Airtight protective shell for storage battery post

Abstract

The utility model relates to the technical field of manufacturing of storage batteries, in particular to an airtight protective shell for a storage battery post, which comprises a through hole used for detecting voltage, the through hole consists of a first via hole sleeved on an inner cover of the storage battery post and a second via hole positioned on an outer cover of the inner cover, and the first via hole and the second via hole are connected with each other in a sleeving manner. The inner cover is positioned through a first positioning mechanism, and the outer cover is positioned through a second positioning mechanism. By means of the simplified design, needed materials and complexity are reduced, production cost is reduced, the manufacturing process is simplified, the simplified structure means fewer assemblies and connecting points, potential fault points are reduced, the overall reliability is improved, and in addition, the simplified design is convenient to maintain and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of battery manufacturing, and specifically relates to an airtight protection housing for a battery terminal. Background Art

[0002] In the design of traditional valve-regulated lead-acid batteries, most of the terminals (also known as lead-out terminals) are exposed to the external environment after connection. This exposure makes the terminals prone to contact with the outside air, so that during use, if they encounter acidic substances, moisture or air, the terminals are prone to corrosion or oxidation, which will seriously affect the performance and service life of the battery.

[0003] Chinese Patent (CN101093881A) discloses a protection structure for battery terminals. Specifically, through the carefully designed non-metal layer coating, the boss on the connecting bar, the peripheral terminal guard ring and their close cooperation, a sealing structure is formed, effectively sealing the battery terminals completely, thereby preventing the erosion of external acid, water and air. At the same time, the small holes provided in the non-metal layer facilitate voltage detection, ensuring the convenience of maintenance and detection, and enhancing the durability and reliability of the battery.

[0004] However, this structure has the problem of overly complex overall structure, and due to the complex structure, it also leads to the consequence of being difficult to replace and repair. Summary of the Utility Model

[0005] In view of the above problems, an airtight protection housing for a battery terminal is provided, including a through hole for voltage detection, and the through hole is composed of a first through hole sleeved on an inner cover of the battery terminal and a second through hole on an outer cover located on the inner cover. The inner cover is positioned by a first positioning mechanism, and the outer cover is positioned by a second positioning mechanism.

[0006] Preferably, the first positioning mechanism is composed of a first positioning pin on the plane where the terminal is located and a first slot on the contact surface of the inner cover.

[0007] Preferably, the second positioning mechanism includes a limiting ring provided on the plane where the terminal is located. A limiting circular groove is opened in the limiting ring, and a sliding plate that rotates in the limiting circular groove is provided on the outer cover.

[0008] Preferably, a second slot is provided on the sliding plate, and a second positioning pin and a third positioning pin adapted to the second slot are provided in the limiting ring.

[0009] Preferably, the second positioning pin and the third positioning pin are respectively located in a first adaptation bayonet and a second adaptation bayonet in the limiting ring.

[0010] Preferably, the second adaptor bayonet runs through the entire limiting ring, and the sliding plate enters the limiting circular groove through the second adaptor bayonet. A retaining cover for preventing the sliding plate placed in the limiting circular groove from detaching is provided on the limiting ring.

[0011] The beneficial effects of the present utility model compared with the prior art are as follows:

[0012] 1. The battery pole protection shell of the present utility model reduces the required materials and complexity through a simplified design. This not only reduces the production cost but also simplifies the manufacturing process. The simplified structure means fewer components and connection points, which reduces potential failure points and improves the overall reliability. In addition, the simplified design also facilitates maintenance and replacement because users can more easily disassemble and reassemble the shell without complex tools or professional knowledge. This simplified design also helps to reduce energy consumption and waste generation during the production process, meeting the current pursuit of environmental protection and sustainable development.

[0013] 2. The through-hole design of the present utility model cleverly combines the dual functions of airtight protection and voltage detection. When voltage detection is not required, the through-hole is in a closed state, ensuring complete isolation of the pole from the external environment, thereby protecting the pole from erosion by moisture, dust, and other contaminants and extending the service life of the battery. When voltage detection is required, by operating the second positioning mechanism, the second through-hole on the outer cover can be made to coincide with the first through-hole on the inner cover to form an open state, facilitating the probe of the voltage detection device to contact the battery pole. This design not only ensures the airtightness of the pole but also provides convenience for voltage detection, meeting the user's needs for battery maintenance and monitoring.

