Electrolyte level monitoring device for lead-acid storage battery

Abstract

The utility model provides an electrolyte level monitoring device for a lead-acid storage battery, which belongs to the technical field of electrolyte monitoring and comprises a shell, a measuring tube and a cut-off sleeve. A battery assembly is stored in the shell; a through hole is formed in the shell; the bottom end of the through hole is communicated with an inner cavity of the battery assembly; a ventilation opening is formed in the shell and is used for enabling the air pressure in the battery assembly to be the same as that of the outside when electrolyte monitoring is carried out. The measuring tube is detachably connected to the shell, the two ends of the measuring tube are open, and the measuring tube is matched with the through hole in an inserted mode to be used for extracting electrolyte in the battery assembly. The cut-off sleeve is installed at the top end of the measuring tube and used for blocking or opening the top end of the measuring tube. And the top end of the measuring tube is blocked by a cut-off sleeve for taking out the electrolyte from the battery assembly. The electrolyte level monitoring device for the lead-acid storage battery provided by the utility model is simple to operate, low in cost and capable of realizing comprehensive detection on the electrolyte.

Description

Technical Field

[0001] The utility model belongs to the technical field of electrolyte monitoring, and more specifically relates to an electrolyte level monitoring device for a lead-acid battery. Background Art

[0002] Lead-acid battery is a storage battery whose electrodes are mainly made of lead and its oxides, and whose electrolyte is sulfuric acid solution. When the lead-acid battery is in the discharge state, the main component of the positive electrode is lead dioxide, and the main component of the negative electrode is lead. When it is in the charging state, the main components of the positive and negative electrodes are both lead sulfate. The life of ordinary lead-acid batteries is generally about 2 years, and the height of the electrolyte needs to be checked regularly and distilled water needs to be added. In addition, the density and liquid level of the electrolyte need to be checked during each maintenance, because the density of the electrolyte has a great influence on the capacity and service life of the lead-acid battery.

[0003] However, the existing battery structure cannot easily extract the electrolyte, and the battery can only be disassembled as a whole, which is complicated and has many steps and high monitoring costs. Utility Model Content

[0004] The utility model aims to provide a lead-acid battery electrolyte level monitoring device, aiming to solve the problem that the electrolyte cannot be conveniently extracted.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: to provide a lead-acid battery electrolyte level monitoring device, including:

[0006] A shell, wherein the battery assembly is stored in the shell; a through hole is provided on the shell, and the bottom end of the through hole is used to communicate with the inner cavity of the battery assembly; a vent is provided on the shell, and the vent is used to make the air pressure inside the battery assembly the same as that outside when the electrolyte is monitored;

[0007] A measuring tube, detachably connected to the housing, with both ends of the measuring tube being open, and the measuring tube being plugged into and matched with the through hole for extracting electrolyte in the battery assembly;

[0008] A stop sleeve is installed at the top of the measuring tube, and the stop sleeve is used to block or open the top of the measuring tube;

[0009] The top end of the measuring tube is sealed by the stop sleeve and is used to take out the electrolyte from the battery assembly.

[0010] In a possible implementation, the measuring tube is made of a transparent material; and scales are marked along the length direction of the measuring tube.

[0011] In a possible implementation manner, the outer wall of the housing is provided with a slot for clamping the measuring tube.

[0012] In a possible implementation manner, the interior of the cut-off sleeve is coated with a connecting glue, and two opposite inner walls of the cut-off sleeve are used to seal the measuring tube by means of the connecting glue.

[0013] In a possible implementation, two opposite inner walls of the stop sleeve are respectively provided with a strip groove and a protruding strip, and the protruding strip is plugged into and matched with the strip groove to seal the stop sleeve.

[0014] In a possible implementation, the bottom end of the cut-off sleeve is sleeved on the measuring tube, and the top end is open.

[0015] In a possible implementation manner, a level is installed on the housing.

[0016] In a possible implementation manner, a sealing plug is detachably connected to the through hole.

[0017] In a possible implementation, a buckle plate is detachably connected to the housing, and the buckle plate is buckled on the through hole and abuts against the sealing plug.

[0018] In a possible implementation, a filter ring is fixed on the pinch plate, and the filter ring is plugged into and matched with the measuring tube to remove impurities on the surface of the measuring tube.

[0019] The beneficial effect of the lead-acid battery electrolyte level monitoring device provided by the utility model is that: compared with the prior art, the lead-acid battery electrolyte level monitoring device of the utility model has a through hole and a vent on the shell, and the bottom end of the through hole is connected to the inner cavity of the battery assembly, the measuring tube is detachably connected to the shell, and the two ends of the measuring tube are open. The measuring tube is plugged into the through hole, and a cut-off sleeve is installed at the top of the measuring tube.

