Solid-state battery pack

By designing rack components, push components and snap components in the solid-state battery pack, rapid separation is achieved when the solid-state battery fails or overheated combustion, solving the problem of rapid separation of batteries in the prior art, and improving the safety and service life of the battery.

CN119812632APending Publication Date: 2025-04-11HEYUAN LICHUANG (SUZHOU) NEW ENERGY TECH CO LTD
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Patent Information

Application Number
CN202411855644.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-04-11

AI Technical Summary

Technical Problem

Existing solid-state battery packs cannot be separated quickly when a solid-state battery fails or overheats, resulting in unusable batteries.

Method used

A solid-state battery pack is designed, including rack assembly, push assembly and snap assembly. The push assembly realizes the roll-up of abnormal batteries through threaded rods and drive motors, and the snap assembly realizes the roll-up and disengagement of batteries through flipped card blocks and torsion springs.

Benefits of technology

When solid-state batteries fail or overheated combustion, abnormal batteries can be quickly separated to ensure that other batteries continue to be used, while improving battery safety and life through heat transfer and heat dissipation components.

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Abstract

The invention belongs to the technical field of batteries, and particularly relates to a solid-state battery pack. The solid-state battery pack mainly comprises a rack assembly, and the rack assembly comprises a shell; a plurality of mounting grooves are formed in the shell; a solid-state battery is mounted in the mounting groove; the pushing assembly comprises a threaded rod, a threaded block and a push rod; the threaded rod is mounted on the shell; the threaded rod can rotate; a threaded block is arranged on the outer side of the threaded rod; push rods are mounted at the tops of the threaded blocks; the top of the push rod is connected with the inner wall of the shell; the buckle assembly comprises a fixing piece and an overturning clamping block; the fixing sheet is mounted on the inner wall of the shell; the overturning clamping block is connected with the fixing piece. A clamping groove is formed in the overturning clamping block; a fixed clamping block is arranged on the solid-state battery; and the fixed clamping blocks are mounted in the clamping grooves. According to the solid-state battery pack disclosed by the invention, when one solid-state battery is abnormal, the solid-state battery can be quickly separated from other normal solid-state batteries, so that other solid-state batteries can be continuously used.
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Description

Technical Field

[0001] The present invention belongs to the technical field of batteries, and in particular relates to a solid-state battery pack. Background Art

[0002] Solid-state batteries are a type of battery technology that uses solid electrodes and solid electrolytes instead of liquid or polymer gel electrolytes found in lithium-ion or lithium-polymer batteries. Materials used as solid electrolytes in solid-state batteries include ceramics (such as oxides, sulfides, phosphates) and solid polymers. In order to achieve better insulation, soft-pack solid-state batteries are usually installed with separate metal shell brackets and other components during installation, and then assembled together.

[0003] In the existing technology, in order to install multiple soft-pack solid-state batteries together, screws or adhesives are usually used to fix them. However, if screws or adhesives are used to fix them, if one of the soft-pack solid-state batteries fails or overheats during use, it cannot be quickly separated from the other batteries in time, which will cause all batteries to be unusable. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a solid-state battery pack, the purpose of which is to be able to quickly separate the abnormal solid-state battery from other normal solid-state batteries when a solid-state battery fails or overheats and burns, so that the other solid-state batteries can continue to be used.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a solid-state battery pack, including a frame assembly, the frame assembly includes a shell; a plurality of mounting grooves are provided on the shell; a solid-state battery is installed in the mounting groove; a pushing assembly, the pushing assembly includes a threaded rod, a threaded block and a push rod; the threaded rod is installed on the shell; the threaded rod is rotatable; a threaded block is provided on the outer side of the threaded rod; a push rod is installed on the top of the threaded block; the top of the push rod is connected to the inner wall of the shell; a buckle assembly, the buckle assembly includes a fixed plate and a flip block; the fixed plate is installed on the inner wall of the shell; the flip block is connected to the fixed plate; a slot is provided on the flip block; a fixed block is provided on the solid-state battery; the fixed block is installed in the slot.

