Waterproof structure of ignition switch

Abstract

The invention relates to an ignition switch waterproof structure, and belongs to the field of ignition switches, the ignition switch waterproof structure comprises a shell, a rotor, an electric connection part, a first sealing element and a second sealing element, the rotor is rotatably arranged on the inner wall of the shell and is used for rotating under the driving of a key, and the electric connection part is arranged on the shell and is used for being electrically connected with a vehicle power supply when the rotor rotates; the first sealing element is arranged on the shell and used for sealing the rotor and the inner wall of the shell, the second sealing element is arranged on the shell and used for sealing the rotor in the shell, and a sealed space is formed between the first sealing element and the second sealing element; and the communication part of the electric connection part and the shell is positioned in a sealed space formed between the first sealing element and the second sealing element. The ignition switch system has the effects of reducing the possibility that water enters the electric connection part, solving the problem of short circuit caused by easy infiltration of rainwater when the ignition switch is used in an outleakage environment, and improving the application range and the use stability of the ignition switch system.

Description

Technical Field

[0001] The present application relates to the field of ignition switches, and in particular to a waterproof structure of an ignition switch. Background Art

[0002] The ignition switch is the switch of the vehicle's ignition system. It is mainly composed of a key, a key socket, external wires and plugs. It can turn on or off the vehicle power and ignite. It is the main gate that controls the entire vehicle's circuit system.

[0003] Currently, ignition switches are primarily used inside the cab or in vehicles with a cab. When used on vehicles like open-top tricycles and motorcycles, leaking ignition switch systems can easily seep in during rainy or snowy weather, causing a short circuit in the ignition switch system and preventing the vehicle from starting successfully. Summary of the Invention

[0004] In order to improve the problem that an ignition switch is easily infiltrated by rainwater and causes a short circuit when used in an outdoor environment, the present application provides a waterproof structure for an ignition switch.

[0005] The present application provides an ignition switch waterproof structure that adopts the following technical solutions: A waterproof structure for an ignition switch includes a housing, a rotor, an electrical connection, a first seal, and a second seal. The rotor is rotatably disposed on the inner wall of the housing and is used to rotate under the drive of a key. The electrical connection is disposed on the housing and is used to electrically connect to a vehicle power supply when the rotor rotates. The first seal is disposed on the housing and is used to seal the rotor from the inner wall of the housing. The second seal is disposed on the housing and is used to enclose the rotor within the housing. A sealed space is formed between the first seal and the second seal. The connection between the electrical connection and the housing is located within the sealed space formed between the first seal and the second seal.

[0006] By adopting the above technical solution, the first seal seals the housing and the rotor, and the second seal seals the rotor in the housing, so that the first seal and the second seal can cooperate with the inner wall of the housing and the rotor to form a closed space, and then the connection between the electrical connection part and the housing is set at the position of the sealed space formed by the first seal and the second seal. The first seal blocks water from entering the sealed space from one end of the housing, and the second seal blocks water from entering the sealed space from the other end of the housing, thereby realizing axial waterproofing and radial waterproofing of the sealed space where the electrical connection part is located during the rotation of the rotor and the ignition process, reducing the possibility of water entering the electrical connection part, improving the problem of rainwater seepage and short circuit when the ignition switch is used in a leaky environment, and improving the application range and usage stability of the ignition switch system.

[0007] Optionally, the first sealing member includes a sealing ring, which is circumferentially arranged on the inner wall of the housing and sleeved on the outer circumference of the rotor.

[0008] By adopting the above technical solution, the first sealing ring is respectively pressed against the inner wall of the housing and the outer periphery of the rotor, thereby being able to seal the rotor radially during the rotation of the rotor, reducing the possibility of water leaking from between the rotor and the housing to the electrical connection part.

[0009] Optionally, the second sealing member includes a sealing gasket and a sealing cover, wherein the sealing gasket is arranged on the outer shell, and the sealing cover is arranged on the outer shell and is used to press the sealing gasket against the outer shell.

