First Connector, Battery, Connector Assembly and Electric Device

1 . A first connector, configured for cooperating with at least one second connector in an insertion way, comprising:

a first connector body, having an opening configured to allow the at least one second connector to be inserted thereinto; and

at least one protective cover, movably mounted on the first connector body, and configured for covering the opening;

wherein the at least one protective cover is configured to be pushed, when the at least one second connector is inserted into and connected with the first connector, by the at least one second connector to open the opening.

2 . The first connector according to claim 1 , wherein the at least one protective cover is rotatably mounted on the first connector body, and the at least one protective cover is configured to be pushed, when the at least one second connector is inserted into and connected with the first connector, by the at least one second connector to rotate to open the opening, with a rotation axis of the at least one protective cover is perpendicular to an insertion direction of the at least one second connector.

3 . The first connector according to claim 2 , wherein the first connector body includes an end surface and an outer peripheral surface, the opening is provided at the end surface, and the outer peripheral surface surrounds the end surface, wherein when the at least one protective cover covers the opening, one end of the at least one protective cover protrudes from the outer peripheral surface for being pushed and rotated by the at least one second connector.

4 . The first connector according to claim 2 , wherein the at least one protective cover is slidably mounted on the first connector body, and the at least one protective cover is configured to continue, after being pushed and rotated by the at least one second connector, to be pushed by the at least one second connector to move in the insertion direction of the at least one second connector.

5 . The first connector according to claim 4 , wherein the first connector body includes an end surface and an outer peripheral surface, the opening is provided at the end surface, the outer peripheral surface surrounds the end surface, the outer peripheral surface is provided with at least one first sliding slot extending in the insertion direction of the at least one second connector, and the at least one protective cover slidably fits with the at least one first sliding slot.

6 . The first connector according to claim 5 , wherein the at least one protective cover each comprises a cover body and at least one fulcrum portion, the cover body is configured to cover the opening, the at least one fulcrum portion is fixed to the cover body, and the at least one fulcrum portion rotatably and slidably fits with the at least one first sliding slot, the at least one protective cover is configured to be pushed, when the at least one second connector is inserted into and connected with the first connector, by the at least one second connector to rotate around the at least one fulcrum portion and move along the at least one first sliding slot.

7 . The first connector according to claim 6 , wherein the at least one protective cover each comprises two fulcrum portions, the two fulcrum portions are arranged opposite to each other in a width direction of the cover body, first sliding slots are provided corresponding to the fulcrum portions, and each of the fulcrum portions rotatably and slidably fits in the corresponding first sliding slot.

8 . The first connector according to claim 4 , wherein one side of each of the at least one protective cover away from the first connector body is provided with a first fastening part, and the first fastening part is configured to cooperate, when the protective cover is pushed and rotated by corresponding second connector, with a second fastening part on the corresponding second connector, so that the protective cover can be pushed by the corresponding second connector to slide in the insertion direction of the corresponding second connector.

9 . The first connector according to claim 1 , wherein the at least one protective cover includes two protective covers, and the two protective covers are provided to be opened opposite to each other and configured to together cover the opening.

10 . The first connector according to claim 9 ,

wherein ends of the two protective covers close to each other are respectively provided with a first magnetic element and a second magnetic element; and

wherein when the two protective covers cover the opening, the first magnetic element and the second magnetic element attract each other.

11 . A battery, comprising:

a box body;

at least one battery cell accommodated in the box body; and

the first connector according to claim 1 , wherein the first connector is installed on the box body.

12 . A connector assembly, comprising:

the first connector according to claim 1 ; and

the at least one second connector configured for being inserted into and connected with the first connector.

13 . The connector assembly according to claim 12 , wherein the at least one second connector each comprises a second connector body and a top pushing portion, the second connector body is configured for being inserted into and connected with the first connector body, and the top pushing portion is connected with the second connector body, and configured to push the corresponding protective cover.

14 . The connector assembly according to claim 13 , wherein the top pushing portion is provided with a second fastening part, and the second fastening part is configured to cooperate with the first fastening part on the corresponding protective cover, so that the corresponding protective cover can be pushed by the second fastening part to slide in the insertion direction of the second connector.

15 . A connector assembly according to claim 13 , wherein:

the at least one protective cover includes two protective covers; and

the at least one second connector each comprises two top pushing portions, and the two top pushing portions are provided spacedly and configured for pushing the two protective covers.

16 . An electric device, comprising:

an electric device body;

a battery, configured to supply power to the electric device body; and

the connector assembly according to claim 12 , wherein the first connector is provided on one of the electric device body and the battery, and the at least one second connector is provided on the other of the electric device body and the battery.