CN206610879U - Battery module - Google Patents

Abstract

The utility model provides a kind of battery module, in the state of maintaining to house the uniformity of the temperature in space of multiple monocells, improves the substantive efficiency of battery module.In battery module, multiple monocells, heater and soaking plate are housed in the space formed in thermally insulated container.Multiple monocells and bottom surface abreast two-dimensional arrangements.Multiple monocells are respectively sodium-sulphur battery.Heater is configured along bottom surface, possesses the periphery being located at along side and the heating part generated heat, and do not generate heat in the central portion surrounded by periphery.Soaking plate crosses over periphery and central portion along heater configuration.

Description

Battery module

Technical field

The utility model is related to battery module.

Background technology

Sodium-sulphur battery is the secondary cell of hot operation type, is charged, discharged in the state of being heated to about 300 DEG C. Therefore, in the battery module of sodium-sulphur battery, multiple monocells are contained in the space formed in thermally insulated container, and flat with bottom surface Row ground two-dimensional arrangements.In addition, the heater along bottom surface and the heater along side are contained in space, multiple monocells are entered Row heating.Heater along bottom surface and the presence along both heaters of side help to make the multiple monocells of collecting The temperature in space is uniform.Technology described in patent document 1 is one example.

Prior art literature

Patent document

Patent document 1：Japanese Unexamined Patent Publication 2007-273297 publications

Utility model problem to be solved

Heater along bottom surface and the heater consumption electric power along side are acted.Therefore, adding along bottom surface Hot device and reduce the substantive efficiency for charge-discharge of the battery module of sodium-sulphur battery along the presence of both heaters of side. The problem can also be produced in the case where sodium-sulphur battery to be replaced with to the hot operation type secondary cell beyond sodium-sulphur battery.

Utility model content

The utility model is made to solve the problem.Problem to be solved in the utility model is to maintain to receive In the state of the uniformity for the temperature for holding the space of multiple monocells, the reality of the battery module of hot operation type secondary cell is improved The efficiency of matter.

Means for solving the problems

In battery module, multiple monocells, heater and soaking plate are housed in the space formed in thermally insulated container.It is empty Between the bottom surface, top surface and the side that are had by thermally insulated container define, and with being surrounded along the periphery of side and by periphery Central portion.

Multiple monocells and bottom surface abreast two-dimensional arrangements.Multiple monocells are respectively hot operation type secondary cell.

Heater is configured along bottom surface, is possessed positioned at periphery and the heating part that is generated heat, and do not sent out in central portion Heat.

Soaking plate crosses over periphery and central portion along heater configuration.

Utility model effect

Conducted heat from periphery to central portion, the temperature of periphery and the temperature difference of central portion reduce.Maintain to house The uniformity of the temperature in the space of multiple monocells.

The heater of side is needed not be along, the electric power of heater consumption is reduced.The substantive discharge and recharge effect of battery module Rate is improved.

Purpose, feature, aspect and the advantage of utility model beyond these and these pass through in the lump with reference to following practical new The detailed description of type will be apparent with accompanying drawing.

Brief description of the drawings

Fig. 1 is the horizontal cross for representing battery module.

Fig. 2 is the plummet sectional view for representing battery module.

Fig. 3 is the top view for representing heater.

Fig. 4 is the sectional view for representing core.

Embodiment

1 battery module

Fig. 1 and 2 is the schematic diagram for the battery module for representing present embodiment respectively.Fig. 1 is shown in Fig. 2 cutting line A-A Position horizontal cross.Fig. 2 is the plummet sectional view of the position shown in Fig. 1 hatching B-B.

The battery module 1000 that Fig. 1 and 2 is respectively shown in possess thermally insulated container 1012, multiple monocells 1014, distribution 1016, Buffer substrate tablet 1018, heater 1020, soaking plate 1022 and 1024, insulating trip 1026 and sand 1028.Battery module 1000 also may be used To possess the construct beyond these constructs.One in soaking plate 1022 and 1024 can also be omitted.It can also omit slow Punching 1018, insulating trip 1026 and sand 1028 are all or a part of.

Thermally insulated container 1012 possesses container body 1042 and lid 1044.Container body 1042 possesses side wall 1062 and bottom wall 1064.Lid 1044 possesses roof 1082 and eaves 1084.Roof 1082 is placed in the upper end 1122 of side wall 1062.Thus, container master The opening 1102 covered 1044 that body 1042 has is blocked.What the space 1142 formed in container body 1042 was had by side wall 1062 Sideways 1162, the top surface 1168 that the bottom surface 1164 and roof 1082 that bottom wall 1064 has have is defined, by side 1162, bottom surface 1164 and top surface 1168 surround.

