Lead-acid storage battery convenient for safe exhaust

Abstract

The utility model discloses a lead-acid storage battery convenient to exhaust safely, which comprises a storage battery, and a first exhaust hole, a second exhaust hole and two wiring terminals are arranged on the storage battery; the storage battery is also provided with a terminal cap matched with the wiring terminal, the terminal cap is connected with an air passage plug, and the terminal cap is connected with the air passage plug through an elastic connecting piece; the air channel plug is matched with the second exhaust hole, and the first exhaust hole is connected with an exhaust pipe. According to the utility model, the terminal cap and the air passage plug are integrally connected, so that the problem that the air passage plug is easy to fall off and lose is solved, meanwhile, the sealing reliability is ensured through the special structural design of the air passage plug, and the air passage plug has the characteristics of high safety and strong practicability.

Description

Technical Field

[0001] The present application relates to the technical field of lead-acid batteries, and in particular to a lead-acid battery that facilitates safe venting. Background Art

[0002] During the charging process of a lead-acid battery, the acidic liquid inside the battery decomposes into hydrogen and oxygen, releasing a certain amount of heat energy. If these gases are not discharged from the battery in a timely manner, the internal pressure of the battery will increase, and the battery may even explode. Batteries also produce gases during use. Therefore, the installation of exhaust ducts is very important for the safe and stable operation of lead-acid batteries. The installation of exhaust ducts can prevent problems such as overheating, overvoltage, and even explosion from occurring, ensuring the normal operation of the battery.

[0003] In addition, with increasing user demand, more and more cars are placing batteries in closed environments, especially new energy vehicles. In this case, the gases generated by battery charging and discharging need to be directed out of the vehicle. This is generally achieved by inserting an air duct into the exhaust hole on one side of the battery. In this case, the exhaust hole on the other side of the battery needs to be blocked with an airway plug. However, in actual use, there are the following problems: First, most of the existing lead-acid battery replacement products on the market only have terminal caps and are not equipped with airway plugs. The airway plugs used for the original vehicle battery are difficult to remove and reuse. If the airway plugs are packaged separately, on the one hand, the packaging cost increases, and on the other hand, the airway plugs are small in size and easily lost when packaged separately. Second, the airway plugs are prone to falling off or leaking. Once they fall off, acidic gas and liquid will flow out, contaminating and corroding other components, causing significant damage to the vehicle. Utility Model Content

[0004] The purpose of the present invention is to provide a lead-acid battery that is easy to safely vent in order to solve the problems mentioned in the background art.

[0005] The problem described in this utility model is solved by the following technical solutions:

[0006] A lead-acid battery that facilitates safe venting includes a battery, wherein a first vent hole, a second vent hole, and two wiring terminals are provided on the battery; the battery is provided with a terminal cap that matches the wiring terminals, the terminal cap is connected to an airway plug, and the terminal cap and the airway plug are connected by an elastic connecting piece; the airway plug matches the second vent hole, and the first vent hole is connected to an exhaust pipe.

[0007] The above-mentioned lead-acid battery facilitating safe exhaust has the second exhaust hole with a two-stage structure. The part near the hole opening is a cylindrical hole, and the part near the hole bottom is a conical hole. The airway plug has a two-stage structure matching the second exhaust hole and is composed of a cylinder section and a cone section. A first blind hole is provided on the cone section of the airway plug.

[0008] In the above-mentioned lead-acid battery facilitating safe exhaust, a convex ring is provided on the outer side wall of the cone section, and a groove matching the convex ring is provided on the inner wall of the second exhaust hole.

[0009] In the above-mentioned lead-acid battery facilitating safe exhaust, the distance from the convex ring to the bottom of the airway plug is less than the depth of the first blind hole.

[0010] In the above-mentioned lead-acid battery facilitating safe exhaust, the terminal cap body is cylindrical and consists of a cap body and a cap brim. The top of the cap body is closed and buckled on the wiring terminal. The cap brim is located at the bottom of the cap body and extends outward along the circumferential direction of the cap body.