[0014] 3. Through the design of the first positioning mechanism and the second positioning mechanism, the protection shell of the present utility model achieves precise positioning of the inner cover and the outer cover, enhancing the stability of the overall structure. The first positioning mechanism uses the matching relationship between the positioning pin and the slot to ensure the precise positioning and stable connection of the inner cover on the pole. The second positioning mechanism realizes the precise positioning and adjustment of the outer cover through the rotation of the sliding plate in the limiting circular groove to control the opening and closing state of the through-hole. In addition, the interaction between the second slot and the second positioning pin and the third positioning pin, as well as the setting of the retaining cover, further improves the stability of the sliding plate and ensures the accurate control of the through-hole state. This precise positioning mechanism not only ensures airtightness but also avoids displacement or misalignment of the inner cover and the outer cover during use, thereby improving the durability and reliability of the protection shell. Description of the Drawings

[0015] Figure 1 is an overall three-dimensional view of an airtight protection shell for a battery pole.

[0016] Figure 2It is an exploded view of each part of an airtight protection housing for a battery terminal post.

[0017] Figure 3 It is a perspective view when the inner cover of an airtight protection housing for a battery terminal post is installed.

[0018] Figure 4 It is a top view of the inner cover of an airtight protection housing for a battery terminal post.

[0019] Figure 5 It is a perspective view of the outer cover of an airtight protection housing for a battery terminal post entering the limiting circular groove.

[0020] Figure 6 It is a front view of the whole device of an airtight protection housing for a battery terminal post.

[0021] Figure 7 It is an airtight protection housing for a battery terminal post Figure 6 A - A sectional view.

[0022] Figure 8 It is a top view of the outer cover of an airtight protection housing for a battery terminal post.

[0023] In the figure, the reference numerals are: 1, inner cover; 2, outer cover; 21, sliding plate; 3, first positioning mechanism; 31, first positioning pin; 32, first slot; 4, second positioning mechanism; 41, limiting ring; 42, limiting circular groove; 43, second positioning pin; 44, third positioning pin; 45, second slot; 46, first adapter bayonet; 47, second adapter bayonet; 5, through hole; 51, first through hole; 52, second through hole; 6, anti - detachment cover. Specific embodiments

[0024] To further understand the features, technical means, and the specific purposes and functions achieved by the present utility model, the following further describes the present utility model in detail in conjunction with the drawings and specific embodiments.

[0025] Refer to Figures 1-8 : An airtight protection housing for a battery terminal post, including a through hole 5 for detecting voltage. The through hole 5 is composed of a first through hole 51 sleeved on the inner cover 1 of the battery terminal post and a second through hole 52 located on the outer cover 2 on the inner cover 1. The inner cover 1 is positioned by a first positioning mechanism 3, and the outer cover 2 is positioned by a second positioning mechanism 4.

[0026] First, compared with the complex-structured and material-intensive battery terminal protection method in the comparative document, the present utility model simplifies the design, significantly reducing the required materials and complexity, thereby improving the convenience of maintenance and replacement. The main objective of the present utility model is to ensure the airtightness of the battery terminal while providing convenience for voltage detection. To achieve this goal, a special through-hole 5 structure is designed on the outer shell. This through-hole 5 structure consists of a first through-hole 51 on the inner cover 1 and a second through-hole 52 on the outer cover 2. Under normal circumstances, when the first through-hole 51 and the second through-hole 52 do not coincide, the through-hole 5 is in a closed state, forming a sealed space that completely isolates the terminal from the external space, thus achieving the purpose of protecting the terminal. When it is necessary to detect the voltage of the battery, by operating the second positioning mechanism 4, the second through-hole 52 on the outer cover 2 can be made to coincide with the first through-hole 51 on the inner cover 1. At this time, the through-hole 5 is in an open state, and the probe of a voltage detection device, such as the probe of a voltmeter or a voltage sensor, can contact the battery terminal through this open through-hole 5, thereby monitoring the voltage state of the battery in real time or regularly. After the inner cover 1 is positioned by the first positioning mechanism 3, its position cannot be moved, so the position of the first through-hole 51 is also determined accordingly. The outer cover 2 can be operated by the second positioning mechanism 4 to realize the opening and closing switching of the through-hole 5. This design not only ensures the requirement of airtightness but also provides convenience for voltage detection. In summary, through its unique through-hole 5 design and positioning mechanism, the battery terminal protection outer shell realizes the function of providing convenient and fast voltage detection while ensuring airtightness protection, and has a simplified structure, making maintenance and replacement more convenient.

