High-voltage base with elastic insert and connecting structure

Abstract

The utility model discloses a high-voltage base with an elastic insert and a connecting structure, and belongs to the technical field of power batteries, the high-voltage base comprises a high-voltage base main body and a base insert arranged on the high-voltage base main body, the base insert is used for being connected with a bolt, and the base insert is of a bowl-shaped elastic structure; after a bolt penetrates through the base insert to be connected with the high-pressure base body, the elastic structure of the base insert expands and contracts according to cold and heat, and the elastic structure and the bolt are always in a tightened state. The bolt is limited through the base insert of the bowl-shaped elastic structure, the elastic structure of the base insert expands and contracts according to cold and hot, and looseness of the bolt is reduced through elastic deformation.

Description

Technical Field

[0001] The utility model relates to a high-voltage base with an elastic insert and a connection structure, belonging to the technical field of power batteries. Background Art

[0002] Power batteries are usually charged and discharged by tightening copper bars, aluminum bars and other current-carrying parts with bolts. This requires a nut to be used with the bolts. However, if only an exposed nut is used, there will be electrical safety hazards, which requires the use of what we usually call a high-voltage base and protective cover. If the battery pack is charged and discharged for a long time and many times, the current-carrying parts will continue to heat up, and the battery pack will continue to vibrate during driving, which may cause the bolt fasteners to loosen and the current-carrying parts to have poor contact, reducing the service life of the battery pack. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a high-voltage base and a connection structure with an elastic insert, which solves the problem of loosening of bolt fasteners while satisfying product performance and reliability.

[0004] In order to achieve the above purpose, the utility model is implemented by adopting the following technical solutions:

[0005] In a first aspect, the utility model provides a high-voltage base with an elastic insert, comprising: a high-voltage base body and a base insert arranged on the high-voltage base body, the base insert being used to be connected with a bolt, and the base insert being a bowl-shaped elastic structure;

[0006] After the bolts pass through the base insert and are connected to the high-voltage base body, the elastic structure of the base insert expands and contracts according to the cold and hot conditions, and is always in a tightened state with the bolts.

[0007] Furthermore, elastic plates are arranged on both sides of the base insert, a first slot cooperating with the elastic plates is opened on the high-voltage base body, and the base insert is inserted into the first slot on the high-voltage base body through the elastic plates on both sides.

[0008] Furthermore, a nut is provided at the bottom of the base insert, for the bolt to pass through the base insert and connect with the nut A.

[0009] Furthermore, the base insert and the nut are an integral structure.

[0010] In a second aspect, the present invention provides a connection structure of a high-voltage base with an elastic insert according to any of the above items, characterized in that it includes an aluminum bar, which is fixed to the high-voltage base body by bolts, and the bolts pass through the base insert and are connected to nuts.

[0011] Furthermore, it also includes an end plate, which has a plurality of cavities, and the high-voltage base body includes a base lower plastic part and a base upper plastic part, the base upper plastic part is used to install the base insert, and the base lower plastic part is inserted into the cavity and connected to the end plate.

[0012] Furthermore, a positioning hole is provided on the mold cavity, and an elastic circular boss which cooperates with the positioning hole is provided on the plastic part under the base, and the plastic part under the base is inserted into the positioning hole on the mold cavity through the circular boss.

[0013] Furthermore, a protective cover is snap-connected to the plastic part on the base.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The utility model provides a high-pressure base with an elastic insert, which limits the bolts by means of a base insert with a bowl-mounted elastic structure. The elastic structure of the base insert expands and contracts according to the cold and hot conditions, and reduces the loosening of the bolts by elastic deformation;

[0016] 2. Elastic plates are arranged on both sides of the base insert, which can be inserted from the side of the base. The elastic structure is fixed by the first slot, and the installation is very convenient;

[0017] 3. The high-voltage base is a semi-open plastic part, which can limit the insert while meeting the electrical clearance;

[0018] 4. The lower part of the high-voltage base is inserted into the end plate cavity for fixing. At the same time, the two elastic circular bosses of the plastic part under the base are pressed during assembly. After installation, the circular bosses are inserted into the end plate positioning holes for limiting, which makes installation very convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an exploded schematic diagram of the assembly of the connection structure of the high-voltage base with elastic inserts provided by an embodiment of the utility model;

[0020] Figure 2 , Figure 3 It is a schematic diagram of a high-voltage base with an elastic insert provided in an embodiment of the utility model.