Container body 1042 has vacuum insulation structure.Lid 1044 has vacuum insulation structure.Container body 1042 also may be used To replace with the container body with the heat insulating construction beyond vacuum insulation structure, lid 1044 can also replace with exhausted with vacuum The lid of heat insulating construction beyond heat structure.Thermally insulated container 1012 can also have the structure that can temporarily radiate.

Thermally insulated container 1012 has the three-dimensional shape of rectangular-shape.Therefore, side 1162 has face 1182,1184,1186 And 1188, face 1184 is opposed with face 1182 across space 1142, and face 1188 is opposed with face 1186 across space 1142.Thermally insulated container 1012 can also replace with rectangular-shape beyond three-dimensional shape container.

Multiple monocells 1014 are contained in space 1142, and with the abreast two-dimensional arrangements of bottom surface 1164.

Multiple monocells 1014 are respectively cylinder type sodium-sulphur battery, and plummet is erect.Cylinder type sodium-sulphur battery can also be replaced For the sodium-sulphur battery of non-cylinder type.Sodium-sulphur battery can also replace with the hot operation type secondary cell beyond sodium-sulphur battery.

Distribution 1016 electrically connects multiple monocells 1014, and thermally insulated container 1012 is reached from space 1142 through side wall 1062 Outside.By distribution 1016, more than two battery blocks are connected in series, two in each battery block of more than two battery blocks Battery series-parallel connection connection more than individual, more than two cells in series connect in each battery strings of more than two battery strings Connect.

When to be charged to battery module 1000, circulate charging current in distribution 1016, so as to multiple single electricity Each monocell in pond 1014 is charged.When to discharge battery module 1000, to each list of multiple monocells 1014 Battery is discharged, so that the discharge current that circulated in distribution 1016.

Buffer substrate tablet 1018 is contained in space 1142 and is layed on bottom surface 1164.Buffer substrate tablet 1018 is the set of glass fibre Body.Buffer substrate tablet 1018 suppresses in the case where impact puts on bottom wall 1064, and impact passes to multiple monocells 1014.

Heater 1020 and soaking plate 1022 overlapping body 1202 overlapping with 1024 are contained in space 1142, and It is placed in the interarea 1222 of buffer substrate tablet 1018.Thus, heater 1020 and soaking plate 1022 and 1024 are each along bottom surface 1164 configurations, close to bottom surface 1164 and opposed with bottom surface 1164.

Heater 1020 is tabular, and possesses heating part 1242 and non-heating part 1244.Heating part 1242 is located at space 1142 peripheries 1262 having, and generated heat.Non- heating part 1244 is located at the central portion that space 1142 has 1264, and do not generate heat.Thus, heater 1020 generates heat in the periphery 1262 along side 1162, by periphery 1262 The central portion 1264 of encirclement does not generate heat.

An interarea 1282 and another interarea 1284 that soaking plate 1022 and 1024 has respectively along heater 1020 Configuration.

Soaking plate 1022 and 1024 is covered each by the entirety of interarea 1282 and 1284.Therefore, soaking plate 1022 and 1024 is each Along 1162 periphery 1262 sideways and from vertical with bottom surface 1164 during from across from the direction vertical with bottom surface 1164 from Direction observation when the central portion 1264 that is surrounded by periphery 1262, it is and continuous to central portion 1264 from periphery 1262.

Each material freely with good thermal conductivity of soaking plate 1022 and 1024 is constituted, preferably by metal or alloy structure Into being more preferably made up of copper or aluminium.

By soaking plate 1022 and 1024, conducted heat from periphery 1262 to central portion 1264, heating part 1242 is in week The heat transfer that edge 1262 is produced is to central portion 1264.

Increase in periphery 1262 to the heat dissipation capacity of the outside of thermally insulated container 1012, but there is heating in periphery 1262 Portion 1242.Therefore, periphery 1262 is sufficiently heated.Although passing through soaking plate without heating part 1242 in central portion 1264 1022 and 1024 transmit heat from periphery 1262 to central portion 1264, to the outside of thermally insulated container 1012 in central portion 1264 Heat dissipation capacity reduces.Therefore, central portion 1264 is sufficiently heated.Thus, the temperature of periphery 1262 and the temperature of central portion 1264 Subtractive it is small, the temperature in space 1142 becomes uniform.

