Valve regulated battery large cover with positioning structure

Abstract

A valve-controlled battery large cover with positioning structure, comprising a large cover, one side of the large cover is a small cover area, the small cover area has an exhaust area, the exhaust area includes a plurality of exhaust plug holes arranged in sequence along the length direction of the battery, the rear of the exhaust hole of the large cover has a retreat stop buckle for positioning the protruding point 9 of the starting point of the thread of the exhaust plug 4, the front of the small cover area at the hole of each exhaust plug hole has a positioning mark for positioning the exhaust plug installed at the exhaust plug hole, each positioning mark is located between the inner hot melt rib and the exhaust plug hole, and each positioning mark includes a 0° mark, a 30° mark, a -30° mark and a -60° mark; when the battery is installed with the upper exhaust plug, the installation angle is: based on the 0° line, the installation angle of the dry battery qualified is -60° to -30°, and the installation angle of the wet battery qualified is 0° to 30°, which ensures the consistency of the installation position of the exhaust plug, and improves and enhances the risk of battery out of control.

Description

Technical Field

[0001] This utility model belongs to the field of storage battery technology, specifically a valve-regulated storage battery cover. Background Technology

[0002] Valve-regulated lead-acid batteries typically have a vent valve (also called a safety valve) structure on their main cover. Six independent vent valves are screwed onto the cover, compressing the rubber gaskets on the vent valves to achieve a seal with the cover. This serves to control internal pressure, preventing the risk of explosion; prevent electrolyte leakage and external substance intrusion; reduce acid mist emissions, ensuring safety and environmental protection. Improper or non-standard installation of the vent valves can lead to quality control issues. Summary of the Invention

[0003] The purpose of this utility model is to overcome the above-mentioned shortcomings of the prior art and provide a valve-controlled battery cover with a positioning structure to solve the risk of quality loss due to non-standard installation and inadequate management of the exhaust valve.

[0004] The technical solution of this utility model is: a valve-controlled battery cover with a positioning structure, including a large cover, a small cover area on one side of the large cover, a venting area, the venting area including multiple vent plug holes arranged sequentially along the length of the battery, an inner heat-melting rib on the inner side of the front of the small cover area, an outer heat-melting rib on the outer side of the front of the small cover area, a locking buckle at the end of the thread of the vent hole on the back of the large cover for positioning the starting point of the thread of the vent plug, and a set of positioning marks for positioning the vent plug installed at each vent hole on the front of the small cover area at the opening of each vent plug hole, each set of positioning marks being located between the inner heat-melting rib and the vent plug hole, and each set of positioning marks including 0° mark, 30° mark, -30° mark, and -60° mark;

[0005] The vent plug is installed at the vent plug hole: When the vent plug surface positioning point is aligned with the 0° mark, the line connecting the vent plug surface positioning point and the 0° mark is the 0° line, which is parallel to the wide edge of the cover; when the vent plug surface positioning point is aligned with the 30° mark, the angle between line A connecting the vent plug surface positioning point and the 30° mark and the 0° line is 30°; when the vent plug surface positioning point is aligned with the -30° mark, the angle between line B connecting the vent plug surface positioning point and the -30° mark and the 0° line is 30°; when the vent plug surface positioning point is aligned with the -60° mark, the angle between line C connecting the vent plug surface positioning point and the -60° mark and the 0° line is 60°, and the intersection point of the extended lines A, B, and C coincides with the center of the vent hole on the cover.

[0006] The inner / outer hot melt ribs include long hot melt ribs and short hot melt ribs.

[0007] There are two raised points on the threaded end of the exhaust port on the back of the cover. The two raised points form a backstop, and the distance between the two raised points is the allowable adjustable range for exhaust plug installation.

[0008] The 30° mark is set at 30° of the 0° line, the -30° mark is set at -30° of the 0° line, and the -60° mark is set at -60° of the 0° line.

[0009] The 30°, -30°, and -60° markings are either dots or lines.

[0010] The dot is a circular column with a diameter of 1.5 mm and a height of 0.4 mm; the 30° mark, -30° mark, and -60° mark are distributed on a circle with a diameter of 19 mm.

[0011] With the 0° line as the reference, the installation angle of the vent plug for an empty battery is -60°. ~ -30°, the vent plug installation angle for the wet-charged battery is 0°. ~ -30°.

