CN219512298U - Storage battery monitoring equipment - Google Patents

Abstract

The utility model relates to storage battery monitoring equipment, which comprises a shell, a heat radiation assembly and a ventilation assembly, wherein the shell is provided with a heat radiation groove provided with a plurality of heat radiation fins which are parallel to each other, the heat radiation assembly is arranged in the shell relative to the heat radiation groove, the storage battery monitoring equipment comprises a support rod and a plurality of sealing sheets, the sealing sheets are connected with the support rod in a rotatable mode, the width of each sealing sheet is larger than the distance between every two adjacent sealing sheets, the ventilation assembly comprises an air suction device and an air inlet pipeline, and the air suction device is configured to suck air outside the shell into the shell, so that the internal air pressure is increased to push the sealing sheets to rotate. In this equipment, when inside atmospheric pressure risees, the sealing fin receives the air current to promote upwards to rotate, opens the heat dissipation groove, and the sealing fin does not receive the air current when need not to dispel the heat and promotes, and the whereabouts is closed with adjacent sealing fin laminating, turns over the circulation of realizing the inside air current of equipment and blocks through the sealing fin, prevents that dust impurity from entering inside the device through the heat dissipation groove when not dispelling the heat, guarantees monitoring facilities to the normal monitoring of battery.

Description

Storage battery monitoring equipment

Technical Field

The utility model relates to the technical field of storage battery monitoring, in particular to storage battery monitoring equipment.

Background

The device for converting chemical energy into electric energy is called a chemical battery, which is generally called a battery for short, and after discharging, the internal active substances can be regenerated in a charging mode, namely, the electric energy is stored into chemical energy, and when discharging is needed, the chemical energy is converted into electric energy again, and the battery is called a storage battery, which is also called a secondary battery or a lead-acid accumulator jar. The nuclear level storage battery is used as very key equipment in a nuclear power plant, a rich liquid type lead-acid storage battery with the safety level meeting the 1E level standard is required to be adopted, and meanwhile, in order to ensure the safe and normal operation of the storage battery, real-time data are required to be monitored in the production process.

Because nuclear level battery monitoring devices need to dispel the heat in the use, most nuclear level battery monitoring devices in the related art are through setting up like parts that are used for radiating such as exhaust fan on monitoring devices, and directly outwards discharge steam through the exhaust fan, will lead to external dust impurity to get into inside the nuclear level battery monitoring devices through the thermovent that monitoring devices set up when monitoring devices work or unoperated state all easily, can reduce nuclear level battery monitoring devices's life in the past, influence the monitoring to nuclear level battery.

Disclosure of Invention

Based on this, it is necessary to be directed against the problem that external dust impurity easily gets into nuclear level battery monitoring device through nuclear level battery monitoring device's thermovent region, influences monitoring device life-span, provides one kind can seal the thermovent region under the state that battery monitoring device is inoperative to make dust impurity be difficult for getting into the inside battery monitoring device shell.

A battery monitoring device comprising:

the shell is provided with a heat dissipation groove, and a plurality of mutually parallel heat dissipation fins are arranged in the heat dissipation groove;

the heat dissipation assembly is arranged inside the shell and opposite to the heat dissipation groove, the heat dissipation assembly comprises a support assembly and a plurality of sealing sheets, the support assembly at least comprises two support rods which are oppositely arranged, the sealing sheets are rotatably connected between the two support rods which are oppositely arranged, and the width of each sealing sheet is larger than the distance between every two adjacent sealing sheets;

the ventilation assembly comprises an air extracting device and an air inlet pipeline, wherein the air inlet pipeline is arranged on the shell, the air extracting device is configured to be capable of sucking air outside the shell into the shell, and the air pressure inside the shell is increased to push the sealing piece to rotate.

In one embodiment, the heat dissipation assembly further comprises a movable shaft, and the support rod is uniformly provided with a plurality of mounting shaft holes along the length direction of the rod body, and the movable shaft is matched with the mounting shaft holes to rotationally connect the sealing sheets with the support rod.

In one embodiment, the inner side surface of the sealing sheet is provided with a sealing gasket, the sealing gasket is arranged on the end surface of the sealing sheet far away from the supporting rod, and the sealing gasket extends along the length direction of the sealing sheet so as to improve the sealing performance between the adjacent sealing sheets.

