JP6377327B2 - Heating element storage device - Google Patents

Description

  Embodiments described herein relate generally to a heating element housing device.

  For example, a power storage device such as a battery is a heating element, and the amount of heat generation increases with an increase in the storage capacity. Therefore, it is desired to improve the cooling efficiency of the heating element storage device that stores the heating element.

  Generally, the housing of a heating element housing device that houses a heating element has an air supply port at the bottom, an exhaust port at the top, and a multi-layered storage module between the air supply port and the exhaust port. The cooling structure is taken.

JP 2012-84486 A

  However, in the case of the conventional cooling structure of the heating element housing device, the air introduced from the air supply port is heated while passing through the gaps of the power storage modules stacked in multiple stages in order from the bottom, and the air at the position of each module. Therefore, there is a problem that a temperature difference (temperature variation) increases between the position of the lower power storage module and the position of the upper power storage module.

  The problem to be solved by the present invention is to provide a heating element housing device capable of reducing a temperature difference (temperature variation) between a lower air supply port and an upper exhaust port of a housing.

The heating element storage device of the embodiment includes a side surface on the air supply port side, a side surface on the exhaust port side, a plurality of heat generating modules, a vertical flow channel on the air supply port side, a vertical flow channel on the exhaust port side, and a first horizontal A directional channel , a second horizontal channel and a guide plate . The side surface on the air inlet side is provided with an air inlet at the bottom. The side surface on the exhaust port side is disposed to face the side surface on the air supply port side, and an exhaust port is provided at the top. The plurality of heat generating modules are arranged in multiple stages between the side surfaces in a height range between the air supply port and the exhaust port. The vertical flow path on the air inlet side is provided between the side surface on the air inlet side and the plurality of heat generating modules. The vertical flow path on the exhaust port side is widely provided between the side surface on the exhaust port side and the plurality of heat generating modules so that the ventilation resistance is smaller than the vertical flow channel on the air supply port side. The first horizontal flow path is provided for each of the plurality of heat generating modules so as to vent the horizontal direction from the vertical flow path on the air supply port side to the vertical flow channel on the exhaust port side in the lower part of the heat generation module . . The second horizontal flow path is provided for each heat generation module so as to vent the horizontal direction from the vertical flow path on the air supply port side to the vertical flow path on the exhaust port side on the side and top of the heat generation module. ing. The guide plate has an air flow between a first horizontal flow path of the upper heat generation module and a second horizontal flow path of the lower heat generation module between each of the heat generation modules facing each other vertically among the plurality of heat generation modules. Are arranged to separate.

(A) is front sectional drawing which shows the structure of the electrical storage apparatus of 1st Embodiment. FIG. 2B is a side cross-sectional view of the power storage device of FIG. It is a figure for demonstrating the temperature variation in an electrical storage apparatus. (A) is front sectional drawing which shows the structure of the electrical storage apparatus of 2nd Embodiment. FIG. 4B is a side cross-sectional view of the power storage device of FIG. (A) is front sectional drawing which shows the structure of the electrical storage apparatus of 3rd Embodiment. FIG. 5B is a side cross-sectional view of the power storage device of FIG. (A) is front sectional drawing which shows the structure of the electrical storage apparatus of 4th Embodiment. FIG. 5B is a side cross-sectional view of the power storage device of FIG. (A) is front sectional drawing which shows the structure of the electrical storage apparatus of 5th Embodiment. FIG. 7B is a side cross-sectional view of the power storage device of FIG.

Hereinafter, embodiments will be described in detail with reference to the drawings.
(First embodiment)
FIG. 1 is a diagram illustrating a configuration of the power storage device according to the first embodiment.
As shown in FIG. 1, the power storage device of this embodiment is configured such that a module case 2 as a heating module in which a battery group as a heating element group is housed (stored), and a plurality of module cases 2 are arranged in multiple stages. A support member 11 such as a stay for supporting (fixing), an upper guide plate 12 as a first partition plate, a lower guide plate 13 as a second partition plate, and a housing 1 for housing these members. That is, this power storage device is a device that houses a heating element.

  A fixed interval is provided between the individual (upper and lower) module cases 2 so as to allow ventilation. The lowermost module case 2 is called the lowermost module case 2a, and the uppermost module case 2 is called the uppermost module case 2z.

  A plurality of batteries 3 are arranged in the thickness direction in the module case 2 to form a battery group 4. The battery 3 is a heating element having a substantially rectangular parallelepiped shape. When the battery group 4 is used as described above, the temperature of the battery 3 is higher during heat generation than in a single state. That is, the module case 2 needs to be cooled from the outside because the battery group 4 is heated due to heat generation.

