High-voltage plug-in insulating protective cover and battery pack

Abstract

The utility model discloses a high-voltage plug-in insulating protective cover and a battery pack. The high-voltage plug-in insulating protective cover comprises a protective shell, the isolation part is arranged on the inner side of the protective shell; the fixing part is arranged at the end part of the protective shell; the positive electrode and the negative electrode of the high-voltage plug-in unit are blocked through the isolation part arranged in the protective shell, and the protective shell and the isolation part are axially fixed through cooperation with the fixing part. By isolating the high-voltage cathode from the high-voltage anode, short circuit of the anode and the cathode of the high-voltage plug-in is prevented; and the mounting part fixes the insulating protective cover on the inner bracket of the battery pack in a clamping manner, so that the mounting is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of power batteries, and in particular to a high-voltage plug-in insulation protection cover and a battery pack. Background Art

[0002] Electrical safety is an important part of the design of power battery systems. As an important electrical component of the battery pack, most dual-core high-voltage plug-ins currently integrate the total positive and negative poles into one plug-in. After the copper busbar fixing bolts are installed, the height of the bolt head often reduces the distance between the positive and negative poles at the plug-in position, which can easily cause positive and negative short circuit accidents. In addition, the exposed high-voltage plug-in is prone to accidental human contact, resulting in the risk of electric shock; therefore, it is necessary to set up insulating protective parts for the high-voltage plug-in to meet the safety distance and IPXXB protection requirements of the high-voltage plug-in position to ensure the electrical safety inside the battery pack.

[0003] In addition, existing plug-in insulation protection parts are usually fixed by bolts or the combination of upper and lower protective covers, which makes disassembly and assembly more complicated and requires a certain operating space. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art. To achieve the above purpose, a high-voltage plug-in insulating protective cover and a battery pack are used to solve the problems raised in the above background technology.

[0005] A high voltage plug-in insulation protection cover, comprising:

[0006] Protective shell;

[0007] an isolation portion disposed inside the protective shell, and;

[0008] A fixing portion disposed at an end of the protective shell;

[0009] The positive and negative electrodes of the high-voltage plug-in are blocked by the isolating part arranged in the protective shell, and the protective shell and the isolating part are axially fixed in cooperation with the fixing part.

[0010] As a further solution of the present invention: the protective shell includes a cover plate arranged at the top of the isolation part, a side plate arranged around the isolation part, and a bottom plate arranged at the bottom of the side plate. This design makes the protective shell structure complete, can protect the isolation part in all directions, and improves the overall stability and durability.

[0011] As a further solution of the present utility model: The side plates include a first side plate vertically arranged on the right side of the cover plate, a second side plate vertically arranged on the front side of the cover plate, a third side plate vertically arranged on the rear side of the cover plate, and a fourth side plate vertically arranged on the left side of the cover plate. By dividing the side plates into four parts, the assembly of the protective shell is made more flexible, and at the same time, the design of each part can be adjusted according to actual needs, improving the adaptability and practicability of the design.

[0012] As a further solution of the present utility model: The bottom plate includes a first bottom plate connected to the first side plate, the second side plate and the third side plate, and a second bottom plate connected to the third side plate and the fourth side plate. The segmented design forms an opening accommodating cavity, which is beneficial to covering the bare live part of the plug-in inside the protective cover, and at the same time is convenient for production and installation, improving production efficiency and product reliability.

[0013] As a further solution of the present utility model: The cover plate, the side plates and the bottom plate enclose to form an accommodating cavity for placing the isolation part.

[0014] As a further solution of the present utility model: The isolation part includes a cylindrical groove connected to the anti-cover plate, a first connecting plate vertically arranged between the cylindrical groove and the second side plate of the protective shell, and a second connecting plate vertically arranged between the cylindrical groove and the third side plate of the protective shell. This design of the isolation part enhances its connection strength with the protective shell, improves the overall stability, and at the same time helps to realize the function of the isolation part.

