CN219657107U - Waterproof test equipment of battery package - Google Patents
Waterproof test equipment of battery package Download PDFInfo
- Publication number
- CN219657107U CN219657107U CN202321031851.3U CN202321031851U CN219657107U CN 219657107 U CN219657107 U CN 219657107U CN 202321031851 U CN202321031851 U CN 202321031851U CN 219657107 U CN219657107 U CN 219657107U
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- negative pressure
- die
- die holder
- battery pack
- limiting sleeve
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- 238000012360 testing method Methods 0.000 title claims abstract description 36
- 238000001514 detection method Methods 0.000 claims abstract description 51
- 238000007789 sealing Methods 0.000 claims abstract description 38
- 230000006698 induction Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 abstract description 8
- 230000006872 improvement Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
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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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- Examining Or Testing Airtightness (AREA)
Abstract
The utility model relates to the technical field of battery pack testing, and particularly discloses battery pack waterproof testing equipment which comprises a base and a top plate, wherein a lower die is arranged at the upper end of the base, an upper die is arranged at the lower end of the top plate, the upper die is arranged above the lower die and is in movable fit with the lower die, a first sealing structure, a second sealing structure and a negative pressure detection cavity are arranged at the matched position of the lower die and the upper die, the negative pressure detection cavity is arranged between the first sealing structure and the second sealing structure, and the negative pressure detection cavity is communicated with a sealing detection part arranged outside the upper die. When the lower die and the upper die are matched, the space where the battery pack is located can be kept sealed by the two sealing structures, the negative pressure detection cavity is located between the two sealing structures, the negative pressure can be generated in the negative pressure detection cavity by the sealing detection part on the outer side of the upper die, the air pressure change in the negative pressure detection cavity can be detected, whether the connection position of the lower die and the upper die is leaked or not is judged, operators can timely replace the lower die and the upper die, and the accuracy of product testing is guaranteed.
Description
Technical Field
The utility model relates to the technical field of battery pack testing, in particular to waterproof testing equipment for a battery pack.
Background
The waterproof property of the battery pack is important to the performance and safety of the electric automobile. The rapid, efficient and safe method for detecting the waterproof level of the battery pack becomes a more important link. The current battery PACK tightness detection equipment mainly comprises positive pressure test or negative pressure test, and the battery PACK is thinner in material and can bear smaller pressure, so that the general tightness test can only bear the tightness test pressure of a few kPa or tens of kP, the power battery PACK tightness test is usually carried out by adopting a differential pressure method, and the tightness test period of the power battery PACK is 3-10 minutes, which depends on the volume of a product.
At present, when the airtight waterproof tightness detection of the battery pack is carried out, a profiling mold is needed, the inner cavity of the profiling mold can accommodate the battery pack, good sealing is kept through a sealing rubber ring after the upper mold and the lower mold are closed, then the battery pack is detected through a lithium battery tightness tester with set testing parameters, the air pressure change is detected in real time through an internal pressure sensor, a judging result is automatically given after the detection is finished, and an alarm prompt is given to a product which cannot meet the requirement. Because the upper die and the lower die can be continuously collided in the closing process, after the testing equipment is used for a period of time, the sealing structure between the upper die and the lower die is easy to slightly deform and damage under the influence of external force, the air tightness of the dies is influenced, the problem is difficult to timely check by staff, and the accuracy of the battery pack sealing test is influenced.
Disclosure of Invention
Aiming at the problems, the utility model provides waterproof test equipment for a battery pack, which is used for solving the defects that the sealing structure between an upper die and a lower die is easy to slightly deform and damage under the influence of external force after the conventional test equipment is used for a long time, and workers are difficult to timely check the problems.
In order to achieve the purpose of the utility model, the utility model is realized by the following technical scheme: the battery pack waterproof test equipment comprises a base and a top plate, wherein a lower die is arranged at the upper end of the base, an upper die is arranged at the lower end of the top plate, the upper die is arranged above the lower die and is in movable fit with the lower die, and an inner cavity of the lower die is communicated with a negative pressure detection part arranged at the outer side of the lower die;
the upper end of the base is provided with a plurality of hydraulic push rods, each hydraulic push rod surrounds the periphery of the lower die and the upper die respectively, the installation end of each hydraulic push rod is fixedly connected with the base, and the output end of each hydraulic push rod is fixedly connected with the lower end of the top plate;
the cooperation department of lower mould and last mould is equipped with first seal structure, second seal structure and negative pressure detection chamber, and the negative pressure detection chamber is arranged in between first seal structure and the second seal structure, and the negative pressure detection chamber links with the sealed detection portion who establishes the mould outside in last.
