TWI598032B - Battery Module with nature convection cooling structure - Google Patents

Description

Natural conduction heat dissipation battery module

The present invention relates to a battery module, and more particularly, to a battery module that naturally conducts heat dissipation, and achieves a good heat dissipation effect without the need of a fan to conduct flow.

According to nuclear power generation, thermal power generation, and hydropower generation, it is currently the main energy generation method widely used by humans. However, nuclear power generation will generate nuclear waste, and thermal power generation will cause serious air pollution. Hydropower generation is limited by geographical factors. low. In recent years, with the rising awareness of environmental protection and the impact of global warming, human beings have gradually paid attention to the development of alternative energy sources, and solar power generation is one of the important projects for human beings to develop alternative energy sources.

Solar power generation is an application of converting solar energy into electrical energy. It consists of a solar panel, an inverter and a battery module. The solar panel converts the light energy from the sun into electrical energy through the photoelectric effect, and then through the inverter. The converted electrical energy becomes low voltage direct current. When the solar panel output energy is higher than the household power consumption during the day, the low-voltage direct current is first stored in the battery module; when the solar panel stops outputting energy when there is no sunshine at night, the battery module outputs the stored energy during the day to the household. By using, it is possible to use the energy output from the solar panel more efficiently, and shorten the time that the family needs to rely on the power supply of the power company.

In order to increase the storage capacity of the battery module, a plurality of batteries are arranged in a limited space inside the battery module. However, the batteries generate heat energy during charging and discharging, and the battery module is accumulated due to heat accumulation. There will be a temperature difference between the multiple batteries inside the group. Some of the batteries will be degraded due to the high temperature environment, and even the voltage imbalance of the battery module and the current loss will be caused.

In view of the above-mentioned shortcomings of the prior art, the present invention provides a battery module for naturally conducting heat dissipation, which is a battery module for solar power generation and capable of reducing the temperature difference between internal batteries. The natural conduction heat dissipation battery module includes a cabinet, a baffle, an upper battery pack, and a lower battery pack. The box body has a carrier plate, a left side plate, a right side plate, an upper side plate, a lower side plate, a cover plate and an inner space of the box body. The internal space of the box is composed of a carrier plate, a left side plate, a right side plate, an upper side plate, a lower side plate and a cover plate. The left side plate has a left upper side wind tunnel and a lower left side wind tunnel, and the right side plate has a right upper side wind tunnel and a lower right side wind tunnel, the upper side board has an upper side wind tunnel, and the lower side board has a lower side wind tunnel. The deflector is placed in the inner space of the box to substantially separate the inner space of the box into an upper space and a lower space. The left end of the deflector extends to the vicinity of the left side plate. The right end of the deflector extends to the vicinity of the right side panel. The upper left side wind tunnel, the upper right side wind tunnel and the upper side wind tunnel are connected to the upper space. The lower left side wind tunnel, the lower right side wind tunnel and the lower side wind tunnel are connected to the lower space. The upper battery pack is located in the upper space. The heat generated by the upper battery pack heats the nearby air to form a first air flow. The first wind flow flows out of the upper space through the upper side wind tunnel on the one hand, and flows into the upper space from the upper left side wind tunnel and the upper right side wind tunnel on the other hand. The first airflow is able to dissipate heat from the upper battery pack. The lower battery pack is located in the lower space. The heat generated by the lower battery pack heats the nearby air to form a second air flow. The second airflow is guided by the deflector on the one hand, and flows out of the lower space from the lower left side wind tunnel and the lower right side wind tunnel respectively, and flows into the lower space from the lower side wind tunnel. The second airflow is capable of dissipating heat to the lower battery pack.

