CN210015897U - Battery protection device and power battery box - Google Patents
Battery protection device and power battery box Download PDFInfo
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- CN210015897U CN210015897U CN201921282135.6U CN201921282135U CN210015897U CN 210015897 U CN210015897 U CN 210015897U CN 201921282135 U CN201921282135 U CN 201921282135U CN 210015897 U CN210015897 U CN 210015897U
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- fire extinguishing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model relates to a battery protection device and power battery box. The battery protection device comprises a battery box body, a battery drying mechanism and a battery fire extinguishing mechanism, wherein the battery drying mechanism and the battery fire extinguishing mechanism are arranged in the battery box body; the battery drying mechanism comprises at least one dryer arranged in the battery box body; each drier comprises a drying box which is arranged in the battery box body and provided with air holes, and a drying agent placed in the drying box; the battery fire extinguishing mechanism comprises at least one automatic fire extinguisher arranged in the battery box body; every automatic fire extinguisher is including locating the temperature detection sensor in the battery box to and with the fire extinguisher main part that temperature detection sensor is connected. The utility model discloses not only can reduce the humidity of incasement, can also eliminate the conflagration hidden danger of incasement, guarantee the safety of battery box.
Description
Technical Field
The utility model relates to a battery technology field especially relates to a battery protection device and power battery box.
Background
At present, global economy faces a huge energy crisis, and energy conservation, emission reduction and development of new energy capable of replacing fossil fuels are extremely urgent needs of human beings. In the face of the current domestic and even global increasingly strict exhaust emission standards and future energy crisis, various automobile manufacturers are researching and developing low-emission new energy technologies to adapt to the development trend, wherein pure electric vehicles are one of the fields researched and developed by various large automobile enterprises at present.
With the vigorous development of new energy industry, the power battery box is used more and more widely as a power source of an electric vehicle, and the safety requirement on the power battery box is higher and higher. The existing power battery box is generally designed to be of a closed structure, the protection level of IP67 can be achieved, and the waterproof effect is good. However, along with the change of environment, live time's extension, the temperature has great degree rising in the power battery box for the inside and outside difference in temperature of incasement is too big, and incasement moisture can gather gradually and condense into the drop of water, has the potential safety hazard to the high pressure in the whole battery box, and too high temperature also makes the battery box have the conflagration hidden danger moreover.
SUMMERY OF THE UTILITY MODEL
Based on this, the utility model provides a battery protection device and power battery box not only can reduce the humidity of incasement, can also eliminate the conflagration hidden danger of incasement, has guaranteed the safety of battery box.
In order to achieve the above object, the utility model provides a following technical scheme:
a battery protection device comprises a battery box body, a battery drying mechanism and a battery fire extinguishing mechanism, wherein the battery drying mechanism and the battery fire extinguishing mechanism are arranged in the battery box body;
the battery drying mechanism comprises at least one dryer arranged in the battery box body; each drier comprises a drying box which is arranged in the battery box body and provided with air holes, and a drying agent placed in the drying box;
the battery fire extinguishing mechanism comprises at least one automatic fire extinguisher arranged in the battery box body; every automatic fire extinguisher is including locating the temperature detection sensor in the battery box to and with the fire extinguisher main part that temperature detection sensor is connected.
Optionally, the drying box includes an opening box body arranged in the battery box body, and a box cover body arranged on the opening box body in a covering manner, and the drying agent is contained in a drying cavity formed by the opening box body and the box cover body in a surrounding manner.
Optionally, the side surface of the open box body or/and the top of the box cover body are provided with a plurality of air holes.
Optionally, the opening box body is detachably arranged at the bottom of the battery box body, and the box cover body is detachably arranged at the top of the opening box body in a covering mode.
Optionally, the fire extinguisher main part is including locating in the battery box and holding the fire extinguishing container of fire extinguishing agent, and locate fire extinguishing nozzle on the fire extinguishing container, fire extinguishing nozzle with temperature detect sensor is connected.
Optionally, the automatic fire extinguisher further comprises a fire extinguishing switch connected with the temperature detection sensor, and the fire extinguishing switch is connected with the fire extinguishing nozzle.
Optionally, the fire extinguishing container is vertically arranged at the bottom or the middle part of the battery box body, and the fire extinguishing nozzle is vertically arranged at the top of the fire extinguishing container.
Optionally, the battery box body comprises a box body main body and a plurality of circuit boards which are arranged in the box body main body and have a heat insulation function;
the box body main body is a plurality of battery accommodating cavities, and the dryer or/and the automatic fire extinguisher are arranged in part or all of the battery accommodating cavities.
Optionally, the battery box body comprises a box body main body and a battery external interface structure arranged at one end of the box body main body, and the dryer and the automatic fire extinguisher are arranged at the position of the battery external interface structure.