In one embodiment, the air extractor comprises an exhaust fan, a filter plate and a supporting plate, wherein the exhaust fan is arranged inside the shell and is connected with the shell in a rotatable mode, the filter plate is embedded in the shell wall of the shell, the rotating output shaft of the exhaust fan penetrates through one end of the filter plate to be connected with the supporting plate, the exhaust fan drives the supporting plate to rotate, and a dustproof brush is arranged on one side of the supporting plate.

In one embodiment, the filter plate protrudes outwards towards one side of the support plate to form an arc shape, and a first elastic piece is arranged between the support plate and the dustproof brush oppositely, so that the dustproof brush is attached to the filter plate.

In one embodiment, the battery monitoring device further comprises a detection assembly, the detection assembly comprises a circuit board, and an internal resistance, electrolyte tightness detection module and an electrolyte temperature detection module which are arranged on the circuit board, and the circuit board is arranged inside the shell.

In one embodiment, the shell is provided with a wire insertion hole, the detection assembly further comprises a voltage detection module, a liquid level detection module and a detection wire, the voltage detection module, the liquid level detection module and the detection wire are arranged on the circuit board, one end of the detection wire is connected with the voltage detection module and the liquid level detection module, and the other end of the detection wire is connected with the storage battery through the wire insertion hole.

In one embodiment, the bottom of the shell is provided with a bottom plate, the bottom plate is detachably connected with the shell and the shell is communicated with the bottom plate, the middle of the bottom plate is provided with a concave accommodating groove, the bottom of the accommodating groove is embedded with a ventilation plate, and the interior of the accommodating groove is filled with moisture-proof particles.

In one embodiment, the battery monitoring device further comprises a buffer assembly arranged at the bottom of the shell, the buffer assembly comprises a shock absorption rod, a base sleeve and a second elastic piece, an inserting groove matched with the shock absorption rod is formed in the middle of the base sleeve, and the second elastic piece is arranged between the shock absorption rod and the inserting groove.

In one embodiment, the battery monitoring device further comprises a shielding assembly, the shielding assembly comprises a first baffle and a plurality of mounting posts, the first baffle is arranged on the housing above the ventilation assembly, and the plurality of mounting posts are uniformly arranged between the first baffle and the housing, so that the first baffle is stably arranged above the ventilation assembly.

Above-mentioned battery monitoring facilities, including the shell, radiator unit and subassembly of taking a breath, through set up the heat sink that has a plurality of fin that are parallel to each other on the shell, can discharge monitoring facilities inside heat in the use through the heat sink, the subassembly of taking a breath includes air extraction device and admission line, the intake pipe sets up in the shell, make the inside outside atmospheric pressure of monitoring facilities the same, so that air extraction device can inhale the shell outside inside, make the inside atmospheric pressure increase of shell, radiator unit sets up in the shell inside and set up for the heat sink, specifically include supporting component and a plurality of sealing fin, wherein supporting component includes the bracing piece of two relative settings at least, a plurality of sealing fin all with rotatable mode with connect between the bracing piece of two relative settings, the width of sealing fin is greater than the distance between the adjacent sealing fin, through setting up a plurality of sealing fin that can follow bracing piece pivoted, when the inside atmospheric pressure of monitoring facilities risees, thereby open the sealing fin air current promotes along the bracing piece upwards, when monitoring facilities need not to carry out the heat dissipation to inside, the sealing fin does not receive the air current to promote, receive the gravity factor to influence simultaneously, the sealing fin falls naturally down and is adjacent sealing fin and is closed with the sealing fin, thereby seal up the inside the monitoring facilities is closed and the dust flow is sealed through the monitoring facilities, the inside the monitoring facilities is sealed, the dust is sealed through the inside the monitoring facilities is sealed, the dust is sealed to the inside has been opened, the dust has been reduced, the dust is sealed inside the battery has been sealed dust inside the dust has been sealed inside the battery and dust has the inside the battery and has the dust air dust has the dust inside the dust has and has the dust air dust has and has the dust inside dust and has the dust and dust to the dust.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a battery monitoring device;

FIG. 2 is a partial cross-sectional view of a mid-heat sink assembly of the battery monitoring device;

FIG. 3 is a schematic diagram of the base plate structure of the battery monitoring device;

FIG. 4 is a cross-sectional view of a mid-ventilation assembly of the battery monitoring device;

FIG. 5 is an enlarged view of a portion of the battery monitoring device at A in FIG. 4;

fig. 6 is a schematic structural diagram of a circuit board of the battery monitoring device.

