A battery pole anticorrosion sealing protective sleeve

Abstract

The utility model discloses a kind of battery pole anti-corrosion sealing protective sleeve, including battery body, the pole of being set on the upper wall of battery body, wire and the connector of being set at wire one end. The utility model, by hinge type upper cover and the fixing structure of clamp, can directly open and close protective sleeve without disassembling wire connector, both avoid the operation risk of electrode line when traditional protective sleeve replacement needs to be disassembled, and also solve the technical problem that open type protective cover needs to violently prop open wire when installing, adopt elastic compression structure and layered sealing design, by cover body joint surface sealing strip and the compression sealing pad of wire channel barrier outside corrosive medium invasion, solve the pole electrochemical corrosion problem caused by traditional protective sleeve due to sealing failure.

Description

Technical Field

[0001] This utility model relates to the field of battery terminal protection technology, and in particular to a corrosion-resistant sealing protective sleeve for battery terminals. Background Technology

[0002] Lead-acid batteries typically have two terminals: the positive and negative terminals. One end of the terminal connects directly to the busbar, while the other end connects to one terminal of the adjacent individual cell in the battery pack, serving both connection and conductivity purposes. Both positive and negative terminals are made of metal. In DC systems, lead-acid battery packs generally operate in a float-charge state. To prevent electric shock and short circuits between the positive and negative terminals, the two terminals must be insulated.

[0003] When the insulating protective sleeve of a lead-acid battery terminal is damaged and needs replacement, the positive and negative terminals of the battery must be disconnected before replacement can be performed. This is inconvenient, poses a risk of short circuit between the positive and negative terminals, and is difficult to maintain. Furthermore, the pipe-shaped protective sleeve is subject to uneven stress due to the influence of the battery connection wires. Because there is no fixed fixing method, after a period of operation, the front insulating part of the protective sleeve may warp, exposing the metal parts of the positive and negative terminals to the air, posing a certain safety hazard. To address this, a publicly available technology proposes an insulating protective sleeve for lead-acid battery terminals, including a hollow cylindrical protective cover with through holes at both the top and bottom. A cap is located at the upper through hole of the protective cover, which snaps onto the upper through hole. A guide sleeve is also provided on one side of the protective cover, communicating with the interior of the protective cover. This provides a fixing function, eliminating the need for internal wiring of the protective cover, facilitating disassembly and installation, reducing the safety risk of short circuit between the positive and negative terminals during maintenance work when replacing the insulating sleeve, and providing effective and stable protection for the positive and negative terminals of the lead-acid battery.

[0004] However, although the protective cover mentioned in the above-disclosed technology simplifies disassembly and assembly through the guide sleeve, its open bottom design requires force to open for installation and cannot prevent the intrusion of corrosive media. Therefore, it is necessary to further improve its structure. Utility Model Content

[0005] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a corrosion-resistant sealing protective sleeve for battery terminals.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a corrosion-resistant sealing protective sleeve for battery terminals, comprising a battery body, terminals disposed on the upper wall of the battery body, wires, and a connector disposed at one end of the wires. The wires are connected to the terminals via the connector. A base is fixedly connected to the upper wall of the battery body and located around the terminals. A lower cover is snapped onto the upper wall of the base. An upper cover is rotatably connected to the upper wall of the lower cover via a hinge. The opening and closing angle of the hinge is ≥90°. A first elastic structure is provided between the base and the lower cover. The upper inner wall of the top cover is provided with a second elastic structure to prevent the connector at the end of the wire from detaching from the pole. The front walls of the bottom cover and the top cover are both fixedly connected with semi-circular shells. The two sets of semi-circular shells are fixedly connected by clamps. The two sets of semi-circular shells together form a circular tube. The outer wall of the circular tube is provided with an annular groove. The clamps are sleeved on the inner wall of the annular groove. The joint surfaces of the top cover and the bottom cover, as well as the joint surfaces of the two sets of semi-circular shells, are provided with a first sealing structure. The wire passes through the internal cavity of the circular tube. A second sealing structure is provided between the outer wall of the wire and the inner wall of the circular tube.

[0007] As a further description of the above technical solution:

[0008] The upper wall of the base is provided with a ring, and a limit ring is provided on the outer wall of the ring near the upper end. The inner side wall of the lower cover is provided with multiple sets of buckles that are adapted to the limit ring.

[0009] As a further description of the above technical solution:

[0010] The first elastic structure is a first elastic pad, which is disposed between the base and the lower cover.