Furthermore, the utility model also provides a power battery box, include as above battery protection device.
The utility model provides an among the technical scheme, through set up battery drying mechanism and battery fire extinguishing mechanism in the battery box, can not only provide a dry environment for the battery box through battery drying mechanism, can also put out a fire the condition of mechanism initial stage to the battery box in effectively putting out a fire to the battery to protect electrical components in the battery box, fall to the loss minimum.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic view of a three-dimensional structure of a battery box of a battery protection device according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a battery protection device (when a top plate of a battery box is removed) according to an embodiment of the present invention;
fig. 3 is a schematic perspective view of a battery protection device (when the top plate and the side plate of the battery box are removed) according to an embodiment of the present invention;
fig. 4 is an exploded schematic view of a dryer of a battery protection device according to an embodiment of the present invention;
fig. 5 is a schematic perspective view of an automatic fire extinguisher with a battery protection device according to an embodiment of the present invention;
fig. 6 is a schematic view of a three-dimensional structure of an automatic fire extinguisher with a battery protection device according to an embodiment of the present invention.
The reference numbers illustrate: 100-battery box, 110-box body, 120-circuit board, 200-dryer, 210-open box, 212-drying chamber, 220-box cover, 222-air vent, 300-automatic fire extinguisher, 310-fire extinguishing container, 320-fire extinguishing nozzle, 330-fire extinguishing switch.
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front, back, top and bottom … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
At present, the battery box body adopted by the electric vehicle has the following defects: moisture-proof design is not arranged in the battery box body, moisture and moisture in the battery box body can generate potential safety hazards to high voltage in the battery box body, and all exposed electrical components in the box body can be rusted, accelerated aging is accelerated, overcurrent capacity is reduced and the like; the fire extinguishing design is not arranged in the battery box body, and the device in the box body cannot be effectively protected under the condition that fire occurs in the battery box body. In order to solve the technical problem, the utility model provides a battery protection device and power battery box.
As shown in fig. 1 to fig. 3, the battery protection device of the present invention includes a battery box 100, and a battery drying mechanism and a battery fire extinguishing mechanism disposed in the battery box 100. Through set up battery drying mechanism and battery fire extinguishing mechanism in battery box 100, can not only provide a dry environment for battery box 100 through battery drying mechanism, can also put out a fire through the battery and construct the condition of the initial stage of catching a fire in to battery box 100 and effectively put out a fire to electronic components protects in battery box 100, falls to the loss to minimumly.
Specifically, the above-described battery drying mechanism may include at least one dryer 200 provided in the battery case 100. By providing one or more dryers 200 in the battery case 100, the interior of the battery case 100 can be dried, and the interior of the battery case 100 can be kept in a dry state. Therefore, water drops cannot be condensed in the battery box body 100 due to the overlarge temperature difference between the inside and the outside of the battery box body, and potential safety hazards cannot be caused to high pressure in the box body.
Further, as shown in fig. 4, each of the driers 200 may include a drying case having a vent hole provided in the battery case 100, and a drying agent placed in the drying case. The desiccant placed in the drying box can absorb moisture and water in the battery box 100 through the air holes 222 on the drying box, so as to avoid condensation of water beads. Furthermore, the drying box may include an open box body 210 disposed in the battery case 100, and a box cover 220 covering the open box body 210, and the drying agent is accommodated in a drying chamber 212 defined by the open box body 210 and the box cover 220. Through setting up the drying box into the structural style that opening box body 210 and box cover body 220 combined together, be convenient for open the drying box to be convenient for take out the drier from the drying box or place the drier in the drying box, be convenient for change the drier, make the drying box keep good drying capacity all the time, thereby make the interior unanimous dry environment that keeps of battery box 100. Furthermore, the side surface of the open box body 210 and/or the top of the box cover 220 are provided with a plurality of ventilation holes 222, so that moisture can be absorbed from the side surface of the open box body 210 or the top of the box cover 220, and moisture can be absorbed from the side surface of the open box body 210 and the top of the box cover 220 at the same time.
The open case 210 is detachably attached to the bottom of the battery case 100, and the case cover 220 is detachably attached to the top of the open case 210. Since moisture and water are easily accumulated to the bottom of the battery case 100, the moisture and water in the case can be adsorbed from the bottom of the battery case 100 by installing the open case 210 at the bottom of the battery case 100, and the adsorption and drying effects are better. Moreover, by detachably mounting the open cassette 210 at the bottom of the battery case 110, the detachable cassette mounting of the entire battery case 100 is facilitated; and the opening and closing of the drying box is facilitated by detachably attaching the box cover 220 to the top of the open box body 210. Further, in addition to the drying cartridges being installed at the bottom of the battery case 100, the drying cartridges may be installed at the middle or top of the battery case 100, or may be simultaneously disposed at least two positions in the bottom, middle, and top of the battery case 100. In addition, the cover 220 may be disposed on the side of the open box 210, in addition to the top of the open box 210.