Reference numerals: 100. a housing; 110. a heat sink; 111. a heat sink; 120. a plug wire hole; 130. a bottom plate; 131. a receiving groove; 132. a ventilation plate; 200. a heat dissipation assembly; 210. a support rod; 211. mounting a shaft hole; 220. a sealing sheet; 230. a movable shaft; 240. a sealing gasket; 300. a ventilation assembly; 310. an air extracting device; 311. an exhaust fan; 312. a support plate; 313. a filter plate; 314. a dust-proof brush; 315. a first elastic member; 320. an air intake duct; 400. a detection assembly; 410. a circuit board; 411. internal resistance; 412. an electrolyte density detection module; 413. an electrolyte temperature detection module; 414. a voltage detection module; 415. a liquid level detection module; 500. a buffer assembly; 510. a shock-absorbing rod; 520. a base sleeve; 521. a plug-in groove; 530. a second elastic member; 600. a shielding assembly; 610. a first baffle; 620. and (5) mounting a column.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

Referring to fig. 1 to 6, an embodiment of the present utility model provides a battery monitoring apparatus, including a housing 100, a heat dissipation assembly 200 and a ventilation assembly 300, wherein the housing 100 is provided with a heat dissipation groove 110, a plurality of heat dissipation fins 111 parallel to each other are provided in the heat dissipation groove 110, the heat dissipation assembly 200 is disposed inside the housing 100 and is disposed opposite to the heat dissipation groove 110, the heat dissipation assembly 200 includes a support assembly and a plurality of sealing fins 220, the support assembly includes at least two support rods 210 disposed opposite to each other, the plurality of sealing fins 220 are rotatably connected between the two support rods 210, the width of the sealing fins 220 is greater than the distance between the adjacent sealing fins 220, the ventilation assembly 300 includes an air suction device 310 and an air intake pipe 320, the air suction pipe is disposed inside the housing 100, and the air suction device 310 is configured to suck air outside the housing 100 into the housing 100 to increase the air pressure inside the housing 100 to push the sealing fins 220 to rotate.

The above-mentioned battery monitoring device includes a housing 100, a heat dissipation assembly 200 and a ventilation assembly 300, wherein the heat dissipation assembly 110 is disposed on the housing 100 and has a plurality of heat dissipation fins 111 parallel to each other, the heat dissipation assembly 110 is used for exhausting the heat inside the monitoring device during use, the ventilation assembly 300 includes an air suction device 310 and an air intake pipe 320, the air intake pipe is disposed on the housing 100, so that the air pressure inside and outside the monitoring device is the same, the air suction device 310 can suck the air outside the housing 100 into the housing 100, the air pressure inside the housing 100 is increased, the heat dissipation assembly 200 is disposed inside the housing 100 and is disposed opposite to the heat dissipation assembly 110, and specifically includes a support assembly and a plurality of sealing fins 220, wherein the support assembly includes at least two support bars 210 disposed opposite to each other, the plurality of sealing fins 220 are rotatably connected between the two support bars 210 disposed opposite to each other, the width of the sealing sheets 220 is larger than the distance between the adjacent sealing sheets 220, by arranging a plurality of sealing sheets 220 capable of rotating along the supporting rods 210, when the air pressure in the monitoring equipment is increased, the sealing sheets 220 are pushed by air flow to rotate upwards along the supporting rods 210 so as to open the heat dissipation grooves 110, when the monitoring equipment does not need to dissipate heat in the monitoring equipment, the sealing sheets 220 are not pushed by the air flow and are influenced by gravity factors, the sealing sheets 220 naturally drop downwards to be attached to the adjacent sealing sheets 220 so as to close the heat dissipation grooves 110, the circulation and blocking of the air flow in the monitoring equipment of the storage battery are realized through the turnover of the sealing sheets 220, external dust impurities are prevented from entering the monitoring equipment through the heat dissipation grooves 110 formed in the shell 100 when the monitoring equipment works or is in a non-working state, the influence of the dust impurities on the service life of the monitoring equipment is reduced, the normal monitoring of the storage battery by the storage battery monitoring equipment is ensured.

