Underwater waterproof battery with built-in Hall device

Abstract

The utility model provides an underwater waterproof battery with a built-in Hall device, which comprises a waterproof shell, a battery pack, a PCB (printed circuit board) and the Hall device arranged above the PCB, an upper shell cover and a lower shell can form clamping fit, an outer pressing block is pressed into an inlaying groove to extrude a first rubber ring to form first sealing fit between the upper shell cover and the lower shell, and the Hall device is arranged above the battery pack. And the convex block is pressed into the groove to extrude the second rubber ring to form second sealing fit between the upper shell cover and the lower shell. According to the utility model, the first sealing fit of the outer layer is used as a first defensive line and can effectively block the invasion of most moisture, and the second sealing fit of the inner layer can be used as a second defensive line even if the first sealing fit is slightly damaged or leaked under some extreme conditions, so that the moisture is further prevented from entering the battery.

Description

Technical Field

[0001] The utility model relates to the technical field of batteries, in particular to an underwater waterproof battery with a built-in Hall device. Background Art

[0002] Underwater batteries are often used in underwater equipment such as diving equipment and ocean exploration instruments, which need to work underwater for a long time. Water contacting the electrolyte or chemicals inside the battery may cause short circuits, current leakage or battery overheating, which will not only damage the battery, but may also cause dangerous situations such as fire or explosion. Waterproof design can protect the battery from moisture erosion and maintain its stable performance output. Waterproof design can ensure that the battery can work normally in these special environments without being affected by moisture. Many waterproof batteries on the market have a sealed structure for waterproofing.

[0003] For example, a waterproof shell for installing a lithium battery pack (publication number: CN219513245U, publication date: 2023-08-11) includes an upper shell and a lower shell. The upper shell and the lower shell can form a snap-fit ​​fit. When the upper shell is connected to the lower shell, an installation cavity for installing the battery pack and the circuit board is formed inside. The edge of the lower shell is provided with a downwardly recessed inlay groove, and a sealing rubber ring is provided in the inlay groove. A top pressure block is provided at the edge of the upper shell facing the inlay groove, and the top pressure block is adapted to the inlay groove. When the upper shell is connected to the lower shell, the top pressure block extends into the inlay groove to squeeze the sealing rubber ring, and forms a sealing fit between the two.

[0004] When the upper shell and the lower shell of the waterproof shell are connected, the sealing rubber ring is squeezed so that it can fit tightly between the embedding groove and the top pressure block to form a sealing fit between the two, thereby improving the sealing performance of the connection between the upper shell and the lower shell to prevent water vapor from damaging the battery pack. However, the sealing structure of the shell is only single-layer, which is not strong enough to prevent water vapor. Moreover, the upper shell and the lower shell of the shell are only sealed together, lacking an external clamping device. Once the waterproof shell is subjected to a large external pressure, the upper shell and the lower shell are easily disconnected. Utility Model Content

[0005] In view of the technical defects existing in the background technology, the utility model proposes an underwater waterproof battery with a built-in Hall device, which solves the above technical problems and meets the actual needs. The specific technical solution is as follows:

[0006] An underwater waterproof battery with a built-in Hall device, comprising a waterproof housing, a battery pack, a PCB board, and a Hall device arranged above the PCB board, wherein the waterproof housing comprises an upper housing cover arranged at the top and a lower housing arranged below the upper housing cover, wherein the lower housing is hollow, and a clamping device is arranged between the upper housing cover and the lower housing;

[0007] A circle of upwardly protruding blocks is provided on the inner wall at the top end of the lower shell body, a circle of downwardly recessed inlay grooves is provided between the protruding blocks and the inner wall of the lower shell body, an outer pressure block is provided at the bottom end of the upper shell cover, which is protruding downward and matches the inlay groove, a first rubber ring is provided between the outer pressure block and the inlay groove, the outer pressure block is pressed into the inlay groove to extrude the first rubber ring to form a first sealing fit between the upper shell cover and the lower shell body; a circle of inner pressure blocks is provided on the inner side of the outer pressure block, a groove matching the protrusion is provided between the outer pressure block and the inner pressure block, a second rubber ring is provided between the protrusion and the groove, the protrusion is pressed into the groove to extrude the second rubber ring to form a second sealing fit between the upper shell cover and the lower shell body.