Optionally, the natural heat-conducting battery module further has a grounding mechanism and a ground conducting path. The grounding mechanism is disposed on one of the pair of wings. The grounded conduction path is located in the cabinet. Connect The ground mechanism is electrically coupled to the ground conduction path. The cover has a first electrical coupling surface and a first joint. At least one of the left side panel, the right side panel, the upper side panel, and the lower side panel has a second electrical coupling surface and a second bonding portion. The first joint portion is coupled to the second joint portion, and the cover plate is coupled to at least one of the left side plate, the right side plate, the upper side plate and the lower side plate, and the first electrical coupling surface is electrically coupled to the second electrical coupling surface. To form a grounded conduction path of the box.

Alternatively, the carrier plate has a carrier plate wind tunnel. The heat generated by the upper battery pack heats the nearby air to form a third air flow. The third wind flow flows out of the upper space through the upper side wind tunnel on the one hand, and flows into the upper space from the load bearing plate wind tunnel on the other hand. The third airflow is capable of dissipating heat from the upper battery pack. The heat generated by the lower battery pack heats the nearby air to form a fourth air flow. The fourth wind flow is guided by the deflector on the one hand, and flows out of the lower space from the lower left side wind tunnel and the lower right side wind tunnel respectively, and on the other hand, flows into the lower space from the load bearing plate wind tunnel. The fourth airflow is capable of dissipating heat to the lower battery pack.

Compared with the prior art, the natural heat conduction and heat dissipation battery module of the present invention can be used sideways, and the inner baffle, the upper battery pack and the lower battery pack are disposed inside. The deflector can separate the battery pack from the lower battery pack, and can guide the hot air flow generated when the battery pack is charged and discharged laterally, thereby avoiding the accumulation of thermal energy of the lower battery pack near the upper battery pack, thereby causing The voltage imbalance occurs in the upper battery pack and the current is lost, which in turn causes the life of the upper battery pack to be degraded.

1‧‧‧ battery module

11‧‧‧ cabinet

111‧‧‧Loading board

1111‧‧‧ Bearer wind tunnel

112‧‧‧left side panel

1121‧‧‧left upper side wind tunnel

1122‧‧‧The lower left side wind tunnel

114‧‧‧right side panel

1141‧‧‧Upper upper side wind tunnel

1142‧‧‧The lower right side wind tunnel

1143‧‧‧Power line socket

1145‧‧‧Communication line socket

116‧‧‧Upper side panel

1161‧‧‧Upper side wind tunnel

1162‧‧‧ dust cover

1163‧‧‧Support ribs

117‧‧‧ lower side panel

1171‧‧‧ lower side wind tunnel

118‧‧‧ Cover

1181‧‧‧First electrical coupling surface

1182‧‧‧ first joint

1185‧‧‧ combined with flanks

119‧‧‧ wing

1191‧‧‧Handle

1192‧‧‧ wall hanging hole

1193‧‧‧ Grounding mechanism

12‧‧‧Baffle

123‧‧‧ recessed gap

125‧‧‧Air passage

13‧‧‧Upper battery pack

131‧‧‧times on the battery pack

14‧‧‧Battery pack

141‧‧‧ battery packs

15‧‧‧Circuit board

161‧‧‧Second electrical coupling surface

162‧‧‧Second junction

S‧‧‧ interior space

US‧‧‧Space

DS‧‧‧Let space

WF1‧‧‧First Merry

WF2‧‧‧Second Merry

WF3‧‧‧ Third Merry

WF4‧‧‧fourth current

Fig. 1 is a view showing the state of use of the battery module of the present invention.

Figure 1-1 is a cross-sectional view taken along line AA of Figure 1.

Figure 1-2 is an enlarged view of the area indicated by symbol B in Figure 1-1.

Fig. 2 is an exploded perspective view showing a part of the first embodiment of the battery module of the present invention.

Fig. 3 is a perspective view showing a first embodiment of the battery module of the present invention.

Figure 4 is a top plan view of the first embodiment of the battery module of the present invention with the cover plate omitted.

Figure 5 is an exploded view of the cover and the case of the first embodiment of the battery module of the present invention.