[0011] The base's ring and limiting ring are integrally injection molded. When the buckle engages with the limiting ring, the first elastic pad is compressed, resulting in a deformation of 3-5mm. This structure ensures both the sealing between the base and the battery body and counteracts displacement caused by thermal expansion and contraction through elastic pre-tightening force.

[0012] As a further description of the above technical solution:

[0013] The second elastic structure is a second elastic pad, which is fixedly connected to the inner upper wall of the upper cover, and the projected area of ​​the second elastic pad covers the pole connection area.

[0014] After the upper cover 6 and the lower cover 4 are fastened together, the second elastic pad 12 presses the connector, which can effectively prevent the connector from separating from the pole and improve the connection reliability.

[0015] As a further description of the above technical solution:

[0016] The first sealing structure includes two sets of sealing strips. Grooves are provided between the opposite sides of the upper cover and the lower cover, as well as between the opposite sides of the two sets of semicircular shells. The groove on the upper wall of the lower cover communicates with the groove of the lower set of semicircular shells. The groove on the lower wall of the upper cover communicates with the groove of the upper set of semicircular shells. The two sets of sealing strips are respectively provided on the inner sidewall of one set of grooves. The joint surfaces of the upper cover and the lower cover, as well as the joint surfaces of the two sets of semicircular shells, are sealed by the two sets of sealing strips.

[0017] The annular groove of the semi-circular shell has a depth of 1 / 2 the wall thickness, and the clamp is made of 316 stainless steel strip with M5 fastening bolts. When the clamp is tightened, the sealing strip forms a compression of 0.8-1.2mm at the mating surface, and the above structure achieves an IP54 protection rating.

[0018] As a further description of the above technical solution:

[0019] The second sealing structure includes two sets of sealing gaskets, which are respectively disposed on opposite sides of the two sets of semi-circular shells. The inner sidewalls of the two sets of sealing gaskets abut against the outer wall of the wire, and the semi-circular shells and the wire are sealed by the sealing gaskets.

[0020] After the two sets of semi-circular shells are closed, the sealing gasket maintains full circumferential contact with the inner wall of the semi-circular shell and the outer wall of the wire. The above structure maintains the continuity of the sealing interface when the wire is in motion.

[0021] As a further description of the above technical solution:

[0022] The base is fixedly connected to the battery body with glue.

[0023] The base is bonded to the upper wall of the battery body with acid-resistant adhesive;

[0024] This utility model has the following beneficial effects:

[0025] 1. Compared with existing technologies, this battery terminal anti-corrosion sealing protective cover, through a hinged top cover and clamp fixing structure, can be opened and closed directly without disassembling the wire connector. This avoids the operational risks of disassembling the electrode wires when replacing traditional protective covers, and also solves the technical problem of having to forcefully pry open the wires when installing open-type protective covers.

[0026] 2. Compared with existing technologies, this battery terminal anti-corrosion sealing protective sleeve adopts an elastic compression structure and a layered sealing design. It prevents the intrusion of external corrosive media through the sealing strip on the cover joint surface and the compression sealing gasket of the wire channel, thus solving the problem of electrochemical corrosion of the terminal caused by the failure of the seal in traditional protective sleeves. Attached Figure Description

[0027] Figure 1This is a schematic diagram of the overall structure of a battery terminal anti-corrosion sealing protective sleeve proposed in this utility model;

[0028] Figure 2 This utility model proposes an anti-corrosion sealing protective sleeve for battery terminals. Figure 1 A magnified view of a section at point A in the middle;

[0029] Figure 3 This utility model provides a partial sectional view of the base, lower cover, upper cover, and semi-circular shell of a battery terminal anti-corrosion sealing protective sleeve.

[0030] Figure 4 This utility model proposes an anti-corrosion sealing protective sleeve for battery terminals. Figure 3 A magnified view of a section at point B.

[0031] Legend:

[0032] 1. Battery body; 2. Wire; 3. Base; 301. Ring; 302. Limiting ring; 4. Lower cover; 401. Buckle; 5. First elastic pad; 6. Upper cover; 7. Semi-circular shell; 701. Ring groove; 8. Sealing strip; 9. Sealing gasket; 10. Clamp; 11. Hinge; 12. Second elastic pad. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Reference Figures 1 to 4 The present invention provides a battery terminal anti-corrosion sealing protective sleeve: including a battery body 1, a terminal set on the upper wall of the battery body 1, a wire 2, and a connector set at one end of the wire 2, the wire 2 being connected to the terminal through the connector;