[0012] The small cover is heat-sealed to the small cover area by inner / outer heat-melting ribs.

[0013] This invention is primarily used in AGM start-stop deep-cycle lead-acid batteries. It adds a dot indicating the installation angle of the vent plug on the cover and a locking buckle at the tail, facilitating employee confirmation and inspection of the vent plug installation angle. This ensures consistent vent plug installation, reduces quality risks, and improves the risk of battery runaway. It effectively prevents battery bulging, leakage, or even thermal runaway caused by loose or over-installed vent plugs, thus improving battery quality. Attached Figure Description

[0014] Figure 1 A schematic diagram of the front structure of the original cover where the exhaust vent was installed;

[0015] Figure 2 This is a schematic diagram of the front structure of the cover of this utility model;

[0016] Figure 3 This is a schematic diagram of the anti-reverse buckle on the back of the cover of this utility model;

[0017] Figure 4 This is a simplified diagram of the exhaust vent. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1-3In the middle, the six vent positions of the large cover 12 have 18 dots distributed at 30°, -30° and -60°. When the battery is on the vent plug, the installation angle is: with the 0° line as the reference, the qualified installation angle for liquid-free batteries is -60° to -30°, and the qualified installation angle for wet-charged batteries is 0° to 30° to ensure the consistency of the vent plug installation position, improve and enhance the risk of battery runaway.

[0020] On the front of the battery cover, the line connecting two points forms the 0° line. Three angular dots, each 1.5mm in diameter and 0.4mm high, are added at the 30°, -30°, and -60° positions. The intersection of these three angular dots aligns with the center of the vent hole on the cover. These three angular dots are designated 30° (marker 1), -30° (marker 2), and -60° (marker 3). The area between 30° (marker 1) and -30° (marker 2) is the 0° mark. One vent plug (4) corresponds to three angular dots, and six vent plugs (4) correspond to a total of 18 angular dots. The three angular dots corresponding to one vent plug (4) are distributed on a circumference with a diameter of 19mm. On the back of the cover, at the threaded end of the vent hole, there are two protrusions (7 and 8), which are called anti-reverse clips. The distance between these anti-reverse clips is within the adjustable range allowed for vent plug installation. One protrusion has a triangular or fan-shaped cross-section, and the other has a trapezoidal or fan-shaped cross-section. Angle marker dots are designed on the front of the battery cover, and anti-reverse buckles are designed at the threaded end of the vent hole. This makes it easy for employees to confirm and check whether the vent plug is installed correctly. Specifically, the vent plug installation angle is as follows: with the 0° line as the reference, for liquid-free batteries, the reasonable installation angle for the vent plug is -60° to -30°. When the vent plug 4 is installed within this angle, the washer is slightly compressed, making it easy to disassemble without causing wear to the cover. For wet-charged batteries, the reasonable installation angle is 0° to 30°. When the vent plug is installed within this angle, it is within the anti-reverse buckle range, making it less likely to loosen or be over-tightened and damage the cover threads. This greatly reduces the risk of quality control failure and also ensures the consistency of vent plug installation.

[0021] The line connecting two points on the front of the battery cover is the line connecting the concave point 6 on the surface of the six vent plugs and the convex point 5 on the edge of the upper surface of the cover. When the line connecting the two points is parallel to the wide side of the cover, it is called the vent plug installation angle 0° line.

[0022] This invention uses the angle points around the exhaust vent mounting hole and the anti-reverse clip to determine whether the exhaust vent installation position is reasonable and consistent. The specific implementation method is as follows:

[0023] Installation method of the vent plug on an empty battery: Secure the sealed empty battery on the raceway, ensuring no movement occurs; select a portable electric wrench (this electric torque wrench has 1-20 settings), set the electric torque wrench to setting 5, place the drill bit of the electric wrench on top of the vent plug 4, turn on the power, and twist the wrench to turn vent plug 4; visually inspect, taking the vent plug installation angle of 0° on the cover as a reference, the angle dot on the vent plug should be between -60° and -30° on the cover, i.e. Figure 2 If the pressure is between 0° and 3°, the installation is considered acceptable; this allows the exhaust valve gasket 10 to be slightly compressed, making it easy to remove.