The further improvement is that: the lower die comprises a die holder, the lower end of the die holder is fixedly connected with the base, and the upper end of the die holder is provided with a groove for placing the battery pack with the test.
The further improvement is that: the upper die comprises a fixed block, the upper end of the fixed block is fixedly connected with the lower end of the top plate, the lower end of the fixed block is provided with a limiting sleeve, a limiting block is arranged in the limiting sleeve, the upper end of the limiting block is fixedly connected with the limiting sleeve, the lower end of the limiting block penetrates into the groove and is in sliding fit with the groove, the limiting sleeve is sleeved on the outer side of the die holder and is in sliding fit with the die holder, the inner side wall of the limiting sleeve is in contact with the inner side wall of the die holder, and the groove wall of the groove is in contact with the outer side wall of the limiting block.
The further improvement is that: the negative pressure detection part comprises a first pressure sensor and a first negative pressure pipe which are arranged outside the die holder, the induction end of the first pressure sensor is communicated with the groove, one end of the first negative pressure pipe is communicated with the pneumatic pump through a pipeline, and the other end of the first negative pressure pipe penetrates into the die holder and is communicated with the groove.
The further improvement is that: the first sealing structure comprises a rubber cutting sleeve sleeved on the outer side of the die holder, the rubber cutting sleeve is fixedly connected with the die holder, and after the limiting sleeve is matched with the die holder, the rubber cutting sleeve is movably matched with a clamping groove formed in the lower end face of the limiting sleeve.
The further improvement is that: the second sealing structure comprises a first sealing groove formed in the upper end of the die holder, the die holder is movably matched with a rubber strip arranged on the inner side of the limit sleeve after the limit sleeve is matched with the die holder, and the rubber strip surrounds the periphery of the limit block and is fixedly connected with the inner side wall of the limit sleeve.
The further improvement is that: the negative pressure detection cavity comprises an annular channel arranged on the outer side of the die holder, the annular channel is arranged above the rubber clamping sleeve, and a closed cavity is formed between the annular channel and the inner side wall of the limiting sleeve after the limiting sleeve is matched with the die holder.
The further improvement is that: the sealing detection part comprises a second negative pressure pipe and a second pressure sensor which are arranged outside the limiting sleeve, after the limiting sleeve is matched with the die holder, the induction end of the second pressure sensor is communicated with the annular channel, one end of the second negative pressure pipe is communicated with a negative pressure air pump arranged on the top plate through a pipeline, and the other end of the second negative pressure pipe penetrates into the limiting sleeve and is communicated with the annular channel.
The further improvement is that: the lower end of the base is provided with a plurality of rubber cushion strips, and each rubber cushion strip is respectively fixed at each corner of the lower end face of the base.
The beneficial effects of the utility model are as follows: when the lower die and the upper die are matched, the space where the battery pack is located can be kept sealed by the two sealing structures, the negative pressure detection cavity is located between the two sealing structures, the negative pressure can be generated in the negative pressure detection cavity by the sealing detection part on the outer side of the upper die, the air pressure change in the negative pressure detection cavity can be detected, whether the connection position of the lower die and the upper die is leaked or not is judged, operators can timely replace the lower die and the upper die, and the accuracy of product testing is guaranteed.
Drawings
FIG. 1 is a block diagram of an upper die in the present utility model.
Fig. 2 is a structural view of a lower die in the present utility model.
Fig. 3 is a block diagram of a die holder in the present utility model.
Fig. 4 is a structural view of a spacer in the present utility model.
Wherein: 1. a base; 2. a top plate; 3. a lower die; 31. a die holder; 32. a rubber cutting sleeve; 33. an annular channel; 34. a first seal groove; 4. an upper die; 41. a fixed block; 42. a limiting block; 43. a limit sleeve; 44. a rubber strip; 5. a negative pressure air pump; 6. a hydraulic push rod; 7. a first pressure sensor; 8. a first negative pressure pipe; 9. a second negative pressure pipe; 10. a second pressure sensor; 11. rubber cushion strips.
Detailed Description
The present utility model will be further described in detail with reference to the following examples, which are only for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model.
