Copper bar flexible connector with buckle

Abstract

The utility model relates to an electric automobile battery connecting piece, and discloses a copper bar flexible connector with a buckle, which comprises a copper bar (1), two ends of the copper bar (1) are bent to form connector parts (11), and a heat shrink tube (2) is sleeved on the copper bar (1). A heat insulation plate (3) is installed on one end face of the copper bar (1), a linear insertion hole is formed in the position, corresponding to the heat shrink tube (2), of the heat insulation plate (3), and the lower end of the buckle (4) extends into the heat shrink tube (2) through the insertion hole and is connected with the heat insulation plate (3). According to the copper bar flexible connector, the buckle design is added, so that the copper bar flexible connector can be clamped on some accessories such as a battery cover plate through the buckle when the copper bar flexible connector is longer, and the stability of the copper bar flexible connector when the battery pack is connected is ensured. And the buckle can also be used for clamping the cable, so that the regularity of wiring in the battery box is ensured.

Description

Technical Field

[0001] This utility model relates to electric vehicle battery connectors, and more particularly to a copper busbar flexible connector with a snap-fit ​​mechanism. Background Technology

[0002] Flexible copper busbars are battery connectors for electric vehicles. Generally, a flexible copper busbar consists of multiple copper sheets stacked together and secured with a heat-shrink tubing. The ends are heat-fused together to form a connector, such as the flexible copper busbar with notification number CN220526599U. This type of flexible copper busbar has no other purpose besides connection, making its function relatively simple. Longer copper busbars offer greater stability. However, because the heat-shrink tubing is relatively thin, when the copper busbar directly contacts the battery or other components through the tubing, the cushioning effect is poor, and the heat-shrink tubing is easily worn through. Utility Model Content

[0003] This invention addresses the shortcomings of existing technologies by providing a flexible copper busbar connector with a snap-fit ​​mechanism.

[0004] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method:

[0005] A flexible copper busbar connector with a snap fastener includes a copper busbar with both ends bent to form a joint, and a heat shrink tubing fitted on the copper busbar; it also includes a snap fastener, a heat insulation plate installed on one end face of the copper busbar, and a straight insertion hole provided at the heat shrink tubing corresponding to the heat insulation plate, with the lower end of the snap fastener extending into the heat shrink tubing through the insertion hole and connecting to the heat insulation plate.

[0006] Preferably, the buckle is an integrated buckle, which includes an engaging part and a positioning part. The positioning part is located on the lower end face of the engaging part and is an elastic sheet. The positioning part extends into the insertion hole and is connected to the heat insulation plate.

[0007] Preferably, the positioning part is shaped like an inverted "L" and includes a bonding piece and a connecting piece. The bonding piece is fixedly connected to the engaging part through the connecting piece, and the length of the bonding piece is greater than the length of the connecting piece.

[0008] Preferably, the length of the bonding piece is a, the length of the connecting piece is b, the length of the engaging part is c, a < c, and a ≥ 3b.

[0009] Preferably, the upper end of the buckle is provided with a locking hole, and the opening width of the locking hole is smaller than the diameter of the locking hole.

[0010] Preferably, a high-temperature resistant buffer pad is installed on the other end of the copper busbar, and heat shrink tubing wraps the buffer pad around the copper busbar.

[0011] This utility model, by adopting the above technical solution, has significant technical effects:

[0012] This copper busbar flexible connector features a snap-fit ​​design. When the flexible connector is long, it can be secured to accessories such as the battery cover using the snap-fit, ensuring the stability of the flexible connector when connecting to the battery pack. The snap-fit ​​can also be used to secure cables, ensuring neat wiring inside the battery box.

[0013] This copper busbar flexible connector is also equipped with a buffer pad, which gives the copper busbar flexible connector a certain shock absorption effect, protecting the copper busbar itself on the one hand, and also having a certain noise reduction effect on the other hand. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model.

[0015] Figure 2 yes Figure 1 A schematic diagram of the structure without heat shrink tubing installed.

[0016] Figure 3 This is a schematic diagram of the buckle structure.

[0017] The names of the body parts referred to by the numbers in the above attached diagrams are as follows:

[0018] 1—Copper busbar, 11—Connector

[0019] 2—Heat Shrink Tubing

[0020] 3—Insulation board

[0021] 4—Snap fastener, 41—Activating part, 42—Positioning part, 43—Snap hole, 421—Fitting piece, 422—Connecting piece

[0022] 5—Buffer pad Detailed Implementation

[0023] The following is in conjunction with the appendix Figure 1-3 The present invention will be further described in detail with reference to the embodiments.

[0024] Example 1

[0025] A flexible copper busbar connector with snap-fit ​​features a copper busbar 1, which is composed of multiple copper sheets stacked together. Both ends of the copper busbar 1 are bent to form connector sections 11, which are rigid and used to install screws and connect the copper busbar 1 to a battery pack. A heat-shrink tubing 2 is fitted onto the copper busbar 1. After being treated with hot air, the heat-shrink tubing 2 is locked onto the copper busbar 1, thus wrapping the multiple copper sheets together to form a single unit. The flexible copper busbar connector also includes snap-fit ​​features 4. A heat insulation plate 3 is installed on one end face of the copper busbar 1 and is glued to the copper busbar 1. The heat insulation plate 3 serves to block heat and also provides insulation. The heat insulation board 3 has a straight-line insertion hole at the heat shrink tube 2. The lower end of the buckle 4 extends into the heat shrink tube 2 through the insertion hole and connects with the heat insulation board 3. The lower end of the buckle 4 is inserted into the insertion hole and attached to the heat insulation board 3. Then, the heat shrink tube 2 is heated by a hot air blower, and the heat shrink tube 2 will be tightly tightened on the copper busbar 1, and the buckle 4 will also be fastened to the copper busbar 1.