[0008] As a further technical solution of the utility model, the clamping device is arranged on the outside of the waterproof shell, and the clamping device is used to achieve close contact between the upper shell cover and the lower shell body.

[0009] As a further technical solution of the utility model, the battery pack, PCB board and Hall device are respectively arranged in a cavity formed by connecting the upper shell cover and the lower shell body, the PCB board is arranged above the battery pack and the PCB board is electrically connected to the battery pack, and the Hall device is electrically connected to the PCB board.

[0010] As a further technical solution of the utility model, a connector with a protruding structure is provided on the top of the shell cover, the PCB board is connected to the outside world through the connector, and the connector is integrated with the upper shell cover.

[0011] As a further technical solution of the utility model, the second rubber ring is provided with a first end and a second end which are perpendicular to each other, the first end and the second rubber ring are embedded in the groove, and the second end is provided at one end of the inner pressure block close to the outer pressure block.

[0012] As a further technical solution of the utility model, a circle of limiting grooves is provided at the top edge of the lower shell body, and a circle of limiting blocks matching the limiting grooves is provided at the bottom edge of the upper shell cover. The cross-section of the limiting blocks is an inverted cone structure that narrows from top to bottom, and the cross-section of the limiting groove is consistent with the cross-sectional shape of the limiting block.

[0013] As a further technical solution of the utility model, the external pressure block is interference fit with the embedding groove, the protrusion is interference fit with the groove, and the position of the second sealing fit is higher than the position of the first sealing fit.

[0014] The beneficial effects of the utility model are:

[0015] The utility model utilizes an external pressure block, a first rubber ring and an embedding groove to form a first sealing fit, and utilizes a protrusion, a groove and a second rubber ring to form a second sealing fit. The two layers of sealing fit present an inner and outer annular structure. The outer first sealing fit serves as a first line of defense and can effectively block the intrusion of most moisture. Even if the first sealing fit is slightly damaged or leaks in certain extreme cases, the inner second sealing fit can also serve as a second line of defense to further prevent moisture from entering the battery.

[0016] At the same time, the utility model provides a clamping device on the outside of the waterproof shell, which is used to achieve close contact between the upper shell cover and the lower shell body, and prevent the waterproof shell from being subjected to large external pressure, causing the upper shell cover and the lower shell body to be disconnected from the tight connection, affecting the sealing, causing water vapor to enter and damage the battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of an underwater waterproof battery with a built-in Hall device.

[0018] Figure 2 The present invention is a diagram showing the internal structure of an underwater waterproof battery with a built-in Hall device, in which an upper shell cover and a lower shell are connected.

[0019] Figure 3 This is a diagram of the internal structure of an underwater waterproof battery with a built-in Hall device, with the upper shell cover and the lower shell connected from another perspective.

[0020] Figure 4 for Figure 2 AA partial enlargement image.

[0021] Figure 5 for Figure 3 A partial enlarged view of BB.

[0022] Among them: upper shell cover 1, outer pressure block 11, inner pressure block 12, groove 13, connector 14, limit block 15, lower shell 2, protrusion 21, inlay groove 22, limit groove 23, PCB board 3, Hall device 4, battery pack 5, first rubber ring 6, second rubber ring 7, buckle 8. DETAILED DESCRIPTION

[0023] The following is combined with Figures 1 to 5 The implementation methods of the present invention are described with relevant embodiments, but the implementation methods of the present invention are not limited to the following embodiments, and the present invention involves relevant necessary components in this technical field, which should be regarded as the known technology in this technical field and can be known and mastered by the technicians in this technical field.

