the whole lithium battery assembly is improved.

[0027] When underwater welding work is performed, the underwater welding gun is electrically connected with the battery pack 2 through the cable socket 3, the instantaneous current of the battery pack 2 can reach 400 A, and is used for igniting the welding rod installed on the welding gun to perform welding work. When the temperature sensor 4 detects that the output current of the battery pack 2 is too large, the temperature of the battery pack 2 is too high, a signal is immediately transmitted to the control circuit board 7, the control circuit board 7 receives the signal and immediately controls the circuit breaker to disconnect the electrical connection between the cable socket 3 and the battery pack 2. When the temperature sensor 4 detects that the battery pack 2 is cooled to a suitable temperature, the control circuit board 7 can control the circuit breaker to connect the cable socket 3 and the battery pack 2 again to continue working, so as to avoid the problem that the battery pack 2 is easily damaged due to long-time work at high temperature.

[0028] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several deformations and improvements can be made, which belong to the protection range of the utility model.

Claims

1. A waterproof lithium battery assembly for underwater use, comprising a waterproof housing (1) with an opening on one side, a battery pack (2) disposed within the inner cavity of the waterproof housing (1), a cable socket (3) mounted on the top of the waterproof housing (1), and a sealing cap (12) provided at the opening of the waterproof housing (1), characterized in that: A sealing cover (6) is fixedly connected to the outer wall of the waterproof housing (1) away from the sealing cover (12). A control circuit board (7) electrically connected to the battery pack (2) via a circuit breaker is installed inside the sealing cover (6). The cable socket (3) is electrically connected to the battery pack (2) via the control circuit board (7). A temperature sensor (4) is installed on the control circuit board (7). The detection end of the temperature sensor (4) extends through the waterproof housing (1) and into the waterproof housing (1). A display screen (8) electrically connected to the control circuit board (7) is fixedly installed on the sealing cover (6) outside the control circuit board (7).

2. The waterproof lithium battery assembly for underwater use according to claim 1, characterized in that: A sealing frame (9) is fixedly connected to the periphery of the opening end of the waterproof shell (1). A sealing groove (10) with an annular structure is opened on the side of the sealing frame (9) away from the waterproof shell (1). An expansion part (11) with an annular structure is provided in the sealing groove (10).

3. A waterproof lithium battery assembly for underwater use according to claim 2, characterized in that: The expansion part (11) has gaps between its inner and outer sides and the inner wall of the sealing groove (10). The sealing cover (12) has two annular rubber sealing rings (13) fixedly installed on the side near the sealing frame (9). The two rubber sealing rings (13) are respectively set to correspond to the gaps formed between the inner and outer sides of the expansion part (11) and the inner wall of the sealing groove (10).

4. A waterproof lithium battery assembly for underwater use according to claim 3, characterized in that: The distance between the two rubber sealing rings (13) is less than the thickness of the expansion portion (11).

5. A waterproof lithium battery assembly for underwater use according to claim 4, characterized in that: Four ear plates (15) are fixedly connected to the inner side wall of the sealing frame (9). Four bolts (14) corresponding to the ear plates (15) are installed on the sealing cover (12). The bolts (14) pass through the sealing cover (12) and are screwed to the ear plates (15). A sealing gasket (16) is also fitted at the connection between the bolts (14) and the sealing cover (12).

6. A waterproof lithium battery assembly for underwater use according to claim 5, characterized in that: A power button (5) for manually controlling the electrical connection between the cable socket (3) and the battery pack (2) is installed on the side wall of the waterproof housing (1) away from the sealing frame (9).

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