CN208539062U - Thermal management device of battery - Google Patents

Abstract

The utility model provides a kind of thermal management device of battery, including fluid reservoir, the pump housing, heating cooler, multiple battery cases, pipeline and battery management module；Each battery case includes battery modules and the heat exchanger plate for being connected to battery modules surface；Heat-conducting medium in fluid reservoir pressurizes under the action of the pump housing and followed by heating cooler, heat exchanger plate and finally returns that in fluid reservoir through pipeline；Battery management module includes multiple control modules for being respectively used to measure the temperature sensor of multiple battery modules temperature informations and be electrically connected with the pump housing, heating cooler, temperature sensor respectively, and whether control module receives and started according to the information control pump housing of temperature sensor acquisition and heating or refrigeration of the heating cooler to heat-conducting medium.Thermal management device of battery provided by the utility model, structure is relatively easy, safe and reliable and even temperature effect is good.

Description

Thermal management device of battery

[technical field]

The utility model relates to power battery field more particularly to a kind of thermal management device of batteries.

[background technique]

With reaching its maturity for lithium battery technology, lithium battery is increasingly being applied to the various aspects of life, especially Electric automobiles.The power battery of electric vehicle can generate a large amount of heat during high-power charge and discharge, in power battery If heat do not handle or handle and be not good at largely gathering, cause the temperature of power battery to increase.Temperature of powered cell liter Height, gently then influence battery efficiency for charge-discharge, shorten battery service life, it is heavy then cause the spontaneous combustion of battery, crisis driving people The life security of member.The common type of cooling of current driving force battery has air-cooled with two kinds of liquid cooling: air-cooled usual structure is simple, but Temp effect is poor, battery with two side terminals is poor；Liquid-cooling heat radiation effect is good, average temperature performance is good, but structure is complicated and occupied space, influences electricity The energy density in pond.

In addition, the efficiency for charge-discharge of lithium battery is lower, and capacitance of storage becomes smaller, greatly under cold extreme weather conditions Affect the course continuation mileage and battery life of electric vehicle.In this case add it is generally necessary to carry out safety equilibrium to lithium battery Heat builds a suitable working environment for lithium battery.Different it is with freezing usually to belong to the heating of lithium battery at present System, so that the structure more sophisticated of lithium battery, and influence the energy density of lithium battery.

In addition, the liquid cooling plate of liquid cooling structure is usually to be provided in light weight board for the logical of heat-conducting medium circulation at present Liquid channel, this cooling board production technology complexity, heavier mass, is unfavorable for saving production cost.

In consideration of it, it is really necessary to provide the new thermal management device of battery of one kind to overcome drawbacks described above.

[utility model content]

A kind of the purpose of the utility model is to provide structures good battery of relatively easy, safe and reliable and even temperature effect Heat management device.

To achieve the goals above, the utility model provides a kind of thermal management device of battery, it is characterised in that: including liquid storage It is tank, the pump housing, heating cooler, multiple battery cases, end to end and be sequentially communicated the fluid reservoir, the pump housing, the heating The pipeline and battery management module of refrigerator and the multiple battery case；Each battery case includes battery modules and is connected to The heat exchanger plate on the battery modules surface, the battery modules include the multiple single batteries being arranged side by side, the heat exchange Plate includes multiple multiple heat exchanging fins being sequentially communicated, and each heat exchanging fin is corresponding with the surface of a single battery and abuts； Heat-conducting medium in the fluid reservoir pressurizes under the action of the pump housing and freezes through the pipeline followed by the heating Device, the heat exchanger plate simultaneously finally return that in the fluid reservoir；The battery management module include it is multiple be respectively used to measurement institute State multiple battery modules temperature informations temperature sensor and respectively with the pump housing, the heating cooler, the temperature The control module of sensor electrical connection, the control module receive and according to the information controls that the temperature sensor acquires Whether the pump housing starts and heating or refrigeration of the heating cooler to heat-conducting medium.

