Connection assembly for use in battery module and battery module
Disclosed are a connection assembly for a battery module and a battery module. The connection assembly for a battery module has a housing body, a cover plate and an openable and closable door, wherein the housing body is used for supporting a plurality of components; the cover plate covers the housing body and used for covering the plurality of components on the housing body; the cover plate is provided with a second through-hole, and the second through-hole positionally corresponds to at least one of the plurality of components; the openable and closable door is movably mounted on the cover plate, and is positionally changeable between an open position and a closed position; wherein in the open position, the openable and closable door opens the second through-hole to expose the at least one of the plurality of components; and in the closed position, the openable and closable door shields at least part of the second through-hole to cover the at least one of the plurality of components on the body. A contact state between a temperature sensor and a cell can be examined by means of the second through-hole.
1. A connection assembly for a battery module, comprising:
a housing body, the housing body being used for supporting a plurality of components;
a cover plate, the cover plate being adapted to cover the housing body and used for covering the plurality of components on the housing body, and the cover plate being provided with a second through-hole, the second through-hole positionally corresponding to at least one of the plurality of components;
a temperature sensor, the temperature sensor being supported on the housing body for sensing the temperature of a cell, the position of the temperature sensor being aligned with the position of the second through-hole;
the housing body is provided with a first through-hole, the first through-hole being arranged to pass through the housing body, and to correspond to the second through-hole; the temperature sensor is at least partially located in the first through-hole to sense the temperature of the cell; and
an openable and closable door, the openable and closable door being movably mounted on the cover plate, and being positionally changeable between an open position and a closed position,
wherein in the open position, the openable and closable door opens the second through-hole to expose the at least one of the plurality of components; and
in the closed position, the openable and closable door shields at least part of the second through-hole to cover the at least one of the plurality of components on the housing body.
2. The connection assembly according to claim 1 , wherein
the cover plate and the openable and closable door are integrated as a single piece; one end of the openable and closable door is connected to the cover plate via a bendable portion, and the other end thereof is danglingly arranged; and
the bendable portion is configured to be bendable to deform, such that the openable and closable door moves relative to the cover plate.
3. The connection assembly according to claim 2 , wherein
the bendable portion is sheet-shaped, and the bendable portion has a thickness smaller than that of the openable and closable door.
4. The connection assembly according to claim 2 , wherein one bendable portion is provided.
5. The connection assembly according to claim 2 , wherein
at least two bendable portions are provided; and
the at least two bendable portions are arranged at intervals in the length direction of the openable and closable door.
6. The connection assembly according to claim 5 , wherein
the at least two bendable portions are configured to enable the openable and closable door to rotate to the open position where an included angle larger than 180 degrees is formed between the openable and closable door and the second through-hole; and
the other end of the openable and closable door is connected to the cover plate.
7. The connection assembly according to claim 6 , wherein
a slot is provided in the cover plate; and
in the open position, the other end of the openable and closable door is inserted into the slot.
8. The connection assembly according to claim 7 , wherein
the slot is U-shaped, forming a pair of elastic cantilevers; and
in the open position, the elastic cantilevers are elastically deformed, such that the openable and closable door is pressed against an inner surface of the slot.
9. The connection assembly according to claim 1 , wherein
in the closed position, the openable and closable door is arranged to be flush with the cover plate.
10. The connection assembly according to claim 1 , further comprising a fixing structure, wherein
in the closed position, the fixing structure connects the openable and closable door with the housing body or the cover plate to prevent the openable and closable door from rotating towards the outside of the second through-hole.
11. The connection assembly according to claim 10 , wherein
the fixing structure comprises a snap fastener; and
in the closed position, the openable and closable door is connected to the housing body via the snap fastener, to prevent the openable and closable door from rotating towards the outside of the second through-hole.
12. The connection assembly according to claim 9 , wherein
the openable and closable door is protrudingly provided with an elastic hook;
a blocking portion is arranged on the housing body; and
in the closed position, the blocking portion is snap-fitted with the elastic hook to prevent the openable and closable door from rotating towards the outside of the second through-hole.
13. The connection assembly according to claim 1 , wherein an elastic member arranged on the temperature sensor is supported on the housing body, the elastic member is a foam material.
14. The connection assembly according to claim 13 , wherein the temperature sensor is fixedly connected to the elastic member.
15. The connection assembly according to claim 13 , wherein
the housing body is protrudingly provided with a positioning bracket; and
the positioning bracket retains the elastic member.
16. The connection assembly according to claim 1 , wherein the cover plate and the openable and closable door are integrally molded as a single piece.
17. A battery module assembly, comprising:
a plurality of cells; and
a connection assembly comprising:
a housing body, the housing body being used for supporting a plurality of components, the housing body having a first through-hole, the first through-hole being arranged to pass through the housing body to allow at least one of the plurality of components to connect to a cell of the battery module;
a cover plate, the cover plate being adapted to cover the housing body and used for covering the plurality of components on the housing body, and the cover plate being provided with a second through-hole, the second through-hole positionally corresponding to at least one of the plurality of components; and
an openable and closable door, the openable and closable door being movably mounted on the cover plate, and being positionally changeable between an open position and a closed position,
wherein in the open position, the openable and closable door opens the second through-hole to expose the at least one of the plurality of components; and
in the closed position, the openable and closable door shields at least part of the second through-hole to cover the at least one of the plurality of components on the housing body;
wherein the plurality of cells are electrically connected via a bus bar to form the battery module.
18. The battery module assembly according to claim 17 , wherein
the plurality of cells are connected in series or parallel via the busbar to form the battery module; and
each of the cells is provided with a positive terminal and a negative terminal electrically connected to the busbar.
19. The battery module assembly according to claim 18 , further comprising a power supply terminal, the power supply terminal being electrically connected to the plurality of cells via the busbar.
20. A connection assembly for a battery module, comprising:
a housing body, the housing body being used for supporting a plurality of components;
a cover plate, the cover plate being adapted to cover the housing body and used for covering the plurality of components on the housing body, and the cover plate being provided with a second through-hole, the second through-hole positionally corresponding to at least one of the plurality of components;
a temperature sensor, the temperature sensor being supported on the housing body for sensing the temperature of a cell, the position of the temperature sensor being aligned with the position of the second through-hole;
an elastic member arranged on the temperature sensor; and
an openable and closable door, the openable and closable door being movably mounted on the cover plate, and being positionally changeable between an open position and a closed position,
wherein in the open position, the openable and closable door opens the second through-hole to expose the at least one of the plurality of components and a part of the elastic member passes out of the second through-hole;
in the closed position, the openable and closable door shields at least part of the second through-hole to cover the at least one of the plurality of components on the housing body and the elastic member is located between the temperature sensor and the openable and closable door; and
the openable and closable door elastically deforms the elastic member, so as to press the temperature sensor to come into contract with the cell and detect the temperature of the cell.