[0021] In the figure: 1, protective cover; 11, first clamping block; 12, second clamping block; 13, third clamping block; 2, aluminum bar; 3, high-voltage base body; 31, plastic part under the base; 32, plastic part on the base; 33, base insert; 34, first clamping groove; 35, circular boss; 36, limit plate; 37, second clamping groove; 38, first side boss; 39, second side boss; 3A, nut; 4, end plate; 41, cavity; 42, positioning hole; 5, bolt. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0023] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0025] Example 1

[0026] like Figure 2 , Figure 3 As shown, this embodiment introduces a high-voltage base with an elastic insert, comprising: a high-voltage base body 3 and a base insert 33 arranged on the high-voltage base body 3, wherein the base insert 33 is used to connect with the bolt 5, and the base insert 33 is a bowl-shaped elastic structure;

[0027] After the bolt 5 passes through the base insert 33 and is connected to the high-voltage base body 3 , the elastic structure of the base insert 33 is always in a tightened state with the bolt 5 according to the expansion and contraction of the base insert 33 due to the cold and hot conditions.

[0028] Elastic plates are arranged on both sides of the base insert 33, and a first card slot 34 cooperating with the elastic plate is opened on the high-voltage base body 3. The base insert 33 is inserted into the first card slot 34 on the high-voltage base body 3 through the elastic plates on both sides; a nut 3A is arranged at the bottom of the base insert 33 for the bolt 5 to pass through the base insert 33 and connect with the nut 3A; the base insert 33 and the nut 3A are an integrated structure.

[0029] Example 2

[0030] like Figure 1-3 As shown, this embodiment introduces a connection structure of a high-voltage base with an elastic insert, including: a protective cover 1, a first clamping block 11, a second clamping block 12, a third clamping block 13, an aluminum bar 2, a high-voltage base body 3, a base lower plastic part 31, a base upper plastic part 32, a base insert 33, a first clamping groove 34, a circular boss 35, a limiting plate 36, a second clamping groove 37, a first side boss 38, a second side boss 39, a nut 3A, an end plate 4, a cavity 41, a positioning hole 42 and a bolt 5; The base insert 33 is arranged on the high-voltage base body 3, and the base insert 33 is used to connect with the bolt 5, and the base insert 33 is a bowl-shaped elastic structure; the aluminum bar 2 is fixed to the high-voltage base body 3 by the bolt 5, and the bolt 5 passes through the base insert 33 and is connected to the high-voltage base body 3, and the base insert 33 is arranged around the outer surface of the bolt 5; the base insert 33 can expand and contract according to the cold and hot expansion and contraction through the elastic bowl-shaped structure, and the elastic deformation of the insert can reduce the loosening of the bolt 5;

[0031] like Figure 3 As shown, a nut 3A is provided at the bottom of the base insert 33, and the bolt 5 passes through the base insert 33 and is connected to the nut 3A. The base insert 33 and the nut 3A are an integrated structure;

[0032] like Figure 2 As shown, elastic plates are arranged on both sides of the base insert 33, and a first card slot 34 cooperating with the one-way elastic buckle structure is opened on the high-voltage base body 3. The base insert 33 can be put in from the side of the high-voltage base body 3, and the elastic plate is fixed by the first card slot 34;

[0033] like Figure 1 , Figure 2As shown, the high-voltage base body 3 includes a lower plastic part 31 and an upper plastic part 32 of the base, the upper plastic part 32 of the base is connected with the bolt 5, and the lower plastic part 31 of the base is inserted into the cavity 41 of the end plate 4 for fixing; a positioning hole 42 is provided on the cavity 41, and an elastic circular boss 35 that cooperates with the positioning hole 42 is provided on the lower plastic part 31 of the base; a protective cover 1 is snap-connected to the upper plastic part 32 of the base; limiting plates 36 are symmetrically provided on both sides of the upper plastic part 32 of the base, and a second card groove 37 is provided in the middle of the limiting plate 36, and a first card block 11 that cooperates with the second card groove 37 is provided on the protective cover 1; the lower part of the high-voltage base is inserted into the cavity 41 of the end plate 4 for fixing, and at the same time, the two elastic circular bosses 35 of the lower plastic part 31 of the base are pressed during assembly, and the circular boss 35 is inserted into the positioning hole 42 of the end plate 4 for limiting after installation, and the installation is very convenient;

[0034] like Figure 1 , Figure 2 As shown, the first side boss 38 and the second side boss 39 are respectively provided on both sides of the limit plate 36, and the first side boss 38 and the second side boss 39 are asymmetric structures. The protective cover 1 is provided with a first clamping block 11 and a second clamping block 12 that cooperate with the first side boss 38 and the second side boss 39; the upper part of the high-voltage base is assembled with the protective cover 1, and the first side boss 38 and the second side boss 39 are made into an asymmetric structure, which can effectively prevent the protective cover 1 from being installed upside down.