[0015] As a further solution of the present utility model: Both the first connecting plate and the second connecting plate are of ribbed structure. The design of the ribbed structure further enhances the strength and stiffness of the connecting plates, improving the overall stability and durability of the protective shell.

[0016] As a further solution of the present utility model: The connection part between the second side plate and the cover plate forms an opening. The design of the opening is beneficial to the extraction of the connecting copper bars, and at the same time can isolate the positive connecting copper bar and the negative connecting copper bar, avoiding interference and wear between the copper bars.

[0017] As a further solution of the present utility model: The fixing part is provided with an elastic clamping joint with a barbed structure. The design of the elastic clamping joint with a barbed structure makes the fixing part more firm, improving the installation stability and use safety of the product.

[0018] Another technical solution: A battery pack, which adopts a high-voltage plug-in insulation protective cover as described in any one of the above.

[0019] Compared with the prior art, the present utility model has the following technical effects:

[0020] With the above technical solution, an isolation part is provided inside the protective shell to block the positive and negative poles of the high-voltage plug-in, and the protective shell and the isolation part are axially fixed by the fixing part. Thus, it can cover the positive and negative poles of the high-voltage plug-in, meet the IPXXB protection requirements, effectively prevent the human body from accidentally touching the live metal parts of the high-voltage plug-in, and eliminate the risk of electric shock; at the same time, it can isolate the positive connection copper bar and the negative connection copper bar to avoid interference and wear between the copper bars; the isolation part of the insulating protective cover of the high-voltage plug-in can effectively block the positive and negative poles of the high-voltage plug-in, achieve high-voltage protection, meet the requirements of creepage distance and clearance, and avoid safety problems caused by internal short circuit; the insulating protective cover of the high-voltage plug-in, on the basis of meeting the safety of electrical isolation and screening protection, its installation part is an elastic card joint with a barb structure, and only need to press during operation to complete the installation, with small required operation space, and the fixing method is simple and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The following will describe in detail the specific embodiments of the present invention with reference to the accompanying drawings:

[0022] Figure 1 It is a schematic structural diagram of the insulating protective cover of the disclosed embodiment of the present application;

[0023] Figure 2 It is a schematic installation structure diagram of the insulating protective cover of the disclosed embodiment of the present application;

[0024] Figure 3 It is a sectional view of the installation structure of the insulating protective cover of the disclosed embodiment of the present application.

[0025] In the figure: 1. Insulating protective cover; 10. Protective shell; 20. Isolation part; 30. Installation part; 11. Cover plate; 12. Side plate; 13. Bottom plate; 121. First side plate; 122. Second side plate; 123. Third side plate; 124. Fourth side plate; 21. First connecting plate; 22. Cylindrical groove; 23. Second connecting plate; 131. First bottom plate; 132. Second bottom plate; 2. Fixed bolt; 3. Connecting copper bar; 31. Positive connection copper bar; 32. Negative connection copper bar; 4. Inner box installation bracket; 5. High-voltage plug-in; 51. Plug negative pole; 52. Plug positive pole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figure 1, in the embodiment of the present utility model, a high-voltage plug-in insulation protection cover includes:

[0028] Specifically, the high-voltage plug-in insulation protection cover 1 is an integrally formed plastic part;

[0029] A protective shell 10;

[0030] An isolation part 20 arranged inside the protective shell 10, and;

[0031] A fixing part 30 arranged at the end of the protective shell 10;

[0032] The positive and negative poles of the high-voltage plug are blocked by the isolation part 20 arranged in the protective shell 10, and the protective shell 10 and the isolation part 20 are axially fixed in cooperation with the fixing part 30.

[0033] In this embodiment, the protective shell 10 includes a cover plate 11 arranged at the top of the isolation part 20, side plates 12 arranged circumferentially on the isolation part 20, and a bottom plate arranged at the bottom end of the side plates 12.

[0034] In this embodiment, the side plates 12 include a first side plate 121 vertically arranged on the right side of the cover plate 11, a second side plate 122 vertically arranged on the front side of the cover plate 11, a third side plate 123 vertically arranged on the rear side of the cover plate 11, and a fourth side plate 124 vertically arranged on the left side of the cover plate 11.