[0010] By adopting the above technical solution, the sealing cover drives the sealing gasket to press against the housing, thereby sealing one end of the housing and reducing the possibility of water penetrating into the housing from the side of the sealing gasket.

[0011] Optionally, the electrical connection part includes a conductive sheet, a power-on block and an ignition block, wherein a plurality of the conductive sheets are arranged on the outer shell and are electrically connected to the vehicle power supply, the power-on block is arranged on the rotor and is used to interfere with the conductive sheet when the key drives the rotor to rotate to the power-on position, and the ignition block is arranged on the rotor and is used to interfere with the conductive sheet when the key drives the rotor to rotate to the ignition position.

[0012] By adopting the above technical solution, the user drives the rotor to rotate through the key, and the rotor drives the power block and the ignition block to rotate. When it is rotated to the power-on position, the power block contacts the conductive sheet and energizes, thereby enabling the vehicle to be powered. When it is rotated to the ignition position, the ignition block contacts the conductive sheet and energizes, thereby enabling the vehicle to be ignited.

[0013] Optionally, a return torsion spring is provided on the housing, and the return torsion spring is connected to the rotor. The return torsion spring always has a tendency to drive the rotor to rotate from the ignition gear position to the power-on gear position.

[0014] By adopting the above technical solution, when the key drives the rotor to rotate to the ignition gear, the rotor drives the reset torsion spring to twist. After the user releases the key, the reset torsion spring has a tendency to rotate and drives the rotor to rotate from the ignition gear to the power gear, thereby conveniently and quickly realizing the rotation and reset of the key and rotor after the user turns the key to ignite.

[0015] Optionally, the rotor is provided with a damping assembly for increasing the resistance required for the rotor rotation, the damping assembly includes a damping spring and a resistance ball, the damping spring is provided on the rotor, and the resistance ball is provided on the damping spring and pressed against the inner wall of the housing.

[0016] By adopting the above technical solution, the damping spring drives the contact ball to contact the inner wall of the shell, thereby increasing the resistance required to drive the rotor to rotate, increasing the damping feeling when the rotor is driven to rotate by the key, and improving the user's feel when turning the key.

[0017] Optionally, a locking mechanism for locking the vehicle steering wheel is provided on the housing, and the locking mechanism includes an action block, a locking block and a driving assembly. The action block is slidably provided on the housing, and the locking block is slidably provided on the housing and is used to be inserted into or pulled out from the rotating shaft of the vehicle steering wheel under the drive of the action block. The driving assembly is provided on the housing and is used to drive the action block to move.

[0018] By adopting the above technical solution, when the rotor rotates to the ignition gear, the driving component drives the action block to move in the direction away from the locking block, and the action block can pull the locking block out from the rotating shaft of the vehicle steering wheel, thereby releasing the lock of the vehicle steering wheel. After the vehicle is turned off, the rotor rotates and resets, and the driving component drives the action block to move in the direction close to the locking block, and the action block drives the locking block to be inserted into the rotating shaft of the vehicle steering wheel, thereby locking the vehicle steering wheel and improving the safety of the vehicle after the engine is turned off.

[0019] Optionally, the drive assembly includes a drive block and a tension spring, the drive block is arranged on the action block, and the rotor is provided with an inclined surface that abuts the drive block. When the rotor rotates to the ignition gear, the inclined surface abuts the drive block and slides in the direction away from the locking block. The tension spring is arranged on the outer shell and is used to drive the drive block to move in the direction close to the locking block.

[0020] By adopting the above technical solution, when the rotor rotates to the ignition gear, the inclined surface on the rotor squeezes the drive block, which can drive the action block to move away from the locking block. During the process, the tension spring is squeezed and tends to stretch. After the rotor rotates and resets, the inclined surface no longer squeezes the drive block, and the tension spring stretches and resets to drive the action block to move toward the locking block, thereby conveniently and quickly realizing the unlocking of the vehicle steering wheel after ignition and the locking after the engine is turned off.