[0026] The buckle 4 is an integrated buckle, which includes an engaging part 41 and a positioning part 42. The positioning part 42 is located on the lower end face of the engaging part 41. The positioning part 42 is an elastic thin sheet that extends into the insertion hole and connects to the heat insulation plate 3. The positioning part 42 can be bent and inserted into the insertion hole, thereby facilitating the engagement of the buckle 4 with the heat shrink tubing 2 and its installation on the heat insulation plate 3.

[0027] The positioning part 42 is shaped like an inverted "L" and can hook the heat shrink tubing 2 through the insertion hole. The positioning part 42 includes an adhesive piece 421 and a connecting piece 422. The adhesive piece 421 is fixedly connected to the engaging part 41 through the connecting piece 422. The length of the adhesive piece 421 is greater than the length of the connecting piece 422. The longer adhesive piece 421 has a larger contact area with the heat shrink tubing 2, ensuring the stability of the buckle 4 during installation.

[0028] The length of the bonding piece 421 is 'a', the length of the connecting piece 422 is 'b', and the length of the engaging part 41 is 'c', where a < c and a ≥ 3b. The bonding piece 421 cannot be too long, as this would affect its installation and make it difficult for the copper busbar 1 to bend. In this embodiment, the length of the bonding piece 421 is three times that of the engaging part 41.

[0029] The upper end of the clip 4 is provided with a locking hole 43 for engaging cables. The opening width of the locking hole 43 is smaller than the diameter of the locking hole 43. The locking hole 43 can engage with other accessories of the battery box, thereby allowing the copper busbar 1 to be stably installed inside the battery box. In other embodiments, the locking hole 43 can also be used to position cables, ensuring that the cables inside the battery box are neatly arranged.

[0030] Example 2

[0031] Example 2 is basically the same as Example 1, except that the length of the bonding piece 421 is 'a', the length of the connecting piece 422 is 'b', and the length of the engaging part 41 is 'c', where a < c and a ≥ 3b. The bonding piece 421 cannot be too long, as this would affect its installation and make it difficult for the copper busbar 1 to bend. In this example, the length of the bonding piece 421 is four times that of the engaging part 41.

[0032] Example 3

[0033] Example 3 is basically the same as Example 1, except that a high-temperature resistant buffer pad 5 is installed on the other end face of the copper busbar 1. The buffer pad 5 is fixed to the copper busbar 1 by adhesive bonding, and then wrapped around the copper busbar 1 by heat shrink tubing 2. The buffer pad 5 enables the flexible connection of the copper busbar to have a certain shock absorption effect, protecting the copper busbar 1 itself on the one hand, and also having a certain noise reduction effect on the other hand.

Claims

1. A flexible copper busbar connector with a snap-fit ​​mechanism, comprising a copper busbar (1), wherein both ends of the copper busbar (1) are bent to form a connector (11), and a heat shrink tubing (2) is fitted onto the copper busbar (1); characterized in that: It also includes a buckle (4), a heat insulation plate (3) is installed on one end face of the copper busbar (1), and a straight insertion hole is provided at the heat shrink tube (2) corresponding to the heat insulation plate (3). The lower end of the buckle (4) extends into the heat shrink tube (2) through the insertion hole and connects with the heat insulation plate (3).

2. The copper busbar flexible connector with a snap-fit ​​according to claim 1, characterized in that: The buckle (4) is an integrated buckle. The buckle (4) includes a locking part (41) and a positioning part (42). The positioning part (42) is located on the lower end face of the locking part (41). The positioning part (42) is an elastic sheet. The positioning part (42) extends into the insertion hole and is connected to the heat insulation plate (3).

3. A flexible copper busbar connector with a snap-fit ​​mechanism according to claim 1, characterized in that: The positioning part (42) is in the shape of an inverted "L". The positioning part (42) includes a bonding piece (421) and a connecting piece (422). The bonding piece (421) is fixedly connected to the engaging part (41) through the connecting piece (422). The length of the bonding piece (421) is greater than the length of the connecting piece (422).

4. A flexible copper busbar connector with a snap-fit ​​mechanism according to claim 3, characterized in that: The length of the bonding piece (421) is a, the length of the connecting piece (422) is b, the length of the engaging part (41) is c, a < c, a ≥ 3b.

5. A flexible copper busbar connector with a snap-fit ​​mechanism according to claim 1, characterized in that: The buckle (4) has a buckle hole (43) at the upper end, and the opening width of the buckle hole (43) is smaller than the diameter of the buckle hole (43).

6. A copper busbar flexible connector with a snap-fit ​​according to any one of claims 1-5, characterized in that: A high-temperature resistant buffer pad (5) is installed on the other end of the copper busbar (1), and the heat shrink tubing (2) wraps the buffer pad (5) around the copper busbar (1).

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