Referring to fig. 2, in some embodiments, the heat dissipation assembly 200 further includes a movable shaft 230, and a plurality of mounting shaft holes 211 are uniformly formed on the support rod 210 along the length direction of the rod, and the movable shaft 230 cooperates with the mounting shaft holes 211 to rotatably connect the sealing plate 220 with the support rod 210.

Further, the supporting rods 210 are disposed inside the housing 100 corresponding to the heat dissipation grooves 110, in this embodiment, in order to ensure that the supporting rods 210 and the sealing sheets 220 realize stable overturning, two supporting rods 210 are symmetrically disposed inside the housing 100, the plurality of movable shafts 230 are disposed on the same side of the supporting rods 210, that is, disposed on the inner side of the supporting rods 210 towards the sealing sheets 220, the sealing sheets 220 are provided with sealing through holes adapted to the movable shafts 230 on both sides towards the movable shafts 230, and the sealing sheets 220 are rotatably connected between the supporting rods 210 through the cooperation of the movable shafts 230, the mounting shaft holes 211 and the sealing through holes, so that the sealing sheets 220 realize stable overturning action.

In some embodiments, the inner side of the sealing plate 220 is provided with a sealing pad 240, the sealing pad 240 is disposed on the end surface of the sealing plate 220 far away from the supporting rod 210, and the sealing pad 240 extends along the length direction of the sealing plate 220, so as to improve the tightness between the adjacent sealing plates 220.

Further, when the monitoring device does not need to radiate heat inside the casing 100, the sealing sheet 220 is not pushed by air flow, and is influenced by gravity, the sealing sheet 220 naturally drops downwards to be attached to the adjacent sealing sheet 220, and by arranging the sealing pad 240, when the sealing sheet 220 is mutually overlapped and attached to the adjacent sealing sheet 220, the sealing pad 240 can be attached to the lower sealing sheet 220 more tightly, so that the tightness between the adjacent sealing sheets 220 is further improved.

Referring to fig. 3, in some embodiments, the air extractor 310 includes an air extractor 311, a filter plate 313 and a support plate 312, the air extractor 311 is disposed inside the housing 100 and is rotatably connected to the housing 100, the filter plate 313 is embedded in a wall of the housing 100, a rotation output shaft of the air extractor 311 penetrates through one end of the filter plate 313 to be connected with the support plate 312, the air extractor 311 drives the support plate 312 to rotate, and a dust brush 314 is disposed on a side of the support plate 312 facing the filter plate 313.

Further, the supporting plate 312 is set to be flat sheet-shaped, the size of the supporting plate 312 is smaller than that of the top end of the housing 100, the supporting plate 312 is provided with a dust brush 314 which is matched with the size of the supporting plate 312 towards the inner side of the filter plate 313, when the exhaust fan 311 in the air extractor 310 is started, the exhaust fan 311 extracts the outside air of the housing to the inside of the housing 100 to radiate heat to the internal components of the housing 100, in the radiating process, the outside air enters the inside of the housing 100 after being filtered by the filter plate 313, dust impurities entering the inside of the housing 100 are reduced, meanwhile, the rotation of the exhaust fan 311 drives the supporting plate 312 to drive the dust brush 314 to rotate, the dust brush 314 rotates to scrape and clean the impurities deposited above the filter plate 313, the filter plate 313 is prevented from being blocked, and the radiating efficiency is improved.

In some embodiments, the filter plate 313 protrudes outwards towards one side of the support plate 312 to form an arc shape, and a first elastic member 315 is disposed between the support plate 312 and the dust brush 314, so that the dust brush 314 is attached to the filter plate 313.

Further, the casing 100 is adapted to the filter plate 313 toward one side of the support plate 312, and protrudes outwards to form an arc shape, when the dust brush 314 rotates along with the support plate 312, the dust brush 314 always has a downward elastic force due to the first elastic member 315 in the rotating process, so that the dust brush is tightly attached to the upper side surface of the filter plate 313 protruding outwards to scrape and clean dust impurities attached above the filter plate 313, and the cleaning effect of the dust brush 314 is improved.