[0021] Optionally, the outer shell is provided with an anti-theft component for locking the locking block in a state of locking the vehicle steering wheel, the anti-theft component includes a locking block, a locking spring and a blocking member, the locking block is slidably arranged on the outer shell, a locking groove is provided on the locking block, the locking spring is arranged on the outer shell and is used to drive the locking block to slide into the locking groove, and the blocking member is arranged on the outer shell and is used to prevent the locking block from sliding into the locking groove.

[0022] By adopting the above technical solution, when the ignition switch is working normally, the blocking member prevents the locking block from sliding into the locking groove, and the locking block can slide normally. After the blocking member on the locking block is released, the locking spring drives the locking block to slide into the locking groove, and the locking block abuts against the side wall of the locking groove, thereby locking the sliding of the locking block, and then locking the locking block in a state of locking the vehicle steering wheel, thereby improving the stability of the locking block in locking the vehicle steering wheel.

[0023] Optionally, the blocking member includes a blocking rod and a blocking spring, the blocking rod is slidably arranged on the outer shell, the two ends of the blocking rod are respectively abutted against the outer shell and the locking block, and the blocking spring is arranged on the outer shell and has a tendency to drive the blocking rod to move away from the locking block.

[0024] By adopting the above technical solution, after the shell is destroyed, the shell no longer abuts against the blocking rod, and the blocking spring drives the blocking rod to move away from the locking block, releasing the blocking of the locking block by the blocking rod. The locking block can then lock the locking block, so that the vehicle steering wheel can still be locked after the ignition switch is violently damaged, thereby improving the vehicle's anti-theft performance.

[0025] In summary, this application includes at least one of the following beneficial technical effects: The axial and radial waterproofing of the sealed space where the electrical connection is located during the rotor rotation and ignition process is achieved, reducing the possibility of water entering the electrical connection, improving the problem of rainwater seepage and short circuit when the ignition switch is used in a leaky environment, and improving the application range and stability of the ignition switch system; After the vehicle is turned off, the rotor rotates back to its original position, and the drive assembly drives the action block to move toward the locking block. The action block drives the locking block to be inserted into the rotating shaft of the vehicle's steering wheel, thereby locking the vehicle's steering wheel and improving the safety of the vehicle after the engine is turned off. After the outer shell is destroyed, the outer shell no longer abuts against the blocking rod, and the blocking spring drives the blocking rod to move away from the locking block, releasing the blocking of the locking block by the blocking rod. The locking block can then lock the locking block, so that the vehicle steering wheel can still be locked after the ignition switch is violently damaged, thereby improving the vehicle's anti-theft performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the ignition switch waterproof structure of an embodiment of the present application.

[0027] Figure 2 It is a schematic diagram of the cross-sectional structure of the shell of an embodiment of the present application.

[0028] Figure 3 Schematic diagram of the structure of the rotor and electrical connection part of an embodiment of the present application (the rotor is partially cut away in the figure).

[0029] Figure 4 Schematic diagram of the structure of the rotor and the return torsion spring in an embodiment of the present application.

[0030] Figure 5 It is a structural schematic diagram of the rotor, locking mechanism and anti-theft component of an embodiment of the present application.

[0031] Figure numerals: 1. outer shell; 2. rotor; 3. electrical connection; 31. conductive sheet; 32. power block; 33. spark block; 4. first seal; 41. sealing ring; 5. second seal; 51. sealing gasket; 52. sealing cover; 6. reset torsion spring; 7. damping assembly; 71. damping spring; 72. resistance ball; 8. locking mechanism; 81. action block; 82. locking block; 83. driving assembly; 831. driving block; 832. tension spring; 9. anti-theft assembly; 91. locking block; 92. locking spring; 93. blocking member; 931. blocking rod; 932. blocking spring; 10. limit plate. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-5 This application is described in further detail.

[0033] The embodiment of the present application discloses a waterproof structure for an ignition switch.

