Waterproof power supply lock for electric vehicle
The electric vehicle power lock is enhanced with a sealed board and 'O' ring seal, along with dual drainage outlets, to address water ingress issues, improving waterproofing and electrical safety, ensuring reliable operation in diverse weather conditions.
Patent Information
- Application Number
- CN202422322606.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-24
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-24
AI Technical Summary
When a traditional electric vehicle power lock is in rainy days or wading in water, rainwater penetrates into the electrical connection components through the connecting groove, resulting in electrical failures such as short circuits, affecting safety and service life.
The sealing plate and the sealing groove are arranged on the rotor, and a 'O' type sealing ring is installed, and a first drain port is arranged on one side of the lock core assembly. A second drain port is arranged on the outer wall of the rotor to form a sealing structure to isolate the lock core assembly and electrical connection assembly. Combined with the matching design of the turntable and the outer shell, it can achieve good drainage.
It significantly improves the waterproof performance of the power lock, avoids the risk of short circuit caused by moisture intrusion, extends the service life, is suitable for a variety of weather conditions, and expands market coverage.
Smart Images

Figure CN223108757U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of electric vehicle accessories, and particularly relates to a waterproof power lock for an electric vehicle. Background Art
[0002] With the enhancement of environmental awareness and the increasing prominence of urban traffic congestion problems, electric vehicles, as a clean and convenient means of transportation, are increasingly favored by people. In daily use, electric vehicles are affected by various environmental factors, and the impact of rain on electric vehicle components, especially the power lock, is particularly significant.
[0003] In the design of traditional electric vehicle power locks, the lock core assembly and the electrical connection assembly are usually arranged on both sides of the rotor to achieve the integration of mechanical locking and electrical control functions (such as a waterproof power lock for an electric vehicle disclosed in the patent application No. CN2023208189073). However, in such a structural design, a connection groove for connecting with the lock core column is provided on the rotor (relative to the rotating lock column in the comparative patent), and the connection groove connects the lock core assembly and the electrical connection assembly, becoming a channel for rainwater to flow from the lock core side to the electrical connection assembly side. When an electric vehicle encounters rainy weather or wades through water, external moisture easily penetrates to the electrical connection assembly through this connection groove, causing electrical faults such as short circuits, seriously affecting the safety and service life of the power lock, and at the same time reducing the user experience.
[0004] In response to the above problems, existing solutions often focus on enhancing the sealing performance of the external housing, but these methods cannot fundamentally solve the problem of internal water seepage caused by the connection groove. Therefore, how to effectively isolate the space between the lock core assembly and the electrical connection assembly, prevent rainwater from directly entering the electrical connection assembly area along the connection groove, and ensure a good drainage mechanism has become the key to improving the waterproof performance of the electric vehicle power lock.
[0005] Based on the above considerations, this application proposes a new design scheme for a waterproof power lock for an electric vehicle, aiming to achieve a better waterproof effect by improving the internal structure of the rotor and adding specific sealing measures, so as to provide a more reliable and safe product experience for users. Summary of the Utility Model
[0006] Aiming at the deficiencies in the background art, the utility model provides a waterproof power lock for an electric vehicle.
[0007] The technical solution adopted by the present utility model is: an electric vehicle waterproof power lock, which includes a lock core assembly, a rotor assembly connected to the lock core assembly, and a housing body sleeved outside the lock core assembly and the rotor assembly. The rotor assembly includes a rotor and an electrical connection component. A connection groove for connecting with the lock core column of the lock core assembly is provided on the rotor. A sealing plate is arranged at the bottom of the connection groove. A sealing groove is provided on the outer wall of the rotor. An "O" - shaped sealing ring is installed in the sealing groove. A first drain port is provided on the housing body near the "O" - shaped sealing ring on one side of the lock core assembly.
[0008] Further, the sealing plate is integrally formed with the rotor.
[0009] Further, the electrical connection component includes a turntable, a spring, a connection piece, and an electrical connection piece arranged on the turntable. A plurality of spring cavities for installing springs are spaced inside the rotor, and the turntable is connected to the rotor.