In a preferred embodiment, when the temperature that any one temperature sensor measures is preset lower than the control module The first temperature when, the control module controls the pump housing starting and the heating cooler heats；When any one temperature passes When the temperature that sensor measures is higher than the control module preset second temperature, the control module control the pump housing starting and The heating cooler refrigeration；When the temperature that all temperature sensors measure be in preset first temperature and second temperature it Between when, the pump housing does not work, and the heating cooler does not work.

In a preferred embodiment, first temperature is -20 DEG C, and the second temperature is 45 DEG C.

In a preferred embodiment, inlet tube and outlet tube are provided on the heat exchanger plate, the inlet tube is logical It crosses the pipeline to be connected to the heating cooler, the outlet tube is connected to by the pipeline with the fluid reservoir.

In a preferred embodiment, the pipeline includes multiple supervisors and two compound tubes, each compound tube include One main pipe and the multiple branch pipes for being fixedly connected on and being connected to described main pipe one end；Wherein it is described supervisor for the fluid reservoir with The connection between connection and the pump housing and the heating cooler between the pump housing；Multiple branch pipes of each compound tube One end far from the main pipe corresponds and is connected to the inlet of the multiple battery case or inlet respectively, each combination The one end of the main pipe of pipe far from the multiple branch pipe is connected to the heating cooler or the fluid reservoir.

In a preferred embodiment, the heat exchanger plate further includes for fixing and being connected to the multiple heat exchanging fin Fixinig plate；Each heat exchanging fin include be arranged side by side and one end connection the first siphunculus and the second siphunculus, first siphunculus It is flat hollow pipe with second siphunculus；The fixinig plate offers multiple communicating passages and is located at the multiple connection Two communications ports at channel both ends, the both ends of each communicating passage respectively with a heat exchanging fin in two neighboring heat exchanging fin First passage and another heat exchanging fin second channel it is corresponding and be connected to, described two communications ports respectively with it is the multiple First passage and second channel of the heat exchanging fin of two sides far from the communicating passage are corresponding in heat exchanging fin and are connected to；It is described into Liquid pipe and the outlet tube are set on the fixinig plate and are respectively communicated with described two communications ports.

In a preferred embodiment, the shell includes the cabinet and case lid mutually abutted against, and the cabinet includes bottom Wall and the first side wall extended to form from the edge of the bottom wall；The heat exchanger plate is located at the bottom wall and the battery modules Between, the surface of the bottom wall convexes to form the reinforcing rib of a plurality of parallel interval, institute towards the side close to the first side wall It states the gap in reinforcing rib and the heat exchanger plate between adjacent heat exchanging fin and corresponds simultaneously clamping.

In a preferred embodiment, the battery case further includes between the heat exchanger plate and the bottom wall Multiple heat insulating mattress；Each heat insulating mattress corresponds to a heat exchanging fin and opposite both side surface is handed over the bottom wall and the heat respectively Piece is changed to abut away from the surface of the single battery.

In a preferred embodiment, the battery case further include between the heat exchanger plate and the battery modules it Between multiple heat conductive pads；Each heat conductive pad correspond to a heat exchanging fin and opposite both side surface respectively with the single battery and The heat exchanging fin is abutted close to the surface of the single battery.

In a preferred embodiment, the thermal management device of battery further include be installed on the pipeline and with it is described The flow sensor and pressure sensor of control module electrical connection, the control module are received and are surveyed according to the flow sensor The flow number of amount adjusts the pump housing output power, the pressure that the control module is received and measured according to the pressure sensor The output power of the pump housing described in power numerical definiteness.

Thermal management device of battery provided by the utility model is acquired by the control module according to the temperature sensor Temperature information control the heating cooler heat-conducting medium heated or freezes and then adjusts the temperature of the battery case Degree；By by multiple heat exchanging fin separation designs of the heat exchanger plate, not only simplifying production technology, but also the mitigation heat exchange Plate weight improves the energy density of the battery case.Thermal management device of battery provided by the utility model, structure is relatively easy, makes It is good with safe and reliable and even temperature effect.

