CN110107690B - Sealing structure - Google Patents
Sealing structure Download PDFInfo
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- CN110107690B CN110107690B CN201910505413.8A CN201910505413A CN110107690B CN 110107690 B CN110107690 B CN 110107690B CN 201910505413 A CN201910505413 A CN 201910505413A CN 110107690 B CN110107690 B CN 110107690B
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- elastic sealing
- sealing piece
- convex part
- piece
- air pressure
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- 238000007789 sealing Methods 0.000 title claims abstract description 305
- 230000006835 compression Effects 0.000 claims abstract description 7
- 238000007906 compression Methods 0.000 claims abstract description 7
- 229920000459 Nitrile rubber Polymers 0.000 claims description 3
- 229920001084 poly(chloroprene) Polymers 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 239000004945 silicone rubber Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 6
- 239000004568 cement Substances 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/061—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with positioning means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/067—Split packings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/02—Sealings between relatively-stationary surfaces
- F16J15/06—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces
- F16J15/10—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing
- F16J15/104—Sealings between relatively-stationary surfaces with solid packing compressed between sealing surfaces with non-metallic packing characterised by structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
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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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention discloses a battery box body and box cover sealing structure, which comprises a box body, a box cover matched with the box body and a sealing structure for sealing the box body and the box cover, wherein the sealing structure is integrally arranged between the box body and the box cover; the sealing structure comprises a first convex part arranged on the box body and a second convex part arranged on the box cover, wherein the first convex part and the second convex part are matched with each other, a sealing body which is in compression fit with the first convex part and the second convex part is arranged between the first convex part and the second convex part, and the technical problems of low sealing performance and sealing reliability and easiness in air leakage of the battery box body sealing structure in the prior art are solved.
Description
Technical Field
The invention relates to the field of sealing structures, in particular to a sealing structure.
Background
The battery box and the main control box used by the pure electric automobile are required to reach the protection level of IP67 according to the national standard requirements, besides the parts on the box body need sealing positions, the battery box also has a main sealing position, namely the box cover is sealed with the box body, and the box cover needs to be frequently disassembled for detection or maintenance, so the sealing reliability is very important, and potential safety hazards can exist if the sealing performance of the box cover and the box body is poor. The battery box sealing strip in the prior art is mostly formed by connecting four sealing strips end to end, the sealing strip is not an integer, gaps are formed at the corner lapping positions among the sealing strips, gas leakage occurs easily at the gaps, and the overall tightness is greatly influenced. The Chinese patent application CN2015174926. X discloses a battery sealing box, wherein a concave sealing groove is formed in a box body, a sealing ring is arranged in the sealing groove, a convex rib matched with the sealing groove is arranged on a box cover, the convex rib is embedded into the sealing groove and is tightly pressed on the sealing ring, and the sealing effect can be improved to a certain extent by forming a sealing belt through the cooperation of the sealing groove, the sealing ring and the convex rib. However, when the pressure inside or outside the box body is increased, the box cover is pressed and easily swelled, so that the convex edges leave the sealing rings, the box body and the box cover are not in sealing fit any more, and gas or liquid leaks from the gaps, so that the overall tightness is affected.
Accordingly, the prior art is still in need of improvement and development.
Disclosure of Invention
The invention aims to provide a sealing structure to solve the technical problems of low sealing performance and sealing reliability and easiness in air leakage of a battery box sealing structure in the prior art.
The technical scheme of the invention is as follows:
The battery box body and box cover sealing structure comprises a box body, a box cover matched with the box body and a sealing structure for sealing the box body and the box cover, wherein the sealing structure is integrally arranged between the box body and the box cover; the sealing structure comprises a first convex part arranged on the box body and a second convex part arranged on the box cover, wherein the first convex part and the second convex part are matched with each other, and a sealing body which is in press fit with the first convex part and the second convex part in a sealing state is arranged between the first convex part and the second convex part; the sealing body comprises a base, a first elastic sealing piece and a second elastic sealing piece, wherein the first elastic sealing piece and the second elastic sealing piece extend outwards from the base, when the box body and the box cover are mutually folded and sealed, the first elastic sealing piece is mutually matched with the first convex part in a sealing mode, and the second elastic sealing piece is matched with the second convex part in a sealing mode.