Figure 6 is a schematic view showing the combination of the casing and the cover of the battery module of the present invention.

Figure 7-1 is an enlarged view of the area indicated by the symbol D in Figure 6.

Figure 7-2 is a cross-sectional view taken along line BB of Figure 7-1.

Figure 8 is an exploded view of a portion of a second embodiment of the battery module of the present invention.

The other aspects of the present invention will be readily understood by those skilled in the art from this disclosure. The invention may also be embodied or applied by other different embodiments. The details of the present invention can be variously modified and changed without departing from the spirit and scope of the invention. In particular, the relative relationship and relative positions of the various elements in the drawings are for illustrative purposes only and are not representative of actual implementation of the invention.

In the following, the same or similar functions and components will be described in the following embodiments, and the description of the same or equivalent technical features will be omitted to make the disclosure more concise and easy to understand.

The invention provides a battery module for natural heat conduction and heat dissipation, which can be used for solar power generation, and can be hanged on the wall surface indoors and outdoors to save space. The inside of the battery module has a secondary battery pack and a wind flow guiding structure, and the secondary battery pack can be divided into an upper battery pack and a lower battery pack. The upper battery pack is located above the lower battery pack, and the air flow guiding structure can guide the hot air flow generated when the battery pack is charged and discharged laterally, and the thermal energy of the lower battery pack can be accidentally accumulated in the vicinity of the upper battery pack, so the battery The temperature difference between the battery pack and the lower battery pack during charging and discharging can be greatly reduced, so as to effectively improve The overall life of the high battery module can reduce the voltage imbalance and current loss caused by overheating of the upper battery pack in the battery module.

In addition, the conventional battery module requires an additional fan to dissipate heat from the internal battery pack through the fan diversion. However, the battery module has the following problems: (1) additional power is required to drive the fan; (2) The fan may malfunction due to continuous operation for a long time to reduce the reliability of the overall battery module. In this regard, the battery module of the present invention is designed to naturally generate a wind flow in the internal space of the box by using the heat energy generated when the battery pack is charged and discharged without a fan, thereby achieving a good heat dissipation effect. The problem caused by setting the fan inside the battery module.

For the following description of the technical contents of the present invention, please refer to FIG. 1 to FIG. 8 together.

As shown in FIG. 1 and FIG. 2, the natural heat-conducting battery module 1 of the present invention has a casing 11, a deflector 12, an upper battery pack 13, a lower battery pack 14, and a circuit board 15. The inside of the casing 11 has a casing internal space S for accommodating the deflector 12, the upper battery pack 13, the lower battery pack 14, and the circuit board 15. The six sides of the casing 11 collectively surround the inner space S of the casing, and each has a carrying plate 111, a left side plate 112, a right side plate 114, an upper side plate 116, a lower side plate 117, and a cover plate 118.

The carrier plate 111 is used to carry the deflector 12, the upper battery pack 13, the lower battery pack 14 and the circuit board 15 to achieve the hanging of the body of the battery module 1 on the wall surface. Thus, the carrier plate 111 must load the weight of the battery pack 13 and the lower battery pack 14, so that it is required to be made of a first material (such as steel) having a high material strength, and the left side panel 112, the right side panel 114, the upper side panel 116, Since the lower side plate 117 and the cover plate 118 do not need to load the weight of the battery pack 13 and the lower battery pack 14, the second material (for example, aluminum) having a light material can be selected without considering the material strength. That is, the material strength of the second material can be lower than the material strength of the first material, and the overall weight reduction effect of the battery module 1 is achieved. In addition, the upper side of the casing 11 may be placed with a heavy object, so in general, the upper side plate 116 is required to have a structural strength capable of withstanding a large external force. In the embodiment shown in FIG. 5, the upper side plate 116 is provided with a plurality of support ribs 1163, each supporting The rib 1163 extends from the side of the lower surface of the upper side plate 116 adjacent to the carrier plate 111 to the lower surface of the upper side plate 116 adjacent to the other side of the cover plate 118 to provide upward support to the body of the upper side plate 116, and to increase the external force of the upper side plate 116. Ability.