[Detailed description of the invention]

Fig. 1 is the structural block diagram of thermal management device of battery provided by the utility model.

Fig. 2 is the explosive view of battery case in thermal management device of battery provided by the utility model.

Fig. 3 is the perspective view of heat exchanger plate in a specific embodiment of battery case shown in Fig. 2.

Fig. 4 is the perspective view of heat exchanger plate in another specific embodiment of battery case shown in FIG. 1.

[specific embodiment]

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

Please refer to Fig. 1, the utility model provides a kind of thermal management device of battery 100, including fluid reservoir 10, the pump housing 20 plus Refrigeration heat device 30, multiple battery cases 40, it is end to end and be sequentially communicated the fluid reservoir 10, the pump housing 20, the heating system The pipeline 50 and battery management module 60 of cooler 30 and the multiple battery case 40.

In the present embodiment, the fluid reservoir 10 is connected to the pump housing 20, and the heat-conducting medium in the fluid reservoir 10 is in institute It states and pressurizes under the action of the pump housing 20 and followed by the heating cooler 30, battery case 40 and finally returned that through the pipeline 50 In the fluid reservoir 10.The pump housing 20 provides the flow velocity of power and adjustable heat-conducting medium for heat-conducting medium pressurization；It is described to add Refrigeration heat device 30 can heat or cool down the heat-conducting medium into the battery case 40.The battery management module 60 includes multiple Be respectively used to measure the temperature sensor 61 of the multiple 40 temperature information of battery case and respectively with the pump housing 20, it is described plus The control module 62 that refrigeration heat device 30, the temperature sensor 61 are electrically connected, the control module 62 receive and according to the temperature The information that degree sensor 61 acquires controls whether the pump housing 20 starts and control the heating or refrigeration of the heating cooler 30, And then adjust the temperature of the battery case 40.

Specifically, when the temperature that any one temperature sensor 61 measures is lower than preset first temperature of the control module 62 When, the control module 62 controls the starting of the pump housing 20 and controls the heating cooler 30 and heats, and then to the battery Case 40 is heated；When the temperature that any one temperature sensor 61 measures is higher than the preset second temperature of the control module 62 When, the control module 62 controls the starting of the pump housing 20 and the heating cooler 30 is freezed, and then to the battery Case 40 is cooled down；When the temperature that all temperature sensors 61 measure is between preset first temperature and second temperature When, the pump housing 20 does not work, and the heating cooler 30 does not work.Further, first temperature is -20 DEG C, described Second temperature is 45 DEG C.

Further, the thermal management device of battery 60 further include be installed on the pipeline 50 and with the control module The flow sensor 63 and pressure sensor 64 of 62 electrical connections, wherein the flow sensor 63 is for measuring in the pipeline 50 The flowing velocity of heat-conducting medium, the pressure sensor 64 are used to measure the liquid pressure of heat-conducting medium.Wherein, the control mould Block 62 receives the flow number that the flow sensor 63 measures, and according to the flow number of the flow sensor 63 measurement compared with For the heat exchanger effectiveness for accurately adjusting 20 output power of the pump housing and then control heat-conducting medium and the battery case 40；It is described Control module 62 receives the pressure value that the pressure sensor 64 measures, and the output power by limiting the pump housing 20 into And prevent the liquid pressure of heat-conducting medium from exceeding the maximum pressure-bearing limit of the pipeline 50, protect the tube body 50.

Specifically, the fluid reservoir 10 is provided for the thermal management device of battery 100 and is filled for accommodating storage heat-conducting medium The heat-conducting medium of foot.The heat-conducting medium is mixed by water, antifreezing agent and additive, the antifreezing agent can for calcium chloride, One of methanol, ethyl alcohol, ethylene glycol, glycerine are a variety of.Since the freezing point of heat-conducting medium is determined by the ratio of water and antifreezing agent It is fixed, so adjusting the ratio of water and antifreezing agent in heat-conducting medium according to the limiting figure of territory of use.