[0010] Further, a second drain port is provided on the outer wall of the rotor on one side of the electrical connection component.
[0011] Further, there are two first drain ports, which are respectively arranged on both sides of the housing body.
[0012] Further, connection steps are spaced on the outer periphery of the turntable, and a connection port for connecting and cooperating with the above - mentioned connection steps is provided on the housing body.
[0013] The beneficial effects of the present utility model are:
[0014] 1. Improve waterproof performance: By adding a sealing plate at the bottom of the connection groove, arranging a sealing groove on the outer wall of the rotor, and installing an "O" - shaped sealing ring in the sealing groove, the spaces on both sides of the rotor are effectively separated, forming a good sealing structure. This design can prevent rainwater entering from one side of the lock core assembly from directly penetrating through the connection groove to the side of the electrical connection component, thus significantly improving the overall waterproof performance of the power lock.
[0015] 2. Enhance electrical safety: Since the electrical connection component is better protected, the risk of short - circuit or other electrical faults caused by moisture intrusion is avoided, ensuring the stability and safety of the power lock during operation and extending its service life.
[0016] 3. Optimize the drainage mechanism: A first drain port is provided on the housing body near the "O" - shaped sealing ring, so that even if a small amount of moisture enters this side of the lock core assembly, it can be quickly drained out and will not accumulate to form a hidden danger. This design not only improves the durability of the product but also reduces problems such as corrosion caused by water accumulation.
[0017] 4. Wide range of applications: The improved waterproof power lock for electric vehicles is not only suitable for use in ordinary environments, but also performs excellently in areas that are often exposed to wet or harsh weather conditions. It provides a more reliable option for electric vehicle manufacturers and helps to expand the product market coverage.
[0018] In addition to the purposes, features, and advantages described above, the present utility model has other purposes, features, and advantages. The following will refer to the accompanying drawings for a further detailed description of the present utility model. Brief Description of the Drawings
[0019] Figure 1 It is a schematic structural diagram of the present utility model.
[0020] Figure 2 It is a schematic cross-sectional view of the present utility model.
[0021] Figure 3 It is an exploded view of the present utility model.
[0022] Figure 4 It is an exploded view of the present utility model from another perspective.
[0023] Figure 5 It is an exploded view at the rotor assembly.
[0024] Figures 1-5 In the figure: 1. Lock core assembly; 2. Rotor assembly; 3. Outer housing; 4. Rotor; 5. Electrical connection assembly; 6. Lock core column; 7. Connection groove; 8. Sealing plate; 9. Sealing groove; 10. "O" - ring seal; 11. First drain port; 12. Turntable; 13. Spring; 14. Electrical connection piece; 15. Spring cavity; 16. Second drain port; 17. Connection step; 18. Connection port; 19. Electrical connection piece. Detailed Description of the Specific Embodiment
[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0026] It should be noted that if there are directional indications (such as up, down, left, right, front, back...) involved in the embodiments of the present utility model, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.
[0027] The present utility model provides a waterproof power lock for an electric vehicle.
[0028] In this embodiment, referring to Figures 1-5 , the waterproof power lock for the electric vehicle includes a lock core assembly 1, a rotor assembly 2 connected to the lock core assembly 1, and a housing 3 sleeved outside the lock core assembly 1 and the rotor assembly 2. The rotor assembly includes a rotor 4 and an electrical connection assembly 5. A connection groove 7 for connecting with a lock core column 6 of the lock core assembly is provided on the rotor. A sealing plate 8 is arranged at the bottom of the connection groove 7. A sealing groove 9 is provided on the outer wall of the rotor 4, and an "O" - shaped sealing ring 10 is installed in the sealing groove 9. A first drain port 11 is provided on the housing at one side of the lock core assembly near the "O" - shaped sealing ring 10.
[0029] In the above - mentioned technical solution, by providing a sealing plate at the bottom of the connection groove, the rotor is a sealed structure, which can isolate the space on both sides of the electrical connection assembly and the lock core assembly. And a sealing groove with an "O" - shaped sealing ring is provided on the outer wall of the rotor, so that rainwater entering from one side of the lock core assembly can be effectively prevented from flowing directly to the side of the electrical connection assembly through the connection groove. At the same time, the first drain port provided on one side of the lock core assembly can ensure that even if a small amount of moisture enters one side of the lock core assembly, it can be quickly discharged, thus improving the waterproof performance and electrical safety of the entire power lock.