Soaking plate 1022 and 1024 and heater 1020 need not be along the heater of side 1162.Thus, it is heated The electric power of device consumption is reduced, and the substantive efficiency for charge-discharge of battery module is improved.

Insulating trip 1026 is contained in space 1142, and is placed on the interarea 1272 of overlapping body 1202.Insulating trip 1026 by Material with good insulating properties is constituted, and is preferably made up of mica.Insulating trip 1026 suppress multiple monocells 1014 with it is overlapping Body 1202 is turned on.

Sand 1028 is contained in space 1142, and fills the gap of monocell.

2 heaters

Fig. 3 is the schematic diagram for representing heater.Fig. 3 is top view.

As shown in figure 3, heater 1020 possesses core 1302 and heater line 1304.

Core 1302 is tabular, is made up of, is preferably made up of mica the material with good insulating properties.

Core 1302 possesses platy structure 1322 and 1324.Slit 1342 and 1344 is formed with core 1302.

Platy structure 1322 has the flat shape of cubic ring-type, and positioned at periphery 1262.Platy structure 1324 has The flat shape of rectangle, and centrally located portion 1264.Heater line 1304 is wound in platy structure 1322, but is not wound in tabular Structure 1324.Heating part 1242 is constituted by platy structure 1322 and heater line 1304.Non- heating is constituted by platy structure 1324 Portion 1244.

Heating part 1242 possesses low heating part 1442 and high heating part 1444.High heating part 1444 has than low heating part The big heat generation density of 1442 heat generation densities having.

As shown in figure 1, having corner 1462 when space 1142 is from the direction vertical with bottom surface 1164.Low heating part 1442 are configured at beyond corner 1462.High heating part 1444 is configured at corner 1462.Thus, to the outer row of thermally insulated container 1012 Corner of the heating than the heat dissipation capacity reduction of the outside drain to thermally insulated container 1012 on the corner 1462 for the heat dissipation capacity increase put Heating beyond 1462 is big, and the temperature in space 1142 becomes evenly.Particular place beyond corner 1462 is to thermally insulated container In the case of the heat dissipation capacity increase of 1012 outside drain, high heating part can also be configured on the particular place.For example, with Line 1016 through side wall 1062 place in heat dissipation capacity increase in the case of, high heating part can also be configured on the place.

Platy structure 1324 is connected with platy structure 1322.Therefore, platy structure 1322 and 1324 constitutes the one of tabular Thing.Thus, one processing platy structure 1322 and 1324 will become easy, and the assembling of heater 1020 becomes easy.But, plate Shape structure 1324 can also be separated with platy structure 1322.

Fig. 4 is the schematic diagram for representing the core that heater possesses.Fig. 4 is the sectional view of the position shown in hatching C-C.

As shown in figure 4, the thickness of platy structure 1324 is identical with the thickness that platy structure 1322 has.Therefore, tabular The master that the interarea 1382 and another interarea 1384 that structure 1324 has have with platy structure 1322 respectively Face 1362 and another interarea 1364 constitute same plane.Thus, recess is not formed in the center of heater 1020, can be easy And multiple monocells 1014 are arranged regularly.But, the thickness of platy structure 1324 can also be had with platy structure 1322 Some thickness is different, can also omit platy structure 1324.In the case where eliminating platy structure 1324, non-hair is constituted by hole Hot portion 1244.

As shown in figure 3, platy structure 1322 possesses：Part 1402,1404,1406 and 1408.Part 1402,1404, 1406 and 1408 integrations, and configured respectively along face 1182,1184,1186 and 1188.Part 1402 and 1404 respectively across Slit 1342 and 1344 is separated with platy structure 1324.Part 1406 and 1408 is each connected with platy structure 1324.Heater The interval 1422,1424,1426 and 1428 that line 1304 possesses wraps around part 1402,1404,1406 and 1408, interval 1422 and 1424 extend through slit 1342 and 1344.

In the case where soaking plate 1022 is conductive, in the complex being made up of core 1302 and heater line 1304 The fine sheet with insulating properties is pasted on 1380 interarea.Thus, suppress heater line 1304 to turn on soaking plate 1022.