In a specific embodiment of the present embodiment, the pump housing 20 passes through the tube body 50 and the fluid reservoir 10 Connection pressurizes to the heat-conducting medium in the fluid reservoir 10, provides the power flowed in the pipeline 50 for heat-conducting medium.It can With understanding, the pump housing 20 can also be directly fixed on the fluid reservoir 10 and be connected to the fluid reservoir 10.It is wherein described The pump housing 20 can directly electrically connect as the pump housing 20 with the battery case 40 and provide electric energy, can also directly connect with external power supply It connects.The pump housing 20 includes the motor of pressure gear and the drive pressure gear rotation, wherein control module 62 and the electricity Mechatronics simultaneously control the electric motor starting and revolving speed, and then control starting and the output power of the pump housing 20.

In a specific embodiment of the present embodiment, the both ends of the heating cooler 30 respectively with the pipeline 50 It is fixedly connected and is connected to, the heat-conducting medium flowed out from the press pump 20 flows into institute after the heating cooler 30 is heated or cooled It states in battery case 40, and carries out sufficient heat exchange with the battery case 40.It should be understood that the pipeline 50 can also be direct Across the heating cooler 30, the heating cooler 30 can be and then with 50 heat exchange of pipeline to the pipeline 50 In heat-conducting medium be heated or cooled.Wherein the heating cooler 30 directly can electrically connect as institute with the battery case 40 It states heating cooler 30 and electric energy is provided, can also directly be connect with external power supply.

Referring to figure 2., each battery case 40 include shell 41, the battery modules 42 that are contained in the shell 41 with And it is connected to the heat exchanger plate 43 on 42 surface of battery modules.

In one specific embodiment of the present embodiment, the shell 41 includes mutually abutting against and surrounding accommodating space 410 Cabinet 411 and case lid 412, the accommodating space 410 is for accommodating the battery modules 42 and heat exchanger plate 43.

The cabinet 411 includes bottom wall 4111 and the first side wall 4112 extended to form from the edge of the bottom wall 4111, The case lid 412 includes roof 4121 and the second sidewall 4122 extended to form from the edge of the roof 4121；Described first Side wall 4112 is connected to one end that the second sidewall 4122 deviates from the roof 4121, institute away from one end of the bottom wall 4111 State roof 4121, bottom wall 4111 and the first side wall 4112, described second side that accommodating space 410 is oppositely arranged by interval Wall 4122 surrounds.

Further, the bottom wall 4111 is in rectangle, and the roof 4121 corresponds to the bottom wall in rectangle and shape 4111；The first side wall 4112 is vertically connected at the edge of the bottom wall 4111, and the second sidewall 4122 is vertically connected at The edge of the roof 4121.

In one specific embodiment of the present embodiment, the battery modules 42 include the multiple single batteries being arranged side by side 421.Specifically, each single battery 421 is in a rectangular parallelepiped shape and including two opposite first surfaces 4211 and connection described two The first surface 4211 of the second surface 4212 of a first surface 4211, two neighboring single battery 421 is oppositely arranged.

Please with reference to Fig. 3, in the present embodiment, the heat exchanger plate 43 includes multiple being alternatively arranged and being sequentially communicated more A heat exchanging fin 431.Each heat exchanging fin 431 corresponds to the second surface 4212 of the single battery 421 in rectangle and shape, Each heat exchanging fin 431 is corresponding with a second surface 4212 in a single battery 421 and abuts.The heat exchanger plate 43 Multiple heat exchanging fins 431 be intervally arranged, facilitate the self weight for mitigating the heat exchanger plate 43, improve battery thermal management dress Set 100 energy density.

