Automobile key convenient to disassemble and assemble
The clamping limit and positioning structure solves the problem of inconvenient disassembly and assembly of traditional car keys, achieves a stable connection between the keypad and the circuit board, simplifies the disassembly and assembly process, and saves cost and time.
Patent Information
- Application Number
- CN202422638123.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-30
- Publication Date
- 2025-10-03
- Estimated Expiration
- 2034-10-30
AI Technical Summary
Traditional car keys are difficult to disassemble and assemble due to the complex connections between their components. In particular, tools are required when replacing the battery, which increases maintenance time and costs.
The card-connected limit structure and positioning structure are adopted, and the base is connected through the clamping structure on the back cover to achieve a stable connection between the keypad and the circuit board. No screws are required to fix it, simplifying the disassembly and assembly process.
It achieves a stable connection between the keypad and the circuit board, is easy to assemble and disassemble, saves material and time costs, simplifies the production process, and improves maintenance efficiency.
Smart Images
Figure CN223410610U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of automobile accessories, in particular to an automobile key which is easy to assemble and disassemble. Background Art
[0002] The main functions of a car key include unlocking the car door, starting the engine, and other auxiliary functions. With the development of technology, the functions of car keys are becoming more and more diverse. In addition to the basic mechanical key functions, they also include remote start, keyless entry (PKE), smart control and other functions.
[0003] Traditional car keys are usually composed of multiple parts such as a base, a keypad, a circuit board, and a back cover. The connection relationship between these parts is complex, which makes the production and assembly process cumbersome. In order to ensure a stable connection between the keypad and the circuit board and the base, car keys in the prior art are often fixed by means of screw connections and other methods. Although this design can ensure the stability of the connection between the keypad and the circuit board, it also brings the problem of inconvenience in disassembly and assembly. In particular, when the battery needs to be replaced, users often need to use tools to complete the disassembly and installation of the base and the back cover, which brings inconvenience to use. Since the internal connection structure of the car key is complex and inconvenient to disassemble and assemble, when it is necessary to maintain or inspect the internal circuit board, keypad or other components, the complicated disassembly and assembly process will increase maintenance time and cost. The large number of parts and complex assembly process not only increases production costs, but also affects production efficiency.
[0004] In view of the problems existing in the above-mentioned prior art, it is necessary to provide a car key with an easily detachable base and back cover, a simple connection structure between the circuit board and the key board, and easy disassembly and assembly of the circuit board, the key board and the base. Utility Model Content
[0005] The utility model overcomes the shortcomings of the above-mentioned technology and provides a car key which is easy to assemble and disassemble.
[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0007] A car key that is easy to disassemble and assemble comprises a base and a back cover that is clamped to the base by a clamping limit structure, a first accommodating cavity being formed on the inner side of the base, a keypad and a circuit board being detachably installed in the first accommodating cavity from the bottom of the cavity upward, a button battery that can be detachably connected to the circuit board and can be assembled and disassembled as a modular whole with the circuit board being arranged toward the back cover, a second accommodating cavity for accommodating the button battery being formed on the inner side of the back cover, a positioning structure for simultaneously connecting and fixing the keypad and the circuit board being provided on the base, a first pressing structure that abuts against the circuit board being provided on the back cover, a second pressing structure being provided on the side of the keypad that faces the circuit board, and a retractable key blade being rotatably connected to the base.
[0008] Furthermore, the snap-on limiting structure includes a first U-shaped frame formed in the first accommodating cavity and arranged on the base along the outer periphery of the first accommodating cavity, and a second U-shaped frame correspondingly arranged on the inner side wall of the back cover for abutting against the first U-shaped frame.
[0009] Furthermore, the clamping and limiting structure also includes a first clamping buckle symmetrically arranged on the outer side wall of the second U-shaped frame, and a first clamping groove symmetrically arranged on the outer side wall of the first U-shaped frame for the corresponding first clamping buckle to be clamped into.
[0010] Furthermore, the positioning structure includes a positioning column arranged in the first accommodating cavity, and two positioning columns are distributed in the upper and lower parts. The upper and lower ends of the key panel are respectively provided with first positioning holes for the corresponding insertion of the positioning columns, and the upper and lower ends of the circuit board are respectively provided with second positioning holes for the corresponding insertion of the positioning columns, and the first positioning hole is aligned with the second positioning hole.
[0011] Furthermore, the first clamping structure includes a first support column and a second support column extending vertically along the inner side wall of the back cover toward the circuit board and abutting against the circuit board. Four first support columns are distributed around the inner side wall of the back cover, and the second support column is arranged between the two first support columns at the upper end.
[0012] Furthermore, the second clamping structure includes a third support column extending vertically along the key panel toward the side of the circuit board and abutting against the circuit board. There are several third support columns evenly distributed on the key panel, and the key panel is also evenly distributed on the side facing the bottom of the first accommodating cavity.
[0013] Furthermore, the base is provided with a push-button rotating part, which includes a button exposed on the outer surface of the base. The key blade is connected to the push-button rotating part and rotates with the push-button rotating part. A key slot for accommodating the key blade is formed on the side walls on the same side of the base and the back cover. When the key blade is fully received in the key slot, the side surface of the key blade is lower than the side walls of the base and the back cover.