[0027] Referring to Figures 2-4 : The first positioning mechanism 3 consists of a first positioning pin 31 on the plane where the terminal is located and a first slot 32 on the contact surface between the inner cover 1 and the terminal.

[0028] When it is necessary to accurately fix the inner cover 1 on the battery terminal, the first positioning pins 31 play a key role. These positioning pins are usually located at specific positions of the terminal and are designed to match the first slots 32 on the inner cover 1. During the assembly process, the user or installer ensures that the contact surface of the inner cover 1 is closely attached to the plane where the terminal is located, and at the same time ensures that the first positioning pins 31 can be smoothly inserted into the corresponding first slots 32. Once the first positioning pins 31 are completely inserted into the first slots 32, the inner cover 1 is accurately positioned on the terminal, forming a stable and reliable connection. This connection method not only ensures the airtightness between the inner cover 1 and the terminal but also prevents the inner cover 1 from shifting or misaligning during use. Therefore, the working principle of the first positioning mechanism 3 mainly realizes the precise positioning and stable connection of the inner cover 1 on the terminal by utilizing the matching relationship between the positioning pins and the slots, thereby ensuring the stability and airtightness of the entire battery terminal protection outer shell.

[0029] Reference Figures 2-8 : The second positioning mechanism 4 includes a limiting ring 41 disposed on the plane where the pole post is located. A limiting circular groove 42 is formed in the limiting ring 41, and a sliding plate 21 that rotates in the limiting circular groove 42 is provided on the outer cover 2.

[0030] First, the limiting ring 41 is designed and fixed on the plane where the battery pole post is located, providing a fixed rotation reference for the outer cover 2. A limiting circular groove 42 is formed inside the limiting ring 41. The diameter and shape of this circular groove match those of the sliding plate 21 on the outer cover 2. The sliding plate 21 on the outer cover 2 is designed to be precisely inserted into the limiting circular groove 42 of the limiting ring 41 and can rotate freely within the circular groove. The rotation of the sliding plate 21 is restricted within the range of the limiting circular groove 42, ensuring the stability and accuracy of the rotation. When it is necessary to adjust the opening and closing state of the through hole 5, the user can operate the outer cover 2, such as rotating the outer cover 2, to make the sliding plate 21 rotate within the limiting circular groove 42. This rotation will drive the second through hole 52 on the outer cover 2 to move relative to the first through hole 51 on the inner cover 1, thereby controlling the opening and closing of the through hole 5. Specifically, when the sliding plate 21 rotates to a position where the second through hole 52 coincides with the first through hole 51, the through hole 5 is in an open state, and the probe of the voltage detection device can contact the battery pole post through the through hole 5. When the sliding plate 21 rotates to other positions, the second through hole 52 does not coincide with the first through hole 51, and the through hole 5 is in a closed state, isolating the pole post from the external space to achieve the purpose of protection. Therefore, the working principle of the second positioning mechanism 4 is to achieve the positioning and adjustment of the outer cover 2 through the rotation of the sliding plate 21 within the limiting circular groove 42, and further control the opening and closing state of the through hole 5 to meet the requirements of airtight protection and voltage detection.

[0031] Reference Figures 2-8 : A second slot 45 is provided on the sliding plate 21, and a second positioning pin 43 and a third positioning pin 44 adapted to the second slot 45 are provided in the limiting ring 41.

[0032] First, the sliding plate 21 is designed to be rotatable within the limiting circular groove 42 of the limiting ring 41 to adjust the opening and closing state of the through hole 5. To ensure that the sliding plate 21 can be stably fixed at a specific position, a second slot 45 is provided on the sliding plate 21. At the same time, within the limiting ring 41, at positions corresponding to the second slot 45, there are a second positioning pin 43 and a third positioning pin 44. The sizes and shapes of these two positioning pins match those of the second slot 45 and can be precisely inserted into the slot. When the sliding plate 21 rotates to a position where it needs to be fixed, the second slot 45 will align with the second positioning pin 43 or the third positioning pin 44. At this time, the user can, through an operation such as pushing or rotating the sliding plate 21, insert the positioning pin into the slot. Once the positioning pin is completely inserted into the slot, the sliding plate 21 is fixed at the current position and cannot rotate freely. In this way, the interaction between the second slot 45 and the second positioning pin 43 and the third positioning pin 44 realizes the precise positioning and fixing of the sliding plate 21, which not only ensures the stability of the sliding plate 21 at a specific position but also ensures that the opening and closing state of the through hole 5 can be accurately controlled.