[0035] The working principle of this embodiment is as follows:

[0036] Figure 1 It is an exploded diagram of the assembly of a high-voltage base with elastic inserts, wherein the protective cover 1 is assembled on the high-voltage base body 3 by snap-fitting, the aluminum bar 2 is fastened on the high-voltage base body 3 by bolts 5, the plastic part 31 under the base is inserted into the cavity 41 of the end plate 4, and two elastic circular bosses 35 are pressed during assembly, and after installation, the circular bosses 35 are inserted into the positioning holes 42 of the end plate 4 for limiting;

[0037] Figure 2 Schematic diagram of a high-voltage base with an elastic insert. The base insert 33 is pushed in from the side of the plastic part 32 on the base before use. Elastic plates are arranged on both sides of the base insert 33. The base insert 33 is pushed in from the plastic part 32 on the base. The elastic plates of the base insert 33 are pressed into the first slot 34 on the plastic part 32 on the base. The base insert 33 protrudes from the upper surface of the plastic part 32 on the base by 0.2 mm.

[0038] Figure 3It is a schematic diagram of a high-voltage base with an elastic insert. The base insert 33 has a bowl-shaped elastic structure. When the aluminum busbar 2 and the copper busbar continuously expand and contract during the charging and discharging process, the bowl-shaped structure of the base insert 33 will expand and contract together, and will always be in a tightened state with the bolt 5, reducing the risk of the bolt 5 loosening.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A high-voltage base with an elastic insert, characterized in that: include: A high-voltage base body (3) and a base insert (33) arranged on the high-voltage base body (3), wherein the base insert (33) is used to be connected to the bolt (5), and the base insert (33) is a bowl-shaped elastic structure; When the bolt (5) passes through the base insert (33) and is connected to the high-voltage base body (3), the elastic structure of the base insert (33) is always in a tightened state with the bolt (5) according to the expansion and contraction of the base insert (33) due to the cold and hot conditions.

2. The high voltage base with elastic insert according to claim 1, characterized in that: Elastic plates are arranged on both sides of the base insert (33), and a first clamping groove (34) cooperating with the elastic plate is opened on the high-voltage base body (3). The base insert (33) is inserted into the first clamping groove (34) on the high-voltage base body (3) through the elastic plates on both sides.

3. The high voltage base with elastic insert according to claim 1, characterized in that: A nut (3A) is provided at the bottom of the base insert (33) for the bolt (5) to pass through the base insert (33) and connect with the nut (3A).

4. The high voltage base with elastic insert according to claim 3, characterized in that: The base insert (33) and the nut (3A) are an integral structure.

5. A connection structure of a high-voltage base with an elastic insert according to any one of claims 1 to 4, characterized in that: It comprises an aluminum bar (2), wherein the aluminum bar (2) is fixed to a high-voltage base body (3) by means of bolts (5), wherein the bolts (5) pass through a base insert (33) and are connected to a nut (3A).

6. The connection structure of the high-voltage base with elastic insert according to claim 5, characterized in that: It also includes an end plate (4), on which a plurality of cavities (41) are formed. The high-voltage base body (3) includes a base lower plastic part (31) and a base upper plastic part (32). The base upper plastic part (32) is used to install a base insert (33). The base lower plastic part (31) is inserted into the cavity (41) and connected to the end plate (4).

7. The connection structure of the high voltage base with elastic insert according to claim 6, characterized in that: The mold cavity (41) is provided with a positioning hole (42), the lower plastic part (31) of the base is provided with an elastic circular boss (35) which cooperates with the positioning hole (42), and the lower plastic part (31) of the base is inserted into the positioning hole (42) on the mold cavity (41) through the circular boss (35).

8. The connection structure of the high voltage base with elastic insert according to claim 6, characterized in that: A protective cover (1) is snap-connected to the plastic part (32) on the base.

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