  The housing 1 includes an upper surface 1a, a bottom surface 1b facing the upper surface 1a, a side surface 1c connecting the edges of the upper surface 1a and the bottom surface 1b, a front side surface 1d as a first side surface, and a rear side surface 1e as a second side surface. Has been. The front side surface 1d is disposed to face the rear side surface 1e.

  An air supply port 5 is provided at the lower portion of the housing 1, more specifically at the bottom of the front side surface 1d. An exhaust port 6 is provided in the upper portion of the housing 1, more specifically, in the upper portion of the rear side surface 1 e.

  The upper guide plate 12 is provided on the air supply port 5. The upper guide plate 12 has an opening 12a for sending the air sucked from the air supply port 5 upward. The opening 12a is provided on the side close to the rear side surface 1e.

  The lower guide plate 13 is provided below the exhaust port 6. The lower guide plate 13 has an opening 13 a for sending air from below to the exhaust port 6. The opening 13a is provided on the side close to the front side surface 1d.

  The support member 11 is disposed (fixed) between the upper guide plate 12 and the lower guide plate 13 on the side surface 1c at a predetermined interval in the height direction.

  The module case 2 has an exhaust passage width (second) from the module rear surface (other end) to the rear side 1e rather than an air supply passage width (first width) W1 (distance) from the module front (one end) to the front side 1d. The width W2 (distance) is widened and fixed to the support member 11 at each stage.

The operation of the power storage device of the first embodiment will be described.
In the first embodiment, the air supply port 5 is disposed at the lower part of the housing 1, and the exhaust port 6 is disposed on the rear side 1 e opposite to the air supply port 5 at the upper part of the housing 1. An upper guide plate 12 opened on the exhaust port 6 side is provided above the case 2z, and a lower guide plate 13 opened on the air supply port 5 side is provided below the lowermost module case 2a. An exhaust passage width W2 that is a distance from the rear side 1e of the body 1 on the exhaust port 6 side is defined as an intake passage that is a distance between the front surface of the module case 2 and the front side 1d of the housing 1 on the air supply port 5 side. It is wider than the width W1.

  For this reason, the ventilation resistance of the vertical flow path on the exhaust port 6 side is smaller than the vertical flow path on the air supply port 5 side, and more air flows to the vertical flow path on the exhaust port 6 side through the horizontal path. Begins to flow.

(Air flow)
Air supplied into the housing 1 from the air supply port 5 at the lower part of the front side surface 1d of the housing 1 passes through the opening 13a, and the vertical flow path and the lowermost module on the front side surface 1d (the air supply port 5 side). It branches into a horizontal flow path sandwiched between the bottom surface of the case 2a and the lower guide plate 13, and flows upward and backward. When air passes through the horizontal flow path, the bottom surface of the lowermost module case 2a is cooled. Thereafter, the air escapes to the rear side 1e side (exhaust port 6 side) and rises upward through the rear vertical flow path and is exhausted from the exhaust port 6.

  In addition, the air passing through the vertical flow path on the front side surface 1d (air supply port 5 side) flows to the horizontal flow path, which is the flow path between the module case 2 and the module case 2 at the upper position. Divide into things. The air that has passed through the horizontal flow path flows backward and exits the vertical flow path on the side of the exhaust port 6, rises along the flow path, and is exhausted from the exhaust port 6.

  When the temperature of the air increases due to heat radiation from the module case 2 at each stage, the chimney effect of the vertical flow path on the exhaust port 6 side increases, and the air passes through the horizontal flow path between the module cases 2 and the rear side surface. 1e side, it rises along the rear vertical flow path, and flows smoothly to the exhaust port 6.

  Since the upstream side and the downstream side of the vertical flow path on the air supply port 5 side have almost the same temperature as the supply air, there is almost no temperature difference between the module cases 2 in the air flowing into the horizontal flow path.

  Accordingly, the module case 2 at each stage is cooled by almost isothermal air, and the conventional module case where the module case 2 at the upper stage is cooled by air at a higher temperature is eliminated, and temperature variation due to the height position of the module case 2 is eliminated. Becomes smaller than the conventional one.

  FIG. 2 shows the relationship between the exhaust passage width and the temperature rise of the module case 2 (the heating element group 4 inside the case) (the intake passage width W1 is fixed to 50 mm and the exhaust passage width W2 is changed to 50 mm, 70 mm, and 140 mm). In the case of

  As shown in FIG. 2, as the exhaust passage width W2 is increased with respect to the fixed intake passage width W1, the maximum temperature rise of the module case 2 and the temperature variation depending on the height position tend to be reduced. I understand.

  Thus, according to the first embodiment, the rear surface of the module case 2 (the other end of the module case 2) rather than the intake flow path width W1 from the front surface of the module case 2 (one end of the module case 2) to the front side surface 1d. Since the module case 2 at each stage is arranged so as to widen the exhaust flow path width W2 from the rear side 1e to the rear side 1e, the ventilation resistance of the vertical flow path on the exhaust port 6 side is the vertical flow path on the air supply port 5 side. And more air flows through the horizontal flow path between the module cases 2 to the vertical flow path on the exhaust port 6 side.