In the embodiment shown in FIGS. 2 and 3, the carrier plate 111 has a carrier wind tunnel 1111 to serve as a passage for the wind to flow through the carrier plate 111. The left side panel 112 has a left upper side panel wind tunnel 1121 and a lower left side panel wind tunnel 1122 as a passage through which the wind flow passes through the left side panel 112. The right side plate 114 has a right upper side panel wind tunnel 1141, a lower right side panel wind tunnel 1142, a power line socket 1143, and a communication line socket 1145. The upper right side panel wind tunnel 1141 and the lower right side panel wind tunnel 1142 are used as passages through which the wind flow passes through the right side panel 114. The power line socket 1143 and the communication line socket 1145 are adjacent to each other to provide insertion of an external power line and a network communication line. In the present embodiment, the two sockets 1143, 1145 are disposed at the upper end of the right side plate 114, and the two sockets 1143, 1145 are adjacent to each other to reduce the area occupied by the two sides on the right side plate 114, while retaining most of the right side plate 114. The upper right side wind tunnel 1141 and the lower right side wind tunnel 1142 are arranged in an area. However, not limited thereto, the power line socket 1143 and the communication line socket 1145 may be disposed at any position of the left side plate 112. The upper side panel 116 has an upper side panel wind tunnel 1161 to serve as a passage for wind flow through the upper side panel 116. The lower side plate 117 has a lower side wind tunnel 1171 as a passage through which the wind flows through the lower side plate 117.

In the present invention, the baffle 12 is disposed on the carrier plate 111 (please refer to FIG. 2) or on the cover plate 118 (please refer to FIG. 8), and can enter the inner space S of the casing, and the deflector 12 The left and right ends may extend to the vicinity of the left side plate 112 and the right side plate 114, respectively, to substantially separate the inner space S of the case into the upper space US and the lower space DS. In the embodiment shown in FIG. 2, the upper space US is connected to the upper left side wind tunnel 1121, the upper right side wind tunnel 1141 and the upper side wind tunnel 1161 so that the wind flow can enter and exit the upper space US. The lower space DS is connected to the lower left side wind tunnel 1122, the lower right side wind tunnel 1142 and the lower side wind tunnel 1171, so that the wind flow can enter and exit the lower space DS.

As shown in FIG. 8 , the deflector 12 is a horizontally extending plate that is substantially symmetrical to the left and right, so that the airflow of the lower space DS is substantially equivalent to the airflow flowing out of the lower space DS from the lower left side wind tunnel 1122 and the lower right side wind tunnel 1142, respectively. The battery pack 14 has a temperature difference between the left and right ends of the battery pack 14 during charge and discharge. However, in other embodiments of the present invention, the baffle 12 can also be designed as other substantially symmetrical plate-like bodies. For example, the baffle 12 is a substantially V-shaped plate-shaped body that is substantially symmetrical.

As shown in FIG. 4, the circuit board 15 extends in a direction substantially perpendicular to the ground, that is, in a direction substantially parallel to the carrier plate 111 or the cover plate 118 and across the deflector 12 such that the upper half of the circuit board 15 The upper portion and the lower portion respectively enter the upper space US and the lower space DS to electrically connect the upper battery unit 13 and the lower battery unit 14 respectively, and control the charging and discharging of the upper battery unit 13 and the lower battery unit 14. As shown in FIG. 4 and FIG. 5, in order to electrically connect the upper battery pack 13 and the lower battery pack 14, if the circuit board 15 needs to straddle the upper space US and the lower space DS, the deflector 12 can form a recessed gap. 123 for the board 15 to straddle, at this time the contour of the deflector 12 has an L shape. However, not limited thereto, as shown in FIG. 8, if the circuit board 15 does not need to straddle the upper space US and the lower space DS, the contour of the baffle 12 may be a rectangular shape with four sides.

