Connector with flip cover and stable structure
By designing a structurally stable connector with a flip cover, and employing elastic snap-fit and slot engagement with integrated injection molding technology, the shortcomings of existing high-voltage connectors in the field of new energy vehicles in terms of safety, reliability, and economy have been solved, achieving efficient electrical connection and convenient maintenance.
Patent Information
- Application Number
- CN202422273238.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-12-02
- Estimated Expiration
- 2034-09-18
AI Technical Summary
Existing high-voltage connectors suffer from insufficient safety, reliability, and economy in the field of new energy vehicles, especially due to inadequate protective measures, increased costs and maintenance difficulties caused by complex flip-top structures, and inability to meet the needs of single-pin and multi-pin scenarios.
A structurally stable connector with a flip cover was designed, employing a simple elastic snap-fit and slot engagement, combined with integrated injection molding technology. The connector includes components such as a housing, flip cover, connecting ear, bushing, positioning post, and sealing ring, ensuring the stability and versatility of the flip cover, simplifying the manufacturing process, and improving the connector's versatility and reliability.
It improves the safety of the vehicle's electrical system, reduces production costs, enhances the versatility and stability of connectors, reduces maintenance time, ensures the accuracy and reliability of electrical connections, and is suitable for single-pin and multi-pin wiring scenarios.
Smart Images

Figure CN223625288U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of connector technology, and more specifically, to a structurally stable connector with a flip cover. Background Technology
[0002] In the field of new energy vehicles, the efficient and stable operation of key components such as high-voltage distribution boxes, on-board chargers, motor controllers, motors, all-in-one electronic control systems, and DC-DC converters relies heavily on high-quality connectors as the bridge for electrical connections. However, the connector technology currently used in these systems still has some shortcomings.
[0003] First, some connectors lack necessary protective measures in their design, especially after installing conductive components such as copper busbars, they fail to provide effective anti-touch protective covers, which not only increases the risk of electric shock to operators, but may also cause short circuits or system failures due to accidental contact, posing a threat to the safety of the entire vehicle.
[0004] Secondly, some connectors use complex flip-top structures to achieve protective functions, but this design not only increases manufacturing costs, but may also lead to inconvenience in maintenance and decreased reliability. Moreover, complex structures often mean more points of failure and higher maintenance costs.
[0005] Finally, existing connector technology has limitations in adaptability, failing to meet the needs of both single-pin and multi-pin scenarios simultaneously. With the rapid development of new energy vehicle technology, the demands for connectors from different components are becoming increasingly diverse, making it difficult for a single connector design to meet the needs of all scenarios.
[0006] In conclusion, existing high-voltage connectors still need continuous optimization and improvement to overcome the shortcomings of existing technologies and enhance their safety, reliability, and economy. Summary of the Invention
[0007] To address or mitigate the issues of low safety, reliability, and economy in existing high-voltage connectors, this invention provides a structurally stable connector with a flip cover.
[0008] The technical solution of this utility model is as follows:
[0009] A structurally stable connector with a flip cover includes a housing and a flip cover rotatably connected to the housing. The flip cover has elastic buckles on both sides, and the housing has slots on both sides that engage with the elastic buckles.
[0010] Furthermore, the housing is provided with connecting ears on both sides, and connecting holes are provided on the connecting ears, with bushings provided in the connecting holes.
[0011] Furthermore, a first limiting groove is provided in the connecting hole, and a first limiting ring is provided on the outside of the bushing to engage with the first limiting groove.
[0012] Furthermore, the connecting surface of the connecting ear is provided with positioning posts, which are arranged asymmetrically on the connecting surface.
[0013] Furthermore, the connecting surface of the connecting ear is provided with a mounting groove, and a sealing ring is provided in the mounting groove.
[0014] Furthermore, a protruding clamping part is provided on the wall surface of the mounting groove, and the clamping part abuts against the sealing ring.
