CN220914341U - Heat exchange device, battery pack and vehicle - Google Patents

Abstract

The utility model discloses a heat exchange device, a battery pack and a vehicle, wherein the heat exchange device comprises: the runner plate, the runner plate has runner district and non-runner district, the runner plate is limited the runner, the runner is located the runner district, the non-runner district is equipped with at least one connecting piece and at least one reinforcing part, the connecting piece is located the one side surface of the thickness direction of runner plate, the reinforcing part is adjacent the connecting piece sets up. Therefore, the reinforcing part is arranged in the non-runner area of the runner plate, the reinforcing part is arranged on the runner plate in a false runner mode, the structural strength of the area of the runner plate provided with the reinforcing part is improved while the supporting performance of the runner plate is improved, and the rigidity of the runner plate is improved, so that the bending resistance and the pressure resistance of the heat exchange device are improved.

Description

Heat exchange device, battery pack and vehicle

Technical Field

The utility model relates to the technical field of batteries, in particular to a heat exchange device, a battery pack and a vehicle.

Background

In the prior art, along with the energy density promotion of battery package, the heat management degree of difficulty increases, and the heat dissipation problem increases, and the security and the life-span of battery package are consequently influenced easily, and traditional natural cooling mode or forced air cooling radiating mode can't satisfy the demand, and most products adopt at present and are the liquid cooling system, and the structural design of runner board plays very important effect to whole liquid cooling system temperature difference control, sets up the runner board in the tray below, can effectively promote the radiating efficiency of battery package, but the runner board has the lower problem of structural strength.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, a first object of the present utility model is to provide a heat exchange device, which can improve the overall strength of the heat exchange device and reduce the production cost of the heat exchange device.

A second object of the present utility model is to provide a battery pack including a tray, the heat exchanging device described in the above embodiments, and a reinforcing plate.

The present utility model has three objects to propose a vehicle comprising the battery pack described in the above embodiments.

According to an embodiment of the first aspect of the present utility model, a heat exchange device includes: the runner plate, the runner plate has runner district and non-runner district, the runner plate is limited the runner, the runner is located the runner district, the non-runner district is equipped with at least one connecting piece and at least one reinforcing part, the connecting piece is located the one side surface of the thickness direction of runner plate, the reinforcing part is adjacent the connecting piece sets up.

According to the heat exchange device provided by the embodiment of the utility model, the reinforcing part is arranged in the non-runner area of the runner plate, the reinforcing part is arranged on the runner plate in a false runner mode, the structural strength of the area of the runner plate provided with the reinforcing part is improved while the supporting performance of the runner plate is improved, and the rigidity of the runner plate is improved, so that the bending resistance and the pressure resistance of the heat exchange device are improved.

In some embodiments, the reinforcement portion protrudes in a thickness direction of the flow channel plate from one side surface of the flow channel plate in the thickness direction.

In some embodiments, the flow field plate comprises: the first runner plate and the second runner plate are arranged along the thickness direction of the runner plate, the first runner plate and the second runner plate define the runner, the reinforcing part is arranged on the first runner plate, and the reinforcing part is formed by protruding one side, adjacent to the second runner plate, of the first runner plate to the side away from the second runner plate.

In some embodiments, the reinforcement portion and the flow passage are each formed by protruding the first flow passage plate toward a side of the first flow passage plate away from the second flow passage plate in a thickness direction of the flow passage plate.

In some embodiments, the reinforcement portion has at least one groove formed thereon, the groove being concavely formed toward the flow field plate in a thickness direction of the flow field plate.

In some embodiments, the plurality of grooves are arranged at intervals along the length direction of the reinforcing portion.

In some embodiments, the flow channel plate has at least one first avoidance region, the reinforcement portion includes a plurality of sub-reinforcement portions, the plurality of sub-reinforcement portions are respectively located at two sides of the first avoidance region, and the connecting member is located at the first avoidance region.

In some embodiments, at least one notch is formed on one side of the reinforcement portion in the width direction to form a second avoidance area, and the connecting member is located at the second avoidance area.

In some embodiments, the plurality of reinforcing parts are arranged at intervals along the length direction of the runner plate, the plurality of runner areas are arranged at intervals along the length direction of the runner plate, and the plurality of runner areas are provided with the reinforcing parts along at least one side of the length direction of the runner plate.