In the embodiment shown in FIG. 4, the upper battery pack 13 is composed of a plurality of secondary battery packs 131. The upper battery pack 13 is disposed on the carrier plate 111 and located in the upper space US, and the adjacent two upper battery packs 131 are separated from each other by the air flow passage 125. In the present embodiment, the air flow passage 125 extends in a direction substantially perpendicular to the ground. The thermal energy generated by the secondary battery pack 131 during charging and discharging causes the nearby air to heat up, and the volume expands and the density is reduced due to the increase of the temperature of the air. Therefore, according to the chimney effect, the secondary battery pack 131 may cause charging and discharging. The nearby air is heated and flows upward through the air flow passage 125 (i.e., flows toward the upper side plate 116) to form the first wind flow WF1 and the third wind flow WF3. Regarding the formation and action of the first wind flow WF1 and the third wind flow WF3, more specifically: the heat energy emitted by the secondary battery pack 131 during charging and discharging causes the air inside the upper space US to heat up, and upward through the air flow passage 125. The side plate 116 flows in the direction, and then flows out of the upper space US through the upper side wind tunnel 1161, and takes the space inside the US. The accumulated heat energy causes the air pressure inside the upper space US to be lower than the air pressure outside the casing 11, which causes the following two possible effects: (1) attracting outside air from the upper left side plate wind tunnel 1121 and the upper right side plate wind tunnel 1141 into the upper space US And forming a first wind flow WF1; (2) attracting outside air from the carrier wind tunnel 1111 into the upper space US to form a third wind flow WF3. In this way, the first airflow WF1 and the third windflow WF3 can naturally conduct a flow (ie, need to be guided by a fan to achieve a heat dissipation effect on the upper space US).

In addition, as shown in FIG. 1-2, the upper side plate 116 has a dust-proof guide cover 1162. The dust-proof guide cover 1162 is disposed above the upper-side wind tunnel 1161 to block environmental dust from entering the upper side wind tunnel 1161 and guiding respectively. The flow of the first wind flow WF1 and the third wind flow WF3 flowing out of the upper side wind tunnel 1161 helps the natural conduction heat dissipation of the battery module 1.

As in the embodiment shown in FIG. 4, the lower battery pack 14 is composed of a plurality of lower battery packs 141. The lower battery pack 14 is disposed on the carrier plate 111 and located in the lower space DS, and the adjacent two lower battery packs 141 are separated from each other by the air flow passage 125. In the present embodiment, the air flow passage 125 extends in a direction substantially perpendicular to the ground. The heat energy generated by the secondary battery pack 14 during charging and discharging causes the nearby air to heat up, and the volume expands to decrease the density due to the temperature rise of the air. Therefore, according to the chimney effect, the secondary battery pack 141 may cause charging and discharging. The nearby air is heated to flow upward through the air flow passage 125 to form the second wind flow WF2 and the fourth wind flow WF4. Regarding the formation and action of the second airflow WF2 and the fourth windflow WF4, more specifically: the thermal energy emitted by the secondary battery pack 141 during charging and discharging causes the air inside the lower space DS to heat up and is upward through the airflow passage 125. The flow (i.e., flowing in the direction of the baffle 12), and then through the guide of the baffle 12, flows out of the lower space DS from the lower left side plate wind tunnel 1122 and the lower right side plate wind tunnel 1142, respectively, and the enthalpy takes the space accumulated inside the space DS. The heat energy, and the air pressure inside the lower space DS is lower than the air pressure outside the box 11, causing the following two possible effects: (1) attracting outside air from the lower side wind tunnel 1171 into the lower space DS to form the second wind flow WF2; (2) Attracting the outside air from the load-bearing plate wind tunnel 1111 The fourth wind flow WF4 is formed by entering the space DS. In this way, the second airflow WF2 and the fourth windflow WF4 can naturally convect the ground (ie, need to be guided by the fan) to achieve the effect of dissipating heat to the lower space DS.