[0015] Furthermore, the housing is provided with a mounting hole, a connecting terminal is provided in the mounting hole, a first limiting part is provided on the wall of the mounting hole, and a second limiting part is provided on the wall of the connecting terminal, the second limiting part engaging with the first limiting part.
[0016] Furthermore, the first limiting part includes a second limiting ring, a limiting post, and a limiting plate. The second limiting part includes a second limiting groove, a limiting hole, and a limiting surface that respectively engage with the second limiting ring, the limiting post, and the limiting plate.
[0017] Furthermore, a connecting shaft is provided on the housing, the connecting shaft has an oblong cross-section, a connecting buckle is provided on the flip cover, and a notch is provided between the end of the connecting buckle and the flip cover, the width of the notch being approximately equal to the width of the connecting shaft.
[0018] Furthermore, the elastic buckle includes a connecting part, and the connecting part has an engaging part on the side facing the slot, and both sides of the engaging part are provided with sliding slopes.
[0019] According to the above-described solution, the beneficial effects of this utility model are that the flip cover prevents accidental electric shock in non-operational states, improving the safety of the vehicle's electrical system. Compared to complex flip cover structures, this design uses a simple elastic buckle and slot combination, simplifying the manufacturing process and reducing production costs. An opening is provided on one side between the flip cover and the housing, allowing for wiring and enabling the connector to be flexibly applied to various wiring scenarios, including single-pin and multi-pin connections, thus improving the product's versatility. The quick and convenient flip cover opening and closing process reduces maintenance personnel's working time and improves maintenance efficiency. In addition, buckles are provided on both sides to improve structural stability and ensure the stability of the connection between the flip cover and the housing. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a three-dimensional structural diagram of the front of the flip cover in the closed state in this utility model;
[0022] Figure 2 This is a three-dimensional structural diagram of the back of the flip cover in the closed state in this utility model;
[0023] Figure 3 This is a three-dimensional structural diagram of the front view of the flip cover in the open state of this utility model.
[0024] Figure 4 This is an exploded view of the front structure of this utility model;
[0025] Figure 5 This is an exploded view of the bottom structure of this utility model;
[0026] Figure 6 This is a front structural diagram of the present invention;
[0027] Figure 7 for Figure 6 Enlarged schematic diagram of the structure at point A in the middle;
[0028] Figure 8 for Figure 7 A schematic diagram of the structure exploded.
[0029] In the figure, the reference numerals are as follows: 1. Housing; 101. Slot; 102. Connecting ear; 103. Connecting hole; 104. First limiting groove; 105. Positioning post; 106. Mounting groove; 107. Clamping part; 108. Mounting hole; 109. First limiting part; 110. Second limiting ring; 111. Limiting post; 112. Limiting plate; 113. Connecting shaft; 2. Flip cover; 201. Elastic buckle; 202. Connecting part; 203. Engaging part; 204. Sliding slope; 205. Connecting buckle; 206. Notch; 3. Bushing; 301. First limiting ring; 4. Sealing ring; 5. Connecting terminal; 501. Second limiting part; 502. Second limiting groove; 503. Limiting hole; 504. Limiting surface. Detailed Implementation
[0030] To make the technical problem to be solved, the technical solution, and the beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model.
[0031] It should be noted that when a component is referred to as "fixed," "set," or "connected" to another component, it may be located directly or indirectly on that other component. The terms "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or position based on the accompanying drawings, and are for ease of description only, and should not be construed as limiting the technical solution. The terms "first," "second," etc., are used for ease of description only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "Many" means two or more, unless otherwise explicitly specified. "Several" means one or more, unless otherwise explicitly specified.
[0032] like Figures 1 to 3 As shown in one embodiment of the present invention, a structurally stable connector with a flip cover includes a housing 1 and a flip cover 2 rotatably connected to the housing 1. The flip cover 2 is provided with elastic buckles 201 on both sides, and the housing 1 is provided with slots 101 on both sides that engage with the elastic buckles 201.