In one specific embodiment of the present embodiment, the heat exchanger plate 43 further includes described more for fixing and being connected to The fixinig plate 432 of a heat exchanging fin 431.Specifically, each heat exchanging fin 431 includes being arranged side by side and the first of one end connection is logical Pipe 4311 and the second siphunculus 4312, first siphunculus 4311 and second siphunculus 4312 are flat hollow pipe.It is described Fixinig plate 432 offers multiple communicating passages 4321 and two communications ports positioned at the multiple 4321 both ends of communicating passage 4322, the both ends of each communicating passage 4321 are logical with first of a heat exchanging fin 431 in two neighboring heat exchanging fin 431 respectively The second channel 312 of road 311 and another heat exchanging fin 431 is corresponding to be simultaneously connected to, described two communications ports 4322 respectively with institute State first passage 311 and second channel of the two sides heat exchanging fin 431 far from the communicating passage 4321 in multiple heat exchanging fins 431 312 correspond to and are connected to.

The inlet tube 4313 and outlet tube for being respectively communicated with described two communications ports 4322 are additionally provided on the fixinig plate 432 4314, heat-conducting medium is from the inlet tube 4313 followed by the first siphunculus 4311, the second siphunculus of each heat exchanging fin 431 4312 and the two neighboring heat exchanging fin 431 of connection communicating passage 4321, and flow out from the outlet tube 4314, led described in realization The heat exchange of thermal medium and heat exchanging fin 431.Due to the flat design of the first siphunculus 4311, second siphunculus 4312, pole The earth increases the contact area of the heat exchanging fin 431 and the single battery 421, is conducive to improve heat exchanger effectiveness.

Referring to figure 4., in the another embodiment of the present embodiment, the heat exchanger plate 43 further includes multiple by institute State the sequentially connected connecting tube 433 of multiple heat exchanging fins 431.Specifically, each heat exchanging fin 431 is flat tubulose knot Structure, each connecting tube 433 is " U "-shaped, and the heat exchanger plate 43 is in two sides in continuous serpentine and the multiple heat exchanging fin 431 Heat exchanging fin 431 be respectively arranged with inlet tube 4313 and outlet tube 4314 far from being correspondingly connected with 433 one end of pipe.Heat-conducting medium is certainly The inlet tube 4313 followed by each heat exchanging fin 431 and the adjacent heat exchanging fin 431 of connection connecting tube 433, and from institute The outflow of outlet tube 4314 is stated, realizes the heat exchange of the heat-conducting medium Yu heat exchanging fin 431.In present embodiment, the connection Pipe 433 is in flat "u"-shaped, and in the same plane with the heat exchanger plate 43, and the inlet tube 4313 with The outlet tube 4314 is located at the same end of the heat exchanger plate 43.The material of heat exchanger plate 43, producer are saved in this design Just it and convenient for the inlet tube 4313 and the outlet tube 4314 is in communication with the outside.

It should be understood that the connecting tube 433 can also be in bending structure and including two interface ends disposed in parallel And the connecting pin perpendicular to the interface end；The inlet tube 4313 can also be located at the heat exchange with the outlet tube 4314 The two sides of plate 43.

Please continue to refer to Fig. 2, in a specific embodiment of the present embodiment, the quantity of the heat exchanger plate 43 is one It is a and between the bottom wall 4111 and the battery modules 42.The surface of the bottom wall 4111 is towards close to first side The side of wall 4112 convexes to form the reinforcing rib 4113 of a plurality of parallel interval, and the reinforcing rib 4113 is handed in rectangle and with the heat The gap in plate 43 between adjacent heat exchanging fin 431 is changed to correspond.4113 technical ability of reinforcing rib enhances the cabinet 411 Intensity, and certain clamping fixed function can be played to the heat exchanger plate 43.It should be understood that the number of the heat exchanger plate 43 Amount may be two and be connected to two opposite surfaces of the battery modules 42 respectively, enhance dissipating for the battery modules 42 Thermal effect.

In the present embodiment, the battery case 40 further includes more between the heat exchanger plate 43 and the bottom wall 4111 A heat insulating mattress 44.Specifically, each 44 shape of heat insulating mattress correspond to a heat exchanging fin 431 and opposite both side surface respectively with institute Bottom wall 4111 and the heat exchanging fin 431 is stated to abut away from the surface of the single battery 421.The heat insulating mattress 44 can prevent Thermal loss caused by heat exchanger plate 43 and 411 heat exchange of cabinet, and certain shock absorbing effect can be played.Further, The heat insulating mattress 44 can be one of polyurethane, phenol formaldehyde foam.