  As a result, the air supplied into the housing 1 from the air supply port 5 can be effectively applied to the module case 2 to cool the module case 2 substantially uniformly, and the modules at each stage in the housing 1 can be cooled. The temperature difference (temperature variation) of case 2 can be reduced.

(Second Embodiment)
Next, the power storage device of the second embodiment will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the same structure as the said 1st Embodiment (structure shown in FIG. 1), and the description is abbreviate | omitted.

  As shown in FIG. 3, in the power storage device of the second embodiment, a central guide plate 8 is provided between the module cases 2a and 2b and between the module cases 2b and 2z for partitioning the cases. The central guide plate 8 is partitioned so that the air heated by the heat radiation from the upper surface of the lower module case, for example, the module case 2a and the air that cools the lower surface of the upper module case 2b are not mixed. This is for dividing the flow path into an upper flow path and a lower flow path.

  Thereby, each module case 2a, 2b can be cooled with the low temperature air which flowed into the upper flow path of the module case 2b and the lower flow path of the module case 2a.

  For example, air raised in temperature by heat radiation from the upper surface of the module case 2a is partitioned by the central guide plate 8, so that it does not mix with air that cools the lower surface of the module case 2b thereon.

  As described above, according to the second embodiment, the central guide plate 8 is provided between the upper and lower adjacent module cases 2a and 2b, so that the effect of the air heated by the lower module case 2a can be reduced. The module case 2a, 2b, 2z at each stage can be cooled without being received by the case 2b. Therefore, temperature variations due to the height positions of the module cases 2a, 2b, and 2z can be made smaller than those in the first embodiment.

  The width of the central guide plate 8 is set to the width of the module cases 2a and 2b so that the air heated by heat radiation from the upper surface of the lower module case 2a and the air that cools the lower surface of the upper module case 2b are not mixed. On the other hand, it is better to make it wide so that it protrudes to the air supply side and the exhaust side.

(Third embodiment)
Next, the power storage device of the third embodiment will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the same structure as the said 2nd Embodiment (structure shown in FIG. 3), and the description is abbreviate | omitted.

  As shown in FIG. 4, the power storage device of the third embodiment is obtained by adding (adding) an air supply fan 10 to the configuration of the second embodiment (FIG. 3). A partition plate 14 is provided at the end of the opening 13a of the lower guide plate 13 toward the bottom surface 1b. The partition plate 14 guides air to flow upward. The air supply fan 10 is provided between the partition plate 14 and the front side surface 1d. That is, the air supply fan 10 is disposed at the position of the opening 13 a orthogonal to the opening direction of the air supply port 5.

  By providing the air supply fan 10 in this way, the flow velocity of the air flowing into the upper flow path and the lower flow path of each module case 2a, 2b, 2z is remarkably increased, and the heat transfer rate can be increased. The temperature rise of the battery 3 stored in the module cases 2a, 2b, 2z can be greatly reduced as a whole.

  In this case, the exhaust port 6 is not limited to the upper portion of the housing 1, but is formed on the substantially entire rear surface 1 e facing the front side surface 1 d provided with the air supply port 5 or on the top (corner portion) of the housing 1. It may be provided.

  As described above, according to the third embodiment, by adding (adding) the air supply fan 10 to the configuration of the second embodiment, the upper flow path and the lower flow path of each module case 2a, 2b, 2z. As a result, the flow rate of the air flowing into the battery case is remarkably increased, and the temperature rise of the battery 3 stored in the module cases 2a, 2b, 2z can be reduced as a whole.

  Moreover, the temperature variation by the height position of module case 2a, 2b, 2z (heat generating body group 4) can be made still smaller than 2nd Embodiment.

(Fourth embodiment)
Next, the power storage device of the fourth embodiment will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the same structure as the said 1st thru | or 3rd embodiment (structure shown to FIG.3, 4), and the description is abbreviate | omitted.

  As shown in FIG. 5, the power storage device of the fourth embodiment is obtained by adding (adding) an exhaust fan 7 to the configuration of the second embodiment. The exhaust fan 7 is provided at the exhaust port 6. The exhaust fan 7 increases the flow velocity of air flowing into the upper flow path and the lower flow path partitioned by the upper guide plate 12, the central guide plate 8, and the lower guide plate 13 of the module cases 2a, 2b, and 2z.

  By providing the exhaust fan 7 in this way, the flow rate of air flowing into the upper flow path and the lower flow path of each module case 2a, 2b, 2z is remarkably increased, and the heat transfer rate is increased. Overall temperature rise can be greatly reduced.

