CN207800680U - A kind of battery case - Google Patents

Abstract

A kind of battery case includes the babinet with open end and the case lid with open end；The box house is equipped with multiple battery modules, and each battery modules both ends are all provided with there are one the first radiator；The case lid includes first layer side wall and second layer side wall；It is equipped with first flow in the first layer side wall, second flow channel is equipped in the second layer side wall, coolant liquid is respectively arranged in the first flow and second flow channel；The both ends of the first layer side wall connect and are connected to the both ends of the second layer side wall respectively；The top of the case lid is equipped with cool-heat-exchanger, the cool-heat-exchanger is connected on the first layer side wall, the both ends of the cool-heat-exchanger are all provided with there are one the second radiator, and the open end of the open end of the case lid and the babinet, which is arranged oppositely, to be placed on the babinet.

Description

A kind of battery case

【Technical field】

The utility model is related to battery technology field more particularly to a kind of battery cases.

【Background technology】

There is its corresponding limitation in the radiator structure of the battery case of existing electric vehicle, such as the radiator structure of battery case Receive that radiating efficiency is low always, the puzzlement for the problems such as unbalanced of radiating, safety and radiating efficiency are unable to get and are effectively ensured.

In consideration of it, it is really necessary to provide a kind of novel battery case to overcome disadvantages described above.

【Utility model content】

The purpose of this utility model is to provide a kind of battery case, not only sustainably reduces the temperature in the battery case, The safety of the battery case is improved, and largely improves the heat exchange efficiency of the battery case, but also described Battery the temperature inside the box is more balanced.In addition, also having good leakproofness.

To achieve the goals above, the utility model provides a kind of battery case, includes babinet with open end and has The case lid of open end；The box house be equipped with multiple battery modules, each battery modules both ends be all provided with there are one first heat dissipation Device；The case lid includes first layer side wall and second layer side wall；It is equipped with first flow in the first layer side wall, described second It is equipped with second flow channel in layer side wall, coolant liquid is respectively arranged in the first flow and second flow channel；The two of the first layer side wall End connect and is connected to the both ends of the second layer side wall respectively；The top of the case lid is equipped with cool-heat-exchanger, described cold and hot Exchanger is connected on the first layer side wall, and the both ends of the cool-heat-exchanger are all provided with that there are one the second radiators, described The open end of case lid and the open end of the babinet are arranged oppositely and are placed on the babinet.

In a preferred embodiment, a pair of of heat-conducting plate is additionally provided in the case lid, each heat-conducting plate is rectangle, institute It states a pair of of heat-conducting plate and is arranged at intervals at the first radiator interval on the second layer side wall and with each battery modules both ends Setting.

In a preferred embodiment, the edge of the top of the box extends shape towards the direction bending far from the babinet At there is the first abutment edge；The first layer side wall of the case lid is curved towards the direction far from the case lid with the junction of second layer side wall Folding has extended to form the second abutment edge；Second abutment edge is resisted against on first abutment edge.

In a preferred embodiment, first abutment edge is in " Z " type, and includes the connection for being connected to the babinet Portion, sticking part and the bending part being vertically connected between the interconnecting piece and sticking part, the interconnecting piece are parallel with sticking part；Institute It states that the second abutment edge is L-shaped, and includes being connected to the nip portion of the case lid and being vertically connected at blocking for the nip portion Portion；The nip portion of second abutment edge fits on the sticking part of first abutment edge；The occlusion part is connected to described One end of nip portion is resisted against one end of the sticking part.

In a preferred embodiment, first radiator is radiator fan；The cool-heat-exchanger is heat dissipation Fin, the radiating fin and first flow and second flow channel are vertically arranged；Second radiator is radiator fan.

Compared with prior art, a kind of battery case provided by the utility model, not only sustainably reduces the battery case Interior temperature improves the safety of the battery case, and largely improves the heat exchange efficiency of the battery case, So that described battery the temperature inside the box is more balanced.In addition, also having good leakproofness.

【Description of the drawings】

Fig. 1 is that figure is analysed in the part of battery case provided by the utility model.

Fig. 2 is the sectional view of battery case shown in FIG. 1.

Fig. 3 is the enlarged drawing of a-quadrant shown in Fig. 2.

Fig. 4 is the sectional view at another visual angle of battery case shown in FIG. 1.

Fig. 5 is the constitutional diagram of battery case shown in FIG. 1.

【Specific implementation mode】

It is clear in order to make the purpose of this utility model, technical solution and advantageous effects be more clear, below in conjunction with attached Figure and specific implementation mode, the present invention will be further described in detail.It should be understood that described in this specification Specific implementation mode is not intended to limit the utility model just for the sake of explaining the utility model.

Include babinet 10 with open end and with opening referring to Fig. 1, the utility model provides a kind of battery case 100 The case lid 20 at mouth end.

The babinet 10 is rectangle, and internal equipped with multiple battery modules 11, and 11 both ends of each battery modules are equipped with One the first radiator 111.Specifically, first radiator 111 is radiator fan.

Please referring collectively to Fig. 2 to Fig. 5, the case lid 20 is generally rectangular, and include first layer side wall 21 and be located at institute State the second layer side wall 22 of 21 lower section of first layer side wall.First flow 211, the second layer are equipped in the first layer side wall 21 It is equipped with second flow channel 221 in side wall 22, coolant liquid 223 is respectively arranged in the first flow 211 and second flow channel 221.Described The both ends of one layer of side wall 21 are connect with the both ends of the second layer side wall 22 respectively, and the both ends difference of the first flow 221 It is connected to the both ends of the second flow channel 222.The top of the case lid 20 is equipped with cool-heat-exchanger 23, the cool-heat-exchanger 23 It is connected on the first layer side wall 21 and is vertically arranged with the first flow 211 and second flow channel 211.The cold and hot exchange The both ends of device 23 are all provided with there are one the second radiator 231, the open end pair of the open end of the case lid 20 and the babinet 10 Be placed on the babinet 10 to setting, by multiple battery modules 11 in the babinet 10 be contained in jointly the babinet 10 and In case lid 20.Specifically, the cool-heat-exchanger 23 is radiating fin, second radiator 231 is radiator fan.