[0006] A solid-state battery pack includes a rack assembly, a push assembly and a buckle assembly. The three components cooperate with each other. When a solid-state battery fails or overheats and burns, the push assembly can push the abnormal solid-state battery out of the mounting slot. Under the action of the buckle assembly, the solid-state battery flips and detaches from the housing of the rack assembly, so that the abnormal solid-state battery is separated from other normal solid-state batteries, so that other solid-state batteries can continue to be used. The rack assembly includes a mounting slot, which provides a space for the installation of the solid-state battery. The push assembly includes a threaded rod, a threaded block and a push rod. The threaded rod is rotatable. The threaded block slides while rotating, driving the push rod to slide. The sliding of the push rod causes the abnormal solid-state battery to move outward from the mounting slot to be pushed out. The buckle assembly includes a fixed sheet and a flipping card block. When the abnormal solid-state battery is detached from the mounting slot, the flipping card block flips, so that the card slot is detached from the fixed card block on the abnormal solid-state battery, and the abnormal solid-state battery is detached from the housing of the rack assembly.

[0007] Furthermore, the pushing assembly also includes a driving motor; the driving motor is installed on the outside of the shell; and the driving motor is connected to the threaded rod.

[0008] The pushing assembly also includes a driving motor, which is connected to the threaded rod. The output end of the driving motor can drive the threaded rod to rotate, thereby pushing the abnormal solid-state battery out of the installation slot. The driving motor provides power for the pushing assembly to push the abnormal solid-state battery out.

[0009] Furthermore, a temperature sensor is provided on the outside of the solid-state battery; the temperature sensor is connected to the drive motor.

[0010] The temperature sensor is connected to the drive motor and can monitor the temperature of the solid-state battery. When the temperature of the solid-state battery is too high and abnormal, the temperature sensor will detect it, thereby starting the drive motor and carrying out the subsequent abnormal solid-state battery ejection process.

[0011] Furthermore, the pushing assembly also includes a threaded groove; the threaded rod is installed in the threaded groove.

[0012] The pushing assembly also includes a thread groove, which provides a rotation space for the threaded rod to rotate.

[0013] Furthermore, the pushing component also includes a limiting slide groove; the threaded block can be slidably installed in the limiting slide groove.

[0014] The pushing component also includes a limiting slide groove, which is a space for the threaded block to slide. The sliding of the threaded block can drive the push rod to slide, thereby pushing the abnormal solid-state battery out of the installation groove.

[0015] Furthermore, the buckle assembly also includes a torsion spring, a rotating hole and a connecting shaft; the rotating hole is provided on the flip block; the connecting shaft is installed inside the rotating hole; one end of the torsion spring is fixed on the connecting shaft, and the other end is fixed on the inner wall of the rotating hole.

[0016] The buckle assembly also includes a torsion spring, a rotating hole and a connecting shaft. The torsion spring can drive the flip card block to flip, and the flipped flip card block will rotate on the connecting shaft through the rotating hole to achieve a flipping effect.

[0017] Furthermore, a contact is provided on the solid-state battery; an iron sheet is installed on the inner wall of the shell; the iron sheet is fitted with the push rod; and the contact penetrates the push rod and contacts the iron sheet.

[0018] Each solid-state battery is provided with a contact, which is connected to an iron sheet, so that multiple solid-state batteries in the solid-state battery pack can be connected in series. When one of the solid-state batteries becomes abnormal, the push rod drives the abnormal solid-state battery to move. At this time, the contact on the solid-state battery detaches from the iron sheet, thus releasing the series connection between the abnormal solid-state battery and other normal solid-state batteries.

[0019] Furthermore, it also includes a heat transfer component; the heat transfer component includes a heat conductive plate, a connecting heat conductive strip and a heat conductive fixing plate; the heat conductive plate is installed on the inner wall of the outer shell; the heat conductive plate is in contact with the solid-state battery; the heat conductive fixing plate is installed on the top of the outer shell; one end of the connecting heat conductive strip is connected to the top of the heat conductive plate, and the other end passes through the outer shell and is connected to the heat conductive fixing plate.

[0020] The heat transfer component includes a heat conductive plate, a connecting heat conductive strip and a heat conductive fixing plate. The heat conductive plate transfers the heat generated during the operation of the solid-state battery to the connecting heat conductive strip, and the connecting heat conductive strip transfers the heat to the heat conductive fixing plate, thereby transferring the heat generated during the operation of the solid-state battery out from the inside of the outer shell.