In some embodiments, the flow channel comprises: an inlet flow channel, an outlet flow channel and at least one communication flow channel. The inlet runner and the outlet runner are respectively positioned at two sides of the runner plate in the width direction, the inlet runner and the outlet runner extend along the length direction of the runner plate, the communication runner is connected between the inlet runner and the outlet runner, the inlet runner, the outlet runner and the communication runner are all positioned in the runner area, and the reinforcing part is positioned at one side of the runner area corresponding to the communication runner along the length direction of the runner plate.

In some embodiments, the plurality of communication channels are arranged at intervals along the length direction of the flow channel plate, the plurality of communication channels are connected between the inlet flow channel and the outlet flow channel in parallel, and the communication channels are positioned in the flow channel area; the corresponding runner area of each communication runner is provided with the reinforcing part along at least one side of the length direction of the runner plate.

According to a battery pack of an embodiment of the second aspect of the present utility model, the battery pack includes: the tray is suitable for accommodating the battery cell and the heat exchange device, wherein the heat exchange device is the heat exchange device according to the embodiment of the first aspect of the utility model, and the reinforcing part of the runner plate of the heat exchange device is arranged on one side of the runner plate away from the battery cell.

In some embodiments, the battery pack further comprises: and the reinforcing plate is connected to one side, far away from the tray, of the runner plate.

In some embodiments, the reinforcement plate comprises: the first reinforcing plate extends along the length direction of the runner plate, the second reinforcing plate extends along the width direction of the runner plate, and the second reinforcing plate is connected between two adjacent first reinforcing plates.

In some embodiments, the second reinforcing plates are a plurality of, and the second reinforcing plates are disposed at intervals along the length direction of the flow channel plate, and are opposite to the reinforcing parts of the flow channel plate.

In some embodiments, the flow field plate is bonded to the reinforcing plate.

A vehicle according to an embodiment of a third aspect of the present utility model includes a battery pack according to the embodiment of the above second aspect of the present utility model.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

Fig. 1 is a schematic view of an assembly of a heat exchange device, a tray and a reinforcing plate according to an embodiment of the present utility model.

Fig. 2 is a schematic view of a flow field plate according to an embodiment of the utility model.

Fig. 3 is an enlarged schematic view of the P region in fig. 2.

Reference numerals:

1. A heat exchange device; 2. a tray; 3. a reinforcing plate; 4. a first reinforcing plate; 5. a second reinforcing plate;

10. A flow channel plate; 11. a flow passage region; 111. a flow passage; 1111. an inlet flow passage; 1112. a communicating flow passage; 1113. an outlet flow passage; 12. a non-flow path region; 121. a reinforcing part; 1211. a groove; 1212. a first avoidance zone; 1213. a sub-reinforcement portion; 1214. a second avoidance zone; 13. a connecting piece;

A. a thickness direction; B. a length direction; C. in the width direction.

Detailed Description

Embodiments of the present utility model will be described in detail below, and the embodiments described with reference to the accompanying drawings are exemplary, and a heat exchange device 1 according to an embodiment of the present utility model will be described below with reference to fig. 1 to 3, the heat exchange device 1 including: the flow field plate 10. The flow field plate 10 has a thickness direction a, a length direction B, and a width direction C.

Specifically, as shown in fig. 1 to 2, the flow field plate 10 has a flow field region 11 and a non-flow field region 12, the flow field plate 10 defines a flow field 111, the flow field 111 is located in the flow field region 11, the non-flow field region 12 is provided with at least one connecting member 13 and at least one reinforcing portion 121, the connecting member 13 is located on one side surface in the thickness direction a of the flow field plate 10, and the reinforcing portion 121 is disposed adjacent to the connecting member 13.

Referring to fig. 1-3, in the present embodiment, the runner plate 10 is disposed at the bottom of the battery pack, the runner plate 10 defines a runner 111 inside, the heat exchange medium flows in the runner 111, and when the runner plate 10 is disposed inside the tray 2, the runner plate 10 is adapted to abut against the battery cell to exchange heat generated by the battery cell. The portion where the flow channel 111 is provided is the flow channel region 11 of the flow channel plate 10, and the non-flow channel region 12 is not provided with the flow channel 111 for forming the reinforcing portion 121 and the attachment of the connection member 13. That is, the reinforcing portion 121 is provided in the non-flow path region 12, and serves to form a dummy flow path in the non-flow path region 12, in which no heat exchange medium flows. I.e. the reinforcement 121 is provided on the flow field plate 10 in the form of a dummy flow field. The flow field plate 10 may be a heat exchanger plate. The flow channel region 11 and the non-flow channel region 12 are arranged at intervals along the length direction B of the flow channel plate 10, the non-flow channel region 12 extends along the width direction C of the flow channel plate 10, at least one reinforcing part 121 is arranged on one side wall of the flow channel plate 10 in the thickness direction a, the reinforcing part 121 and the connecting piece 13 are arranged in the non-flow channel region 12 along the width direction C of the flow channel plate 10, and the connecting piece 13 is arranged in the reinforcing part 121 or is arranged in the non-flow channel region 12 adjacent to the reinforcing part 121. The connecting piece 13 is used for connecting the runner plate 10 with other components to realize the installation and the fixation of the runner plate 10. The other side surface in the thickness direction a of the flow field plate 10 is adapted to be connected to the reinforcing plate 3.