[0033] In the initial state, the connector is unconnected. The flip cover 2 is tightly engaged with the slot 101 on the housing 1 by the elastic buckles 201 on both sides, keeping it closed and effectively preventing electric shock and dust from entering.
[0034] When wiring is required, the operator can manually flip the cover 2 to deform the elastic clip 201 and disengage it from the slot 101. At this time, the cover 2 can be opened to expose the wiring port. After the cover 2 is fully opened, the operator can perform single-pin or multi-pin wiring operations through the wiring port.
[0035] After the wiring is completed, the operator gently pushes the flip cover 2 back to its original position. The elastic buckle 201 automatically resets and engages with the slot 101 again, limiting the flip cover 2 and ensuring the stability of the flip cover 2 in the closed state.
[0036] In this embodiment, the flip cover 2 prevents accidental electric shock during non-operational states, improving the safety of the vehicle's electrical system. Compared to the complex structure of the flip cover 2, this design uses a simple elastic buckle 201 that engages with the slot 101, simplifying the manufacturing process and reducing production costs. An opening is provided on one side between the flip cover 2 and the housing 1, allowing for wiring and enabling the connector to be flexibly applied to various wiring scenarios, including single-pin and multi-pin connections, thus improving the product's versatility. The quick and convenient opening and closing process of the flip cover 2 reduces the working time of maintenance personnel and improves maintenance efficiency. In addition, buckles are provided on both sides to improve the stability of the structure and ensure the stability of the connection between the flip cover 2 and the housing 1.
[0037] like Figure 3 and Figure 4 As shown, in a preferred embodiment, the housing 1 is provided with connecting ears 102 on both sides, the connecting ears 102 are provided with connecting holes 103, and the connecting holes 103 are provided with bushings 3.
[0038] A first limiting groove 104 is provided in the connecting hole 103, and a first limiting ring 301 that engages with the first limiting groove 104 is provided on the outside of the bushing 3.
[0039] The housing 1, connecting ear 102 and bushing 3 are integrally injection molded.
[0040] In this embodiment, the connecting ear 102 enables the connector to be quickly and accurately positioned in the predetermined location during installation and easily fixed with fasteners such as bolts and screws, facilitating secure installation into relevant equipment or systems. The bushing 3 provides additional support, and its tight engagement with the first limiting ring 301 and the first limiting groove 104 further enhances the stability and reliability of the connection, preventing loosening or detachment due to vibration or external forces.
[0041] The bushing 3 is made of wear-resistant and corrosion-resistant materials, such as metal or high-strength plastic, which can significantly improve the wear resistance of the connection hole 103 area and reduce wear caused by frequent insertion and removal or long-term use.
[0042] By employing integrated injection molding technology, the housing 1, connecting lug 102, and bushing 3 are integrated into a single component. This not only simplifies the production process and reduces assembly costs but also improves the overall integrity and consistency of the product. Furthermore, integrated molding reduces gaps and potential loosening points between components, further enhancing the structural stability and reliability of the product.
[0043] like Figure 3 and Figure 5 As shown, in a preferred embodiment, the connecting surface of the connecting ear 102 is provided with a positioning post 105, and the positioning post 105 is arranged asymmetrically on the connecting surface.
[0044] In this embodiment, because the position and number of the positioning posts 105 are asymmetrical on the connection surface, the connector can only successfully mate with the corresponding device when it is in the correct direction and position. This avoids incorrect connections caused by human negligence or misoperation, ensuring the accuracy and safety of the electrical connection. Simultaneously, the positioning posts 105 not only serve as a foolproof mechanism but also enhance the connection strength between the connector and the interface or device to a certain extent. When the connector is correctly installed, the positioning posts 105 fit tightly with the corresponding structure on the interface, providing additional support and improving stability. Furthermore, the positioning posts 105 simplify the installation process, enabling operators to quickly and accurately locate the correct installation position of the connector, achieving rapid connection and improving installation efficiency.