Specifically, being additionally provided with a pair of of heat-conducting plate 24 in the case lid 20, each heat-conducting plate 24 is rectangle, and by metal material Material is made.The pair of heat-conducting plate 24 is arranged at intervals on the second layer side wall 22 and with the of 11 both ends of each battery modules The setting of one radiator 111 interval, can be such that heat rapidly conducts to the second sidewall 22.

It is supported specifically, the edge at 10 top of the babinet has extended to form first towards the direction bending far from the babinet 10 Keep to the side 12；The first layer side wall 21 of the case lid 20 is curved towards the direction far from the case lid 20 with the junction of second layer side wall 22 Folding has extended to form the second abutment edge 25；Second abutment edge 25 is resisted against on first abutment edge 12.

Specifically, first abutment edge 12 substantially be in " Z " type, and include the interconnecting piece 121 for being connected to the babinet 10, Sticking part 122 and the bending part 123 being vertically connected between the interconnecting piece 121 and sticking part 122, the interconnecting piece 121 with Sticking part 122 is parallel.Second abutment edge 25 is L-shaped, and includes being connected to the nip portion 251 of the case lid 20 and vertical It is connected to the occlusion part 252 of the nip portion 251；The nip portion 251 of second abutment edge 25 fit in described first against On the sticking part 122 on side 12, one end that the occlusion part 252 is connected to the nip portion 251 is resisted against the sticking part 122 One end.In this way, substantially increasing the leakproofness of battery case 100.

In use, when the multiple battery modules 11 due to work when the temperature is excessively high, the two of the multiple battery modules 11 First radiator 111 at end blows to the heat inside each battery modules 11 on the heat-conducting plate 24 of the case lid 20.It is described Coolant liquid in the second flow channel 221 of second layer side wall 22 is formed after carrying out heat exchange with the heat inside each battery modules 11 Hot steam enters in the first flow 211 of the first layer side wall 21, and hot steam is again by the first-class of the first layer side wall 21 Road 211 enters in the cool-heat-exchanger 23.Second radiator, the 231 Acceleration of starting heat at 23 both ends of the cool-heat-exchanger is steamed The heat exchange of vapour and outer low temperature air is condensed into coolant liquid, and coolant liquid flows back to the second layer by the cool-heat-exchanger 23 In the second flow channel 221 of side wall 22.So on circulate, the temperature in the battery case 100 is not only sustainably reduced, is carried The safety of the battery case 100 has been risen, and has passed through the first radiator 111, the second radiator 231 and heat-conducting plate 24 Cooperation, largely improves the heat exchange efficiency of the battery case 100, but also temperature is more equal in the battery case 100 Weighing apparatus.

The utility model is not only in the description and the implementation described, therefore for the personnel of familiar field For other advantage and modification is easily implemented, therefore without departing substantially from universal defined by claim and equivalency range Spirit and scope in the case of, the utility model is not limited to specific details, representative equipment and shown here as with retouch The diagram example stated.

Claims (5)

1. a kind of battery case, it is characterised in that：Include the babinet with open end and the case lid with open end；In the babinet Portion is equipped with multiple battery modules, and each battery modules both ends are all provided with there are one the first radiator；The case lid includes first layer Side wall and second layer side wall；It is equipped with first flow in the first layer side wall, second flow channel, institute are equipped in the second layer side wall It states in first flow and second flow channel and is respectively arranged with coolant liquid；The both ends of the first layer side wall respectively with the second layer side wall Both ends connect and are connected to；The top of the case lid is equipped with cool-heat-exchanger, and the cool-heat-exchanger is connected to the first layer side On wall, the both ends of the cool-heat-exchanger are all provided with that there are one the second radiator, the open end of the case lid and the babinets Open end, which is arranged oppositely, to be placed on the babinet.

2. battery case according to claim 1, it is characterised in that：It is additionally provided with a pair of of heat-conducting plate in the case lid, each leads Hot plate is rectangle, and the pair of heat-conducting plate is arranged at intervals on the second layer side wall and with the of each battery modules both ends One radiator interval is arranged.

3. battery case according to claim 1, it is characterised in that：The edge of the top of the box is towards far from the babinet Direction bending has extended to form the first abutment edge；The first layer side wall of the case lid is with the junction of second layer side wall towards far from institute The direction bending for stating case lid has extended to form the second abutment edge；Second abutment edge is resisted against on first abutment edge.

4. battery case according to claim 3, it is characterised in that：First abutment edge is in " Z " type, and includes being connected to Interconnecting piece, sticking part and the bending part being vertically connected between the interconnecting piece and sticking part of the babinet, the interconnecting piece It is parallel with sticking part；Second abutment edge is L-shaped, and includes being connected to the nip portion of the case lid and being vertically connected at institute State the occlusion part of nip portion；The nip portion of second abutment edge fits on the sticking part of first abutment edge；The screening One end that stopper is connected to the nip portion is resisted against one end of the sticking part.

5. battery case according to claim 1, it is characterised in that：First radiator is radiator fan；It is described cold Heat exchanger is radiating fin, and the radiating fin and first flow and second flow channel are vertically arranged；The second heat dissipation dress It is set to radiator fan.