[0034] Reference Figure 1 、 Figure 2 The ignition switch waterproof structure includes a housing 1, a rotor 2, an electrical connection part 3, a first seal 4, a second seal 5, a damping component 7, a locking mechanism 8 and an anti-theft component 9.

[0035] Reference Figure 2 The rotor 2 is rotatably mounted on the inner wall of the housing 1. In this embodiment, a limit plate 10 is mounted on the housing 1. Two limit blocks are mounted on the limit plate 10. One limit block is used to abut against the rotor 2 when the key drives the rotor 2 to rotate to the maximum limit in the ignition direction, and the other limit block is used to abut against the rotor 2 when the key drives the rotor 2 to rotate to the maximum limit for reset, thereby limiting the rotation angle of the rotor 2 under the drive of the key.

[0036] Reference Figure 2 、 Figure 3The electrical connection part 3 is installed on the shell 1. The electrical connection part 3 is used to electrically connect to the vehicle power supply when the rotor 2 rotates. The electrical connection part 3 includes a conductive sheet 31, a power-on block 32 and a spark block 33. A plurality of conductive sheets 31 are installed on the shell 1. In this embodiment, three conductive sheets 31 are installed on the shell 1 at intervals. The three conductive sheets 31 are all electrically connected to the vehicle power supply. The conductive sheets 31 are made of copper; the power-on block 32 is installed on the rotor 2. The power-on block 32 is used to interfere with two of the conductive sheets 31 when the key drives the rotor 2 to rotate to the power-on position. The spark block 33 is installed on the rotor 2. The spark block 33 is used to contact with two of the conductive sheets 31 when the key drives the rotor 2 to rotate to the ignition position. In this embodiment, the power-on block 32 and the spark block 33 are also made of copper.

[0037] The user inserts the key and turns the key to drive the rotor 2 to rotate. When the rotor 2 rotates to the power-on position, the rotor 2 drives the power-on block 32 to rotate until it contacts two of the conductive sheets 31 to form a passage, thereby enabling the vehicle to be powered. At this time, the ignition block 33 only contacts one conductive sheet 31. The key is continued to be turned. When the key drives the rotor 2 to rotate to the ignition position, the rotor 2 drives the ignition block 33 to contact two conductive sheets 31 to form a passage, thereby enabling the vehicle to be ignited.

[0038] Reference Figure 2 The damping assembly 7 is installed on the rotor 2. The damping assembly 7 is used to increase the resistance required for the rotation of the rotor 2. The damping assembly 7 includes a damping spring 71 and a resistance ball 72. The damping spring 71 is installed on the rotor 2. The resistance ball 72 is installed at the end of the damping spring 71 away from the rotor 2. The resistance ball 72 is pressed against the inner wall of the housing 1.

[0039] The damping spring 71 drives the contact ball 72 to press against the inner wall of the housing 1, thereby increasing the damping required to be overcome when the rotor 2 rotates, increasing the damping feeling required for the user to drive the rotor 2 to rotate by the key, and thus improving the user's feel when turning the key to operate.

[0040] Reference Figure 2 、 Figure 4 A return torsion spring 6 is mounted on the housing 1 and connected to the rotor 2. The return torsion spring 6 always tends to drive the rotor 2 to rotate from the ignition position to the power position. When the user uses the key to drive the rotor 2 from the power position to the ignition position, the return torsion spring 6 is driven to twist. After ignition, the user releases the key, and the return torsion spring 6 has a tendency to rotate, thereby driving the rotor 2 to rotate from the ignition position to the power position. This conveniently and quickly drives the rotor 2 to rotate and return to the power position after ignition.