[0045] like Figures 4 to 8 As shown, in a preferred embodiment, the connecting surface of the connecting ear 102 is provided with a mounting groove 106, and a sealing ring 4 is provided in the mounting groove 106.
[0046] A protruding clamping part 107 is provided on the wall of the mounting groove 106, and the clamping part 107 abuts against the sealing ring 4.
[0047] The sealing ring 4 is made of elastic materials such as rubber or silicone, which can fit tightly around the connection surface, effectively preventing water, dust, and other impurities from entering the connector, thereby protecting the stability and safety of the electrical connection. It is suitable for electrical connection scenarios requiring high sealing, such as new energy vehicles. The mounting groove 106 simplifies the installation process, making it easier for operators to install the sealing ring 4 in the correct position. Simultaneously, the clamping part 107 facilitates quick positioning and fixation of the sealing ring 4, improving installation efficiency and accuracy. The protruding clamping part 107 on the wall of the mounting groove 106 abuts against the sealing ring 4, clamping it to ensure that the sealing ring 4 will not shift or fall off during installation, enhancing the reliability and stability of the connection.
[0048] like Figure 4 , Figure 7 and Figure 8 As shown, in a preferred embodiment, the housing 1 is provided with a mounting hole 108, a connecting terminal 5 is provided in the mounting hole 108, a first limiting part 109 is provided on the wall of the mounting hole 108, and a second limiting part 501 is provided on the wall of the connecting terminal 5, the second limiting part 501 engaging with the first limiting part 109.
[0049] The first limiting part 109 includes a second limiting ring 110, a limiting post 111 and a limiting plate 112. The second limiting part 501 includes a second limiting groove 502, a limiting hole 503 and a limiting surface 504 that respectively engage with the second limiting ring 110, the limiting post 111 and the limiting plate 112.
[0050] The connecting terminal 5 and the housing 1 are integrally injection molded.
[0051] In this embodiment, the first limiting part 109 on the wall of the mounting hole 108 engages with the second limiting part 501 on the wall of the connecting terminal 5, so that the connecting terminal 5 is stably connected to the housing 1, preventing the connecting terminal 5 from loosening or falling off when subjected to external forces such as vibration and impact, and ensuring the reliability of the connection.
[0052] The multiple engagement of the second limiting ring 110 with the second limiting groove 502, the limiting post 111 with the limiting hole 503, and the limiting plate 112 with the limiting surface 504 provides all-round fixation and support for the connecting terminal 5, enhances the stability of the connecting terminal 5 within the housing 1, prevents potential risks such as poor electrical contact or short circuits caused by loosening, reduces the failure rate caused by poor connection, and improves the reliability and service life of the product.
[0053] The one-piece design eliminates the need for seams or additional connecting parts 202 between the connecting terminal 5 and the housing 1, enhancing the overall structural strength of the connector and making it more stable when subjected to external forces such as vibration and impact, thus preventing the risk of failure due to loose or broken components.
[0054] like Figure 2 , Figure 4 and Figure 7 As shown, in a preferred embodiment, the housing 1 is provided with a connecting shaft 113, the connecting shaft 113 has an oblong cross-section, the flip cover 2 is provided with a connecting buckle 205, and a notch 206 is provided between the end of the connecting buckle 205 and the flip cover 2, the width of the notch 206 being approximately equal to the width of the connecting shaft 113.