In this way, the thermal energy generated by the lower battery pack 14 during charging and discharging may leave the lower space DS as the second airflow WF2 and the fourth windflow WF4 do not enter the upper space US, so that the thermal energy accumulation of the lower battery pack 14 can be avoided. In the vicinity of the upper battery pack 13, the temperature difference existing between the upper battery pack 13 and the lower battery pack 14 during charging and discharging is reduced, thereby improving the service life of the battery module 1 as a whole and reducing the upper battery in the battery module 1. The voltage imbalance and current loss of the group 13 and the lower battery pack 14 occur.

As shown in FIG. 1 and FIG. 4, the natural heat-conducting battery module 1 of the present invention has a pair of wings 119, a pair of handles 1191 and at least a pair of wall-hanging holes 1192. . The battery module 1 shown in FIG. 4 has two pairs of wall-hanging holes 1192 of a pair of left and right sides. The pair of wings 119 are respectively disposed on the left and right sides of the carrier plate 111 and extend outwardly, and protrude from the left and right sides of the box body 11 respectively for providing the pair of handles 1191 and the pair of wall hanging holes 1192. The pair of handles 1191 are respectively disposed on one of the pair of flaps 119 and extend toward the cover plate 118, and are respectively exposed on the left and right sides of the case 11. The pair of wall-hanging holes 1192 are respectively disposed on one of the pair of flaps 119, and respectively avoid the handles 1191 on the flaps 119, and are respectively exposed on the left and right sides of the box 11 and remain visible, and help The wall of the battery module 1 is completed by aligning the wall.

The use of the pair of handles 1191 and the pair of wall-hanging holes 1192 is as follows: when two hooks have been set at the wall side, the hands of the worker who installs the battery module 1 can respectively apply the force to the pair of handles 1191. To lift the battery module 1 and bring the carrying board 111 close to the wall side, and then align the pair of wall hanging holes 1192 with the two hooks, and then only push the battery module 1 toward the wall side. The two hooks are respectively passed through the pair of wall hanging holes 1192, and the carrier board 111 is hooked to thereby hang the battery module 1 side to the wall surface as shown in FIG.

In the embodiment shown in FIG. 5, the left and right sides of the cover plate 118 respectively have a combined side wing 1185 for combining with the left side plate 112 and the right side plate 114, respectively. For the grounding of the battery module, the combined side wings 1185 on the left and right sides of the cover plate 118 may have a first electrical coupling surface 1181 and a first joint portion 1182. Correspondingly, the left side plate 112 and the right side plate 114 respectively have a second electrical coupling surface 161 and a second joint portion 162. The surface of most of the cover plate 118, the left side plate 112 and the right side plate 114 is generally coated with a paint to avoid the exposure of the metal body to provide functions such as insulation or rust prevention, and the metal body is retained only on the surface of a small portion of the area. Exposed, a first electrical coupling surface 1181 and a second electrical coupling surface 161 are formed.

As shown in the embodiment of FIG. 5 to FIG. 7-2, the first joint portion 1182 is a screw seat, and the second joint portion 162 is a screw hole. Thus, the pair of joint side flaps 1185 can be respectively coupled by screw locking. On the left side plate 112 and the right side plate 114. When the screws are locked to couple the pair of side flaps 1185 to the left side panel 112 and the right side panel 114, the side flaps 1185, the left side panel 112 and the right side panel 114 are forced to abut, so that the first electrical coupling surface 1181 is in close contact. The second electrical coupling surface 161 electrically connects the two coupling surfaces 1181, 161 to form a ground conduction path on the casing 11 and transmit the ground signal of the casing 11. In addition, for the ground signal of the box 11, at least one of the pair of wings 119 may be provided with a grounding mechanism 1193 electrically coupled to the ground conducting path to transmit the ground signal of the box 11 to the outside. It should be noted that the grounding mechanism 1193 does not need to be coated with paint.