Further, the above battery fire extinguishing mechanism may include at least one automatic fire extinguisher 300 provided in the battery case 100. As shown in fig. 5 to 6, when a fire occurs in the battery box 100, one or more automatic fire extinguishers 300 are installed in the battery box 100, so that the fire can be automatically extinguished, the fire hazard in the battery box 100 can be extinguished at an initial stage, and the fire can be prevented from being enlarged to cause great danger and loss. Specifically, each automatic fire extinguisher 300 may include a temperature detection sensor (not shown in the drawings) provided in the battery case 100, and an extinguisher body connected to the temperature detection sensor. The temperature inside the battery case 100 can be detected by the temperature detection sensor to determine whether the inside of the case catches fire, and when the inside of the case catches fire, the fire extinguisher main body is triggered to extinguish the fire inside the case.
Further, the fire extinguisher main body may include a fire extinguishing container 310 provided in the battery case 100 and containing a fire extinguishing agent, and a fire extinguishing nozzle 320 provided on the fire extinguishing container 310, the fire extinguishing nozzle 320 being connected to the temperature detecting sensor. When the temperature detecting sensor detects that the temperature in the box is too high, the fire extinguishing nozzle 320 can be opened, and the fire extinguishing agent in the fire extinguishing container 310 is rapidly sprayed out of the fire extinguishing nozzle 320 to extinguish the open fire in the box. Also, the automatic fire extinguisher may further include a fire extinguishing switch 330 connected to the temperature detecting sensor, the fire extinguishing switch 330 being connected to the fire extinguishing nozzle 320. The fire extinguishing switch 330 controls the opening of the fire extinguishing nozzle 320 so that the fire extinguishing agent is discharged from the fire extinguishing container 310 into the tank when the temperature sensor detects that the temperature in the tank is too high.
In this embodiment, the temperature detection sensor may be a self-generating temperature sensing probe; the fire extinguishing agent is aerosol fire extinguishing agent; the fire extinguishing switch 330 may be configured to control the burner. And the control eruption device is started by electricity, a low-voltage 12V power supply is provided by a DC (direct current converter), and the control eruption device is matched with the self-generating temperature-sensing probe for use. When the self-generating temperature-sensing probe detects that the temperature in the box is overhigh (namely fire occurs), the control sprayer connected with the self-generating temperature-sensing probe sends a starting signal to the fire extinguishing nozzle 320, the aerosol fire extinguishing agent in the fire extinguishing container 310 is activated, oxidation-reduction reaction occurs to form a large amount of agglutination type fire extinguishing aerosol, the aerosol is sprayed out of the fire extinguishing nozzle 320 and rapidly diffused into the whole box body, and the whole box body is completely submerged for fire extinguishing.
Also, the fire extinguishing container 310 may be vertically provided at the bottom or the middle of the battery case 100, and the fire extinguishing nozzle 320 is vertically provided at the top of the fire extinguishing container 310. Through the vertical setting of container 310 that will put out a fire in battery box 100 downside position to setting up fire extinguishing nozzle 320 at container 310 top of putting out a fire, can spout from the bottom half to the top and establish the fire extinguishing agent, the fire extinguishing agent of being convenient for is from the top to whole box diffusion, and it is more reliable and fast to put out a fire. Alternatively, the fire extinguishing container 310 may be provided on the top of the battery cell, and the fire extinguishing nozzle 320 may be provided on the side or bottom of the fire extinguishing container 310.
In addition, as shown in fig. 1 to 3, the battery box 100 may include a box body 110, and a plurality of circuit boards 120 disposed in the box body 110 and having a heat insulation function, the plurality of circuit boards 120 may partition the box body 110 into a plurality of battery receiving cavities, and a dryer 200 or/and an automatic fire extinguisher 300 may be disposed in some or all of the battery receiving cavities. Through set up a plurality of circuit boards 120 in battery box 100 with battery box 100 internal partition a plurality of batteries hold the chamber, not only can be used for connecting various electronic components and electricity core, still be convenient for keep apart various electronic components and electricity core, can play thermal-insulated insulating effect, can further prevent to take place the conflagration in the box and prevent stretching of conflagration in the box. Moreover, the dryer 200 and the automatic fire extinguisher 300 can be arranged in one battery accommodating cavity in the box body, the dryer 200 and the automatic fire extinguisher 300 can be arranged in a plurality of battery accommodating cavities in the box body, the dryer 200 can be arranged in some battery accommodating cavities, the automatic fire extinguisher 300 can be arranged in other battery accommodating cavities, the box body can be dried from a plurality of positions, and the box body can be extinguished from a plurality of positions, so that the safety and the reliability are higher.