In the present embodiment, the battery case 40 further includes between the heat exchanger plate 43 and the battery modules 42 Multiple heat conductive pads 50.Specifically, each 50 shape of heat conductive pad correspond to a heat exchanging fin 431 and opposite both side surface respectively with The single battery 421 and the heat exchanging fin 431 are abutted close to the surface of the single battery 421.The heat conductive pad 50 has There are good viscosity, flexibility and good heat conduction efficiency, it is abundant convenient for the heat exchanging fin 431 and the single battery 421 Contact, and then guarantee the heat transference efficiency of heat exchanger plate 43 and the single battery 421.

In a specific embodiment of the present embodiment, the pipeline 50 includes multiple supervisors 51 and two compound tubes 52, each compound tube 52 includes a main pipe 521 and the multiple branch pipes 522 for being fixedly connected on and being connected to described 521 one end of main pipe； Wherein the supervisor 51 is for the connection and the pump housing 20 and the heating between the fluid reservoir 10 and the pump housing 20 Connection between refrigerator 30；The one end of multiple branch pipes 522 of each compound tube 52 far from the main pipe 521 respectively with it is described more The inlet 4313 or inlet 4314 of a battery case 40 are corresponded and are connected to, and the main pipe 521 of each compound tube 52 is far from institute The one end for stating multiple branch pipes 522 is connected to the heating cooler 30 or the fluid reservoir 10.Specifically, the supervisor 51 and institute The intracavity section area for stating main pipe 521 is identical；The main pipe 521 and the branch pipe 522 are the interior of round tube and the main pipe 521 Chamber area of section is equal to the sum of the intracavity section area of the multiple branch pipe 522, so that heat-conducting medium flows through the main pipe 51 is consistent with the liquid pressure of the branch pipe 52.

In a specific embodiment of the present embodiment, the pressure sensor 64 and the flow sensor 63 are independent Setting, and be mounted on the main pipe 51 being connected in the compound tube 52 of the battery case 40 and the fluid reservoir 10.It is understood that , the pressure sensor 64 can also be with integrated design with the flow sensor 63, and then saves material and save space.

Thermal management device of battery 100 provided by the utility model, by the control module 62 according to the temperature sensing The temperature information of the acquisition of device 61 controls the heating cooler 30 and heats or freeze described in adjusting in turn to the heat-conducting medium The temperature of battery case 40；By both having simplified production work for 431 separation design of multiple heat exchanging fins of the heat exchanger plate 43 Skill, and mitigate the energy density that the heat exchanger plate weight improves the battery case 40.Battery thermal provided by the utility model Device 100 is managed, structure is relatively easy, safe and reliable and even temperature effect is good.

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 where, the utility model is not limited to specific details, representative equipment and shown here as with retouch The diagram example stated.

Claims (10)

1. a kind of thermal management device of battery, it is characterised in that: including fluid reservoir, the pump housing, heating cooler, multiple battery cases, head Tail connect and be sequentially communicated the fluid reservoir, the pump housing, the heating cooler and the multiple battery case pipeline and Battery management module；Each battery case includes battery modules and the heat exchanger plate for being connected to the battery modules surface, described Battery modules include the multiple single batteries being arranged side by side, and the heat exchanger plate includes multiple multiple heat exchanges being sequentially communicated Piece, each heat exchanging fin is corresponding with the surface of a single battery and abuts；Heat-conducting medium in the fluid reservoir is in the pump It pressurizes under the action of body and followed by the heating cooler, the heat exchanger plate and finally returns that the storage through the pipeline In flow container；The battery management module includes multiple temperature sensing for being respectively used to measure the multiple battery modules temperature information Device and the control module being electrically connected respectively with the pump housing, the heating cooler, the temperature sensor, the control mould Block receives and controls whether the pump housing starts and the heating cooler is to leading according to the information of temperature sensor acquisition The heating or refrigeration of thermal medium.