In summary, the natural heat-conducting battery module of the present invention can achieve a good heat dissipation effect without the need to conduct a fan through the flow. The battery module of the present invention includes a case, a baffle, and a secondary battery pack. The secondary battery pack is divided into an upper battery pack and a lower battery pack. The deflector can divide the internal space of the box into two parts, the upper battery pack is placed in the upper half of the box, and the lower battery pack is placed in the lower half of the box. The heat energy generated when the battery pack is charged and discharged can form a wind flow in the internal space of the cabinet, so that the thermal energy of the lower battery pack is accumulated in the upper battery pack, but due to the existence of the deflector, the thermal energy of the lower battery pack is formed. The wind flow can be guided away from the side of the box, so that the wind formed by the thermal energy of the lower battery pack The flow cannot flow into the upper half of the casing, thereby preventing the thermal energy generated by the lower battery pack from accidentally accumulating in the vicinity of the upper battery pack, thereby increasing the life of the upper battery pack and the stability of charging and discharging.

The above embodiments are merely illustrative of the principles and effects of the invention and are not intended to limit the invention. Modifications and variations of the above-described embodiments can be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of the invention should be as defined in the scope of the invention.

1‧‧‧ battery module

11‧‧‧ cabinet

111‧‧‧Loading board

112‧‧‧left side panel

1121‧‧‧left upper side wind tunnel

1122‧‧‧The lower left side wind tunnel

114‧‧‧right side panel

1141‧‧‧Upper upper side wind tunnel

1142‧‧‧The lower right side wind tunnel

1143‧‧‧Power line socket

1145‧‧‧Communication line socket

116‧‧‧Upper side panel

117‧‧‧ lower side panel

1171‧‧‧ lower side wind tunnel

118‧‧‧ Cover

1181‧‧‧First electrical coupling surface

1185‧‧‧ combined with flanks

119‧‧‧ wing

12‧‧‧Baffle

123‧‧‧ recessed gap

125‧‧‧Air passage

13‧‧‧Upper battery pack

131‧‧‧times on the battery pack

14‧‧‧Battery pack

141‧‧‧ battery packs

15‧‧‧Circuit board

S‧‧‧ interior space

US‧‧‧Space

DS‧‧‧Let space

Claims (12)