According to fig. 1, 2, 3 and 4, the embodiment provides a waterproof test device for a battery pack, which comprises a base 1 and a top plate 2, wherein a lower die 3 is arranged at the upper end of the base 1, an upper die 4 is arranged at the lower end of the top plate 2, the upper die 4 is arranged above the lower die 3 and is in movable fit with the lower die 3, and an inner cavity of the lower die 3 is communicated with a negative pressure detection part arranged outside the lower die 3;
the upper end of the base 1 is provided with a plurality of hydraulic push rods 6, each hydraulic push rod 6 surrounds the periphery of the lower die 3 and the upper die 4 respectively, the installation end of each hydraulic push rod 6 is fixedly connected with the base 1, and the output end of each hydraulic push rod 6 is fixedly connected with the lower end of the top plate 2; the lower die 3 and the upper die 4 form a main body of the test die, a battery pack to be tested is placed in the lower die 3, the hydraulic push rod 6 pulls the top plate 2 to fall, the upper die 4 and the lower die 3 are closed, the space where the battery pack is positioned is kept closed,
the negative pressure in the lower die 3 is generated through the negative pressure detection part outside the lower die 3, the sensing unit detects the air pressure change in the lower die 3 in real time, the judgment result is automatically given after the detection is finished, and a prompt is given to a product which cannot meet the requirement, so that the waterproof tightness test is completed.
The cooperation department of lower mould 3 and last mould 4 is equipped with first seal structure, second seal structure and negative pressure detection chamber, and the negative pressure detection chamber is arranged in between first seal structure and the second seal structure, and the negative pressure detection chamber communicates with the sealed detection portion who establishes the outside at last mould 4. After the lower die 3 and the upper die 4 are matched, the lower die 3 and the upper die 4 form good sealing by the first sealing structure and the second sealing structure. When the lower die 3 is matched with the upper die 4, a negative pressure detection cavity is formed at the matched position of the lower die 3 and the upper die 4, the negative pressure detection cavity is positioned between the two sealing structures, the negative pressure can be generated in the negative pressure detection cavity by the sealing detection part at the outer side of the upper die 4, and the air pressure change in the negative pressure detection cavity can be detected in real time through the sensing unit to judge whether the connecting position of the lower die 3 and the upper die 4 is leaked or not, so that an operator can replace the lower die 3 and the upper die 4 in time.
Regarding the lower die 3 and the upper die 4: the lower die 3 comprises a die holder 31, the lower end of the die holder 31 is fixedly connected with the base 1, and the upper end of the die holder 31 is provided with a groove for placing a battery pack with a test.
The upper die 4 comprises a fixed block 41, the upper end of the fixed block 41 is fixedly connected with the lower end of the top plate 2, a limiting sleeve 43 is arranged at the lower end of the fixed block 41, a limiting block 42 is arranged in the limiting sleeve 43, the upper end of the limiting block 42 is fixedly connected with the limiting sleeve 43, the lower end of the limiting block 42 penetrates into a groove and is in sliding fit with the groove, the limiting sleeve 43 is sleeved on the outer side of the die holder 31 and is in sliding fit with the die holder 31, the inner side wall of the limiting sleeve 43 is in contact with the inner side wall of the die holder 31, and the groove wall is in contact with the outer side wall of the limiting block 42. The battery pack to be tested is stored in the groove on the die holder 31, when the battery pack is detected, the hydraulic push rod 6 can pull the top plate 2 to fall, the limiting block 42 can penetrate into the groove when the top plate 2 falls, the upper end of the die holder 31 is inserted into a gap between the inner wall of the limiting block 42 and the outer wall of the limiting block 42, and the lower die 3 and the upper die 4 can keep good fit through the concave-convex fit structure.
The negative pressure detection part comprises a first pressure sensor 7 and a first negative pressure pipe 8 which are arranged outside the die holder 31, the induction end of the first pressure sensor 7 is communicated with the groove, one end of the first negative pressure pipe 8 is communicated with the pneumatic pump through a pipeline, and the other end of the first negative pressure pipe 8 penetrates into the die holder 31 and is communicated with the groove. After the lower die 3 and the upper die 4 are matched, a closed cavity is formed in the groove at the upper end of the die holder 31, air in the groove is extracted through the first negative pressure pipe 8, negative pressure can be formed in the cavity, the first pressure sensor 7 detects the air pressure change in the groove in real time, and when a battery pack leaks, the first pressure sensor 7 can remind all staff through an external control system.