[0014] Furthermore, the circuit board is provided with at least four buttons on the side facing the keypad, wherein two of the buttons are longitudinally symmetrically arranged at the upper end of the circuit board, and the other two buttons are transversely symmetrically arranged at the lower end of the circuit board and facing the symmetry axis of the two buttons at the upper end. The base is provided with a detachable button cover exposed on the outer surface of the base, and the button cover corresponds one-to-one to the button setting, and an indicator mark is printed on the button cover.
[0015] Furthermore, the circuit board is provided with a lamp bead located between the two upper buttons, the button board is provided with a lamp bead cover for the lamp bead to transmit light, a through hole is opened on the base, and the lamp bead cover passes through the through hole and is exposed on the base.
[0016] Furthermore, it also includes a metal buckle that is clamped to the base and the lower end of the back cover, and the metal buckle is provided with a hanging hole.
[0017] Compared with the prior art, the beneficial effects of the present invention are:
[0018] Compared to traditional car keys, this design reduces the number of components. The positioning structure ensures precise positioning of the keypad and circuit board during installation, preventing them from shifting during installation. It also eliminates the need for screws or other fastening methods, making assembly and disassembly easy and cost-effective. A first clamping structure on the rear cover directly clamps the circuit board and keypad into the first accommodating cavity, ensuring their stability. Screws or other methods are not required to further secure them, making assembly and disassembly easy and saving material and time costs. Users can simply open the rear cover to replace the button battery, making assembly and disassembly convenient and quick, thus reducing assembly and production costs. The second clamping structure, in conjunction with the first clamping structure on the rear cover, further enhances the stability of the circuit board after installation, ensuring it does not shift during normal use. The modular, integrated assembly and disassembly of the button battery and circuit board not only simplifies the assembly process but also facilitates subsequent maintenance and replacement. This design of a car key offers a small number of components, a simple connection structure, and easy assembly and disassembly, significantly reducing production and transportation costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 This is an exploded diagram of the overall structure of the car key in this case.
[0020] Figure 2 This is a schematic diagram of the base structure of this case.
[0021] Figure 3 This is a schematic diagram of the back cover structure of this case.
[0022] Figure 4 This is one of the schematic diagrams of the keypad structure in this case.
[0023] Figure 5 This is the second schematic diagram of the keypad structure in this case.
[0024] Figure 6 This is a schematic diagram of the circuit board structure in this case.
[0025] Figure 7 It is a three-dimensional diagram of the overall structure of the car key in this case. DETAILED DESCRIPTION
[0026] The following examples further illustrate the features of the present invention and other related features to facilitate understanding by those skilled in the art:
[0027] like Figures 1 to 7 As shown, this invention provides a car key that is easy to assemble and disassemble. The key comprises a base 1 and a back cover 2 that is secured to the base 1 via a snap-fit retaining structure. The snap-fit retaining structure ensures a secure and easy connection between the back cover 2 and the base 1, simplifying the assembly and disassembly process and saving materials compared to conventional screw connections. A first accommodating cavity 100 is formed on the inside of the base 1, facilitating accurate installation and accommodating other components. A keypad 3 and a circuit board 4 are removably mounted in this first accommodating cavity 100, sequentially from the bottom upward. A button battery 5 is removably attached to the circuit board 4, forming a modular, integrated, and removable unit. This modular design of the integrated circuit board 4 and button battery 5 facilitates installation and replacement of the circuit board 4 and the button battery 5. The button battery 5 faces the back cover 2, and a second accommodating cavity 200 is formed on the inside of the back cover 2 to accommodate the button battery 5. The second accommodating cavity 200 is used to accommodate the button battery 5, ensuring that the button battery 5 is installed in a reasonable position, which is conducive to further saving internal space. The base 1 is provided with a positioning structure for simultaneously connecting and fixing the keypad 3 and the circuit board 4, which facilitates the rapid positioning and installation of the keypad 3 and the circuit board 4, and can ensure the stability of the keypad 3 and the circuit board 4 after installation, thereby preventing the keypad 3 and the circuit board 4 from loosening or displacement during use. The back cover 2 is provided with a first clamping structure that abuts against the circuit board 4. Through the first clamping structure provided on the back cover 2 and the clamping limit structure, the circuit board 4 and the keypad 3 can be clamped and set in the first accommodating cavity 100 by clamping the back cover 2 with the base 1. The connection structure is simple and stable, and there is no need for screw fixing or other methods, which saves materials and simplifies the disassembly and assembly process. The first clamping structure ensures the stability of the circuit board 4 and the keypad 3 after installation, preventing loosening or displacement caused by external impact. A second clamping structure is provided on the side of the keypad 3 facing the circuit board 4. This second clamping structure cooperates with the first clamping structure on the rear cover 2 to further stabilize the circuit board 4. A retractable key blade 6 is pivotally connected to the base 1, providing a mechanical key unlocking function. This pivoting connection facilitates storage and saves overall space.