The utility model relates to a natural heat conduction and heat dissipation battery module, comprising: a box body having a carrier board, a left side board, a right side board, an upper side board, a lower side board, a cover plate and a box inner space; The inner space of the box is composed of the carrier plate, the left side plate, the right side plate, the upper side plate, the lower side plate and the cover plate, wherein the left side plate has a left upper side panel wind tunnel and a lower left side panel wind tunnel, The right side panel has a right upper side panel wind tunnel and a right lower side panel wind tunnel, the upper side panel has an upper side panel wind tunnel, the lower side panel has a lower side panel wind tunnel; and a deflector panel, the deflector is placed in the inner space of the box, Separating the inner space of the box into an upper space and a lower space, the left end of the baffle extends to the vicinity of the left side plate, and the right end of the baffle extends to the vicinity of the right side plate, the left upper side wind tunnel, The upper right side wind tunnel and the upper side wind tunnel are connected to the upper space, and the lower left side wind tunnel, the lower right side wind tunnel and the lower side wind tunnel are connected to the lower space; an upper battery pack, the upper battery compartment In the upper space, the thermal energy generated by the upper battery pack heats the nearby air to form a first airflow, which flows out of the upper space via the upper side wind tunnel on the one hand, and the upper left wind tunnel from the upper side. And the right upper side wind tunnel flows into the upper space, so that the first air flow can naturally conduct heat dissipation to the upper battery pack; and a lower battery pack, the lower battery pack is located in the lower space, and the thermal energy generated by the lower battery pack Heating the nearby air to form a second airflow, which is guided by the deflector on the one hand, and flows out of the lower space from the lower left side wind tunnel and the lower right side wind tunnel respectively, on the other hand The lower side wind tunnel flows into the lower space, so that the second air flow can naturally conduct heat to the lower battery pack. The battery module for natural heat conduction according to claim 1, wherein in the inner space of the box, the shape of the left end and the right end of the baffle is substantially symmetrical, so that the second air flow system is respectively The wind volume from the lower left side wind tunnel and the lower right side wind tunnel exiting the lower space is substantially equivalent. The battery module of claim 1 , wherein the battery module further has a pair of wings and a pair of handles, wherein the pair of wings are respectively disposed on the left and right sides of the carrier plate. The sides extend outwardly and respectively protrude from the left and right sides of the box, and the pair of handles respectively extend upward from one of the pair of wings, and are respectively exposed on the left and right sides of the box. The battery module of the natural heat conduction heat dissipation according to claim 3, wherein the battery module further has a pair of wall hanging holes, wherein the pair of wall hanging holes are respectively disposed on one of the pair of wings, and Avoid the handles on the wing panels, respectively, and expose them to the left and right sides of the cabinet and keep them visible. The battery module of the natural heat conduction heat dissipation according to claim 4, wherein the battery module further has a grounding mechanism and a grounding conduction path, and the grounding mechanism is disposed on one of the pair of wings. The ground conducting path is located in the box, and the grounding mechanism is electrically coupled to the ground conducting path. The battery module of the natural heat conduction heat dissipation according to claim 5, wherein the cover plate has a first electrical coupling surface and a first joint portion, the left side plate, the right side plate, and the upper side plate And the second joint portion has a second electrical coupling surface and a second joint portion, the first joint portion is coupled to the second joint portion, and the cover plate is coupled to the left side panel, the right side panel, The at least one of the upper side plate and the lower side plate further electrically couple the first electrical coupling surface to the second electrical coupling surface to form the ground conductive path of the box. The battery module of the natural heat conduction heat dissipation according to claim 6, wherein the first joint portion is a screw seat, the second joint portion is a screw hole, and the first joint portion and the second joint portion are The joint is completed by screwing. The battery module of the natural heat conduction heat dissipation according to claim 1, wherein the carrier plate has a carrier wind tunnel; the heat generated by the upper battery pack heats the nearby air to form a third airflow. The third airflow flows out of the upper space through the upper side wind tunnel on the one hand, and flows into the upper space from the wind tunnel of the carrier plate on the other hand, the third air flow can dissipate heat from the upper battery pack; the lower battery pack The generated heat energy heats the nearby air to form a fourth airflow, and the fourth airflow is guided by the deflector on the one hand, and flows out of the lower space from the lower left side wind tunnel and the lower right side wind tunnel respectively. On the one hand, the wind tunnel from the carrier plate flows into the lower space, and the fourth airflow can dissipate heat from the lower battery pack. The battery module for heat dissipation according to claim 1, further comprising a circuit board extending in a direction substantially parallel to the carrier plate or the cover plate and spanning the deflector The upper half of the circuit board enters the upper space to electrically connect the upper battery pack, and the lower half of the circuit board enters the lower space to electrically connect the lower battery pack. The battery module for heat dissipation according to claim 1, wherein the carrier board uses a first material, the left side plate, the right side plate, the upper side plate, the lower side plate and the cover plate. A second material is used, the material strength of the first material being higher than the material strength of the second material. The battery module of the natural heat conduction heat dissipation according to the first aspect of the invention, wherein the upper side plate further has a dust shield, the dust shield is disposed above the upper side wind tunnel to block Ambient dust enters the upper side wind tunnel and directs the flow of the first wind flow and the third wind flow out of the upper side wind tunnel, respectively. The battery module for heat dissipation according to claim 1, wherein the upper side plate further has a supporting rib extending from one side to the other side of the upper side body for The body of the upper side panel provides support.