A pole protection sleeve for a battery pack and a mounting structure thereof

Abstract

The utility model relates to a kind of pole protection sleeve and its installation structure suitable for battery pack, pole protection sleeve includes top plate and the side plate connected with top plate edge, side plate is perpendicular to top plate, side plate is enclosed a circle and forms the non-closed structure with copper bar socket reserved, the top surface of top plate forms the bulge part that is projected upward, bulge part is hollow, the inner chamber of bulge part is communicated with the inner chamber enclosed by side plate, folding part is equipped on side plate, folding part is connected with side plate by interval setting connecting point, form openwork between adjacent connecting point, the inner wall of side plate on the both sides of copper bar socket is equipped with the convex rib that is projected from side plate inner wall.The utility model's pole protection sleeve is installed in the pole of single battery of battery pack, the pole between battery is connected by copper bar, copper bar is stretched out from the copper bar socket of pole protection sleeve, monitoring controller is equipped on each battery, monitoring controller is connected with pole by monitoring line, and the folding part on pole protection sleeve is broken and forms monitoring line entrance and exit.

Description

Technical Field

[0001] This utility model relates to the field of battery technology, specifically to a terminal protection sleeve for battery packs and its installation structure. Background Technology

[0002] Battery terminals are exposed, and the exposed areas lack insulation after connection to cables, posing a safety hazard. Therefore, existing technologies commonly use protective sleeves to cover the terminals. However, these protective sleeves are primarily designed for individual battery terminals. Except for the bottom opening, the side walls and top are completely enclosed. This type of sleeve is unsuitable for battery banks. Multiple batteries are connected by copper busbars to form a battery bank, which typically has monitoring lines for monitoring battery status. Traditional protective sleeves completely enclose the terminals without providing entry / exit points for the copper busbars or monitoring lines. Therefore, existing protective sleeves cannot achieve adequate insulation protection. Utility Model Content

[0003] This utility model first discloses a terminal protection sleeve suitable for battery packs, including a top plate and a side plate connected to the edge of the top plate. The side plate is perpendicular to the top plate, and the side plate surrounds a non-closed structure with a copper busbar socket. A raised part is formed on the top surface of the top plate. The raised part is hollow and the inner cavity of the raised part is connected to the inner cavity surrounded by the side plate. A broken part is provided on the side plate. The broken part is connected to the side plate through spaced connection points. A hollow space is formed between adjacent connection points. The inner wall of the side plate on both sides of the copper busbar socket is provided with ribs protruding from the inner wall of the side plate.

[0004] Furthermore, a detection hole penetrating the inner cavity is opened on the top surface of the raised portion.

[0005] Furthermore, a broken section is also provided on the top plate above the copper busbar socket.

[0006] Furthermore, the side plate opposite the copper busbar socket is an arc-shaped plate, with the raised part located on the side closer to the arc-shaped plate.

[0007] Furthermore, a break-off section is provided on each of the side plates on both sides of the copper busbar socket.

[0008] Based on the aforementioned terminal protection sleeve, this utility model also discloses the installation structure of the aforementioned terminal protection sleeve on a battery pack, including multiple batteries, a terminal protection sleeve fitted on the battery terminals, and a copper busbar connected to the battery terminals. The copper busbar is fixed to the terminals by bolts, and the raised part of the terminal protection sleeve covers the bolts. The copper busbar extends from the copper busbar insertion port on the terminal protection sleeve, and the protruding rib on the terminal protection sleeve is located at the lower part of the copper busbar.

[0009] Furthermore, the installation structure also includes a monitoring controller installed on each battery. The monitoring controller is connected to the terminal block via a monitoring line. The connection end of the monitoring line to the terminal block is provided with a terminal block. The terminal block is connected to the terminal block. The broken part on the side plate near the terminal block is pressed to separate it from the side plate to form a monitoring line inlet and outlet. The terminal block and the monitoring line are led out from the monitoring line inlet and outlet.