[0030] Specifically, the sealing plate and the rotor are integrally formed.
[0031] In this embodiment, designing the sealing plate and the rotor as an integrally formed structure not only simplifies the manufacturing process, reduces the assembly steps, but also enhances the stability and durability of the overall structure. The one - piece design also reduces the possible seams and further improves the waterproof performance.
[0032] Specifically, the electrical connection assembly includes a turntable 12, a spring 13, an electrical connection piece 19, and an electrical connection plate 14 arranged on the turntable. A plurality of spring cavities 15 for installing the spring 13 are spaced in the rotor, and the turntable is connected to the rotor.
[0033] In this embodiment, the electrical connection assembly includes components such as a turntable, a spring, and an electrical connection plate, and a plurality of spring cavities for installing the spring are provided in the rotor. Such a design enables the electrical connection assembly to have a certain elastic buffering effect while maintaining good electrical connection, which helps to reduce the impact of external shocks on the internal circuit and improve the reliability and service life of the system.
[0034] Specifically, a second drain port 16 is provided on the outer wall of one side of the rotor where the electrical connection assembly is located.
[0035] In this embodiment, a second drain port is added to the outer wall on one side of the rotor, providing a drainage channel for the space on one side of the electrical connection component and further improving its waterproof performance.
[0036] Specifically, there are two first drain ports, which are respectively arranged on both sides of the outer housing.
[0037] In this embodiment, two first drain ports are respectively arranged on both sides of the outer housing, forming a more effective drainage structure. This can not only accelerate the drainage speed, but also ensure that no matter what installation posture the power lock is in, the moisture entering the housing can be effectively discharged, greatly reducing the risk of water damage.
[0038] Specifically, connecting steps 17 are arranged at intervals on the outer periphery of the turntable, and a connection port 18 for connecting and cooperating with the above connecting steps is arranged on the outer housing.
[0039] In this embodiment, the connecting steps arranged at intervals on the outer periphery of the turntable are used in cooperation with the connection port on the outer housing for the installation and positioning of the turntable.
[0040] All technicians should note that although the present utility model has been described according to the above specific embodiments, the idea of the present utility model is not limited to this utility model only. Any modification using the idea of the present utility model will be included in the scope of protection of this patent right.
Claims
1. An electric vehicle waterproof power lock, comprising a lock core assembly, a rotor assembly connected to the lock core assembly, and a housing body sleeved outside the lock core assembly and the rotor assembly. The rotor assembly includes a rotor and an electrical connection component. A connection groove for connecting with a lock core column of the lock core assembly is provided on the rotor. It is characterized in that: A sealing plate is provided at the bottom of the connection groove. A sealing groove is provided on the outer wall of the rotor, and an "O" - ring seal is installed in the sealing groove. A first drain port is provided on the outer housing near the "O" - ring seal on one side of the lock core assembly.
2. The waterproof power lock for electric vehicles according to claim 1, wherein: The sealing plate is integrally formed with the rotor.
3. The waterproof power lock for electric vehicle according to claim 1, wherein: The electrical connection component includes a turntable, a spring, a connection piece, and an electrical connection piece provided on the turntable. A plurality of spring cavities for installing springs are spacedly arranged in the rotor, and the turntable is connected to the rotor.
4. The waterproof power lock for electric vehicle according to claim 1 or 3, characterized in that: A second drain port is provided on the outer wall of the rotor on one side of the electrical connection component.
5. The waterproof power lock for electric vehicle according to claim 1, characterized in that: There are two first drain ports, which are respectively arranged on both sides of the outer housing.
6. The waterproof power lock for electric vehicle according to claim 3, characterized in that: Connection steps are spacedly provided on the outer circumference of the turntable, and connection ports for connecting and cooperating with the above - mentioned connection steps are provided on the outer housing.