According to the heat exchange device 1 of the embodiment of the utility model, the reinforcing part 121 is arranged in the non-runner area 12 of the runner plate 10, the reinforcing part 121 is arranged on the runner plate 10 in a false runner mode, the structural strength of the area of the runner plate 10 provided with the reinforcing part 121 is improved while the supporting performance of the runner plate 10 is improved, and the rigidity of the runner plate 10 is improved, so that the bending resistance and the pressure resistance of the heat exchange device 1 are improved.

According to some embodiments of the present utility model, as shown in fig. 2, the reinforcing part 121 protrudes from one side surface of the flow field plate 10 in the thickness direction a of the flow field plate 10. For example, the flow channel plate 10 defines the flow channel 111 therein, and the side wall of the flow channel 111 protrudes from one side surface of the flow channel plate 10 in the thickness direction a in a direction away from the center of the flow channel 111. When the flow channel plate 10 is mounted, the reinforcing part 121 may be glued to the top surface of the reinforcing part 121 of the flow channel plate 10, so that the flow channel plate 10 may be connected to the reinforcing plate 3 of the battery pack. The reinforcing part 121 may be integrally formed with the flow field plate 10 and formed by press forming a portion of the flow field plate 10 other than the flow field region 12, so as to ensure structural strength of the flow field plate 10, simplify the processing steps of the flow field plate 10, and improve assembly efficiency of the flow field plate 10. Therefore, the reinforcing part 121 protrudes from the surface of one side of the flow channel plate 10 in the thickness direction a of the flow channel plate 10, no heat exchange medium flows in the reinforcing part 121, and the structural strength of the non-flow channel region 12 provided with the reinforcing part 121 and the arc root of the flow channel 111 can be increased, so that the cracking risk of the arc root of the flow channel 111 is reduced. In addition, when the flow passage plate 10 and the reinforcing plate 3 are assembled, the gap between the flow passage plate 10 and the reinforcing plate 3 can be reduced, so that the reliability and stability of the installation between the flow passage plate 10 and the reinforcing plate 3 are higher, the structural strength of the flow passage plate 10 is improved, and the production cost of the heat exchange device 1 is reduced.

According to some embodiments of the present utility model, as shown in fig. 1, a flow field plate 10 includes: the first flow path plate and the second flow path plate are arranged along the thickness direction A of the flow path plate 10, the first flow path plate and the second flow path plate define a flow path, the reinforcing part 121 is arranged on the first flow path plate, and the reinforcing part 121 is formed by protruding from one side of the first flow path plate adjacent to the second flow path plate to one side far away from the second flow path plate. The battery pack is internally provided with an electric core, and the runner plate 10 is arranged at the bottom of the battery pack and is abutted against the electric core. The first flow channel plate and the second flow channel plate are oppositely arranged along the thickness direction A of the flow channel plate 10, the first flow channel plate and the second flow channel plate are connected to form the flow channel plate 10, the first flow channel plate is positioned on one side of the flow channel plate 10 away from the battery cell along the thickness direction A, and the second flow channel plate is positioned on one side of the flow channel plate 10 adjacent to the battery cell along the thickness direction A. A cavity, that is, a flow channel 111 is formed between the first flow channel plate and the second flow channel plate, and the reinforcing portion 121 is formed by a portion of the first flow channel plate protruding from a side of the first flow channel plate adjacent to the second flow channel plate toward a side away from the second flow channel plate along the thickness direction a of the flow channel plate 10. Thus, the first flow channel plate and the second flow channel plate define the flow channel 111, the first flow channel plate and the second flow channel plate are separately designed and then connected with each other, which is beneficial to reducing the processing difficulty of the flow channel plate 10, improving the structural strength of the flow channel plate 10, and the reinforcing part 121 on the first flow channel plate along the thickness direction a towards the side far away from the first flow channel plate can improve the supporting performance of the flow channel plate 10, and reducing the possibility of the flow channel plate 10 being extruded and deformed.