[0020] In actual application, the vent is opened to insert the measuring tube into the through hole. Since both ends of the measuring tube are open, the electrolyte inside the battery can smoothly enter the measuring tube, and the liquid in the measuring tube has the same liquid level as the electrolyte in the battery. The top of the measuring tube is blocked by the cut-off sleeve. At this time, when the measuring tube is pulled out, the electrolyte in the measuring tube will stay in the measuring tube, which is convenient for subsequent analysis and judgment. The monitoring device provided by the present application is simple to operate, low in cost, and can realize convenient extraction of electrolyte for subsequent detection and monitoring. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the structure of a lead-acid battery electrolyte level monitoring device when extracting electrolyte provided in the first embodiment of the utility model;

[0023] Figure 2 A schematic diagram of the structure of the through hole when blocking the through hole provided in the second embodiment of the utility model;

[0024] Figure 3 A schematic diagram of the connection between the housing and the measuring tube provided in an embodiment of the utility model.

[0025] In the figure: 1. outer casing; 2. level; 3. air vent; 4. stop sleeve; 5. sealing plug; 6. filter ring; 7. buckle plate; 8. sealing gasket; 9. measuring tube. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] Please also read Figures 1 to 3 Now, the lead-acid battery electrolyte level monitoring device provided by the utility model is described. The lead-acid battery electrolyte level monitoring device comprises: a shell 1, a measuring tube 9 and a cut-off sleeve 4. The shell 1 is used to store the battery assembly; a through hole is provided on the shell 1, and the bottom end of the through hole is used to communicate with the inner cavity of the battery assembly; a vent 3 is provided on the shell 1, and the vent 3 is used to make the air pressure inside the battery assembly the same as that outside when the electrolyte is monitored. The measuring tube 9 is detachably connected to the shell 1, and both ends of the measuring tube 9 are open. The measuring tube 9 is plugged into the through hole to extract the electrolyte in the battery assembly. The cut-off sleeve 4 is installed at the top end of the measuring tube 9, and the cut-off sleeve 4 is used to block or open the top end of the measuring tube 9. The top end of the measuring tube 9 is blocked by the cut-off sleeve 4 to remove the electrolyte from the battery assembly.

[0028] The beneficial effect of the lead-acid battery electrolyte level monitoring device provided by the utility model is that: compared with the prior art, the lead-acid battery electrolyte level monitoring device of the utility model has a through hole and a vent 3 on the housing 1, and the bottom end of the through hole is connected to the inner cavity of the battery assembly, and the measuring tube 9 is detachably connected to the housing 1, and the two ends of the measuring tube 9 are open. The measuring tube 9 is plugged into the through hole, and a cut-off sleeve 4 is installed at the top of the measuring tube 9.

[0029] In the actual application process, the vent 3 is opened to insert the measuring tube 9 into the through hole. Since the two ends of the measuring tube 9 are open, the electrolyte inside the battery can smoothly enter the measuring tube 9, and the liquid in the measuring tube 9 is at the same level as the electrolyte in the battery. The top of the measuring tube 9 is blocked by the cut-off sleeve 4. At this time, when the measuring tube 9 is pulled out, the electrolyte in the measuring tube 9 will stay in the measuring tube 9, which is convenient for subsequent analysis and judgment. The monitoring device provided by the present application is simple to operate, low in cost, and can realize the convenient extraction of electrolyte for subsequent detection and monitoring.

[0030] In the production of lead-acid batteries, fixed models are generally generated. If a larger capacity of electricity is to be output, a battery cascade method is generally used. However, this external cascade method of using multiple lead-acid batteries makes the cascade management of multiple batteries more complicated. In addition, since the use of multiple batteries is not uniform, and the conditions for cascading lead-acid batteries are different, the management of the electrolyte therein is not uniform. The electrolyte consumption of each lead-acid battery cannot be effectively managed, which affects the use efficiency of this type of lead-acid battery.

[0031] In some embodiments of the lead-acid battery electrolyte level monitoring device provided in this application, please refer to Figure 1 , the measuring tube 9 is made of transparent material; there are scales marked along the length of the measuring tube 9. It should be pointed out that when there is no need to monitor the electrolyte, the vent 3 is in a blocked state. At this time, a plug can be inserted or connected to the vent 3 to ensure the cleanliness of the inside of the battery. When monitoring is required, the vent 3 is opened, and the measuring tube 9 is inserted into the shell 1 through the through hole and contacts the electrolyte. When the measuring tube 9 stores a sufficient level of electrolyte, the measuring tube 9 can be pulled out of the shell 1 by blocking the stop sleeve 4.