The battery box body and box cover sealing structure comprises a first elastic sealing piece and a second elastic sealing piece, wherein the first elastic sealing piece comprises a first inner elastic sealing piece and a first outer elastic sealing piece; the second elastic sealing piece comprises a second inner elastic sealing piece and a second outer elastic sealing piece; the first inner elastic sealing piece and the first outer elastic sealing piece are matched with each other to form a first concave part, and the first concave part is matched with the first convex part to seal; the second inner elastic sealing piece and the second outer elastic sealing piece are matched with each other to form a second concave part, and the second concave part is matched with the second convex part to seal.
The battery box body and box cover sealing structure comprises a first inner elastic sealing piece, a second inner elastic sealing piece, a first inner elastic sealing piece and a second inner elastic sealing piece, wherein the fixed end of the first inner elastic sealing piece is intersected with the fixed end of the second inner elastic sealing piece; when the internal air pressure bearing surface is subjected to the internal air pressure, the first internal elastic sealing piece deforms to be tightly sealed with the first convex part under the driving of the internal air pressure, and the second internal elastic sealing piece deforms to be tightly sealed with the second convex part under the driving of the internal air pressure.
The battery box body and box cover sealing structure comprises a first outer elastic sealing piece, a second outer elastic sealing piece, a first air pressure bearing surface and a second air pressure bearing surface, wherein the fixed end of the first outer elastic sealing piece is intersected with the fixed end of the second outer elastic sealing piece; when the external air pressure bearing surface is subjected to external air pressure, the first external elastic sealing piece deforms to be tightly sealed with the first convex part under the driving of the external air pressure, and the second external elastic sealing piece deforms to be tightly sealed with the second convex part under the driving of the external air pressure.
The battery box body and box cover sealing structure is characterized in that the first elastic sealing piece, the second elastic sealing piece and the base are integrally arranged, the first inner elastic sealing piece and the first outer elastic sealing piece are integrally arranged to form the first elastic sealing piece, and the second inner elastic sealing piece and the second outer elastic sealing piece are integrally arranged to form the second elastic sealing piece.
The battery box body and box cover sealing structure comprises a battery box body and box cover sealing structure, wherein the two ends of a first elastic sealing piece are provided with pointed first gripping parts, the two ends of a second elastic sealing piece are provided with pointed second gripping parts, when the first elastic sealing piece deforms under the driving of internal or external air pressure and is tightly attached to the first convex part for sealing, the first gripping parts tightly press the two ends of the first convex part, and when the second elastic sealing piece deforms under the driving of internal or external air pressure and is tightly attached to the second convex part for sealing, the second gripping parts tightly press the two ends of the second convex part.
The battery box case lid seal structure, wherein, the middle part of outside atmospheric pressure loading face be provided with outside guiding gutter, outside guiding gutter set up in the stiff end of first outside elastic sealing piece with the stiff end intersection department of second outside elastic sealing piece, the middle part of inside atmospheric pressure loading face is provided with inside guiding gutter, inside guiding gutter set up in the stiff end of first inside elastic sealing piece with the stiff end intersection department of second inside elastic sealing piece.
The battery box body and box cover sealing structure is characterized in that the sealing body is one of a nitrile rubber sealing body or a silicone rubber sealing body or a chloroprene rubber sealing body.
The battery box body and box cover sealing structure, wherein the sealing structure is arranged around the edges of the box body and the box cover, the first protruding part is arranged around the edge of the top of the box body, and the second protruding part is arranged around the edge of the inner side of the box cover.
The invention has the beneficial effects that: according to the battery box body and box cover sealing structure, the sealing structure is respectively in sealing fit with the first convex part and the second convex part through the first elastic sealing piece and the second elastic sealing piece, when internal air pressure is born, the internal air pressure acts on the first elastic sealing piece and the second elastic sealing piece and deforms the first elastic sealing piece and the second elastic sealing piece, and the first elastic sealing piece and the second elastic sealing piece are respectively in tight sealing with the first convex part and the second convex part, so that the pressing force is increased; when bearing outside atmospheric pressure, outside atmospheric pressure acts on first outside elastic sealing piece and the outside elastic sealing piece of second and makes it take place deformation, respectively with first convex part and second convex part are hugged closely sealedly, and the clamp force increases, turns into the seal body with the inside and outside atmospheric pressure of box to the clamp force of box case lid convex part, has brought very excellent sealed effect and sealing performance, and the case lid can bulge when having solved the atmospheric pressure in the battery case body of prior art and has led to the incasement gas to escape, and seal structure sealing performance and sealing reliability are not high, easy technical problem of gas leakage.