[0011] In the above-mentioned lead-acid battery facilitating safe exhaust, a first reinforcing rib is provided on the inner wall of the terminal cap, and a second reinforcing rib is provided on the outer wall. The first reinforcing rib and the second reinforcing rib are parallel to the axis direction of the terminal cap. The number of the first reinforcing rib and the second reinforcing rib is 3 - 4. Beneficial effects

[0012] Compared with the prior art, the present utility model has the following advantages: First, by connecting the terminal cap and the airway plug into one body through an elastic connecting piece, not only can the packaging cost of the airway plug be eliminated, but also the problem that the separately packaged airway plug is easily lost, leading to the inflow of acidic liquid into the vehicle body and corroding the vehicle body, can be solved. Second, both the airway plug and the second exhaust hole are set to have a two-stage structure. The setting of the cone section of the airway plug and the first blind hole helps the head of the airway plug to smoothly enter the second exhaust hole, facilitating operation in a narrow space. Third, through the cooperation of the first blind hole and the convex ring on the airway plug, the distance from the convex ring to the top of the airway plug is less than the depth of the first blind hole, which helps to form a certain positive micro-pressure inside when the gas-liquid discharges into the first blind hole, squeezing the convex ring to better fit the groove on the inner wall of the second exhaust hole, thus making the seal more effective. Fourth, by respectively providing the first reinforcing rib and the second reinforcing rib on the inner wall and the outer wall of the terminal cap, the structural strength of the terminal cap can be increased, further facilitating the buckling and removal of the terminal cap. Description of the drawings

[0013] The following further details the present utility model with reference to the drawings.

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the terminal cap and the airway plug of the present utility model;

[0016] Figure 3 It is a schematic diagram of the local structure of the utility model;

[0017] The reference numerals in the figure represent:

[0018] 1. Battery, 2. Terminal cap, 3. Airway plug, 1-1. First vent hole, 1-2. Second vent hole, 1-3. Terminal block, 2-1. First reinforcing rib, 2-2. Second reinforcing rib, 3-1. Cylindrical segment, 3-2. Conical segment, 3-2-1. First blind hole, 3-2-2. Protruding ring. DETAILED DESCRIPTION

[0019] See Figures 1-3 The utility model includes a battery 1, which is provided with a first exhaust hole 1-1, a second exhaust hole 1-2, and a wiring terminal 1-3, and the number of the wiring terminals is 2; the battery 1 is provided with a terminal cap 2 matching the wiring terminal 1-3, and the terminal cap 2 is connected to an airway plug 3, and the terminal cap 2 and the airway plug 3 are connected by an elastic connecting piece 4; the airway plug 3 matches the second exhaust hole 1-2, and the first exhaust hole 1-1 is connected to an exhaust pipe 1-5.

[0020] The elastic connector 4 can be a rubber band or elastic cord made of natural rubber or synthetic rubber, or alternatively, silicone. By integrally connecting the terminal cap and the airway plug 3 via the elastic connector 4, the cost of packaging the airway plug 3 is eliminated, and the problem of separate packaging of the airway plug 3 being easily lost, which could cause acidic liquid to flow into and corrode the vehicle body, is solved.

[0021] To facilitate the integration of the airway plug 3 and the second vent 1-2, the second vent 1-2 has a two-stage structure, with a cylindrical hole near the opening and a conical hole near the bottom. The airway plug 3 is a two-stage structure that matches the second vent 1-2, consisting of a cylindrical section 3-1 and a conical section 3-2. The conical section 3-2 of the airway plug 3 is provided with a first blind hole 3-2-1, located at the end of the airway plug 3. The provision of the conical section 3-2 and the first blind hole 3-2-1 both facilitate the smooth entry of the head of the airway plug 3 into the second vent 1-2.