[0041] Reference Figure 2 、 Figure 5The locking mechanism 8 is mounted on the housing 1. The locking mechanism 8 is used to lock the vehicle steering wheel. The locking mechanism 8 includes an action block 81, a locking block 82 and a driving assembly 83. The action block 81 is slidably mounted on the housing 1. The locking block 82 is slidably mounted on the housing 1 and connected to the action block 81. The locking block 82 is used to be inserted into or extracted from the rotating shaft of the vehicle steering wheel. The driving assembly 83 is mounted on the housing 1. The driving assembly 83 is used to drive the action block 81 to move toward or away from the locking block 82. The driving assembly 83 includes a driving block 831 and a tension spring 832. The driving block 831 is installed on the locking block 82. An inclined surface is provided on the rotor 2, and the inclined surface abuts against the driving block 831. The inclined surface is used to drive the driving block 831 to move away from the locking block 82 when the rotor 2 rotates and resets. One end of the tension spring 832 is installed on the housing 1, and the other end of the tension spring 832 is installed on the driving block 831. The tension spring 832 always has a tendency to drive the driving block 831 to move in the direction close to the locking block 82.

[0042] When the rotor 2 rotates to the ignition gear, the inclined surface on the rotor 2 squeezes the driving block 831 as the rotor 2 rotates, causing the driving block 831 to move in the direction away from the locking block 82, and the driving block 831 drives the action block 81 to move in the direction away from the locking block 82, and the action block 81 can pull the locking block 82 out of the rotating shaft of the vehicle steering wheel, thereby releasing the lock of the vehicle steering wheel. During this process, the tension spring 832 is compressed as the driving block 831 moves, thereby causing the tension spring 832 to have a tendency to drive the driving block 831 to move in the direction close to the locking block 82; when the vehicle is turned off, the user can turn on the The key drives the rotor 2 to rotate and reset to its initial state. The rotor 2 drives the inclined surface to rotate until it no longer squeezes the driving block 831. The tension spring 832 can drive the driving block 831 to move in the direction close to the locking block 82. The driving block 831 drives the action block 81 to move in the direction close to the locking block 82. The action block 81 can drive the locking block 82 to move to the shaft inserted into the vehicle steering wheel, thereby locking the vehicle steering wheel and improving the safety of the vehicle after the engine is turned off. The entire process of locking and unlocking the vehicle steering wheel does not require additional operation by the user, which improves the convenience of unlocking the vehicle steering wheel after ignition and locking it after the engine is turned off.

[0043] Reference Figure 2 、 Figure 5The anti-theft component 9 is mounted on the housing 1. The anti-theft component 9 is used to lock the locking block 82 in the state of locking the vehicle steering wheel. The anti-theft component 9 includes a locking block 91, a locking spring 92 and a blocking member 93. The locking block 91 is slidably mounted on the housing 1. A locking groove for the locking block 91 to slide into is opened on the locking block 82 along the sliding direction of the locking block 91. The locking spring 92 is mounted on the housing 1. The locking spring 92 always has a tendency to drive the locking block 91 to slide toward the locking groove; the blocking member 93 is mounted on the housing 1. The blocking member 93 is used to prevent the locking block 91 from sliding into the locking groove. The blocking member 93 includes a blocking rod 931 and a blocking spring 932. The blocking rod 931 is slidably installed on the outer shell 1. One end of the blocking rod 931 abuts against the outer shell 1, and the other end of the blocking rod 931 abuts against the side of the locking block 91 close to the locking block 82. The blocking spring 932 is installed on the outer shell 1. The blocking spring 932 is connected to the blocking rod 931. The blocking spring 932 always has a tendency to drive the blocking rod 931 to move away from the locking block 91.

[0044] When the ignition switch is working normally, the housing 1 blocks the blocking rod 931, so that the blocking rod 931 can be maintained in a state of abutting the locking block 91 on the side close to the locking block 82, thereby keeping the locking block 91 away from the locking block 82, and the locking block 82 can slide normally, thereby enabling the vehicle steering wheel to be unlocked and locked normally; if the ignition switch is damaged by external force, resulting in the housing 1 being damaged, the housing 1 no longer supports the blocking rod 931, and the blocking rod 931 can be locked under the action of the blocking spring 932 By moving downward in the direction away from the locking block 91, the blocking rod 931 no longer blocks the locking block 91, and the locking block 91 moves in the direction close to the locking block 82 under the action of the locking spring 92. The locking block 91 is inserted into the locking groove on the locking block 82, thereby locking the movement of the locking block 82, locking the locking block 82 in the state of locking the vehicle steering wheel, so that the vehicle steering wheel can still be locked after the ignition switch is violently damaged, thereby improving the stability of the vehicle steering wheel locked by the locking block 82 and improving the vehicle anti-theft performance.