[0024] Underwater waterproof batteries can work normally in underwater environments without being affected by water intrusion. This battery has a high degree of waterproof performance and can ensure a stable power supply in underwater applications. Underwater waterproof batteries usually use special packaging and sealing technology to prevent water penetration. The utility model provides an underwater waterproof battery with a built-in Hall device, such as Figure 2 As shown, it includes a waterproof housing, a battery pack 5, a PCB board 3, and a Hall device 4 arranged above the PCB board 3, as shown in FIG. Figure 1 As shown, the waterproof housing includes an upper shell cover 1 arranged at the top and a lower shell 2 arranged below the upper shell cover 1, and the lower shell 2 is hollow.

[0025] The utility model has a built-in Hall device 4, which is a Hall switch including a Hall sensor and a magnetic ring. Its working principle is based on the Hall effect, that is, when the magnetic field passes through the Hall sensor, a potential difference is generated inside it, thereby detecting the change of the magnetic field. When the position or state of the magnetic ring changes, the Hall sensor can detect the change of the magnetic field and then control the opening and closing state of the Hall switch. By accurately controlling the magnetic ring, we can achieve accurate control of the Hall switch, thereby controlling the power supply state of the battery.

[0026] like Figure 2 and Figure 4 As shown, the inner wall of the top of the lower shell 2 is provided with a circle of upwardly protruding blocks 21, and a circle of downwardly recessed inlay grooves 22 is provided between the protruding blocks 21 and the inner wall of the lower shell 2. The bottom of the upper shell cover 1 is provided with an outer pressing block 11 that protrudes downward and matches the inlay groove 22, and a first rubber ring 6 is provided between the outer pressing block 11 and the inlay groove 22. The outer pressing block 11 is pressed into the inlay groove 22 to squeeze the first rubber ring 6 to form a first sealing fit between the upper shell cover 1 and the lower shell 2. Figure 3 and Figure 5 As shown, a circle of inner pressure blocks 12 is provided on the inner side of the outer pressure block 11, a groove 13 matching the protrusion 21 is provided between the outer pressure block 11 and the inner pressure block 12, a second rubber ring 7 is provided between the protrusion 21 and the groove 13, and the protrusion 21 is pressed into the groove 13 to squeeze the second rubber ring 7 to form a second sealing fit between the upper shell cover 1 and the lower shell 2.

[0027] The utility model utilizes the outer pressure block 11, the first rubber ring 6 and the embedding groove 22 to form a first sealing fit, and utilizes the protrusion 21, the groove 13 and the second rubber ring 7 to form a second sealing fit. The two layers of sealing fit present an inner and outer annular structure. The outer first sealing fit serves as a first line of defense and can effectively block the intrusion of most moisture. Even if the first sealing fit is slightly damaged or leaks in certain extreme cases, the inner second sealing fit can also serve as a second line of defense to further prevent moisture from entering the battery.

[0028] At the same time, a clamping device 8 is provided between the upper shell cover 1 and the lower shell 2. The utility model provides a clamping device 8 on the outside of the waterproof shell. The clamping device 8 is used to achieve close contact between the upper shell cover 1 and the lower shell 2, and prevent the waterproof shell from being subjected to large external pressure, causing the upper shell cover 1 and the lower shell 2 to be disconnected from the tight connection, affecting the sealing, causing water vapor to enter and damage the battery.

[0029] As one of the preferred embodiments of the utility model, the external pressure block 11 and the inlay groove 22 are interference fit, the protrusion 21 and the groove 13 are interference fit, and the position of the second sealing fit is higher than the position of the first sealing fit. The interference fit can effectively prevent the connection between the external pressure block 11 and the inlay groove 22, the protrusion 21 and the groove 13 from falling off, and ensure the stability and reliability of the upper shell cover 1 and the lower shell 2.

[0030] Furthermore, the first sealing fit and the second sealing fit are staggered. By staggering the sealing fit, the complexity and diversity of the sealing fit can be increased, thereby more effectively preventing water vapor from leaking from the gap. The staggered setting can also help disperse the stress at the sealing fit and improve the stability and durability of the entire structure. Compared to being level with or lower than the first sealing fit, the position of the second sealing fit is higher than the position of the first sealing fit, so that the second sealing fit forms a barrier between the first sealing fit and the cavity formed by the connection between the upper shell cover 1 and the lower shell 2. Even if the first sealing fit is slightly damaged or leaks in some extreme cases, the water vapor in the first sealing fit is first blocked by the protrusion 21 and then blocked by the second sealing fit.