Drawings
FIG. 1 is a prior art battery case body and case cover sealing structure;
fig. 2 is a perspective view showing the overall structure of a battery case adopting the present invention;
fig. 3 is a front view of a battery box employing the present invention;
FIG. 4 is a cross-sectional view taken along the direction A-A in FIG. 3;
Fig. 5 is an enlarged view at B in fig. 4;
FIG. 6 is a schematic view of the seal body of the present invention;
FIG. 7 is a schematic view of the structure of the first elastic sealing plate according to the present invention;
Fig. 8 is a schematic structural view of a second elastic sealing sheet in the present invention.
Description of the drawings
A first convex portion 1; a second convex portion 2; a sealing body 3; a base 30; a first elastic sealing piece 31; a first inner elastic sealing piece 311; a first outer resilient sealing sheet 312; a first grip 313; a second elastic sealing piece 32; a second inner elastic sealing piece 321; a second outer elastic sealing piece 322; a second grip portion 323; a first concave portion 33; a second recess 34; an external air pressure bearing surface 35; an inner air pressure bearing surface 36.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clear and clear, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
In addition, if there is a description of "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 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 addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present invention.
Referring to fig. 1, the sealing structure of the box body and the box cover of the battery box in the prior art is to paste sealing strips at each side of the box cover, the four sealing strips are connected end to end, the sealing strips have certain elasticity, and the protection requirement of IP67 is met in a pressing mode, but the following problems exist in the practical use and application process: because the four sealing strips are connected end to end and not in a whole, gaps are formed at the positions of the corner overlapping edges, and even if glass cement is injected at the gaps, the glass cement is difficult to be completely injected to the bottom, so that the gaps are common air leakage positions; because the case lid area is big, when the atmospheric pressure in the box risees (for example with the gas tightness of aerifing the detection box), the case lid can bulge, and the gas in the case can be squeezed out from the position of the uncompacted sealing strip of bulge, and the whole sealing performance of seal structure of prior art is not high, and sealed reliability remains to improve, has certain potential safety hazard.
In order to solve the above technical problems, referring to fig. 2-4, the present invention provides a sealing structure for a battery case body and a case cover, which comprises a case body 4, a case cover 5 matched with the case body 4, and a sealing structure for sealing the case body 4 and the case cover 5, wherein the sealing structure is integrally arranged between the case body 4 and the case cover 5, and the sealing structure is arranged around the edges of the case body 4 and the case cover 5. In the embodiment, the sealing structure is integrally arranged around the edges of the box body 4 and the box cover 5, and compared with the mode that four sealing strips are connected end to form the sealing structure in the prior art, the sealing structure has no gaps among the sealing strips, and the situation that gas leaks from the gaps is avoided.
Referring to fig. 5-8, the sealing structure comprises a first protrusion 1 arranged on the box body and a second protrusion 2 arranged on the box cover, wherein the first protrusion 1 is arranged around the top edge of the box body 4, the second protrusion 2 is arranged around the inner edge of the box cover 5, the first protrusion 1 and the second protrusion 2 are mutually matched, and a sealing body 3 which is in press fit with the first protrusion 1 and the second protrusion 2 in a sealing state is arranged between the first protrusion 1 and the second protrusion 2; the sealing body 3 comprises a base 30, a first elastic sealing piece 31 and a second elastic sealing piece 32, wherein the first elastic sealing piece 31 is in sealing fit with the first convex part 1, and the second elastic sealing piece 32 is in sealing fit with the second convex part 2 when the box body 4 and the box cover 5 are mutually folded and sealed. The sealing strip in the prior art adopts a simple square sealing strip, the first elastic sealing piece 31 and the second elastic sealing piece 32 are respectively in compression fit with the first convex part 1 and the second convex part 2, the first elastic sealing piece 31 is tightly attached to the first convex part 1, the second elastic sealing piece 32 is tightly attached to the second convex part 2, and through the compression fit mode of the concave-convex structure, the circulation of the air inside the box body 4 and the air outside the box body 4 is isolated, and the sealing performance of the box body 4 and the box cover 5 is improved.