Referring to fig. 6, in some embodiments, the battery monitoring apparatus further includes a detection assembly 400, the detection assembly 400 including a circuit board 410 and an internal resistor 411, an electrolyte density detection module 412, and an electrolyte temperature detection module 413 disposed on the circuit board 410, the circuit board 410 being disposed inside the housing 100.

Further, the circuit board 410 is fixedly connected to the upper portion of the interior of the casing 100, the internal resistor 411 is arranged above the front face of the circuit board 410, the electrolyte density detection module 412 is arranged in the middle of the circuit board 410, the electrolyte temperature detection module 413 is arranged below the front face of the circuit board 410, and various types of detection can be performed on the rich liquid type lead-acid storage battery through the electrolyte density detection module 412, the electrolyte temperature detection module 413 and the voltage detection module 414.

Referring to fig. 1 and 6, in some embodiments, the housing 100 is provided with a wire insertion hole 120, and the detection assembly 400 further includes a voltage detection module 414, a liquid level detection module 415, and a detection wire disposed on the circuit board 410, where one end of the detection wire is connected to the voltage detection module 414 and the liquid level detection module 415, and the other end is connected to the battery through the wire insertion hole 120.

Further, the lower right side of the front of the housing 1001 is provided with a plug wire hole 120, and the voltage detection module 414 and the liquid level detection module 415 can further perform various detection on the flooded lead-acid battery through the plug wire hole 120.

Referring to fig. 4 and 5, in some embodiments, a bottom plate 130 is disposed at the bottom of the housing 100, the bottom plate 130 is detachably connected to the housing 100, and the housing 100 is communicated with the bottom plate 130, a concave accommodating groove 131 is disposed in the middle of the bottom plate 130, a ventilation plate 132 is embedded at the bottom of the accommodating groove 131, and moisture-proof particles are filled in the accommodating groove 131.

Further, the concave accommodating groove 131 is filled with moisture-proof particles, so that moisture in humid weather can be adsorbed, and after the moisture enters the inside of the housing 100, the moisture-proof particles can adsorb the moisture entering the inside of the housing 100 through the ventilation plate 132, so that excessive moisture is prevented from corroding and damaging electronic components in the housing 100.

In some embodiments, the battery monitoring device further includes a buffer assembly 500 disposed at the bottom of the housing 100, where the buffer assembly 500 includes a shock absorbing rod 510, a base sleeve 520, and a second elastic member 530, and an insertion slot 521 adapted to the shock absorbing rod 510 is disposed in the middle of the base sleeve 520, and the second elastic member 530 is disposed between the shock absorbing rod 510 and the insertion slot 521.

Further, by providing the shock absorbing rod 510 and the base and the second elastic member 530 which are matched with the shock absorbing rod 510, when the housing 100 is impacted by the outside, the shock absorbing rod 510 presses the second elastic member 530, and the second elastic member 530 contracts toward the insertion slot 521 and absorbs the impact force through elastic buffering, so that the housing 100 has a certain shock resistance.

Referring to fig. 1, in some embodiments, the battery monitoring apparatus further includes a shielding assembly 600, the shielding assembly 600 includes a first baffle 610 and a plurality of mounting posts 620, the first baffle 610 is disposed on the housing 100 above the ventilation assembly 300, and the plurality of mounting posts 620 are uniformly disposed between the first baffle 610 and the housing 100, so that the first baffle 610 is stably erected above the ventilation assembly 300.