[0035] To achieve leak-proof fixation between the base 3 and the battery body 1, the base 3 is fixedly connected to the upper wall of the battery body 1 and located around the pole post. The base 3 and the battery body 1 are fixedly connected by glue. The lower cover 4 is snapped onto the upper wall of the base 3. The upper wall of the lower cover 4 is rotatably connected to the upper cover 6 through the hinge 11. The opening and closing angle of the hinge 11 is ≥90°. The upper wall of the base 3 is provided with a ring 301. The outer wall of the ring 301 and near the upper end are provided with a limit ring 302. The inner side wall of the lower cover 4 is provided with multiple sets of buckles 401 that are adapted to the limit ring 302. A first elastic structure is provided between the base 3 and the lower cover 4. The first elastic structure is a first elastic pad 5. The first elastic pad 5 is provided between the base 3 and the lower cover 4.

[0036] The base 3 is bonded to the upper wall of the battery body 1 with acid-resistant adhesive, and its ring 301 and limiting ring 302 are integrally injection molded. When the buckle 401 and the limiting ring 302 are engaged, the first elastic pad 5 is compressed and produces a deformation of 3-5mm. The above structure ensures the sealing between the base 3 and the battery body 1, and also offsets the displacement caused by thermal expansion and contraction through the elastic pre-tightening force.

[0037] In order to prevent the connector at the end of the wire 2 from separating from the pole, a second elastic structure is provided on the upper inner wall of the cover 6 to prevent the connector at the end of the wire 2 from detaching from the pole. The second elastic structure is a second elastic pad 12, which is fixedly connected to the upper inner wall of the cover 6. The projected area of ​​the second elastic pad 12 covers the pole connection area.

[0038] After the upper cover 6 and the lower cover 4 are fastened together, the second elastic pad 12 presses the connector, which can effectively prevent the connector from separating from the pole and improve the connection reliability.

[0039] To address the leakage risk of the split structure, semi-circular shells 7 are fixedly connected to the front walls of both the lower cover 4 and the upper cover 6. The two sets of semi-circular shells 7 are fixedly connected by clamps 10, and together they form a circular tube. The outer wall of the circular tube is provided with an annular groove 701, and the clamps 10 are fitted on the inner side wall of the annular groove 701. The mating surfaces of the upper cover 6 and the lower cover 4, as well as the mating surfaces of the two sets of semi-circular shells 7, are provided with a first sealing structure. The first sealing structure includes two sets of sealing strips 8. Grooves are provided between the opposite sides of the upper cover 6 and the lower cover 4, as well as between the opposite sides of the two sets of semi-circular shells 7. The groove on the upper wall of the lower cover 4 communicates with the groove of the lower set of semi-circular shells 7, and the groove on the lower wall of the upper cover 6 communicates with the groove of the upper set of semi-circular shells 7. The two sets of sealing strips 8 are respectively provided on the inner side wall of one set of grooves. The mating surfaces of the upper cover 6 and the lower cover 4, as well as the mating surfaces of the two sets of semi-circular shells 7, are sealed by the two sets of sealing strips 8.

[0040] The depth of the annular groove 701 of the semi-circular shell 7 is 1 / 2 of the wall thickness, and the clamp 10 is made of 316 stainless steel with M5 fastening bolts. When the clamp 10 is tightened, the sealing strip 8 forms a compression of 0.8-1.2mm at the mating surface, and the above structure achieves the IP54 protection rating.

[0041] To achieve a seal at the connection of the wire 2, the wire 2 passes through the internal cavity of the circular tube. A second sealing structure is provided between the outer wall of the wire 2 and the inner wall of the circular tube. The second sealing structure includes two sets of sealing gaskets 9. The two sets of sealing gaskets 9 are respectively located on opposite sides of the two sets of semi-circular shells 7. The inner walls of the two sets of sealing gaskets 9 abut against the outer wall of the wire 2. The semi-circular shells 7 and the wire 2 are sealed through the sealing gaskets 9.

[0042] After the two sets of semi-circular shells 7 are closed, the sealing gasket 9 maintains full circumferential contact with the inner wall of the semi-circular shell 7 and the outer wall of the wire 2. The above structure maintains the continuity of the sealing interface when the wire is in motion.