The first sealing structure comprises a rubber clamping sleeve 32 sleeved on the outer side of the die holder 31, the rubber clamping sleeve 32 is fixedly connected with the die holder 31, and after the limiting sleeve 43 is matched with the die holder 31, the rubber clamping sleeve 32 is movably matched with a clamping groove formed in the lower end face of the limiting sleeve 43.
The second sealing structure comprises a first sealing groove 34 formed at the upper end of the die holder 31, after the limit sleeve 43 is matched with the die holder 31, the die holder 31 is movably matched with a rubber strip 44 arranged on the inner side of the limit sleeve 43, and the rubber strip 44 surrounds the periphery of the limit block 42 and is fixedly connected with the inner side wall of the limit sleeve 43. When the limiting sleeve 43 falls down to be matched with the die holder 31, the rubber strip 44 fixed on the inner side of the limiting sleeve 43 can be embedded into the first sealing groove 34 formed in the die holder 31, the rubber clamping sleeve 32 sleeved on the outer side of the die holder 31 can be embedded into the clamping groove formed in the lower end face of the limiting sleeve 43, and the air tightness of the lower die 3 and the upper die 4 after being matched is effectively improved by the double sealing structure.
The negative pressure detection cavity comprises an annular channel 33 arranged on the outer side of the die holder 31, the annular channel 33 is arranged above the rubber clamping sleeve 32, and a closed cavity is formed between the annular channel 33 and the inner side wall of the limiting sleeve 43 after the limiting sleeve 43 is matched with the die holder 31.
The seal detection part comprises a second negative pressure pipe 9 and a second pressure sensor 10 which are arranged on the outer side of the limiting sleeve 43, after the limiting sleeve 43 is matched with the die holder 31, the induction end of the second pressure sensor 10 is communicated with the annular channel 33, one end of the second negative pressure pipe 9 is communicated with a negative pressure air pump 5 arranged on the top plate 2 through a pipeline, and the other end of the second negative pressure pipe 9 penetrates into the limiting sleeve 43 and is communicated with the annular channel 33. The air in the annular channel 33 is extracted through the second negative pressure pipe 9, so that negative pressure can be formed in the cavity, the second pressure sensor 10 detects the air pressure change in the annular channel 33 in real time, and when two sealing structures leak, the second pressure sensor 10 can remind all staff through an external control system. The first pressure sensor 7 and the second pressure sensor 10 are conventional detecting elements, and will not be described.
In order to improve the stability of the base 1 when placed on a platform, the lower end of the base 1 is provided with a plurality of rubber cushion strips 11, and each rubber cushion strip 11 is respectively fixed at each corner of the lower end surface of the base 1.
The battery package to be tested is placed in the lower die 3, the upper die 4 is closed with the lower die 3, the space where the battery package is located is kept sealed by the two sealing structures, when the lower die 3 is matched with the upper die 4, a negative pressure detection cavity is formed at the matched position of the lower die 3 and the upper die 4, the negative pressure detection cavity is positioned between the two sealing structures, the negative pressure can be generated in the negative pressure detection cavity by the sealing detection part at the outer side of the upper die 4, and the air pressure change in the negative pressure detection cavity can be detected in real time through the sensing unit, so that whether the connection position of the lower die 3 and the upper die 4 is leaked or not is judged, operators can replace the lower die 3 and the upper die 4 in time, and the accuracy of product testing is ensured.
The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (9)
1. The waterproof test equipment for the battery pack comprises a base (1) and a top plate (2), wherein a lower die (3) is arranged at the upper end of the base (1), an upper die (4) is arranged at the lower end of the top plate (2), and the upper die (4) is arranged above the lower die (3) and is in movable fit with the lower die (3), and is characterized in that an inner cavity of the lower die (3) is communicated with a negative pressure detection part arranged outside the lower die (3);
the upper end of the base (1) is provided with a plurality of hydraulic push rods (6), each hydraulic push rod (6) surrounds the periphery of the lower die (3) and the upper die (4) respectively, the installation end of each hydraulic push rod (6) is fixedly connected with the base (1), and the output end of each hydraulic push rod (6) is fixedly connected with the lower end of the top plate (2);
the cooperation department of lower mould (3) and last mould (4) is equipped with first seal structure, second seal structure and negative pressure detection chamber, the negative pressure detection chamber is arranged in between first seal structure and the second seal structure, the negative pressure detection chamber links with the sealed detection portion who establishes in last mould (4) outside.