[0024] 2. Installation method of vent plug on wet-charged battery: Secure the sealed, liquid-free battery on the raceway, ensuring no movement; select a portable electric wrench (this electric torque wrench has 1-20 settings), set the electric torque wrench to setting 10, place the drill bit of the electric wrench on top of vent plug 4, turn on the power, and twist the wrench to install vent plug 4; at this time, to install vent plug 4 in the designated position (e.g., Figure 4 At the starting point of the vent plug thread, a positioning protrusion "9" is designed. When the vent plug 4 is rotated, and protrusion "9" enters the area between protrusions "7" and "8" on the anti-reverse buckle at the end of the vent port thread on the battery cover, the washer 10 is compressed to the designed compression ratio, and the vent plug is installed in place. Visually, taking the vent plug installation angle on the cover as 0° as a reference, the dot on the vent plug is between 0° and 30° on the cover. Figure 2 The installation is considered qualified if the temperature is between 0° and 1°; this ensures the consistency of the vent plug installation position and improves the risk of battery runaway.

Claims

1. A valve-regulated battery cover with a positioning structure, characterized in that: The large cover has a small cover area on one side, and the small cover area has an exhaust area. The exhaust area includes multiple exhaust plug holes arranged sequentially along the length of the battery. The inner side of the front of the small cover area has an inner heat-melting rib, and the outer side of the front of the small cover area has an outer heat-melting rib. At the end of the thread of the exhaust hole on the back of the large cover, there is a positioning protrusion (9) designed at the starting point of the thread for positioning the exhaust plug (4). At the opening of each exhaust plug hole, there is a set of positioning marks on the front of the small cover area for positioning the exhaust plug installed at each exhaust plug hole. Each set of positioning marks is located between the inner heat-melting rib and the exhaust plug hole. Each set of positioning marks includes a 0° mark, a 30° mark (1), a -30° mark (2), and a -60° mark (3). The exhaust plug (4) is installed at the exhaust plug hole: when the exhaust plug surface positioning point (6) is aligned with the 0° mark, the line connecting the exhaust plug surface positioning point (6) and the 0° mark is the 0° line, and the 0° line is parallel to the wide edge of the cover; when the exhaust plug surface positioning point (6) is aligned with the 30° mark (1), the angle between the line A connecting the exhaust plug surface positioning point (6) and the 30° mark (1) and the 0° line is 30°; when the exhaust plug surface positioning point (6) is aligned with the -30° mark (2), the angle between the line B connecting the exhaust plug surface positioning point (6) and the -30° mark (2) and the 0° line is 30°; when the exhaust plug surface positioning point (6) is aligned with the -60° mark (3), the angle between the line C connecting the exhaust plug surface positioning point (6) and the -60° mark (3) and the 0° line is 60°. The intersection of the extended lines A, B, and C coincides with the center of the vent on the cover.

2. The valve-regulated battery cover with a positioning structure according to claim 1, characterized in that: The inner / outer hot melt ribs include long hot melt ribs and short hot melt ribs.

3. The valve-regulated battery cover with a positioning structure according to claim 1, characterized in that: There are two protruding points on the threaded end of the exhaust port on the back of the cover. The two protruding points form a backstop. The distance between the two protruding points is the adjustable range of the exhaust plug (4).

4. The valve-regulated battery cover with a positioning structure according to claim 1, characterized in that: The 30° mark (1) is set at the 30° position of the 0° line, the -30° mark (2) is set at the -30° position of the 0° line, and the -60° mark (3) is set at the -60° position of the 0° line.

5. The valve-regulated battery cover with a positioning structure according to claim 1, characterized in that: The 30° mark (1), -30° mark (2), and -60° mark (3) are dots or lines.

6. The valve-regulated battery cover with a positioning structure according to claim 5, characterized in that: The dot is a circular column with a diameter of 1.5 mm and a height of 0.4 mm; 30° mark (1), -30° mark (2), and -60° mark (3) are distributed on a circumference with a diameter of 19 mm.

7. The valve-regulated battery cover with a positioning structure according to claim 1, characterized in that: With the 0° line as the reference, the installation angle of the vent plug for an empty battery is -60°. ~ -30°, the vent plug installation angle for the wet-charged battery is 0°. ~ -30°.

8. The valve-regulated battery cover with a positioning structure according to claim 1, characterized in that: The small cover is heat-sealed to the small cover area by inner / outer heat-melting ribs.

Images