The first elastic sealing piece 31 includes a first inner elastic sealing piece 311 and a first outer elastic sealing piece 312; the second elastic sealing piece 32 includes a second inner elastic sealing piece 321 and a second outer elastic sealing piece 322; the first inner elastic sealing piece 311 and the first outer elastic sealing piece 312 cooperate with each other to form a first concave portion 33, the first concave portion 33 is formed on the upper edge of the first elastic sealing piece 31, and the first concave portion 33 cooperates with the first convex portion 1 to seal; the second inner elastic sealing piece 321 and the second outer elastic sealing piece 322 cooperate with each other to form a second concave portion 34, the second concave portion 34 is formed at the lower edge of the second elastic sealing piece 32, and the second concave portion 34 cooperates with the second convex portion 2 to seal. According to the invention, the first concave part 33 is in compression fit with the first convex part 1 and the second concave part 34 is in compression fit with the second convex part 2, when the automobile jolting box body 4 and the box cover 5 vibrate, the compression sealing mode of the concave-convex fit structure provides larger adhesive force so as to prevent gas leakage or external gas entering the box body 4 caused by displacement between the sealing body 3 and the box body 4 and the box cover 5, and the sealing performance is further improved.
In the daily use process of the battery box, the area of the box cover in the prior art is large, when the air pressure in the box body is increased (for example, the air tightness of the box body is detected by inflation), the box cover can be inflated, the air in the box can be extruded from the position of the inflated uncompacted sealing strip, and in order to prevent the air leakage caused by the increased air pressure, in this embodiment, the fixed end of the first inner elastic sealing piece 311 is intersected with the fixed end of the second inner elastic sealing piece 321, and an inner air pressure bearing surface 36 is formed between the first inner elastic sealing piece 311 and the second inner elastic sealing piece 321. When the internal air pressure of the box body 4 rises, the bulged box cover 5 deforms, the first convex part 1 and the first elastic sealing piece 31 are separated from each other and are not in tight fit, at this time, the internal air pressure bearing surface 36 is subjected to the internal air pressure, the first internal elastic sealing piece 311 deforms to be tightly sealed with the first convex part 1 under the driving of the internal air pressure, the second internal elastic sealing piece 321 deforms to be tightly sealed with the second convex part 2 under the driving of the internal air pressure, and the curvature of the first internal elastic sealing piece 311 and the second internal elastic sealing piece 321 increases after being deformed under the action of the internal air pressure so as to be continuously tightly sealed with the first convex part 1 and the second convex part 2. The invention skillfully sets the first inner elastic sealing piece 311 and the second inner elastic sealing piece 321 which are intersected at the fixed end and expand outwards, and deform when the inner air pressure is increased to tightly press the first convex part 1 and the second convex part 2, the larger the inner air pressure is, the larger the pressing force of the first inner elastic sealing piece 311 and the second inner elastic sealing piece 321 to the first convex part 1 and the second convex part 2 is, the more the air pressure in the box body 4 is converted into the pressing force of the sealing body 3 to the first convex part 1 and the second convex part 2 on the box cover 5 of the box body 4, thereby effectively solving the technical problem of air leakage caused by the increase of the air pressure of the sealing structure in the prior art, and greatly improving the sealing effect of the battery box.
Further, the fixed end of the first external elastic sealing piece 312 intersects with the fixed end of the second external elastic sealing piece 322, and an external air pressure bearing surface 35 is formed between the first external elastic sealing piece 312 and the second external elastic sealing piece 322. When the external air pressure bearing surface 35 is subjected to external air pressure, the first external elastic sealing piece 312 deforms under the driving of the external air pressure to tightly seal with the first protrusion 1, the second external elastic sealing piece 322 deforms under the driving of the external air pressure to tightly seal with the second protrusion 2, and the curvatures of the first external elastic sealing piece 312 and the second external elastic sealing piece 322 are increased after the first external elastic sealing piece 312 and the second external elastic sealing piece 322 are deformed under the external air pressure to tightly seal with the first protrusion 1 and the second protrusion 2. Similarly, the first external elastic sealing piece 312 and the second external elastic sealing piece 322 which are intersected at the fixed ends and extend outwards are arranged, when the external air pressure is increased, the first convex part 1 and the second convex part 2 are tightly pressed, the larger the external air pressure is, the larger the pressing force is, and the air pressure outside the box body 4 is converted into the pressing force of the sealing body 3 on the first convex part 1 and the second convex part 2 on the box cover 5 of the box body 4.