[0033] Refer to Figures 2-3 : The second positioning pin 43 and the third positioning pin 44 are respectively located within the first fitting bayonet 46 and the second fitting bayonet 47 in the limiting ring 41.

[0034] When the sliding plate 21 rotates within the limiting circular groove 42, it will not be obstructed by the second positioning pin 43 and the third positioning pin 44. The limiting circular groove 42 is provided with a first fitting bayonet 46 and a second fitting bayonet 47 near the plane where the pole column is arranged. The bayonets are two grooves sunken from the limiting circular groove 42 towards the plane where the pole column is arranged, and the second positioning pin 43 and the third positioning pin 44 are arranged therein. When rotating the outer cover 2 to drive the sliding plate 21 to be located at the first fitting bayonet 46 or the second fitting bayonet 47, press the outer cover 2. At this time, the second slot 45 on the sliding block is inserted and connected with the second positioning pin 43 or the third positioning pin 44 to achieve the purpose of locking.

[0035] Refer to Figure 2 : The second fitting bayonet 47 runs through the entire limiting ring 41. The sliding plate 21 enters the limiting circular groove 42 through the second fitting bayonet 47, and a retaining cover 6 is provided on the limiting ring 41 to prevent the sliding plate 21 placed within the limiting circular groove 42 from detaching.

[0036] When the inner cover 1 is covered on the pole column through the first positioning mechanism 3, the sliding plate 21 of the outer cover 2 enters the limiting circular groove 42 through the second fitting bayonet 47 provided through the limiting ring 41. At the same time, the outer cover 2 will cover the inner cover 1. After entering the limiting circular groove 42, to prevent the sliding plate 21 from detaching from the limiting circular groove 42, a retaining cover 6 is provided. The retaining cover 6 can be threadedly connected or hinged to the limiting ring 41. Through the setting of the retaining cover 6, the outer cover 2 can be effectively prevented from detaching from the limiting circular groove 42.

[0037] The above embodiments merely represent one or several implementation manners of the present utility model. The description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the appended claims.

Claims

1. An airtight protective housing for a battery pole, comprising a through hole (5) for detecting voltage, characterized in that: The through hole (5) is composed of a first through hole (51) sleeved on an inner cover (1) of a battery pole and a second through hole (52) on an outer cover (2) located on the inner cover (1); the inner cover (1) is positioned by a first positioning mechanism (3) and the outer cover (2) is positioned by a second positioning mechanism (4).

2. The airtight protective casing for a battery pole according to claim 1, characterized in that: The first positioning mechanism (3) is composed of a first positioning pin (31) on the plane where the pole is located and a first slot (32) between the inner cover (1) and the contact surface.

3. The airtight protective casing for a battery pole according to claim 1, characterized in that: The second positioning mechanism (4) comprises a limiting ring (41) arranged on the plane where the pole is located, a limiting circular groove (42) is provided in the limiting ring (41), and a sliding plate (21) rotating in the limiting circular groove (42) is provided on the outer cover (2).

4. The airtight protective casing for a battery pole according to claim 3, characterized in that: The sliding plate (21) is provided with a second slot (45), and the limiting ring (41) is provided with a second positioning pin (43) and a third positioning pin (44) adapted to the second slot (45).

5. The airtight protective casing for a battery pole according to claim 4, characterized in that: The second positioning pin (43) and the third positioning pin (44) are respectively located in a first adapter bayonet (46) and a second adapter bayonet (47) in the limiting ring (41).

6. The airtight protective casing for a battery pole according to claim 5, characterized in that: The second adapter bayonet (47) passes through the entire limiting ring (41), and the sliding plate (21) enters the limiting circular groove (42) through the second adapter bayonet (47). The limiting ring (41) is provided with an anti-detachment cover (6) for preventing the sliding plate (21) placed in the limiting circular groove (42) from detaching.

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