[0032] In order to conveniently observe the liquid level of the electrolyte, firstly, the measuring tube 9 is made of a transparent material. More importantly, the measuring tube 9 is marked with a scale, through which the current liquid level of the electrolyte can be accurately read.

[0033] In some embodiments of the lead-acid battery electrolyte level monitoring device provided in this application, please refer to Figure 3The outer wall of the housing 1 is provided with a slot for clamping the measuring tube 9. In order to facilitate the installation and positioning of the measuring tube 9, a slot is provided on the side wall of the housing 1 or the top of the housing 1. The slot is in the shape of a long strip. The entire measuring tube 9 can be installed and fixed by placing the measuring tube 9 in the slot. It should be pointed out that the inside of the measuring tube 9 needs to be in a clean state. For this reason, after the measuring tube 9 is clamped in the slot, a sealing cover can be fixed above the slot. By setting the sealing cover, the measuring tube 9 is placed in a relatively closed environment. A sealing gasket 8 can be mounted on the through hole, and the sealing gasket 8 is used to block the gap between the sealing plug 5 and the through hole.

[0034] In some embodiments of the lead-acid battery electrolyte level monitoring device provided in the present application, the cut-off sleeve 4 is coated with a connecting glue inside, and the two opposite inner walls of the cut-off sleeve 4 are used to block the measuring tube 9 with the help of the connecting glue. When it is necessary to extract and detect the electrolyte, it is necessary to open the vent 3 and insert the measuring tube 9 into the through hole. At this time, the cut-off sleeve 4 is in an open state, because only in this way can the electrolyte in the battery enter the measuring tube 9. When the measuring tube 9 needs to be extracted, the cut-off sleeve 4 needs to be in a blocked state, that is, to prevent external gas from entering the measuring tube 9 through the cut-off sleeve 4. In order to facilitate operation, a connecting glue with poor fluidity can be applied to the inner wall of the cut-off sleeve 4 in advance. The cut-off sleeve 4 itself can be regarded as a flat structure. After the opposite two side walls of the cut-off sleeve 4 are attached, the opposite two side walls of the cut-off sleeve 4 can be in a closed state by the connecting glue. After the extraction is completed, the cut-off sleeve 4 is pressed to separate the opposite two side walls so that the next detection can be carried out.

[0035] In some embodiments of the lead-acid battery electrolyte level monitoring device provided by the present application, a strip groove and a raised strip are respectively provided on the two opposite inner walls of the cut-off sleeve 4, and the raised strip is plugged and matched with the strip groove for blocking the cut-off sleeve 4. In order to increase the number of times the measuring tube 9 is used and to improve the sealing performance of the cut-off sleeve 4 to a certain extent, a strip groove and a raised strip are respectively provided on the two opposite inner walls of the cut-off sleeve 4, and the lengths of the strip groove and the raised strip are the same. More importantly, when the strip groove and the raised strip are mutually engaged, the cut-off sleeve 4 can be placed in a blocked state, and the engagement and matching of the strip groove and the raised strip are relatively reliable, the sealing performance is relatively strong, and it is not easily affected by the external environment, so it is more practical. The strip groove and the raised strip can be seen in commonly used food packaging.

[0036] In some embodiments of the lead-acid battery electrolyte level monitoring device provided in this application, please refer to Figure 1The bottom end of the cut-off sleeve 4 is sleeved on the measuring tube 9, and the top end is open. Because only with the above design, during the insertion of the measuring tube 9, the measuring tube 9 is always in a state of communication with the external atmosphere through the cut-off sleeve 4, so that the liquid level in the measuring tube 9 can be the same as the liquid level of the electrolyte inside the battery, and the accuracy of the test result can be ensured. Even if the distance between the two opposite walls of the cut-off sleeve 4 is small, there is still a gap, and when the cut-off sleeve 4 is blocked, the air pressure in the measuring tube 9 will not change to a large extent.

[0037] In some embodiments of the lead-acid battery electrolyte level monitoring device provided in this application, please refer to Figure 1 , a level 2 is installed on the housing 1. If the placement plane of the battery is not horizontal, the final measurement result will inevitably have a large deviation. For this reason, the level 2 can be installed on the housing 1. In actual operation, only when the level 2 is in a normal state, the insertion of the measuring tube 9 and related tests can be performed.

[0038] In some embodiments of the lead-acid battery electrolyte level monitoring device provided in this application, please refer to Figure 2 , a sealing plug 5 is detachably connected to the through hole. When the electrolyte does not need to be tested, the vent 3 and the through hole are both in a blocked state, and the battery may be used in an environment with large vibrations. In order to ensure that the position of the sealing plug 5 can remain stable relative to the through hole, the sealing plug 5 can be directly threaded on the through hole. For more important and complex occasions, a sealant can be applied between the sealing plug 5 and the through hole, and the sealant can avoid relative displacement between the sealing plug 5 and the through hole to a certain extent.