[0021] Furthermore, a heat dissipation assembly is installed above the heat-conducting fixed plate; the heat dissipation assembly includes a fixing frame, a supporting frame, a motor and fan blades; the fixing frame is fixed above the heat-conducting fixed plate; the supporting frame is connected to the fixing frame; the motor is installed on the top of the supporting frame; the output end of the motor passes through the supporting frame and is connected to the fan blades.

[0022] The heat transfer component transfers the heat generated by the solid-state battery during operation from the inside of the shell to the heat-conducting fixing plate. A heat dissipation component is installed above the heat-conducting fixing plate to dissipate heat. The fixing frame and the support frame in the heat dissipation component provide a fixing function for the motor and the fan blades. When the motor in the heat dissipation component is started, the output end of the motor is connected to the fan blades, which will drive the fan blades to rotate. The rotating fan blades will be able to blow air to the heat-conducting fixing plate, cool the heat-conducting fixing plate, and take away the heat from the heat-conducting fixing plate, thereby achieving the effect of dissipating heat and cooling the solid-state battery.

[0023] Furthermore, a vent is provided on the fixing frame.

[0024] The vents can dissipate the heat generated during the operation of the solid-state battery, preventing the accumulation of heat from affecting the solid-state battery.

[0025] Beneficial Effects A solid-state battery pack of the present invention, when a solid-state battery fails or overheats and burns, a pushing component and a snap assembly can quickly separate the abnormal solid-state battery from other normal solid-state batteries, so that the other solid-state batteries can continue to be used; at the same time, a heat transfer component and a heat dissipation component are also provided. The heat transfer component can transfer the heat of the solid-state battery from the outer shell when in use, and the heat dissipation component dissipates heat and cools the solid-state battery, thereby improving the safety of the solid-state battery when in use and the service life of the solid-state battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of a solid-state battery pack; Figure 2 It is a schematic diagram of the structure of the push component and the buckle component; Figure 3 It is a schematic diagram of the structure of multiple solid-state batteries; Figure 4 is a schematic diagram of the structure of the heat transfer component; Figure 5 A schematic diagram of the structure of the heat dissipation component.

[0027] In the accompanying drawings: 11, housing; 12, mounting slot; 13, solid-state battery; 14, temperature sensor; 21, threaded rod; 22, threaded block; 23, push rod; 24, drive motor; 25, threaded slot; 26, limit slide slot; 31, fixing plate; 32, flip block; 33, torsion spring; 34, rotating hole; 35, connecting shaft; 41, heat conducting plate; 42, connecting heat conducting strip; 43, heat conducting fixing plate; 51, fixing frame; 52, supporting frame; 53, motor; 54, fan blade; 111, iron sheet; 131, fixing block; 132, contact; 321, slot; 511, vent. DETAILED DESCRIPTION

[0028] Example 1 like Figure 1 to Figure 2 A solid-state battery pack shown in the figure includes a rack assembly, which includes a shell 11; a plurality of mounting grooves 12 are provided on the shell 11; a solid-state battery 13 is installed in the mounting groove 12; a pushing assembly, which includes a threaded rod 21, a threaded block 22 and a push rod 23; the threaded rod 21 is cylindrical and is installed on the shell 11; the threaded rod 21 is rotatable; a threaded block 22 is installed on the outer thread of the threaded rod 21; a push rod 23 is installed on the top of the threaded block 22; the top of the push rod 23 is connected to the inner wall of the shell 11; a buckle assembly, which includes a fixed plate 31 and a flip block 32; the fixed plate 31 is installed on the inner wall of the shell 11; there are two flip blocks 32, which are connected to the fixed plate 31; a slot 321 is provided on the flip block 32; a fixed block 131 is provided on the solid-state battery 13; the fixed block 131 is installed in the slot 321.