[0035] In this embodiment, the bottom plate includes a first bottom plate 131 connected to the first side plate 121, the second side plate 122 and the third side plate 123, and a second bottom plate 132 connected to the third side plate 123 and the fourth side plate 124.

[0036] In this embodiment, the cover plate 11, the side plates 12 and the bottom plate 13 enclose a receiving cavity for placing the isolation part 20.

[0037] In this embodiment, the isolation part 20 includes a cylindrical groove 22 connected to the cover plate 11, a first connecting plate 21 vertically arranged between the cylindrical groove 22 and the second side plate 122 of the protective shell 10, and a second connecting plate 23 vertically arranged between the cylindrical groove 22 and the third side plate 123 of the protective shell 10.

[0038] In this embodiment, both the first connecting plate 21 and the second connecting plate 23 are reinforcing rib structures.

[0039] In this embodiment, the connecting part of the second side plate 22 and the cover plate forms an opening.

[0040] In this embodiment, the fixing part 30 is provided with an elastic clamping joint with a barb structure.

[0041] Such as Figure 1-2As shown in the figure, the protective housing 10 is located outside the high-voltage plug-in insulation protective cover 1, and includes a cover plate 11, side plates 12 and a bottom plate 13; the number of the cover plates 11 is 1, which is located at the top of the protective housing 10 and is horizontally arranged; the number of the side plates 12 is 4, which are located around the protective housing 10 and are connected to the cover plate 11 and extend downward, including a first side plate 121 vertically arranged on the right side of the cover plate 11, a second side plate 122 vertically arranged on the front side of the cover plate 11, a third side plate 123 vertically arranged on the rear side of the cover plate 11, and a fourth side plate 124 vertically arranged on the left side of the cover plate 11; the number of the bottom plates 13 is 2, which are located at the bottom of the protective housing 10 and are connected to the side plates 12 and extend horizontally; including a first bottom plate 131 connected to the first side plate 121, the second side plate 122 and the third side plate 123, and a second bottom plate 132 connected to the third side plate 123 and the fourth side plate 124; the cover plate 11, the side plates 12 and the bottom plate 13 enclose to form the protective housing 10, and its interior has an accommodation cavity. In practical applications, the positive and negative poles of the high-voltage plug-in 5 are placed in the interior accommodation cavity of the protective housing 10 to shield the high-voltage plug-in 5 and prevent human body from accidentally touching it;

[0042] Specifically, as Figure 2 shown, the second side plate 122 on the front side of the protective housing 10 is located at the position where the connecting busbar 3 is led out. The second side plate 122 is partially connected to the cover plate 11 to form an opening, so that the inside and outside of it can be respectively used for the installation of the positive connecting busbar 31 and the negative connecting busbar 32, avoiding interference and wear between the busbars;

[0043] Specifically, as Figure 2 and Figure 3 shown, the isolation part 20 is located inside the high-voltage plug-in insulation protective cover 1, and includes a cylindrical groove 22, a first connecting plate 21 and a second connecting plate 23; the upper end of the cylindrical groove 22 is connected to the cover plate 11 of the protective housing 1, and the lower end is used for inserting the head of the fixing bolt 2. Its interior has a cylindrical accommodation cavity, and the head of the fixing bolt 2 of the positive electrode 52 of the high-voltage plug-in 5 is located in the accommodation cavity of the cylindrical groove 22, isolating the negative electrode 51 and the positive electrode 52 of the plug-in by shielding the head of the fixing bolt 2. The first connecting plate 21 is vertically arranged between the cylindrical groove 22 and the second side plate 122 of the protective housing 10 to connect the cylindrical groove 22 and the protective housing 10. The second connecting plate 23 is vertically arranged between the cylindrical groove 22 and the third side plate 123 of the protective housing 10 to connect the cylindrical groove 22 and the protective housing 10. Both the first connecting plate 21 and the second connecting plate 23 are of ribbed structure, which can improve the strength and rigidity of the product and prevent the high-voltage plug-in insulation protective cover 1 from deforming and twisting;