[0010] The terminal post protective sleeve designed in this utility model fully considers the assembly requirements of the connecting copper busbars and battery monitoring on the battery pack. A copper busbar insertion port is pre-set on the protective sleeve, and break-off portions are reserved in different directions. The corresponding break-off portion can be selected according to the location of the monitoring line to form the monitoring line's entry and exit points, facilitating the connection between the monitoring line and the terminal post. In addition, the protective sleeve also features raised ribs. After the protective sleeve is fitted onto the terminal post, the raised ribs are located at the bottom of the copper busbar, and the locking relationship between the raised ribs and the copper busbar prevents the protective sleeve from detaching from the terminal post, forming a reliable assembly relationship. Furthermore, the protective sleeve also has a detection hole, allowing for battery testing without removing the protective sleeve, providing convenience for daily battery monitoring and maintenance. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of the pole post protective sleeve in the embodiment; Figure 2 for Figure 1 A structural diagram of the other side; Figure 3 This is a schematic diagram of the terminal protection sleeve being installed on the battery pack in an embodiment; Figure 4 for Figure 3 Enlarged view of point A in the middle; Figure 5 for Figure 3 A schematic diagram showing the pole protective sleeve removed at point A.

[0012] Figure label: 1. Top plate; 2. Side plate; 3. Raised section; 4. Broken section; 5. Copper busbar socket; 6. Inspection hole; 7. Rib; 8. Monitoring line inlet / outlet; 9. Battery; 10. Copper busbar; 11. Monitoring line; 12. Wiring terminal; 13. Terminal post; 14. Bolt; 15. Washer. Detailed Implementation

[0013] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0014] This embodiment discloses a terminal protection sleeve, mainly for insulating and protecting the terminals 13 on each battery 9 in a battery pack. The structure of the terminal protection sleeve in this embodiment is as follows: Figure 1 and Figure 2 As shown, the entire structure is formed from a single piece of insulating material, such as plastic. The following description is for ease of directional reference. Figure 1 and Figure 2 The directions shown are for reference only. The main body of the pole protection sleeve is composed of a top plate 1 and a side plate 2 connected together. The side plate 2 is perpendicular to the top plate 1. One end of the top plate 1 has an arc-shaped structure. A raised section 3 is formed on the top of the top plate 1 near the arc-shaped structure. The raised section 3 is hollow inside, and a detection hole 6 is opened at the top of the raised section 3, penetrating the inner cavity of the raised section 3. The side plate 2 is set around the edge of the top plate 1. Only on the side away from the raised section 3 is a notch reserved and the side plate 2 is not set. This notch serves as a copper busbar insertion port 5. The side plate 2 connected to the arc-shaped structure on the top plate 1 is an arc-shaped plate. The side plate 2 and the top plate 1 together form a cavity structure with an open bottom and a reserved copper busbar insertion port 5 on the side. The inner cavity of this cavity structure is interconnected with the inner cavity of the raised section 3. The copper busbar socket 5 is reserved because the terminals 13 between the batteries 9 in the battery pack are usually connected by copper busbars 10. The copper busbars 10 can extend from the copper busbar socket 5. After the terminal protective sleeve is put on, it will not affect the connection of the terminals 13 between the batteries.

[0015] Furthermore, considering that battery packs typically have monitoring controllers for monitoring the performance of each battery (see...), Figure 3 Each battery 9 in the battery pack has a rectangular box placed on it. The monitoring controller needs to be electrically connected to the terminal 13 on the battery 9 via the monitoring line 11. Therefore, to facilitate the connection of the monitoring line 11, the terminal protective sleeve in this embodiment is provided with a break part 4 at different positions. The break part 4 is integrally formed with the side plate 2. However, in order to facilitate subsequent pressing of the break part 4, it can be broken off from the side plate 2, so that the edge of the break part 4 is connected to the side plate 2 through multiple connection points set at intervals, and a hollow is formed between adjacent connection points. Regarding the selection of the position of the break part 4, the position arrangement of the batteries 9 in the battery pack and the requirements of the exit position of the monitoring line 11 are fully considered. In this embodiment, a break part 4 is provided on the side plate 2 on both sides of the copper busbar socket 5, and a break part 4 is also provided on the top plate 1 above the copper busbar socket 5. The break part 4 can be selected according to the actual wiring position and the position corresponding to the exit position of the monitoring line 11. After breaking the break part 4, a shape can be formed as shown in the figure. Figure 2 The monitoring line entrance / exit 8 is shown.

[0016] To further ensure the stability of the pole protection sleeve installation and prevent it from falling off after installation, in this embodiment, ribs 7 are respectively provided on the inner walls of the side plates 2 on both sides of the copper busbar socket 5. The ribs 7 are located at the lower part of the inner wall of the side plate 2 and are strip-shaped structures protruding from the inner wall of the side plate 2.