[0045] Reference Figure 2 The first seal 4 is mounted on the housing 1 and is used to seal the rotor 2 and the inner wall of the housing 1. The first seal 4 includes a sealing ring 41. The sealing ring 41 is circumferentially mounted on the housing 1 and is tightly pressed against the rotor 2 circumferentially. In this embodiment, lubricating oil is applied to the contact area between the sealing ring 41 and the rotor 2 to reduce wear between the rotor 2 and the sealing ring 41 and to increase the service life of the sealing ring 41.

[0046] The outer ring of the sealing ring 41 is mounted on the inner wall of the housing 1 , and the inner ring of the sealing ring 41 is pressed against the outer circumference of the rotor 2 , thereby sealing the rotor 2 from the inner wall of the housing 1 . This seals the rotor 2 in radial direction during the rotation of the rotor 2 , reducing the possibility of water leaking from between the rotor 2 and the housing 1 to the electrical connection 3 .

[0047] Reference Figure 2 The second seal 5 is installed on the housing 1. The second seal 5 is used to seal the rotor 2 in the housing 1. The second seal 5 includes a sealing gasket 51 and a sealing cover 52. The sealing gasket 51 is installed on the housing 1, and the sealing cover 52 is installed on the housing 1. The sealing cover 52 presses the sealing gasket 51 against the housing 1, so that the sealing gasket 51 seals one end of the housing 1, reducing the possibility of water penetrating into the interior of the housing 1 from the side of the sealing gasket 51.

[0048] Reference Figure 2 、 Figure 3 The sealing gasket 51 and the sealing ring 41 cooperate with the inner wall of the shell 1 and the outer wall of the rotor 2 to form a sealed space. Multiple conductive sheets 31, power blocks 32 and ignition blocks 33 are all located in the sealed space formed between the first seal 4 and the second seal 5.

[0049] The implementation principle of the waterproof structure of an ignition switch in an embodiment of the present application is as follows: the sealing ring 41 seals the inner wall of the outer shell 1 and the rotor 2, and the sealing gasket 51 seals the sealing cover 52 side of the outer shell 1, so that the sealed space formed between the sealing ring 41 and the sealing gasket 51 protects the multiple conductive plates 31, the power block 32 and the ignition block 33, reduces the possibility of water entering the sealed space from the sealing ring 41 side, and reduces the possibility of water entering the sealed space from the sealing gasket 51 side, so as to achieve axial waterproofness and radial waterproofness of the sealed space where the multiple conductive plates 31, the power block 32 and the ignition block 33 are located during the rotation of the rotor 2 for powering and ignition, improves the problem of the ignition switch being easily short-circuited due to rainwater seepage when used in an external leakage environment, and improves the application range and usage stability of the ignition switch system.

[0050] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A waterproof structure for an ignition switch, characterized by: The invention comprises a housing (1), a rotor (2), an electrical connection part (3), a first sealing member (4) and a second sealing member (5), wherein the rotor (2) is rotatably arranged on the inner wall of the housing (1) and is used to rotate under the drive of a key, the electrical connection part (3) is arranged on the housing (1) and is used to be electrically connected to the vehicle power supply when the rotor (2) rotates, the first sealing member (4) is arranged on the housing (1) and is used to seal the rotor (2) with the inner wall of the housing (1), the second sealing member (5) is arranged on the housing (1) and is used to enclose the rotor (2) in the housing (1), a sealed space is formed between the first sealing member (4) and the second sealing member (5), and the connection point between the electrical connection part (3) and the housing (1) is located in the sealed space formed between the first sealing member (4) and the second sealing member (5).