2. The waterproof test apparatus for a battery pack according to claim 1, wherein: the lower die (3) comprises a die holder (31), the lower end of the die holder (31) is fixedly connected with the base (1), and the upper end of the die holder (31) is provided with a groove for placing a battery pack with a test.
3. The waterproof test apparatus for a battery pack according to claim 2, wherein: the upper die (4) comprises a fixed block (41), the upper end of the fixed block (41) is fixedly connected with the lower end of the top plate (2), a limiting sleeve (43) is arranged at the lower end of the fixed block (41), a limiting block (42) is arranged in the limiting sleeve (43), the upper end of the limiting block (42) is fixedly connected with the limiting sleeve (43), the lower end of the limiting block (42) penetrates into the groove and is in sliding fit with the groove, the limiting sleeve (43) is sleeved on the outer side of the die holder (31) and is in sliding fit with the die holder (31), the inner side wall of the limiting sleeve (43) is in contact with the inner side wall of the die holder (31), and the groove wall is in contact with the outer side wall of the limiting block (42).
4. A waterproof test apparatus for a battery pack according to claim 3, wherein: the negative pressure detection part comprises a first pressure sensor (7) and a first negative pressure pipe (8) which are arranged outside a die holder (31), the induction end of the first pressure sensor (7) is communicated with the groove, one end of the first negative pressure pipe (8) is communicated with the pneumatic pump through a pipeline, and the other end of the first negative pressure pipe (8) penetrates into the die holder (31) and is communicated with the groove.
5. A waterproof test apparatus for a battery pack according to claim 3, wherein: the first sealing structure comprises a rubber clamping sleeve (32) sleeved on the outer side of the die holder (31), the rubber clamping sleeve (32) is fixedly connected with the die holder (31), and after the limiting sleeve (43) is matched with the die holder (31), the rubber clamping sleeve (32) is movably matched with a clamping groove formed in the lower end face of the limiting sleeve (43).
6. The waterproof test apparatus for a battery pack according to claim 5, wherein: the second sealing structure comprises a first sealing groove (34) formed in the upper end of the die holder (31), after the limiting sleeve (43) is matched with the die holder (31), the die holder (31) is movably matched with a rubber strip (44) arranged on the inner side of the limiting sleeve (43), and the rubber strip (44) surrounds the periphery of the limiting block (42) and is fixedly connected with the inner side wall of the limiting sleeve (43).
7. The waterproof test apparatus for a battery pack according to claim 5, wherein: the negative pressure detection cavity comprises an annular channel (33) arranged on the outer side of the die holder (31), the annular channel (33) is arranged above the rubber clamping sleeve (32), and a closed cavity is formed between the annular channel (33) and the inner side wall of the limiting sleeve (43) after the limiting sleeve (43) is matched with the die holder (31).
8. The waterproof test apparatus for a battery pack according to claim 7, wherein: the sealing detection part comprises a second negative pressure pipe (9) and a second pressure sensor (10) which are arranged outside a limiting sleeve (43), after the limiting sleeve (43) is matched with a die holder (31), the induction end of the second pressure sensor (10) is communicated with an annular channel (33), one end of the second negative pressure pipe (9) is communicated with a negative pressure air pump (5) arranged on a top plate (2) through a pipeline, and the other end of the second negative pressure pipe (9) penetrates into the limiting sleeve (43) and is communicated with the annular channel (33).
9. The waterproof test apparatus for a battery pack according to claim 1, wherein: the lower end of the base (1) is provided with a plurality of rubber cushion strips (11), and each rubber cushion strip (11) is respectively fixed at each corner of the lower end face of the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321031851.3U CN219657107U (en) | 2023-05-04 | 2023-05-04 | Waterproof test equipment of battery package |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321031851.3U CN219657107U (en) | 2023-05-04 | 2023-05-04 | Waterproof test equipment of battery package |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219657107U true CN219657107U (en) | 2023-09-08 |
Family
ID=87881224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321031851.3U Active CN219657107U (en) | 2023-05-04 | 2023-05-04 | Waterproof test equipment of battery package |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219657107U (en) |
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2023
- 2023-05-04 CN CN202321031851.3U patent/CN219657107U/en active Active
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