[0029] A solid-state battery pack includes a rack assembly, a push assembly and a buckle assembly. The three components cooperate with each other. When a solid-state battery 13 fails or overheats and burns, the push assembly can push the abnormal solid-state battery 13 out of the installation slot 12. Under the action of the buckle assembly, the solid-state battery 13 flips and detaches from the housing 11 of the rack assembly, so that the abnormal solid-state battery 13 is separated from other normal solid-state batteries 13, so that other solid-state batteries 13 can continue to be used. The rack assembly includes a mounting slot 12, which provides a space for the installation of the solid-state battery 13. The push assembly includes a threaded rod 21, a threaded block 22 and a push rod 23. The threaded rod 21 is rotatable. While rotating, the threaded block 22 slides, driving the push rod 23 to slide. The sliding of the push rod 23 causes the abnormal solid-state battery 13 to move outward from the mounting slot 12 to be pushed out. The buckle assembly includes a fixing plate 31 and a flip block 32. When the abnormal solid-state battery 13 is detached from the mounting slot 12, the two flip blocks 32 are flipped, so that the slot 321 is detached from the fixed block 131 on the abnormal solid-state battery 13, and the abnormal solid-state battery 13 is detached from the housing 11 of the rack assembly.

[0030] The pushing assembly further includes a driving motor 24 ; the driving motor 24 is installed on the outside of the housing 11 ; the driving motor 24 is connected to the threaded rod 21 .

[0031] The pushing assembly also includes a drive motor 24, which is connected to the threaded rod 21. The output end of the drive motor 24 can drive the threaded rod 21 to rotate, thereby pushing the abnormal solid-state battery 13 out of the installation slot 12. The drive motor 24 provides power for the pushing assembly to push the abnormal solid-state battery 13 out.

[0032] like Figure 3 As described above, a temperature sensor 14 is disposed on the outer side of the solid-state battery 13 ; the temperature sensor 14 is connected to the drive motor 24 .

[0033] The temperature sensor 14 is connected to the drive motor 24 and can monitor the temperature of the solid-state battery 13. When the temperature of the solid-state battery 13 is too high and abnormal, the temperature sensor 14 detects it, thereby starting the drive motor 24 and carrying out the subsequent ejection process of the abnormal solid-state battery 13.

[0034] like Figure 2 As shown, the pushing assembly further includes a thread groove 25 ; the threaded rod 21 is installed in the thread groove 25 .

[0035] The pushing assembly further comprises a thread groove 25 , which provides a rotation space for the threaded rod 21 to rotate.

[0036] The pushing assembly further includes a limiting slide groove 26 ; there are a plurality of limiting slide grooves 26 ; the threaded block 22 is slidably installed in a corresponding limiting slide groove 26 .

[0037] The pushing assembly also includes a limiting slide groove 26 , which is a space for the threaded block 22 to slide. The sliding of the threaded block 22 can drive the push rod 23 to slide, thereby pushing the abnormal solid-state battery 13 out of the installation groove 12 .

[0038] The buckle assembly also includes a torsion spring 33, a rotating hole 34 and a connecting shaft 35; a rotating hole 34 is provided on the flip block 32; a connecting shaft 35 is installed inside the rotating hole 34; one end of the torsion spring 33 is fixed to the connecting shaft 35, and the other end is fixed to the inner wall of the rotating hole 34.

[0039] The buckle assembly also includes a torsion spring 33, a rotating hole 34 and a connecting shaft 35. The torsion spring 33 can drive the flip block 32 to flip. The flipped flip block 32 will rotate on the connecting shaft 35 through the rotating hole 34 to achieve a flipping effect.

[0040] A contact 132 is provided on the solid-state battery 13; there are two contacts 132; the two contacts 132 are symmetrically arranged; an iron sheet 111 is installed on the inner wall of the shell 11; there are two iron sheets 111; the iron sheet 111 is in contact with the push rod 23; the two contacts 132 pass through the same push rod 23 and contact the two iron sheets 111 respectively.

[0041] Each solid-state battery 13 is provided with a contact 132, which is connected to the iron sheet 111, so that multiple solid-state batteries 13 in the solid-state battery pack can be connected in series. When one of the solid-state batteries 13 becomes abnormal, the push rod 23 drives the abnormal solid-state battery 13 to move. At this time, the contact 132 on the solid-state battery 13 is separated from the iron sheet 111, thereby releasing the series connection between the abnormal solid-state battery 13 and other normal solid-state batteries 13.