2. The ignition switch waterproof structure according to claim 1, characterized in that: The first sealing member (4) comprises a sealing ring (41), wherein the sealing ring (41) is circumferentially arranged on the inner wall of the housing (1) and sleeved on the outer circumference of the rotor (2).

3. The ignition switch waterproof structure according to claim 1, characterized in that: The second sealing member (5) comprises a sealing gasket (51) and a sealing cover (52), wherein the sealing gasket (51) is arranged on the housing (1), and the sealing cover (52) is arranged on the housing (1) and is used to press the sealing gasket (51) against the housing (1).

4. The ignition switch waterproof structure according to claim 1, characterized in that: The electrical connection portion (3) comprises a conductive sheet (31), a power supply block (32) and an ignition block (33). A plurality of the conductive sheets (31) are provided on the housing (1) and are electrically connected to the vehicle power supply. The power supply block (32) is provided on the rotor (2) and is used to contact the conductive sheet (31) when the key drives the rotor (2) to rotate to the power supply position. The ignition block (33) is provided on the rotor (2) and is used to contact the conductive sheet (31) when the key drives the rotor (2) to rotate to the ignition position.

5. The ignition switch waterproof structure according to claim 1, characterized in that: A return torsion spring (6) is provided on the housing (1), and the return torsion spring (6) is connected to the rotor (2). The return torsion spring (6) always has a tendency to drive the rotor (2) to rotate from the ignition gear position to the power-on gear position.

6. The ignition switch waterproof structure according to claim 1, characterized in that: The rotor (2) is provided with a damping assembly (7) for increasing the resistance required for the rotation of the rotor (2). The damping assembly (7) comprises a damping spring (71) and a contact ball (72). The damping spring (71) is provided on the rotor (2), and the contact ball (72) is provided on the damping spring (71) and pressed against the inner wall of the housing (1).

7. The ignition switch waterproof structure according to claim 1, characterized in that: The housing (1) is provided with a locking mechanism (8) for locking the vehicle steering wheel. The locking mechanism (8) comprises an action block (81), a locking block (82) and a driving assembly (83). The action block (81) is slidably provided on the housing (1). The locking block (82) is slidably provided on the housing (1) and is used to be inserted into or extracted from the rotating shaft of the vehicle steering wheel under the drive of the action block (81). The driving assembly (83) is provided on the housing (1) and is used to drive the action block (81) to move.

8. The ignition switch waterproof structure according to claim 7, characterized in that: The driving assembly (83) comprises a driving block (831) and a tension spring (832), wherein the driving block (831) is arranged on the action block (81), and the rotor (2) is provided with an inclined surface abutting against the driving block (831). When the rotor (2) rotates to the ignition gear position, the inclined surface abuts against the driving block (831) and slides in a direction away from the locking block (82). The tension spring (832) is arranged on the housing (1) and is used to drive the driving block (831) to move in a direction close to the locking block (82).

9. The ignition switch waterproof structure according to claim 7, characterized in that: The housing (1) is provided with an anti-theft component (9) for locking the locking block (82) in a state of locking the vehicle steering wheel. The anti-theft component (9) comprises a locking block (91), a locking spring (92) and a blocking member (93). The locking block (91) is slidably provided on the housing (1). A locking groove is provided on the locking block (82). The locking spring (92) is provided on the housing (1) and is used to drive the locking block (91) to slide into the locking groove. The blocking member (93) is provided on the housing (1) and is used to block the locking block (91) from sliding into the locking groove.

10. The ignition switch waterproof structure according to claim 9, characterized in that: The blocking member (93) comprises a blocking rod (931) and a blocking spring (932). The blocking rod (931) is slidably arranged on the housing (1). Two ends of the blocking rod (931) are respectively in contact with the housing (1) and the locking block (91). The blocking spring (932) is arranged on the housing (1) and has a tendency to drive the blocking rod (931) to move in a direction away from the locking block (91).

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