In addition, the battery case 100 may include a battery external connection structure provided at one end of the case body 110, and the dryer 200 and the automatic fire extinguisher 300 may be provided at the battery external connection structure. Namely, the dryer 200 and the automatic fire extinguisher 300 can be arranged at the position where the battery box 100 is connected with the outside (external battery interface structure), the wiring is more, the number of electronic components is more, the moist environment more easily affects the electronic components, the fire is more easily generated, and the dryer 200 and the automatic fire extinguisher 300 are arranged at the position with stronger pertinence.
Furthermore, the utility model also provides a power battery box, include as above battery protection device. The power battery box comprises the battery box body and a plurality of battery modules (battery cores) arranged in the battery box body. Moreover, the battery modules can be respectively arranged in a plurality of battery accommodating cavities formed by the circuit board in an isolated mode and are connected with the circuit board.
In the technical scheme provided by the utility model, a dry environment can be provided for the interior of the battery box body, and the potential safety hazard caused by large moisture in the box body is reduced; the fire can be quickly extinguished under the condition of the initial stage of the fire in the box, no secondary damage is caused to the electrical components in the box, the loss is minimized, and the battery and the components in the box are effectively protected. In addition, the use cost is low, the structure is simple, the occupied space is small, and the installation is convenient.
The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.
Claims (10)
1. A battery protection device is characterized by comprising a battery box body, a battery drying mechanism and a battery fire extinguishing mechanism, wherein the battery drying mechanism and the battery fire extinguishing mechanism are arranged in the battery box body;
the battery drying mechanism comprises at least one dryer arranged in the battery box body; each drier comprises a drying box which is arranged in the battery box body and provided with air holes, and a drying agent placed in the drying box;
the battery fire extinguishing mechanism comprises at least one automatic fire extinguisher arranged in the battery box body; every automatic fire extinguisher is including locating the temperature detection sensor in the battery box to and with the fire extinguisher main part that temperature detection sensor is connected.
2. The battery protection device of claim 1, wherein the drying box comprises an open box body arranged in the battery box body, and a box cover body arranged on the open box body in a covering manner, and the drying agent is contained in a drying cavity formed by the open box body and the box cover body in a surrounding manner.
3. The battery protection device of claim 2, wherein a plurality of air holes are formed on the side surface of the open box body or/and the top of the box cover body.
4. The battery protection device of claim 2, wherein the open box is detachably mounted at the bottom of the battery box, and the box cover is detachably mounted at the top of the open box.
5. The battery protection device according to claim 1, wherein the fire extinguisher main body includes a fire extinguishing container provided in the battery case and containing a fire extinguishing agent, and a fire extinguishing nozzle provided on the fire extinguishing container, the fire extinguishing nozzle being connected to the temperature detection sensor.
6. The battery protection device according to claim 5, wherein the automatic fire extinguisher further comprises a fire extinguishing switch connected to the temperature detection sensor, the fire extinguishing switch being connected to the fire extinguishing nozzle.
7. The battery protection device of claim 5, wherein the fire extinguishing container is vertically arranged at the bottom or the middle part of the battery box body, and the fire extinguishing nozzle is vertically arranged at the top of the fire extinguishing container.
8. The battery protection device according to any one of claims 1 to 7, wherein the battery case includes a case main body, and a plurality of circuit boards provided in the case main body and having a heat insulating function;
the box body main body is a plurality of battery accommodating cavities, and the dryer or/and the automatic fire extinguisher are arranged in part or all of the battery accommodating cavities.
9. The battery protection device of any one of claims 1 to 7, wherein the battery box comprises a box body and a battery external interface structure arranged at one end of the box body, and the dryer and the automatic fire extinguisher are arranged at the position of the battery external interface structure.
10. A power cell box, characterized by comprising a battery protection device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921282135.6U CN210015897U (en) | 2019-08-08 | 2019-08-08 | Battery protection device and power battery box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921282135.6U CN210015897U (en) | 2019-08-08 | 2019-08-08 | Battery protection device and power battery box |
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| Publication Number | Publication Date |
|---|---|
| CN210015897U true CN210015897U (en) | 2020-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921282135.6U Active CN210015897U (en) | 2019-08-08 | 2019-08-08 | Battery protection device and power battery box |
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| CN (1) | CN210015897U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584791A (en) * | 2020-06-22 | 2020-08-25 | 昆山宝创新能源科技有限公司 | Battery module |
-
2019
- 2019-08-08 CN CN201921282135.6U patent/CN210015897U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111584791A (en) * | 2020-06-22 | 2020-08-25 | 昆山宝创新能源科技有限公司 | Battery module |
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