[0042] like Figure 4 As shown, it also includes a heat transfer component; the heat transfer component includes a heat conducting plate 41, a connecting heat conducting strip 42 and a heat conducting fixing plate 43; the heat conducting plate 41 is an aluminum metal heat conducting plate, which is installed on the inner wall of the outer shell 11; the heat conducting plate 41 is in contact with the solid-state battery 13; the heat conducting fixing plate 43 is a layer of rectangular thin sheet, which is installed above the outer shell 11; one end of the connecting heat conducting strip 42 is connected to the top of the heat conducting plate 41, and the other end passes through the outer shell 11 and is connected to the heat conducting fixing plate 43.

[0043] The heat transfer component includes a heat conductive plate 41, a connecting heat conductive strip 42 and a heat conductive fixing plate 43. The heat conductive plate 41 transfers the heat generated during the operation of the solid-state battery 13 to the connecting heat conductive strip 42, and the connecting heat conductive strip 42 transfers the heat to the heat conductive fixing plate 43, thereby transferring the heat generated during the operation of the solid-state battery 13 out of the inside of the outer shell 11.

[0044] like Figure 5As shown, a heat dissipation component is installed above the heat-conducting fixing plate 43; the heat dissipation component includes a fixing frame 51, a support frame 52, a motor 53 and a fan blade 54; the fixing frame 51 is fixed above the heat-conducting fixing plate 43; the support frame 52 is cross-shaped and connected to the fixing frame 51; the motor 53 is installed on the top of the support frame 52; the output end of the motor 53 passes through the support frame 52 and is connected to the fan blade 54.

[0045] The heat transfer component transfers the heat of the solid-state battery 13 from the inside of the housing 11 to the heat-conducting fixing plate 43 when the solid-state battery 13 is in operation. A heat dissipation component is installed above the heat-conducting fixing plate 43, and the heat dissipation component can dissipate heat. The fixing frame 51 and the support frame 52 in the heat dissipation component provide a fixing function for the motor 53 and the fan blade 51. The motor 53 in the heat dissipation component is started, and the output end of the motor 53 is connected to the fan blade 54, which will drive the fan blade 54 to rotate. The rotating fan blade 54 can blow air to the heat-conducting fixing plate 43, cool the heat-conducting fixing plate 43, and take away the heat of the heat-conducting fixing plate 43, thereby achieving the effect of dissipating heat and cooling the solid-state battery 13.

[0046] The fixing frame 51 is provided with four ventilation holes 511 .

[0047] The vent 511 can dissipate the heat generated during the operation of the solid-state battery 13 to prevent the accumulation of heat from affecting the solid-state battery 13 .

[0048] The working principle of the above embodiment is: When the solid-state battery 13 is in use, the heat emitted will be conducted to the heat-conducting plate 41, so that the heat on the heat-conducting plate 41 is conducted to the heat-conducting fixing plate 43 through the connecting heat-conducting strip 42, and the heat of the solid-state battery 13 during operation is transferred from the inside of the shell 11. At the same time, the motor 53 can be started. The output end of the motor 53 is connected to the fan blade 54, which will drive the fan blade 54 to rotate. The rotating fan blade 54 can blow air to the heat-conducting fixing plate 43, cool the heat-conducting fixing plate 43, and take away the heat of the heat-conducting fixing plate 43, thereby achieving the effect of heat dissipation and cooling of the solid-state battery 13. When the temperature of the solid-state battery 13 is too high and an abnormality occurs, the temperature sensor 14 detects and starts the drive motor 24. The output end of the drive motor 24 drives the threaded rod 21 to rotate. Through the cooperation between the threaded rod 21 and the threaded groove 25, the threaded rod 21 rotates and the thread block 22 is rotated. The push rod 23 slides horizontally in the limiting slide groove 26, and the sliding threaded block 22 drives the push rod 23 to slide, so that the push rod 23 drives the solid-state battery 13 to move, and the moving solid-state battery 13 drives the contact 132 above to disengage from the iron sheet 111, thereby releasing the series connection with other solid-state batteries 13, and the continuous movement of the push rod 23 causes the solid-state battery 13 to disengage from the mounting groove 12 and expose the two flip blocks 32, at which time the torsion spring 33 drives the flip block 32 to flip, and the flipped flip block 32 rotates on the connecting shaft 35 through the rotating hole 34 to achieve the flipping effect, and the flipped flip block 32 drives the slot 321 to disengage from the fixed block 131 on the solid-state battery 13, at which time the solid-state battery 13 is no longer restricted and disengages from the housing 11 of the rack assembly, preventing the solid-state battery 13 from overheating and affecting other solid-state batteries 13.