[0022] To enhance the airway plug's airtightness, a raised ring 3-2-2 is provided on the outer wall of the conical section 3-2, and a groove matching the raised ring 3-2-2 is provided on the inner wall of the second vent hole 1-2. The distance from the raised ring 3-2-2 to the top of the airway plug 3 is less than the depth of the first blind hole 3-2-1, meaning that the raised ring 3-2-2 is located on the outer wall of the first blind hole 3-2-1.

[0023] The distance from the convex ring 3-2-2 to the top of the air duct plug 3 is less than the depth of the first blind hole 3-2-1, which helps to form a certain slightly positive pressure in the first blind hole 3-2-1 when the gas-liquid is discharged into it, squeezing the convex ring 3-2-2 to fit better with the groove on the inner wall of the second exhaust hole 1-2, so that the sealing is more effective.

[0024] For the convenience of buckling and removing the terminal cap 2: The cap body of the terminal cap 2 is cylindrical and consists of a cap body and a cap brim. The top of the cap body is closed and buckled on the terminal. The cap brim is located at the bottom of the cap body and extends outward along the circumferential direction of the cap body.

[0025] Due to the structural characteristics of the storage battery, the space around the terminal 1-3 is narrow. Therefore, the wall thickness of the terminal cap will be limited. Therefore, the following method is used to increase the structural strength of the terminal cap to further facilitate the buckling and removal of the terminal cap: A first reinforcing rib 2-1 is provided on the inner wall of the terminal cap 2, and a second reinforcing rib 2-2 is provided on the outer wall; the first reinforcing rib 2-1 and the second reinforcing rib 2-2 are parallel to the axis direction of the terminal cap 2; the number of the first reinforcing rib 2-1 and the second reinforcing rib 2-2 is 3-4.

Claims

1. A lead-acid battery facilitating safe exhaust, characterized in that, It includes a storage battery (1) on which a first exhaust hole (1-1), a second exhaust hole (1-2), and connection terminals (1-3) are provided, and the number of connection terminals is 2; a terminal cap (2) matching the connection terminals (1-3) is provided on the storage battery (1), an air duct plug (3) is connected to the terminal cap (2), and the terminal cap (2) and the air duct plug (3) are connected by an elastic connecting member (4); the air duct plug (3) matches the second exhaust hole (1-2), and an exhaust pipe (1-5) is connected to the first exhaust hole (1-1).

2. The lead-acid battery facilitating safe exhaust gas according to claim 1, wherein, The second exhaust hole (1-2) has a two-stage structure, a cylindrical hole near the orifice and a conical hole near the bottom of the hole; the air duct plug (3) has a two-stage structure matching the second exhaust hole (1-2) and is composed of a cylinder section (3-1) and a cone section (3-2), and a first blind hole (3-2-1) is provided on the cone section (3-2) of the air duct plug (3).

3. The lead-acid battery facilitating safe exhaust according to claim 2, wherein A convex ring (3-2-2) is provided on the outer wall of the cone section (3-2), and a groove matching the convex ring (3-2-2) is provided on the inner wall of the second exhaust hole (1-2).

4. The lead-acid battery facilitating safe exhaust according to claim 3, characterized in that, The distance from the convex ring (3-2-2) to the bottom of the air duct plug (3) is less than the depth of the first blind hole (3-2-1).

5. The lead-acid battery facilitating safe exhaust according to claim 1, wherein The cap body of the terminal cap (2) is cylindrical and consists of a cap body and a cap brim. The top of the cap body is closed and buckled on the connection terminal, and the cap brim is located at the bottom of the cap body and extends outward along the circumference of the cap body.

6. The lead-acid battery facilitating safe exhaust according to claim 1, wherein First reinforcing ribs (2-1) are provided on the inner wall of the terminal cap (2), and second reinforcing ribs (2-2) are provided on the outer wall; the first reinforcing ribs (2-1) and the second reinforcing ribs (2-2) are parallel to the axis direction of the terminal cap (2); the number of the first reinforcing ribs (2-1) and the second reinforcing ribs (2-2) is 3-4.

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