According to some embodiments of the present utility model, as shown in fig. 1, the reinforcing part 121 and the flow channel 111 are each formed by protruding the first flow channel plate in the thickness direction a of the flow channel plate 10 toward the side away from the second flow channel plate, i.e., both the reinforcing part 121 and the flow channel 111 protrude in the thickness direction a of the flow channel plate 10 toward the side away from the cell. That is, the flow path region 11 for forming the flow path 111 is protruded on the first flow path plate toward the side away from the second flow path plate in the thickness direction a, and the reinforcing portion 121 formed on the non-flow path region 12 is protruded on the first flow path plate toward the side away from the second flow path plate in the thickness direction a, so that the flow path plate 10 is formed in cooperation with the second flow path plate on the side of the first flow path plate adjacent to the second flow path plate to form the flow path 111, so that the reinforcing portion 121 forms a false flow path on the side of the first flow path plate adjacent to the second flow path plate. Thereby, the reinforcing part 121 and the runner 111 are protruded along the thickness direction a of the runner plate 10 toward the side of the first runner plate away from the second runner plate, so that the gap between the runner plate 10 and the reinforcing plate 3 can be reduced, the structural strength of the runner plate 10 is improved, the glue consumption between the runner plate 10 and the reinforcing plate 3 can be reduced, and the overall production cost of the runner plate 10 is reduced. In this embodiment, the reinforcing portion 121 is hollow, specifically, the first flow channel plate is convexly bent toward a side away from the second flow channel plate, and thus a hollow structure in which the flow channel 111 is mated with the second flow channel plate is formed at a side of the first flow channel plate adjacent to the second flow channel plate. The hollow structure of the reinforcement 121 corresponds to the formation of the flow passage 111, but is free of cooling medium. The above arrangement reduces the weight of the flow channel plate 10 and reduces the manufacturing cost on the basis of improving the structural strength of the flow channel plate 10. In addition, in other embodiments, the reinforcement portion 121 has a solid structure, and the first flow channel plate protrudes toward a side away from the second flow channel plate. This embodiment can effectively improve the strength of the flow field plate 10.

According to some embodiments of the present utility model, referring to fig. 2 and 3, at least one groove 1211 is formed on the reinforcement part 121, and the groove 1211 is concavely formed toward the flow field plate 10 in the thickness direction a of the flow field plate 10. For example, a groove 1211 is formed on the reinforcing portion 121, and is recessed from the side of the first flow passage plate away from the second flow passage plate toward the second flow passage plate in the thickness direction a of the flow passage plate 10, and the bottom of the groove 1211 is stopped against the second flow passage plate. The groove 1211 is located on a widthwise middle line of the reinforcement 121, a length of the groove 1211 in the widthwise direction of the reinforcement 121 is smaller than a length of the reinforcement 121 in the widthwise direction, a length of the groove 1211 in the lengthwise direction of the reinforcement 121 is smaller than a length of the reinforcement 121 in the lengthwise direction, and both ends of the groove 1211 in the lengthwise direction of the reinforcement 121 are arc-shaped. Thus, the grooves 1211 provided on the reinforcement portion 121 can reduce the bulge phenomenon at the joint caused by the brazing gas, ensure the connection reliability of the first flow channel plate and the second flow channel plate, effectively improve the structural strength of the flow channel plate 10, and increase the support of the flow channel plate 10 to the battery cell and the like.

According to some embodiments of the present utility model, the plurality of grooves 1211 is provided, and the plurality of grooves 1211 are arranged at intervals along the length direction B of the reinforcement portion 121. Therefore, the plurality of grooves 1211 on the reinforcing portion 121 can further reduce the bulge phenomenon at the joint caused by the brazing gas production, reduce the production difficulty of the flow channel plate 10, and improve the structural strength of the flow channel plate 10.