In the present embodiment, the first elastic sealing piece 31, the second elastic sealing piece 32 and the base 30 are integrally provided, the first inner elastic sealing piece 311 and the first outer elastic sealing piece 312 are integrally provided to form the first elastic sealing piece 31, and the second inner elastic sealing piece 321 and the second outer elastic sealing piece 322 are integrally provided to form the second elastic sealing piece 32.
Referring to fig. 6-8, the two ends of the first elastic sealing plate 31 are provided with pointed first gripping portions 313, the two ends of the second elastic sealing plate 32 are provided with pointed second gripping portions 323, when the first elastic sealing plate 31 is deformed to be tightly sealed with the first protruding portion 1 under the driving of internal or external air pressure, the first gripping portions 313 compress the two ends of the first protruding portion 1, and when the second elastic sealing plate 32 is deformed to be tightly sealed with the second protruding portion 2 under the driving of internal or external air pressure, the second gripping portions 323 compress the two ends of the second protruding portion 2. When the internal and external air pressure of the box body 4 is continuously increased, the risk of detachment exists between the sealing body 3 and the first convex part 1 and the second convex part 2, and the first clamping part 313 and the second clamping part 323 are arranged to clamp the two ends of the first convex part 1 and the second convex part 2, so that the effect similar to the effect of clamping objects by claws is achieved, the clamping force of the first elastic sealing piece 31 and the second elastic sealing piece 32 on the first convex part 1 and the second convex part 2 is improved, and the sealing performance is improved.
Further, an external diversion trench (not labeled in the figure) is disposed in the middle of the external air pressure bearing surface, the external diversion trench is disposed at the intersection of the fixed end of the first external elastic sealing piece 312 and the fixed end of the second external elastic sealing piece 322, and an internal diversion trench is disposed in the middle of the internal air pressure bearing surface 35, and the internal diversion trench is disposed at the intersection of the fixed end of the first internal elastic sealing piece 311 and the fixed end of the second internal elastic sealing piece 321. The outside air meets at the outside guiding gutter to form vortex, has increased the effect of atmospheric pressure to a certain extent, makes first outside elastic sealing piece 312 second outside elastic sealing piece 322 takes place deformation more easily, and the same goes on inside gaseous vortex that also forms at inside guiding gutter department, makes first inside elastic sealing piece 311 and second inside elastic sealing piece 321 take place deformation more easily to compress tightly first convex part and second convex part 2.
In the present embodiment, the sealing body 2 is one of a nitrile rubber sealing body or a silicone rubber sealing body or a chloroprene rubber sealing body.
It is to be understood that the invention is not limited in its application to the examples described above, but is capable of modification and variation in light of the above teachings by those skilled in the art, and that all such modifications and variations are intended to be included within the scope of the appended claims.
Claims (9)
1. The battery box body and box cover sealing structure is characterized by comprising a box body, a box cover matched with the box body and a sealing structure for sealing the box body and the box cover, wherein the sealing structure is integrally arranged between the box body and the box cover; the sealing structure is arranged around the edges of the box body and the box cover and comprises a first convex part arranged on the box body and a second convex part arranged on the box cover, the first convex part and the second convex part are matched with each other, and a sealing body which is in compression fit with the first convex part and the second convex part in a sealing state is arranged between the first convex part and the second convex part; the sealing body comprises a base, a first elastic sealing piece and a second elastic sealing piece, wherein the first elastic sealing piece and the second elastic sealing piece extend outwards from the base, when the box body and the box cover are mutually folded and sealed, the first elastic sealing piece is mutually matched with the first convex part in a sealing mode, and the second elastic sealing piece is matched with the second convex part in a sealing mode.
2. The battery case lid seal structure according to claim 1, wherein the first elastic sealing piece includes a first inner elastic sealing piece and a first outer elastic sealing piece; the second elastic sealing piece comprises a second inner elastic sealing piece and a second outer elastic sealing piece; the first inner elastic sealing piece and the first outer elastic sealing piece are matched with each other to form a first concave part, and the first concave part is matched with the first convex part to seal; the second inner elastic sealing piece and the second outer elastic sealing piece are matched with each other to form a second concave part, and the second concave part is matched with the second convex part to seal.