[0044] Specifically, as Figure 2 and Figure 3As shown in the figure, the installation part 30 is located at the bottom of the insulation protection cover 1 and is connected to the bottom plate 13. The installation part 30 is provided with elastic card joints with barbs. By cooperating with the installation holes of the installation bracket 4 in the box, the insulation protection cover 1 can be limited in the battery pack. During operation, by pressing down the cover plate 11 of the insulation protection cover 1 until the installation part 30 is inserted into the installation holes of the installation bracket 4 in the box, the installation is successful. The installation is convenient and requires little operating space.

[0045] Technical solution on the other hand: A battery pack, which adopts a high-voltage plug-in insulation protection cover as described in any one of the above.

[0046] It has the following effects:

[0047] 1) The protective shell of the high-voltage plug-in insulation protection cover can shield the positive and negative poles of the high-voltage plug, meet the IPXXB protection requirements, effectively prevent the human body from accidentally touching the charged metal parts of the high-voltage plug, and eliminate the risk of electric shock. At the same time, it can isolate the positive connection copper bar and the negative connection copper bar to avoid interference and wear between the copper bars;

[0048] 2) The isolation part of the high-voltage plug-in insulation protection cover can effectively block the positive and negative poles of the high-voltage plug, achieve high-voltage protection, meet the requirements of creepage distance and electrical clearance, and avoid safety problems caused by internal short circuits;

[0049] 3) For the high-voltage plug-in insulation protection cover, on the basis of meeting the safety requirements of electrical isolation and shielding protection, its installation part is an elastic card joint with a barb structure. During operation, the installation can be completed only by pressing, with little operating space required, and the fixing method is simple and efficient.

[0050] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, in any regard, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model, and any reference signs in the claims should not be regarded as limiting the claims involved.

[0051] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-voltage plug-in insulation protection cover, characterized in that Comprising: A protective shell; An isolation part arranged inside the protective shell, and; A fixing part arranged at the end of the protective shell; The positive and negative electrodes of the high-voltage plug are blocked by the isolation part arranged inside the protective shell, and the protective shell and the isolation part are axially fixed in cooperation with the fixing part.

2. The high-voltage plug-in insulation protection cover according to claim 1, characterized in that, The protective shell includes a cover plate arranged at the top of the isolation part, side plates arranged circumferentially on the isolation part, and a bottom plate arranged at the bottom of the side plates.

3. The high-voltage plug-in insulation protection cover according to claim 2, wherein The side plates include a first side plate vertically arranged on the right side of the cover plate, a second side plate vertically arranged on the front side of the cover plate, a third side plate vertically arranged on the rear side of the cover plate, and a fourth side plate vertically arranged on the left side of the cover plate.

4. The high-voltage plug-in insulation protection cover according to claim 3, characterized in that, The bottom plate includes a first bottom plate connected to the first side plate, the second side plate and the third side plate, and a second bottom plate connected to the third side plate and the fourth side plate.

5. The insulating protective cover for a high-voltage plug-in according to claim 4, characterized in that, The cover plate, the side plates and the bottom plate enclose to form a receiving cavity for placing the isolation part.

6. The high-voltage plug-in insulation protection cover according to claim 5, characterized in that, The isolation part includes a cylindrical groove connected to the cover plate, a first connecting plate vertically arranged between the cylindrical groove and the second side plate of the protective shell, and a second connecting plate vertically arranged between the cylindrical groove and the third side plate of the protective shell.

7. The high-voltage plug-in insulation protection cover according to claim 6, wherein, Both the first connecting plate and the second connecting plate are ribbed structures.

8. The high-voltage plug-in insulation protection cover according to claim 6, characterized in that, The connection part between the second side plate and the cover plate forms an opening.

9. The high-voltage plug-in insulation protection cover according to claim 1, characterized in that, The fixing part is provided with an elastic clamping joint with a barbed structure.

10. A battery pack, characterized in that, It adopts a high-voltage plug insulating protective cover according to any one of claims 1 to 9.

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