According to some embodiments of the present utility model, referring to fig. 2, the flow field plate 10 has at least one first avoidance region 1212, the reinforcement 121 includes a plurality of sub-reinforcements 1213, the plurality of sub-reinforcements 1213 are respectively located at both sides of the first avoidance region 1212, and the connection member 13 is located at the first avoidance region 1212. The first relief region 1212 divides the reinforcement portion 121 into a plurality of sub-reinforcement portions 1213 located on both sides of the connection member 13, respectively. That is, the first avoidance regions 1212 and the sub-reinforcement portions 1213 are arranged at intervals along the longitudinal direction of the reinforcement portion 121, and the first avoidance regions 1212 are located at one end of the sub-reinforcement portions 1213 along the longitudinal direction of the reinforcement portion 121. Therefore, the first avoidance area 1212 is used for arranging the connecting piece 13, the connecting piece 13 is used for connecting the flow channel plate 10 with other components, the height of the first avoidance area 1212 along the thickness direction A of the flow channel plate 10 is lower than the height of the reinforcing part 121 along the thickness direction A of the flow channel plate 10, a space is reserved for arranging the connecting piece 13, interference between the connecting piece 13 and other components can be prevented, occupation of the space of the flow channel plate 10 in the thickness direction A is reduced, and therefore when the flow channel plate 10 is applied to the inside of a battery pack, the utilization rate of the internal space of the battery pack is improved, the assembly difficulty of the heat exchange device 1 is reduced, and the assembly efficiency of the heat exchange device 1 is improved.

According to some embodiments of the present utility model, referring to fig. 2, the reinforcement portion 121 is formed with at least one notch on one side in the width direction C to form a second relief area 1214, and the connection member 13 is located at the second relief area 1214. In this case, the reinforcing portion 121 may be formed as a single piece, and the notch may be formed in one side wall of the reinforcing portion 121 in the width direction. The second relief region 1214 is located on the reinforcement portion 121 at a notch of one side of the groove 1211 in the width direction of the reinforcement portion 121, that is, the second relief region 1214 penetrates a sidewall of one side of the groove 1211 in the width direction of the reinforcement portion 121. The position of the groove 1211 on the reinforcing portion 121 may be selected according to the specific embodiment, so that the convenience in arranging the connecting member 13 on the reinforcing portion 121 is improved, and the influence on the installation of other components and the flow channel plate 10 is reduced. Therefore, the connecting piece 13 is located in the second avoidance area 1214, and the height of the second avoidance area 1214 along the thickness direction a of the flow channel plate 10 is lower than the height of the reinforcing part 121 along the thickness direction a of the flow channel plate 10, so that a space is reserved for the arrangement of the connecting piece 13, interference between the connecting piece 13 and other components is prevented, the space utilization rate of the flow channel plate 10 can be effectively improved, and the assembly difficulty of the heat exchange device 1 is reduced.

In some embodiments, as shown in fig. 2, the reinforcing parts 121 are plural, the plural reinforcing parts 121 are disposed at intervals along the length direction B of the flow channel plate 10, the flow channel regions 11 are plural, the plural flow channel regions 11 are disposed at intervals along the length direction B of the flow channel plate 10, and the flow channel regions 11 are provided with the reinforcing parts 121 along at least one side of the length direction B of the flow channel plate 10. The reinforcing parts 121 extend in the width direction C of the flow field plate 10, the plurality of reinforcing parts 121 are arranged on the flow field plate 10 at intervals in the length direction B of the flow field plate 10, and the plurality of flow field regions 11 and the plurality of reinforcing parts 121 are arranged at intervals in the length direction B of the flow field plate 10. Therefore, the structure layout of the flow channel plate 10 can be more reasonable due to the reinforcing part 121 arranged on at least one side of the flow channel region 11 along the length direction B of the flow channel plate 10, and the structural strength distribution of the flow channel plate 10 can be uniform due to the plurality of reinforcing parts 121 arranged at intervals along the length direction B of the flow channel plate 10, so that the overall structural strength of the flow channel plate 10 can be improved.

According to some embodiments of the utility model, in conjunction with fig. 2, the flow channel 111 comprises: the inlet runner 1111, the outlet runner 1113 and at least one communication runner 1112, the outlet runner 1113 and the inlet runner 1111 are respectively located at two sides of the width direction C of the runner plate 10, the inlet runner 1111 and the outlet runner 1113 extend along the length direction B of the runner plate 10, the communication runner 1112 is connected between the inlet runner 1111 and the outlet runner 1113, the inlet runner 1111, the outlet runner 1113 and the communication runner 1112 are all located in the runner area 11, and the reinforcing part 121 is located at one side of the runner area 11 corresponding to the communication runner 1112 along the length direction B of the runner plate 10.