In the case where soaking plate 1024 is conductive, being pasted on another interarea of complex 1382 has insulation The fine sheet of property.Thus, suppress heater line 1304 to turn on soaking plate 1024.

The detailed description of above-mentioned utility model is exemplary, and non-limiting in all aspects.It therefore, it can not Countless changes and deformation are exported in the range of disengaging the utility model.

The explanation of reference

1000 battery modules

1012 thermally insulated containers

More than 1014 monocell

1020 heaters

1022nd, 1024 soaking plate

1242 heating parts

1244 non-heating parts

1262 peripheries

1264 central portions

1302 cores

1304 heater lines

1322nd, 1324 platy structure

1342nd, 1344 slit

1442 low heating parts

1444 high heating parts

1462 4 jiaos

Claims (10)

1. a kind of battery module, it is characterised in that possess：

Thermally insulated container, it has bottom surface, top surface and side, forms the sky defined by the bottom surface, the top surface and the side Between, the space has periphery and central portion, and the periphery is along the side, and the central portion is by the periphery bag Enclose；

Multiple monocells, the multiple monocell is respectively hot operation type secondary cell, is contained in the space, and with it is described Bottom surface abreast two-dimensional arrangements；

Heater, it is contained in the space, is configured along the bottom surface, possesses positioned at the periphery and the hair that is generated heat Hot portion, and the heater do not generate heat in the central portion；And

Soaking plate, it is contained in the space, along the heater configuration, and crosses over the periphery and the central portion.

2. battery module according to claim 1, it is characterised in that

The heating part possesses：

First platy structure；And

The heater line of first platy structure is wound in,

The heater is also equipped with being located at the central portion and athermic non-heating part,

The non-heating part possesses the second tabular knot for being connected and not winding the heater line with first platy structure Structure.

3. battery module according to claim 2, it is characterised in that

First platy structure has the first interarea and the second interarea,

Second platy structure have with first interarea constitute conplane 3rd interarea and with second interarea Constitute conplane 4th interarea.

4. the battery module according to Claims 2 or 3, it is characterised in that

The side has the first face, the second face, the 3rd face and fourth face,

Second face is opposed with first face,

The fourth face is opposed with the 3rd face,

The heater possesses core, and the core possesses first platy structure and second platy structure, and is formed with One slit and the second slit,

First platy structure possesses：

Part I, it is configured along first face, is separated across first slit with second platy structure；

Part II, it is configured along second face, is separated across second slit with second platy structure；

Part III, it is configured along the 3rd face, is connected with second platy structure；And

Part IV, it is configured along the fourth face, is connected with second platy structure,

The heater line possesses：

First interval, it is wound in the Part I, passes through first slit；

Second interval, it is wound in the Part II, passes through second slit；

3rd interval, it is wound in the Part III；And

4th is interval, and it is wound in the Part IV.

5. the battery module according to Claims 2 or 3, it is characterised in that

The heater has an interarea and another interarea,

The soaking plate is the first soaking plate, and first soaking plate is configured along one interarea,

The battery module is also equipped with the second soaking plate, and it is contained in the space, is configured along another described interarea, and across The periphery and the central portion.

6. battery module according to claim 4, it is characterised in that

The heater has an interarea and another interarea,

The soaking plate is the first soaking plate, and first soaking plate is configured along one interarea,

The battery module is also equipped with the second soaking plate, and it is contained in the space, is configured along another described interarea, and across The periphery and the central portion.

7. the battery module according to Claims 2 or 3, it is characterised in that

The space has corner,

The heating part possesses：

First heating part, it is configured at beyond the corner, and with the first heat generation density；And

Second heating part, it is configured at the corner, and with second heat generation density bigger than first heat generation density.

8. battery module according to claim 4, it is characterised in that

The space has corner,

The heating part possesses：

First heating part, it is configured at beyond the corner, and with the first heat generation density；And

Second heating part, it is configured at the corner, and with second heat generation density bigger than first heat generation density.

9. battery module according to claim 5, it is characterised in that

The space has corner,

The heating part possesses：

First heating part, it is configured at beyond the corner, and with the first heat generation density；And

Second heating part, it is configured at the corner, and with second heat generation density bigger than first heat generation density.

10. battery module according to claim 6, it is characterised in that

The space has corner,

The heating part possesses：

First heating part, it is configured at beyond the corner, and with the first heat generation density；And

Second heating part, it is configured at the corner, and with second heat generation density bigger than first heat generation density.