[0017] Based on the terminal protection sleeve described above, this embodiment also discloses the installation structure of the terminal protection sleeve on the battery pack, such as... Figures 3 to 5 As shown, the battery pack contains multiple batteries 9, to... Figure 3 As shown in the example, the terminals 13 on adjacent batteries 9 are connected in series via copper busbars 10. To ensure the normal operation of the battery pack, each battery 9 is equipped with a monitoring controller for monitoring the operating status of the battery 9. The output terminal of the monitoring controller is electrically connected to the two terminals 13 of the battery 9 via a monitoring line 11.

[0018] During specific assembly, such as Figure 5 As shown, the top of the pole post 13 has a threaded hole. First, place the connecting end of the copper busbar 10 on the pole post 13. The connecting end of the copper busbar 10 also has a fixing hole. Install the terminal block 12 at the connecting end of the monitoring line 11. The terminal block 12 forms a forked structure. The forked end is clamped on the outer periphery of the pole post 13, pressing the terminal block 12 onto the copper busbar 10. Then, a washer 15 is fitted on the pole post 13 to press the terminal block 12 in place. Finally, screw the bolt 14 into the threaded hole of the pole post 13. After completing the above assembly and connection, finally, put the pole post protective sleeve on the pole post 13. The pole post protective sleeve covers the bolt 14, washer 15, non-insulated end of the terminal block 12, connecting end of the copper busbar 10, and pole post 13. The raised part 3 of the pole post protective sleeve provides space for the bolt 14. When installing the pole post protective sleeve, make sure that the side of the copper busbar socket 5 faces the extension direction of the copper busbar 10. Because the terminal post protective sleeve is made of insulating material, it usually has a certain degree of elastic deformation capability. When the terminal post protective sleeve is pressed down, the side plate 2 where the rib 7 is located will be pushed outwards under the force. The rib 7 can slide down along the side of the copper busbar 10 without getting stuck, so that the rib 7 on the installed terminal post protective sleeve is just stuck at the bottom of the copper busbar 10. The limiting effect of the rib 7 can improve the firmness of the terminal post protective sleeve installation. Before installing the terminal post protective sleeve, you can first observe the position of the copper busbar 10 and the monitoring line 11 on the terminal post 13, and break off the broken part 4 in the direction of the monitoring line 11 in advance to form the monitoring line inlet and outlet 8. In this way, when installing the terminal post protective sleeve, there will be no positional interference with the already assembled copper busbar 10 and monitoring line 11.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A terminal protection sleeve suitable for battery packs, characterized in that: It includes a top plate and side plates connected to the edge of the top plate. The side plates are perpendicular to the top plate and form a non-closed structure with reserved copper busbar sockets around the perimeter. The top surface of the top plate has an upward-protruding ridge. The ridge is hollow and its inner cavity is connected to the inner cavity enclosed by the side plates. The side plates have a broken section. The broken section is connected to the side plates through spaced connection points. A hollow space is formed between adjacent connection points. The inner walls of the side plates on both sides of the copper busbar sockets have protruding ribs that protrude from the inner walls of the side plates.

2. The terminal protection sleeve for a battery pack according to claim 1, characterized in that: A detection hole penetrating the inner cavity is opened on the top surface of the raised portion.

3. The terminal protection sleeve for a battery pack according to claim 1, characterized in that: The top plate above the copper busbar socket also has a break section.

4. A terminal protection sleeve for a battery pack according to claim 1, characterized in that: The side plate opposite the copper busbar socket is an arc-shaped plate, with the raised part located on the side closest to the arc-shaped plate.

5. A terminal protection sleeve for a battery pack according to claim 1, characterized in that: A break section is provided on each of the side plates on both sides of the copper busbar socket.

6. An installation structure for a pole post protective sleeve, characterized in that: The device includes multiple batteries, a terminal protection sleeve as described in any one of claims 1-5 fitted onto the battery terminals, and a copper busbar connected to the battery terminals. The copper busbar is fixed to the terminals by bolts, and the raised portion of the terminal protection sleeve covers the bolts. The copper busbar extends from the copper busbar insertion port on the terminal protection sleeve, and the protruding rib on the terminal protection sleeve is located at the lower part of the copper busbar.

7. The installation structure of the pole post protective sleeve according to claim 6, characterized in that: The installation structure also includes a monitoring controller installed on each battery. The monitoring controller is connected to the terminal block via a monitoring line. The connection end of the monitoring line to the terminal block is provided with a terminal block. The terminal block is connected to the terminal block. The broken part on the side plate near the terminal block is pressed to separate it from the side plate to form a monitoring line inlet and outlet. The terminal block and the monitoring line are led out from the monitoring line inlet and outlet.

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