[0031] As one of the preferred embodiments of the present invention, Figure 3 As shown, the clamping device 8 is arranged outside the waterproof housing, and the clamping device 8 is used to achieve close contact between the upper shell cover 1 and the lower shell 2. The clamping device 8 is selected according to the actual use, including spring buckle, rotating buckle, latch buckle, lock buckle. Figure 3 and Figure 5 As shown, in this embodiment, the clamping device 8 uses a lock buckle, which is arranged on the outside of the lower shell 2. By flipping the buckle, it is tightly clamped on the upper shell cover 1, thereby clamping the upper shell cover 1 and the lower shell 2. The close contact between the upper shell cover 1 and the lower shell 2 is achieved, and the waterproof housing is prevented from being subjected to a large external pressure, and the upper shell cover 1 and the lower shell 2 are disconnected from the tight connection, affecting the sealing, causing water vapor to enter and damage the battery.

[0032] As one of the preferred embodiments of the present invention, Figure 2As shown, the battery pack 5, the PCB board 3 and the Hall device 4 are respectively arranged in the cavity formed by the upper shell cover 1 and the lower shell 2, the PCB board 3 is arranged above the battery pack 5 and the PCB board 3 is electrically connected to the battery pack 5, and the Hall device 4 is electrically connected to the PCB board 3. The PCB board 3 integrates the battery management chip and related circuits, which is responsible for the battery charging, discharging, power detection and other operations. This management function can ensure that the battery works under safe and stable conditions, and has protection functions such as overcharging, over-discharging, and overcurrent, thereby extending the service life of the battery. Furthermore, the PCB board 3 may also use a special waterproof coating or packaging technology to further improve its waterproof performance.

[0033] The Hall device 4 is used to control whether the battery starts to supply power. Through the Hall device 4, accurate control of the battery power supply can be achieved to ensure that the power supply is turned on in time when power supply is needed, and the power supply can be turned off in time when power supply is not needed to save energy. The battery pack 5 includes a plurality of batteries. Preferably, there is a partition between the battery pack 5 and the PCB board 3 to separate the two, so as to prevent the heat, sparks or leaked electrolyte that may be generated by the battery during operation from damaging the electronic components on the PCB board 3.

[0034] As one of the preferred embodiments of the utility model, a connector 14 with a raised structure is provided on the top of the shell cover, and the PCB board 3 is connected to the outside world through the connector 14, and the connector 14 is integrated with the upper shell cover 1. As an interface between the PCB board 3 and external devices, the connector 14 must have a high degree of sealing to prevent moisture penetration. Therefore, in this embodiment, the connector 14 is integrated with the upper shell cover 1 to ensure its sealing degree with the upper shell cover 1, and the contact position between the connector 14 and the connecting wire needs to be coated with a waterproof coating to prevent moisture penetration.

[0035] As one of the preferred embodiments of the present invention, Figure 5 As shown, the second rubber ring 7 is provided with a first end and a second end perpendicular to each other, the first end of the second rubber ring 7 is embedded in the groove 13, and the second end is provided at an end of the inner pressure block 12 close to the outer pressure block 11. The first end of the second rubber ring 7 is provided between the top of the protrusion 21 and the groove 13, and the second end is provided at an end where the protrusion 21 and the inner pressure block 12 are close to each other. Compared with a rubber ring only provided between the protrusion 21 and the groove 13, the second rubber ring 7 with a first end and a second end perpendicular to each other can match the shapes of the inner pressure block 12 and the protrusion 21, so that the sealing degree between the two is higher.