For example, the flow channel plate 10 may be a heat exchange plate for exchanging heat to the battery cell, the inlet flow channel 1111, the communication flow channel 1112 and the outlet flow channel 1113 are communicated, the inlet flow channel 1111 is used for inputting a heat exchange medium, the heat exchange medium is input into the communication flow channel 1112 through the inlet flow channel 1111, the heat exchange medium flows through the communication flow channel 1112 and then is output from the flow channel plate 10 through the outlet flow channel 1113, and the heat exchange medium flowing in the flow channel plate 10 can play a role in adjusting the temperature of the battery cell. When the temperature of the battery pack is too high, a heat exchange medium with lower temperature is introduced into the flow passage plate 10 to reduce the temperature of the battery pack, and when the temperature of the battery pack is too low, a heat exchange medium with higher temperature is introduced into the flow passage plate 10 to increase the temperature of the battery pack. The communication flow channel 1112 is provided in the flow channel region 11 of the flow channel plate 10, and the reinforcing portion 121 is provided in the non-flow channel region 12 on one side of the communication flow channel 1112 in the length direction B of the flow channel plate 10.

Therefore, the heat exchange medium can be introduced into the flow channel plate 10 through the arrangement of the inlet flow channel 1111, the outlet flow channel 1113 and the communication flow channel 1112, the heat exchange medium flowing in the flow channel plate 10 can realize the function of adjusting the internal temperature of the battery pack, the heat exchange efficiency of the flow channel plate 10 is improved, the structural strength of the flow channel plate 10 can be enhanced by the reinforcing plate 3 positioned at one side of the communication flow channel 1112 along the length direction B of the flow channel plate 10, and a certain protection function is played on the arc edge of the communication flow channel 1112.

According to some embodiments of the present utility model, referring to fig. 2, the plurality of communication channels 1112 are provided, the plurality of communication channels 1112 are arranged at intervals along the length direction B of the flow channel plate 10, the plurality of communication channels 1112 are connected in parallel between the inlet channel 1111 and the outlet channel 1113, the communication channels 1112 are located in the flow channel regions 11, and the flow channel regions 11 corresponding to each communication channel 1112 are provided with the reinforcing portion 121 along at least one side of the length direction B of the flow channel plate 10. The plurality of communication channels 1112 are connected in parallel between the inlet channel 1111 and the outlet channel 1113, so that heat exchange medium can flow into the plurality of communication channels 1112 simultaneously, the plurality of communication channels 1112 can work simultaneously, the heat exchange efficiency of the flow channel plate 10 is effectively improved, the reinforcing part 121 is positioned on one side of the communication channels 1112 along the length direction B of the flow channel plate 10, the reinforcing part 121 can play a certain protection role on the communication channels 1112, the communication channels 1112 can be prevented from being extruded from the thickness direction A, the structural strength of the flow channel plate 10 is enhanced, and the service life of the flow channel plate 10 is prolonged.

A battery pack according to an embodiment of the second aspect of the present utility model, as shown in fig. 1, includes: the tray 2, the tray 2 is suitable for holding electric core and heat exchanger 1, and heat exchanger 1 is the heat exchanger 1 according to the above-mentioned first aspect of the embodiment of the present utility model, and heat exchanger 1 locates the bottom of tray 2, and the reinforcing part 121 of runner plate 10 of heat exchanger 1 locates the runner plate 10 and is kept away from the electric core one side for realizing the heat transfer to electric core, supports the electric core simultaneously, improves the structural strength of battery package.

According to the battery pack disclosed by the embodiment of the utility model, the battery cells are arranged in the tray 2, the flow channel plate 10 is used for being attached to the bottom of the tray 2 so as to conduct large-area heat exchange on the battery cells in the tray 2, the heat is taken away by introducing a heat exchange medium with lower temperature into the communication flow channels 1112 arranged on the flow channel plate 10 so as to play a role in reducing the temperature of the battery cells in the tray 2, and the heat exchange medium with higher temperature is introduced into the communication flow channels 1112 arranged on the flow channel plate 10 so as to play a role in raising the temperature of the battery cells in the tray 2. The reinforcing part 121 is arranged on one side of the flow channel plate 10 away from the battery core along the thickness direction A, one side of the flow channel plate 10 away from the tray 2 along the thickness direction A is connected with the reinforcing plate 3,

According to the battery pack of the embodiment of the utility model, the battery pack further comprises: and the reinforcing plate 3 is connected to one side of the flow channel plate 10 away from the battery cell. The reinforcing plate 3 is opposite to the flow channel plate 10 along the thickness direction A of the flow channel plate 10, the reinforcing plate 2 and the flow channel plate 10 are connected through bonding, the reinforcing plate 3 can protect the flow channel plate 10, the extrusion resistance and the impact resistance of the heat exchange device 1 on one side, away from the tray 2, of the flow channel plate 10 along the thickness direction A are effectively improved, the service life of the heat exchange device 1 is prolonged, and the overall structural strength of the battery pack is improved.