[0055] In use, the flip cover 2 rotates around the connecting shaft 113 via the connecting buckle 205, thereby rotating around the housing 1 to open or close. A notch 206 is provided on the connecting buckle 205 to facilitate its installation onto the connecting shaft 113. Aligning the notch 206 with the narrower side of the connecting shaft 113 (with the notch facing down), and since the width of the notch 206 is roughly the same as the width of the connecting shaft 113, a slight force is applied, allowing the connecting buckle 205 to fit onto the connecting shaft 113. When rotated to other positions, the width of the notch 206 is smaller than the size of the connecting shaft 113 to prevent it from falling off. In the closed position, the notch 206 of the connecting buckle 205 faces upwards to prevent the flip cover 2 from being pulled off. To disassemble, rotate the notch 206 downwards and then lift it upwards. The flip cover 2 is easy to disassemble, install, and replace. By setting the waist-shaped connecting shaft 113 and the connecting buckle 205 with a notch 206, the connection structure between the flip cover 2 and the housing 1 is simplified, the number and complexity of parts are reduced, and production costs and assembly difficulty are lowered.
[0056] like Figure 3As shown, in a preferred embodiment, the elastic buckle 201 includes a connecting portion 202, and a locking portion 203 is provided on the side of the connecting portion 202 facing the slot 101. Sliding inclined surfaces 204 are provided on both sides of the locking portion 203.
[0057] The elastic buckle 201 and the flip cover 2 are integrally injection molded.
[0058] The sliding ramps 204 on both sides of the engaging portion 203 allow it to slide more easily into the slot 101 during the engagement process, until it reaches the locked position, due to the guiding effect of the ramps. Similarly, when opening, by applying appropriate force, the engaging portion 203 can easily slide out of the slot 101 along the ramps, making the operation more effortless. In addition, the connecting portion 202 has no connection on both sides, allowing for a large deformation space, which enables adaptive deformation. When sliding on the housing 1, it prevents damage. When the engaging portion 203 falls into the slot 101, it elastically resets, keeping the engaging portion 203 and the slot 101 in the engaged state.
[0059] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A structurally stable connector with a flip cover, characterized in that, The device includes a housing and a flip cover rotatably connected to the housing. The flip cover has elastic buckles on both sides, and the housing has slots on both sides that engage with the elastic buckles. The housing is provided with a connecting shaft, the connecting shaft has an oblong cross-section, the flip cover is provided with a connecting buckle, and a notch is provided between the end of the connecting buckle and the flip cover, the width of the notch being approximately equal to the width of the connecting shaft.
2. The structurally stable connector with a flip cover according to claim 1, characterized in that, The housing has connecting ears on both sides, connecting holes on the connecting ears, and bushings in the connecting holes.
3. A structurally stable connector with a flip cover according to claim 2, characterized in that, A first limiting groove is provided in the connecting hole, and a first limiting ring is provided on the outside of the bushing to engage with the first limiting groove.
4. A structurally stable connector with a flip cover according to claim 2, characterized in that, The connecting surface of the connecting ear is provided with positioning posts, which are arranged asymmetrically on the connecting surface.
5. A structurally stable connector with a flip cover according to claim 2, characterized in that, The connecting surface of the connecting ear is provided with a mounting groove, and a sealing ring is provided in the mounting groove.
6. A structurally stable connector with a flip cover according to claim 5, characterized in that, The mounting groove wall is provided with a protruding clamping part, which abuts against the sealing ring.
7. A structurally stable connector with a flip cover according to claim 1, characterized in that, The housing is provided with a mounting hole, a connecting terminal is provided in the mounting hole, a first limiting part is provided on the wall of the mounting hole, and a second limiting part is provided on the wall of the connecting terminal, the second limiting part engaging with the first limiting part.
8. A structurally stable connector with a flip cover according to claim 7, characterized in that, The first limiting part includes a second limiting ring, a limiting post and a limiting plate. The second limiting part includes a second limiting groove, a limiting hole and a limiting surface that respectively engage with the second limiting ring, the limiting post and the limiting plate.
9. A structurally stable connector with a flip cover according to claim 1, characterized in that, The elastic buckle includes a connecting part, and the connecting part has an engaging part on the side facing the slot. Both sides of the engaging part are provided with sliding slopes.