[0039] In some embodiments of the lead-acid battery electrolyte level monitoring device provided in this application, please refer to Figure 1 and Figure 2 , a buckle plate 7 is detachably connected to the outer shell 1, and the buckle plate 7 is buckled on the through hole and abuts on the sealing plug 5. The sealing plug 5 is made of a flexible material, so that the through hole can be effectively blocked, but with the changes in the external environment and the influence of external factors, impurities may enter between the sealing plug 5 and the through hole. And if there are impurities around the sealing plug 5, the impurities will be carried from the outside to the inside of the battery when the measuring tube 9 is inserted. For this reason, a buckle plate 7 is detachably connected to the outer shell 1, and the buckle plate 7 can be snapped or hinged to the outer shell 1, and the buckle plate 7 can make the sealing plug 5 in a relatively closed environment. More importantly, by making the buckle plate 7 abut against the sealing plug 5, the sealing plug 5 can be prevented from loosening.

[0040] In some embodiments of the lead-acid battery electrolyte level monitoring device provided in this application, please refer to Figure 1 and Figure 2, a filter ring 6 is fixed on the gusset plate 7, and the filter ring 6 is plugged into the measuring tube 9 to remove impurities on the surface of the measuring tube 9. After the battery has been used for a period of time, there will inevitably be certain impurities on the outer wall of the measuring tube 9. The usual practice is to repeatedly wipe the measuring tube 9 before inserting it into the through hole, but this leads to low operating efficiency. In order to solve the above problem, a connecting hole is first opened on the gusset plate 7, and then a filter ring 6 is clamped in the connecting hole. The filter ring 6 is located above the through hole and is coaxial with the through hole. When the measuring tube 9 is inserted into the through hole, it will first be inserted into the filter ring 6, and the impurities on the surface of the measuring tube 9 can be removed by friction with the filter ring 6, and because the filter ring 6 is coaxial with the through hole, through the constraints at different positions, it is also ensured that the measuring tube 9 can be vertically inserted into the battery.

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lead-acid battery electrolyte level monitoring device, characterized in that: include: A shell, wherein the battery assembly is stored in the shell; a through hole is provided on the shell, and the bottom end of the through hole is used to communicate with the inner cavity of the battery assembly; a vent is provided on the shell, and the vent is used to make the air pressure inside the battery assembly the same as that outside when the electrolyte is monitored; A measuring tube, detachably connected to the housing, with both ends of the measuring tube being open, and the measuring tube being plugged into and matched with the through hole for extracting electrolyte in the battery assembly; A stop sleeve is installed at the top of the measuring tube, and the stop sleeve is used to block or open the top of the measuring tube; The top end of the measuring tube is sealed by the stop sleeve and is used to take out the electrolyte from the battery assembly.

2. The lead-acid battery electrolyte level monitoring device according to claim 1, characterized in that: The measuring tube is made of a transparent material and is marked with scales along the length direction of the measuring tube.

3. The lead-acid battery electrolyte level monitoring device according to claim 1, characterized in that: The outer wall of the shell is provided with a slot for clamping the measuring tube.

4. The lead-acid battery electrolyte level monitoring device according to claim 1, characterized in that: The interior of the cut-off sleeve is coated with a connecting glue, and two opposite inner walls of the cut-off sleeve are used to seal the measuring tube with the help of the connecting glue.

5. The lead-acid battery electrolyte level monitoring device according to claim 1, characterized in that: Two opposite inner walls of the stop sleeve are respectively provided with a strip groove and a protruding strip, and the protruding strip is plugged and matched with the strip groove to seal the stop sleeve.

6. The lead-acid battery electrolyte level monitoring device according to claim 1, characterized in that: The bottom end of the cut-off sleeve is sleeved on the measuring tube, and the top end is open.

7. The lead-acid battery electrolyte level monitoring device according to claim 1, characterized in that: A level is installed on the shell.

8. The lead-acid battery electrolyte level monitoring device according to claim 1, characterized in that: A sealing plug is detachably connected to the through hole.

9. The lead-acid battery electrolyte level monitoring device according to claim 8, characterized in that: A buckle plate is detachably connected to the shell, and the buckle plate is buckled on the through hole and abuts against the sealing plug.

10. The lead-acid battery electrolyte level monitoring device according to claim 9, characterized in that: A filter ring is fixed on the pinch plate, and the filter ring is plugged into and matched with the measuring tube to remove impurities on the surface of the measuring tube.

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