3. The battery case lid seal structure of claim 2, wherein the fixed end of the first inner resilient seal piece intersects the fixed end of the second inner resilient seal piece, and an inner air pressure bearing surface is formed between the first inner resilient seal piece and the second inner resilient seal piece; when the internal air pressure bearing surface is subjected to the internal air pressure, the first internal elastic sealing piece deforms to be tightly sealed with the first convex part under the driving of the internal air pressure, and the second internal elastic sealing piece deforms to be tightly sealed with the second convex part under the driving of the internal air pressure.
4. The battery case lid seal structure according to claim 3, wherein the fixed end of the first external elastic sealing piece intersects the fixed end of the second external elastic sealing piece, and an external air pressure bearing surface is formed between the first external elastic sealing piece and the second external elastic sealing piece; when the external air pressure bearing surface is subjected to external air pressure, the first external elastic sealing piece deforms to be tightly sealed with the first convex part under the driving of the external air pressure, and the second external elastic sealing piece deforms to be tightly sealed with the second convex part under the driving of the external air pressure.
5. The battery box body and box cover sealing structure according to claim 2, wherein the first elastic sealing piece, the second elastic sealing piece and the base are integrally arranged, the first inner elastic sealing piece and the first outer elastic sealing piece are integrally arranged to form a first elastic sealing piece, and the second inner elastic sealing piece and the second outer elastic sealing piece are integrally arranged to form a second elastic sealing piece.
6. The battery box body and box cover sealing structure according to claim 3, wherein the two ends of the first elastic sealing piece are provided with pointed first gripping parts, the two ends of the second elastic sealing piece are provided with pointed second gripping parts, when the first elastic sealing piece deforms to tightly seal with the first convex part under the driving of internal or external air pressure, the first gripping parts compress the two ends of the first convex part, and when the second elastic sealing piece deforms to tightly seal with the second convex part under the driving of internal or external air pressure, the second gripping parts compress the two ends of the second convex part.
7. The battery box body and box cover sealing structure according to claim 4, wherein an outer diversion trench is arranged in the middle of the outer air pressure bearing surface, the outer diversion trench is arranged at the intersection of the fixed end of the first outer elastic sealing piece and the fixed end of the second outer elastic sealing piece, an inner diversion trench is arranged in the middle of the inner air pressure bearing surface, and the inner diversion trench is arranged at the intersection of the fixed end of the first inner elastic sealing piece and the fixed end of the second inner elastic sealing piece.
8. The battery box cover sealing structure according to any one of claims 1 to 7, wherein the sealing body is one of a nitrile rubber sealing body or a silicone rubber sealing body or a chloroprene rubber sealing body.
9. The battery box body and box cover sealing structure according to claim 2, wherein the sealing structure is arranged around the edges of the box body and the box cover, the first protruding part is arranged around the edge of the top of the box body, and the second protruding part is arranged around the edge of the inner side of the box cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910505413.8A CN110107690B (en) | 2019-06-12 | 2019-06-12 | Sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910505413.8A CN110107690B (en) | 2019-06-12 | 2019-06-12 | Sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110107690A CN110107690A (en) | 2019-08-09 |
| CN110107690B true CN110107690B (en) | 2024-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910505413.8A Active CN110107690B (en) | 2019-06-12 | 2019-06-12 | Sealing structure |
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| Country | Link |
|---|---|
| CN (1) | CN110107690B (en) |
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| FR3103639B1 (en) * | 2019-11-26 | 2022-06-03 | Renault Sas | Traction battery casing and corresponding mounting method |
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| CN210178917U (en) * | 2019-06-12 | 2020-03-24 | 深圳市雄韬电源科技股份有限公司 | Sealing structure |
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| CN105244464A (en) * | 2015-10-29 | 2016-01-13 | 金龙联合汽车工业（苏州）有限公司 | Battery seal box |
| EP3242061B1 (en) * | 2016-05-04 | 2019-03-06 | Hyundai Motor Company | Coolant control valve unit having sealing structure |
| CN206259421U (en) * | 2016-12-22 | 2017-06-16 | 苏州精控能源科技有限公司 | A kind of sealing structure of battery case |
| CN207082567U (en) * | 2017-06-19 | 2018-03-09 | 江苏英耐杰新能源有限公司 | Electrokinetic cell casing sealing structure |
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