In some embodiments, the stiffener plate 3 comprises: the first reinforcing plate 4 and the second reinforcing plate 5, the first reinforcing plate 4 extends along the length direction B of the flow path plate 10, the second reinforcing plate 5 extends along the width direction C of the flow path plate 10, and the second reinforcing plate 5 is connected between two adjacent first reinforcing plates 4. The second reinforcing plate 5 is connected with the first reinforcing plate 4 along the both ends tip of runner board 10 width direction C respectively, and first reinforcing plate 4 and second reinforcing plate 5 can realize fixed connection through welded mode, and first reinforcing plate 4 can be two, and two first reinforcing plates 4 are located runner board 10 width direction C's both sides respectively. From this, the setting of first reinforcing plate 4 can promote the structural strength of heat transfer device 1 along runner plate 10's width direction C both sides, also be convenient for form the support to second reinforcing plate 5, second reinforcing plate 5 connects and is favorable to promoting the structural strength of reinforcing plate 3 between two adjacent first reinforcing plates 4, promote reinforcing plate 3 at the ability of width direction C resistance to deformation, and then promote the guard action of reinforcing plate 3 to runner plate 10, promote the anti extrusion ability of runner plate 10 in width direction C both sides, promote the structural strength of heat transfer device 1.

In some embodiments, the plurality of second reinforcing plates 5 are provided, and the plurality of second reinforcing plates 5 are disposed at intervals along the length direction B of the flow channel plate 10, and the second reinforcing plates 5 are opposite to the reinforcing portions 121 of the flow channel plate 10. A plurality of rectangular through holes are formed between the first reinforcing plate 4 and the second reinforcing plate 5 in a surrounding manner, the rectangular through holes are arranged opposite to the flow passage area 11 of the flow passage plate 10 along the thickness direction A of the flow passage plate 10, and the second reinforcing plate 5 and the reinforcing part 121 of the flow passage plate 10 are arranged opposite to each other along the thickness direction A of the flow passage plate 10 so as to be convenient to stop against the reinforcing part 121 of the flow passage plate 10. Therefore, the second reinforcing plates 5 are arranged at intervals along the length direction B of the flow channel plate 10, so that the stress distribution of the reinforcing plates 3 is uniform, the overall structural strength of the reinforcing plates 3 is improved, the second reinforcing plates 5 and the reinforcing parts 121 of the flow channel plate 10 are oppositely arranged, the protection effect of the second reinforcing plates 5 on the reinforcing parts 121 of the flow channel plate 10 can be improved, the extrusion resistance and deformation resistance of the flow channel plate 1O on one side far away from the tray 2 along the thickness direction A are improved, and the service life of the heat exchange device 1 is prolonged.

According to the battery pack of the embodiment of the present utility model, the flow path plate 10 is bonded to the reinforcing plate 3. This is because the thickness of the flow field plate 10 is generally small, possibly as low as 1mm, and if the flow field plate 10 and the reinforcing plate 3 are welded together by welding, the flow field plate 10 is easily welded through during the welding process, resulting in failure of the flow field plate 10. If the runner plate 10 and the reinforcing plate 3 are welded together by adopting a brazing mode, when the runner plate 10 is assembled on the tray 2, friction stir welding is required in the area where the runner plate 10 is overlapped with the frame of the tray 2, and the reinforcing plate 3 shields the friction stir welding area, so that the welding is inconvenient and the welding efficiency is affected. Therefore, glue is arranged on the surface of the reinforcing part 121 of the flow channel plate 10 to bond the flow channel plate 10 and the reinforcing plate 3 together, and the glue is arranged between the flow channel plate 10 and the reinforcing plate 3, so that the operation difficulty can be effectively reduced, the assembly efficiency of the battery pack is improved, and the production cost of the battery pack is reduced.

A vehicle according to an embodiment of a third aspect of the present utility model includes a battery pack according to the embodiment of the above second aspect of the present utility model.