2. thermal management device of battery as described in claim 1, it is characterised in that: when the temperature that any one temperature sensor measures When the first temperature preset lower than the control module, the control module controls the pump housing starting and the heating cooler Heating；When the temperature that any one temperature sensor measures second temperature preset higher than the control module, the control mould Block controls the pump housing starting and heating cooler refrigeration；When the temperature that all temperature sensors measure be in it is preset When between the first temperature and second temperature, the pump housing does not work, and the heating cooler does not work.

3. thermal management device of battery as claimed in claim 2, it is characterised in that: first temperature be -20 DEG C, described second Temperature is 45 DEG C.

4. thermal management device of battery as described in claim 1, it is characterised in that: be provided on the heat exchanger plate inlet tube with Outlet tube, the inlet tube are connected to by the pipeline with the heating cooler, and the outlet tube passes through the pipeline and institute State fluid reservoir connection.

5. thermal management device of battery as claimed in claim 4, it is characterised in that: the pipeline includes multiple supervisors and two groups Pipe is closed, each compound tube includes a main pipe and the multiple branch pipes for being fixedly connected on and being connected to described main pipe one end；It is wherein described Supervisor is for the connection between the connection and the pump housing and the heating cooler between the fluid reservoir and the pump housing； Multiple branch pipes of each compound tube far from one end of the main pipe respectively with the inlet of the multiple battery case or inlet one One corresponds to and is connected to, and the main pipe of each compound tube is far from one end of the multiple branch pipe and the heating cooler or the liquid storage Tank connection.

6. thermal management device of battery as claimed in claim 5, it is characterised in that: the heat exchanger plate further includes for fixing simultaneously It is connected to the fixinig plate of the multiple heat exchanging fin；Each heat exchanging fin includes being arranged side by side and the first siphunculus and the of one end connection Bipass, first siphunculus and second siphunculus are flat hollow pipe；It is logical that the fixinig plate offers multiple connections Road and two communications ports positioned at the multiple communicating passage both ends, the both ends of each communicating passage respectively with two neighboring heat The second channel of the first passage of heat exchanging fin and another heat exchanging fin is corresponding in changing plate and is connected to, described two companies Go side mouth respectively the heat exchanging fin with two sides in the multiple heat exchanging fin far from the first passage of the communicating passage and second Channel is corresponding and is connected to；The inlet tube is set on the fixinig plate with the outlet tube and is respectively communicated with described two be connected to Port.

7. thermal management device of battery as described in claim 1, it is characterised in that: each battery case further includes shell, institute Stating shell includes the cabinet and case lid mutually abutted against, the cabinet include bottom wall and extended to form from the edge of the bottom wall One side wall；The heat exchanger plate is between the bottom wall and the battery modules, and the surface of the bottom wall is towards close to described The side of the first side wall convexes to form the reinforcing rib of a plurality of parallel interval, and adjacent heat is handed in the reinforcing rib and the heat exchanger plate It changes the gap between piece and corresponds simultaneously clamping.

8. thermal management device of battery as claimed in claim 7, it is characterised in that: the battery case further includes handing between the heat Change multiple heat insulating mattress between plate and the bottom wall；Each heat insulating mattress corresponds to a heat exchanging fin and opposite both side surface is distinguished It is abutted with the bottom wall and the heat exchanging fin away from the surface of the single battery.

9. thermal management device of battery as claimed in claim 7, it is characterised in that: the battery case further includes handing between the heat Change multiple heat conductive pads between plate and the battery modules；Each heat conductive pad corresponds to a heat exchanging fin and opposite both side surface It is abutted respectively with the single battery and the heat exchanging fin close to the surface of the single battery.

10. thermal management device of battery as described in claim 1, it is characterised in that: further include be installed on the pipeline and with The flow sensor and pressure sensor of the control module electrical connection, the control module receive and according to the flow sensings The flow number of device measurement adjusts the pump housing output power, and the control module is received and measured according to the pressure sensor Pressure value limit the output power of the pump housing.