Further, by arranging the first baffle 610, the protection exhaust fan 311 drives the support plate 312 to rotate, so as to prevent the air extractor 310 in the ventilation assembly 300 from being disturbed during operation, and improve the heat dissipation stability and safety of the monitoring device.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A battery monitoring apparatus, comprising:

a housing (100), wherein a heat dissipation groove (110) is arranged on the housing (100), and a plurality of heat dissipation fins (111) which are parallel to each other are arranged in the heat dissipation groove (110);

the heat dissipation assembly (200) is arranged inside the shell (100) and opposite to the heat dissipation groove (110), the heat dissipation assembly (200) comprises a support assembly and a plurality of sealing sheets (220), the support assembly at least comprises two support rods (210) which are oppositely arranged, the plurality of sealing sheets (220) are rotatably connected between the two support rods (210) which are oppositely arranged, and the width of each sealing sheet (220) is larger than the distance between the adjacent sealing sheets (220);

the ventilation assembly (300), the ventilation assembly (300) includes air extraction device (310) and air inlet pipeline (320), the intake pipe set up in shell (100), air extraction device (310) are configured to can with the outside air of shell (100) is inhaled inside shell (100), makes the inside atmospheric pressure of shell (100) increase in order to promote sealing piece (220) is rotatory.

2. The battery monitoring device according to claim 1, wherein the heat dissipation assembly (200) further comprises a movable shaft (230), a plurality of mounting shaft holes (211) are uniformly formed in the support rod (210) along the length direction of the rod body, and the movable shaft (230) is matched with the mounting shaft holes (211) to rotationally connect the sealing sheet (220) with the support rod (210).

3. The battery monitoring apparatus according to claim 1, wherein the inner side surface of the sealing sheet (220) is provided with a gasket (240), the gasket (240) is provided on an end surface of the sealing sheet (220) away from the support rod (210), and the gasket (240) is provided to extend in a longitudinal direction of the sealing sheet (220) to improve sealability between adjacent sealing sheets (220).

4. The battery monitoring device according to claim 1, wherein the air extractor (310) comprises an air extractor (311), a filter plate (313) and a supporting plate (312), the air extractor (311) is arranged inside the housing (100) and is connected with the housing (100) in a rotatable manner, the filter plate (313) is embedded in a wall of the housing (100), a rotating output shaft of the air extractor (311) penetrates through one end of the filter plate (313) to be connected with the supporting plate (312), the air extractor (311) drives the supporting plate (312) to rotate, and a dustproof brush (314) is arranged on one side of the supporting plate (312) facing the filter plate (313).

5. The battery monitoring device according to claim 4, wherein a side of the filter plate (313) facing the support plate (312) protrudes outwards in an arc shape, and a first elastic member (315) is disposed between the support plate (312) and the dust-proof brush (314) in a manner that the dust-proof brush (314) is attached to the filter plate (313).

6. The battery monitoring device of claim 1, further comprising a detection assembly (400), the detection assembly (400) comprising a circuit board (410) and an internal resistance (411), an electrolyte density detection module (412) and an electrolyte temperature detection module (413) disposed on the circuit board (410), the circuit board (410) being disposed inside the housing (100).

7. The battery monitoring device of claim 6, wherein a wire insertion hole (120) is provided in the housing (100), the detection assembly (400) further comprises a voltage detection module (414), a liquid level detection module (415), and a detection wire, which are provided on the circuit board (410), one end of the detection wire is connected to the voltage detection module (414) and the liquid level detection module (415), and the other end is connected to the battery through the wire insertion hole (120).

8. The battery monitoring device according to claim 1, wherein a bottom plate (130) is provided at the bottom of the housing (100), the bottom plate (130) is detachably connected with the housing (100) and the housing (100) is communicated with the bottom plate (130), a concave accommodating groove (131) is provided in the middle of the bottom plate (130), a ventilation plate (132) is embedded at the bottom of the accommodating groove (131), and moisture-proof particles are filled in the accommodating groove (131).

9. The battery monitoring device according to claim 1, further comprising a buffer assembly (500) disposed at the bottom of the housing (100), wherein the buffer assembly (500) comprises a shock absorbing rod (510), a base sleeve (520) and a second elastic member (530), an inserting groove (521) adapted to the shock absorbing rod (510) is disposed in the middle of the base sleeve (520), and the second elastic member (530) is disposed between the shock absorbing rod (510) and the inserting groove (521).

10. The battery monitoring device of claim 1, further comprising a shielding assembly (600), the shielding assembly (600) comprising a first baffle (610) and a plurality of mounting posts (620), the first baffle (610) disposed on the housing (100) above the ventilation assembly (300), the plurality of mounting posts (620) being disposed evenly between the first baffle (610) and the housing (100) such that the first baffle (610) is stably erected above the ventilation assembly (300).