  Moreover, the temperature dispersion | variation by the height position of the heat generating body group 4 stored in module case 2a, 2b, 2z can be made still smaller than 2nd Embodiment.

  In this case, the exhaust port 6 and the exhaust fan 7 may be arranged at the top (corner) of the housing 1 with the opening facing upward, and the air supply port 5 is formed on the front side surface 1d facing the exhaust port 6. It may be provided on substantially the entire surface.

  As described above, according to the fourth embodiment, the exhaust fan 7 is further added (added) to the configuration of the third embodiment, so that the upper and lower flow paths of the module cases 2a, 2b, and 2z are provided. The flow rate of the air flowing in becomes remarkably fast, and the temperature rise of the module cases 2a, 2b, 2z can be reduced as a whole, and the height position of the heating element group 4 stored in the module cases 2a, 2b, 2z Accordingly, the temperature variation can be further reduced as compared with the second embodiment.

(Fifth embodiment)
Next, the power storage device of the fifth embodiment will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the same structure as the said 1st thru | or 4th embodiment (structure shown to FIG.3,4,5), and the description is abbreviate | omitted.

  As shown in FIG. 6, the power storage device of the fifth embodiment is a combination of the third embodiment and the fourth embodiment, and an air supply fan is added to the configuration of the second embodiment (configuration of FIG. 3). 10 (configuration of FIG. 4) and exhaust fan 7 (configuration of FIG. 5) are added (added).

  By providing the air supply fan 10 and the exhaust fan 7 in this manner, the flow rate of air flowing into the upper flow path and the lower flow path of each module case 2a, 2b, 2z is remarkably increased, and the heat transfer rate is increased. The overall temperature rise of the heating element group 4 can be greatly reduced.

  Moreover, the temperature variation by the height position of the heat generating body group 4 stored in module case 2a, 2b, 2z can be made smaller than 3rd Embodiment and 4th Embodiment.

  As described above, according to the fifth embodiment, the air supply fan 10 and the exhaust fan 7 are further added (added) to the configuration of the second embodiment, so that the upper flow paths of the module cases 2a, 2b, and 2z and The flow velocity of the air flowing into the lower flow path is remarkably increased, and the temperature rise of the battery 3 stored in the module cases 2a, 2b, 2z can be reduced as a whole, and the module cases 2a, 2b, 2z The temperature variation due to the height position of the heating element group 4 stored therein can be further reduced as compared with the third embodiment and the fourth embodiment.

As described above, the embodiments of the present invention have been described. However, these embodiments are presented as examples, and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.
In the above embodiment, an example in which the module case has three stages is shown, but the number of module case stages is not limited to three, and may be five stages, eight stages, ten stages, and the like.

  DESCRIPTION OF SYMBOLS 1 ... Housing, 1a ... Upper surface, 1b ... Bottom surface, 1c ... Side surface, 1d ... Front side surface, 1e ... Rear side surface, 2, 2a, 2b, 2z ... Module case, 3 ... Battery, 4 ... Battery group, 5 ... Supply Air vent, 6 ... exhaust port, 7 ... exhaust fan, 8 ... center guide plate, 10 ... intake fan, 12 ... upper guide plate, 13 ... lower guide plate, 14 ... partition plate.

Claims (4)

A side surface on the air inlet side provided with an air inlet at the bottom;
A side surface on the exhaust port side which is disposed opposite to the side surface on the air supply port side and is provided with an exhaust port on the top;
A plurality of heating modules arranged in a plurality of stages in a height range of between said air inlet and said air outlet between said side,
A vertical flow path on the air inlet side provided between the side surface on the air inlet side and the plurality of heat generating modules;
An exhaust port-side vertical flow path that is widely provided between the side surface on the exhaust port side and the plurality of heat generating modules so that the ventilation resistance is smaller than the vertical flow path on the air supply port side;
A first horizontal flow provided in the lower part of each of the plurality of heat generating modules so as to vent in a horizontal direction from the vertical flow channel on the air supply port side to the vertical flow channel on the exhaust port side. Road,
For each of the heat generating modules, a second horizontal portion is provided on the side and upper portion of the heat generating module so as to vent the air horizontally from the vertical flow path on the air supply side to the vertical flow path on the exhaust port side. Directional flow path,
An air flow between the first horizontal flow path of the upper heat generation module and the second horizontal flow path of the lower heat generation module between the heat generation modules facing each other vertically among the plurality of heat generation modules. A heating element housing device comprising a guide plate arranged so as to divide . Heating element containing device according to claim 1 Symbol mounting comprises a supply air fan disposed in the air inlet. Heating element containing device according to claim 1 Symbol mounting provided with an exhaust fan that is disposed in the exhaust port. Claim 1 Symbol placement of the heating element accommodating unit and an exhaust fan disposed in said exhaust port and the air supply fan disposed in the air inlet.

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