[0036] As one of the preferred embodiments of the present invention, Figure 4As shown, a circle of limiting grooves 23 are provided at the top edge of the lower shell 2, and a circle of limiting blocks 15 matching the limiting grooves 23 are provided at the bottom edge of the upper shell cover 1. The cross section of the limiting blocks 15 is an inverted cone structure that narrows from top to bottom, and the cross section of the limiting grooves 23 is consistent with the cross section of the limiting blocks 15. As the edges of the upper shell cover 1 and the lower shell 2, the utility model sets matching limiting grooves 23 and limiting blocks 15, and the cross section of the limiting blocks 15 is an inverted cone structure that narrows from top to bottom. When the upper shell cover 1 is connected to the lower shell 2, it plays a role in guiding and positioning, and the inverted cone structure is easier to enter the limiting groove 23, so that the first sealing fit and the second sealing fit are easier to connect.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An underwater waterproof battery with a built-in Hall device, comprising a waterproof housing, a battery pack (5), a PCB board (3), and a Hall device (4) arranged above the PCB board (3), characterized in that: The waterproof housing comprises an upper shell cover (1) arranged at the top and a lower shell body (2) arranged below the upper shell cover (1); the lower shell body (2) is hollow inside, and a clamping device (8) is provided between the upper shell cover (1) and the lower shell body (2); The top inner wall of the lower shell (2) is provided with a circle of upwardly protruding blocks (21), a circle of downwardly recessed inlay grooves (22) is provided between the protruding blocks (21) and the inner wall of the lower shell (2), the bottom end of the upper shell cover (1) is provided with an outer pressure block (11) which is downwardly protruding and matches the inlay groove (22), a first rubber ring (6) is provided between the outer pressure block (11) and the inlay groove (22), the outer pressure block (11) is pressed into the inlay groove (22) to squeeze the first rubber ring (6) to form an upper A first sealing fit between the shell cover (1) and the lower shell (2); a circle of inner pressure blocks (12) are provided on the inner side of the outer pressure block (11); a groove (13) matching the protrusion (21) is provided between the outer pressure block (11) and the inner pressure block (12); a second rubber ring (7) is provided between the protrusion (21) and the groove (13); the protrusion (21) is pressed into the groove (13) to squeeze the second rubber ring (7) to form a second sealing fit between the upper shell cover (1) and the lower shell (2).

2. The underwater waterproof battery with built-in Hall device according to claim 1, characterized in that: The clamping device (8) is arranged outside the waterproof housing, and the clamping device (8) is used to achieve close contact between the upper shell cover (1) and the lower shell body (2).

3. The underwater waterproof battery with built-in Hall device according to claim 1, characterized in that: The battery pack (5), the PCB board (3) and the Hall device (4) are respectively arranged in a cavity formed by connecting the upper shell cover (1) and the lower shell (2); the PCB board (3) is arranged above the battery pack (5) and the PCB board (3) is electrically connected to the battery pack (5); and the Hall device (4) is electrically connected to the PCB board (3).

4. The underwater waterproof battery with built-in Hall device according to claim 1, characterized in that: A connector (14) with a protruding structure is provided at the top of the shell cover, the PCB board (3) is connected to the outside world via the connector (14), and the connector (14) and the upper shell cover (1) are arranged in an integrated manner.

5. The underwater waterproof battery with built-in Hall device according to claim 1, characterized in that: The second rubber ring (7) is provided with a first end and a second end which are perpendicular to each other, the first end being embedded in the groove (13), and the second end being provided at an end of the inner pressure block (12) close to the outer pressure block (11).

6. The underwater waterproof battery with built-in Hall device according to claim 1, characterized in that: A circle of limiting grooves (23) is provided at the top edge of the lower shell body (2), and a circle of limiting blocks (15) matching the limiting grooves (23) are provided at the bottom edge of the upper shell cover (1), wherein the cross section of the limiting blocks (15) is an inverted cone structure that narrows from top to bottom, and the cross section of the limiting grooves (23) is consistent with the cross section of the limiting blocks (15).

7. The underwater waterproof battery with built-in Hall device according to claim 1, characterized in that: The external pressure block (11) and the embedding groove (22) are in interference fit, the protrusion (21) and the groove (13) are in interference fit, and the position of the second sealing fit is higher than the position of the first sealing fit.

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