[0043] Working principle: The base 3 is bonded to the upper wall of the battery body 1 with acid-resistant adhesive, and its ring 301 and limiting ring 302 are integrally injection molded. When the buckle 401 and the limiting ring 302 are engaged, the first elastic pad 5 is compressed and deformed by 3-5mm. The above structure ensures the sealing between the base 3 and the battery body 1, and also offsets the displacement caused by thermal expansion and contraction through elastic pre-tightening force. After the upper cover 6 and the lower cover 4 are fastened, the second elastic pad 12 squeezes the connector, which can effectively prevent the connector from separating from the terminal and improve the connection reliability. The depth of the annular groove 701 of the semi-circular shell 7 is 1 / 2 of the wall thickness, and the clamp 10 is made of 316 stainless steel with M5 fastening bolts. When the clamp 10 is tightened, the sealing strip 8 forms a compression of 0.8-1.2mm at the joint surface, and the IP54 protection level is achieved through the above structure; after the two sets of semi-circular shells 7 are closed, the sealing gasket 9 maintains full circumferential contact with the inner wall of the semi-circular shell 7 and the outer wall of the wire 2, and the sealing interface is maintained continuously in the moving state of the wire through the above structure.

[0044] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A corrosion-resistant sealing protective sleeve for battery terminals, characterized in that: The battery includes a battery body (1), a terminal post disposed on the upper wall of the battery body (1), a wire (2), and a connector disposed at one end of the wire (2). The wire (2) is connected to the terminal post through the connector. A base (3) is fixedly connected to the upper wall of the battery body (1) and located around the terminal post. A lower cover (4) is snapped onto the upper wall of the base (3). An upper cover (6) is rotatably connected to the upper wall of the lower cover (4) through a hinge (11). The opening and closing angle of the hinge (11) is ≥90°. A first elastic structure is provided between the base (3) and the lower cover (4). The upper inner wall of the upper cover (6) is provided with a mechanism to prevent the end of the wire (2) from being connected. The connector is a second elastic structure that detaches from the pole post. The front walls of the lower cover (4) and the upper cover (6) are fixedly connected with semi-circular shells (7). The two sets of semi-circular shells (7) are fixedly connected by clamps (10). The two sets of semi-circular shells (7) together form a circular tube. The outer wall of the circular tube is provided with an annular groove (701). The clamps (10) are sleeved on the inner side wall of the annular groove (701). The joint surface of the upper cover (6) and the lower cover (4) and the joint surface of the two sets of semi-circular shells (7) are provided with a first sealing structure. The wire (2) passes through the internal cavity of the circular tube. The outer wall of the wire (2) and the inner side wall of the circular tube are provided with a second sealing structure.

2. The anti-corrosion sealing protective sleeve for battery terminals according to claim 1, characterized in that: The upper wall of the base (3) is provided with a ring (301), and a limit ring (302) is provided on the outer wall of the ring (301) near the upper end. The inner wall of the lower cover (4) is provided with multiple sets of buckles (401) for matching the limit ring (302).

3. The anti-corrosion sealing protective sleeve for battery terminals according to claim 2, characterized in that: The first elastic structure is a first elastic pad (5), which is disposed between the base (3) and the lower cover (4).

4. The anti-corrosion sealing protective sleeve for battery terminals according to claim 3, characterized in that: The second elastic structure is a second elastic pad (12), which is fixedly connected to the inner upper wall of the upper cover (6). The projected area of ​​the second elastic pad (12) covers the pole connection area.

5. The anti-corrosion sealing protective sleeve for battery terminals according to claim 4, characterized in that: The first sealing structure includes two sets of sealing strips (8). Grooves are provided between the opposite sides of the upper cover (6) and the lower cover (4) and between the opposite sides of the two sets of semi-circular shells (7). The groove on the upper wall of the lower cover (4) is connected to the groove of the lower set of semi-circular shells (7) of the two sets of semi-circular shells (7). The groove on the lower wall of the upper cover (6) is connected to the groove of the upper set of semi-circular shells (7) of the two sets of semi-circular shells (7). The two sets of sealing strips (8) are respectively provided on the inner sidewall of a set of grooves. The joint surface of the upper cover (6) and the lower cover (4) and the joint surface of the two sets of semi-circular shells (7) are sealed by the two sets of sealing strips (8).

6. The anti-corrosion sealing protective sleeve for battery terminals according to claim 5, characterized in that: The second sealing structure includes two sets of sealing gaskets (9). The two sets of sealing gaskets (9) are respectively disposed on opposite sides of the two sets of semi-circular shells (7). The inner sidewalls of the two sets of sealing gaskets (9) abut against the outer wall of the wire (2). The semi-circular shell (7) and the wire (2) are sealed through the sealing gaskets (9).

7. The anti-corrosion sealing protective sleeve for battery terminals according to claim 6, characterized in that: The base (3) and the battery body (1) are fixedly connected by glue.

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