According to the vehicle provided by the embodiment of the utility model, the battery pack in the embodiment is used, so that the production cost of the battery pack is reduced and the safety performance of the vehicle is improved while the heat exchange performance and the structural strength of the battery pack are ensured.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

In the description of the utility model, a "first feature" or "second feature" may include one or more of such features. In the description of the present utility model, "plurality" means two or more. In the description of the utility model, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by another feature therebetween. In the description of the utility model, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (17)

1. A heat exchange device, comprising:

The runner plate, the runner plate has runner district and non-runner district, the runner plate is limited the runner, the runner is located the runner district, the non-runner district is equipped with at least one connecting piece and at least one reinforcing part, the connecting piece is located the one side surface of the thickness direction of runner plate, the reinforcing part is adjacent the connecting piece sets up.

2. The heat exchange device according to claim 1, wherein the reinforcing portion protrudes in a thickness direction of the flow passage plate beyond a side surface of the flow passage plate in the thickness direction.

3. The heat exchange device of claim 2 wherein the flow field plate comprises: a first flow passage plate and a second flow passage plate disposed in a thickness direction of the flow passage plate, the first flow passage plate and the second flow passage plate defining the flow passage,

The reinforcing part is arranged on the first runner plate, and is formed by protruding one side, close to the second runner plate, of the first runner plate towards one side, far away from the second runner plate.

4. A heat exchange device according to claim 3, wherein the reinforcing portion and the flow passage are each formed by bulging the first flow passage plate in a thickness direction of the flow passage plate toward a side away from the second flow passage plate.

5. The heat exchange device according to claim 1, wherein the reinforcing portion is formed with at least one groove formed concavely toward the flow passage plate in a thickness direction thereof.

6. The heat exchange device of claim 5 wherein the plurality of grooves are spaced apart along the length of the reinforcement.

7. The heat exchange device of claim 1 wherein the flow field plate has at least one first keep-away zone, the reinforcement comprising a plurality of sub-reinforcements, the plurality of sub-reinforcements being located on either side of the first keep-away zone, respectively, and the connector being located at the first keep-away zone.

8. The heat exchange device according to claim 1, wherein the reinforcing portion is formed with at least one notch on one side in a width direction to constitute a second escape area, and the connection member is located at the second escape area.

9. The heat exchange device of claim 1, wherein the plurality of reinforcing portions are provided at intervals along the length direction of the flow passage plate,

The flow passage areas are arranged at intervals along the length direction of the flow passage plate, and the reinforcing parts are arranged on at least one side of the flow passage area along the length direction of the flow passage plate.

10. The heat exchange device according to any one of claims 1 to 9, wherein the flow passage comprises:

an inlet flow passage;

The outlet flow channel and the inlet flow channel are respectively positioned at two sides of the flow channel plate in the width direction, and extend along the length direction of the flow channel plate;

The at least one communication runner, the communication runner intercommunication is in the import runner with between the export runner, import runner, export runner and the communication runner all is located in the runner district, the enhancement portion is located the intercommunication runner corresponds the runner district is followed the length direction's of runner board one side.

11. The heat exchange device according to claim 10, wherein the plurality of communication flow passages are provided in plural, the plurality of communication flow passages being provided at intervals along the length direction of the flow passage plate, the plurality of communication flow passages being connected in parallel between the inlet flow passage and the outlet flow passage, the communication flow passages being located in the flow passage area;

The corresponding runner area of each communication runner is provided with the reinforcing part along at least one side of the length direction of the runner plate.

12. A battery pack, comprising:

A tray adapted to accommodate a battery cell and a heat exchange device according to any one of claims 1-11, the reinforcement of the flow conduit plate of the heat exchange device being provided at a side of the flow conduit plate remote from the battery cell.

13. The battery pack of claim 12, wherein the battery pack further comprises: and the reinforcing plate is connected to one side, far away from the tray, of the runner plate.

14. The battery pack of claim 13, wherein the reinforcement plate comprises: the first reinforcing plate extends along the length direction of the runner plate, the second reinforcing plate extends along the width direction of the runner plate, and the second reinforcing plate is connected between two adjacent first reinforcing plates.

15. The battery pack according to claim 14, wherein the plurality of second reinforcing plates are provided at intervals along the length direction of the flow path plate, the second reinforcing plates being opposed to the reinforcing portions of the flow path plate.

16. The battery pack of claim 13, wherein the flow field plate is bonded to the reinforcing plate.

17. A vehicle comprising a battery pack according to any one of claims 12-16.