Claims

1. A solid-state battery pack, characterized in that: include A rack assembly, the rack assembly comprising a housing (11); a plurality of mounting slots (12) are provided on the housing (11); solid-state batteries (13) are installed in the mounting slots (12); A pushing assembly, the pushing assembly comprising a threaded rod (21), a threaded block (22) and a push rod (23); the threaded rod (21) is mounted on the housing (11); the threaded rod (21) is rotatable; a threaded block (22) is provided on the outer side of the threaded rod (21); a push rod (23) is installed on the top of the threaded block (22); the top of the push rod (23) is connected to the inner wall of the housing (11); A buckle assembly, the buckle assembly comprising a fixing plate (31) and a flip block (32); the fixing plate (31) is mounted on the inner wall of the housing (11); the flip block (32) is connected to the fixing plate (31); a card slot (321) is provided on the flip block (32); a fixing block (131) is provided on the solid-state battery (13); and the fixing block (131) is mounted in the card slot (321).

2. A solid-state battery pack according to claim 1, characterized in that: The pushing assembly further comprises a driving motor (24); the driving motor (24) is mounted on the outside of the housing (11); and the driving motor (24) is connected to the threaded rod (21).

3. A solid-state battery pack according to claim 2, characterized in that: A temperature sensor (14) is provided on the outside of the solid-state battery (13); the temperature sensor (14) is connected to the drive motor (24).

4. A solid-state battery pack according to claim 1, characterized in that: The pushing assembly further comprises a threaded groove (25); the threaded rod (21) is installed in the threaded groove (25).

5. A solid-state battery pack according to claim 1, characterized in that: The pushing assembly further comprises a limiting sliding groove (26); the threaded block (22) is slidably mounted in the limiting sliding groove (26).

6. A solid-state battery pack according to claim 1, characterized in that: The buckle assembly further comprises a torsion spring (33), a rotation hole (34) and a connecting shaft (35); the flip block (32) is provided with a rotation hole (34); the connecting shaft (35) is installed inside the rotation hole (34); one end of the torsion spring (33) is fixed to the connecting shaft (35), and the other end is fixed to the inner wall of the rotation hole (34).

7. A solid-state battery pack according to claim 1, characterized in that: The solid-state battery (13) is provided with a contact point (132); an iron sheet (111) is installed on the inner wall of the housing (11); the iron sheet (111) is in contact with the push rod (23); and the contact point (132) penetrates the push rod (23) and contacts the iron sheet (111).

8. A solid-state battery pack according to claim 1, characterized in that: Also included are heat transfer components; The heat transfer assembly comprises a heat conducting plate (41), a connecting heat conducting strip (42) and a heat conducting fixing plate (43); the heat conducting plate (41) is mounted on the inner wall of the outer shell (11); the heat conducting plate (41) is in contact with the solid-state battery (13); the heat conducting fixing plate (43) is mounted above the outer shell (11); one end of the connecting heat conducting strip (42) is connected to the top of the heat conducting plate (41), and the other end passes through the outer shell (11) and is connected to the heat conducting fixing plate (43).

9. A solid-state battery pack according to claim 8, characterized in that: A heat dissipation component is installed above the heat-conducting fixed plate (43); the heat dissipation component comprises a fixing frame (51), a support frame (52), a motor (53) and a fan blade (54); the fixing frame (51) is fixed above the heat-conducting fixed plate (43); the support frame (52) is connected to the fixing frame (51); the motor (53) is installed on the top of the support frame (52); and the output end of the motor (53) passes through the support frame (52) and is connected to the fan blade (54).

10. A solid-state battery pack according to claim 9, characterized in that: The fixing frame (51) is provided with a ventilation hole (511).