[0028] Furthermore, if Figure 1-Figure 3As shown, the snap-fit and position-limiting structure includes a first U-shaped frame 11 formed in the first accommodating cavity 100 and disposed on the base 1 along the periphery of the first accommodating cavity 100, and a second U-shaped frame 21 correspondingly disposed on the inner sidewall of the rear cover 2 for abutting against the first U-shaped frame 11. The first U-shaped frame 11 and the second U-shaped frame 21 cooperate to achieve rapid positioning and snap-fitting of the rear cover 2 and the base 1. Furthermore, the space formed between the first U-shaped frame 11 and the second U-shaped frame 21 effectively limits the position of the circuit board 4 and the keypad 3, providing space for installation.
[0029] Specifically, continue as Figure 1-Figure 3 As shown, the snap-on limiting structure also includes a first snap 22 symmetrically arranged on the outer wall of the second U-shaped frame 21, and a first slot 12 symmetrically arranged on the outer wall of the first U-shaped frame 11 for the corresponding first snap 22 to snap into. In specific implementation, the first snap 22 and the second snap 22 are snaps made of plastic or other materials with a certain degree of elasticity to facilitate disassembly and assembly. The cooperation between the first snap 22 and the first slot 12 further ensures a stable connection between the back cover 2 and the base 1, preventing the back cover 2 from accidentally falling off during use, and can effectively press the internal keypad 3 and circuit board 4. Compared with screw connection, this snap-on connection method is more convenient for disassembly and assembly, saves materials, and is convenient for one-piece molding and manufacturing.
[0030] like Figure 1 、 Figure 2 、 Figure 4-Figure 6 As shown, the positioning structure includes positioning posts 13 disposed in the first accommodating cavity 100. Two positioning posts 13 are provided, one above the other. The keypad 3 has first positioning holes 31 at its upper and lower ends for the corresponding insertion of the positioning posts 13, and the circuit board 4 has second positioning holes 41 at its upper and lower ends for the corresponding insertion of the positioning posts 13. The first positioning holes 31 and the second positioning holes 41 are aligned. The positioning posts 13 cooperate with the first and second positioning holes 31, 41 on the keypad 3 and circuit board 4 to achieve precise positioning of the keypad 3 and circuit board 4 when they are installed on the base 1, while also effectively ensuring that the keypad 3 and circuit board 4 remain firmly in place after installation.
[0031] Specifically, if Figure 1As shown in Figure 3, the first compression structure includes first support columns 23 and second support columns 24, which extend vertically along the inner sidewall of the back cover 2 toward the circuit board 4 and abut against the circuit board 4. Four first support columns 23 are distributed along the inner sidewall of the back cover 2. The back cover 2 uses the first support columns 23, evenly distributed around its inner sidewall, to evenly support and press the circuit board 4, thereby compressing the circuit board 4 and thus the keypad 3. This uniform distribution effectively supports the circuit board 4 and prevents damage to the circuit board caused by the pressure of the back cover 2. The second support column 24 is located between the two upper first support columns 23, helping to position and press the lamp beads 43 at this position on the circuit board 4, thereby positioning and stabilizing the lamp bead sleeve 34 and further compressing the circuit board 4 and the keypad.
[0032] like Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 As shown, the second clamping structure includes a third support column 32 extending vertically along the side of the keypad 3 facing the circuit board 4 and abutting against the circuit board 4. Several third support columns 32 are evenly distributed on the keypad 3. The provision of the third support columns 32 ensures that the keypad 3 maintains good contact with the circuit board 4 after installation, improving the stability of the keypad 3 and preventing it from loosening or falling off during use. It also effectively supports the circuit board 4 and prevents it from moving. Several support protrusions 33 are also evenly distributed on the side of the keypad 3 facing the bottom of the first accommodating cavity 100. The design of the support protrusions 33 ensures an appropriate gap between the keypad 3 and the base 1, reducing direct friction between the two and providing the user with a better tactile feel for the keys 42. Furthermore, the support protrusions 33 cooperate with the third support columns 32. When the back cover 2 and the base 1 are fully engaged, the cooperation between the two structures further effectively clamps and secures the keypad 3 and the circuit board 4.
[0033] like Figure 1 、 Figure 2 、 Figure 7As shown, the base 1 is equipped with a push-button 7, which includes a button 71 exposed on the outer surface of the base 1. The key blade 6 is connected to the push-button 7 and rotates with it. The user simply presses the button 71 to rotate the push-button 7, thereby extending the key blade 6. This rotation arrangement makes the extension and retraction of the key blade 6 smooth and convenient. A key slot 300 for accommodating the key blade 6 is formed on the sidewalls of the base 1 and the rear cover 2. When the key blade 6 is fully accommodated in the key slot 300, the side surface of the key blade 6 is lower than the sidewalls of the base 1 and the rear cover 2. The key slot 300 is designed to accommodate the key blade 6 when not in use, ensuring that it does not protrude from the sidewalls of the base 1 and the rear cover 2. This makes the case easier to carry and transport while effectively preventing wear on the key blade 6.
[0034] like Figure 1 、 Figure 2 、 Figure 7 As shown, the circuit board 4 has at least four buttons 42 on the side facing the keypad 3. Two buttons 42 are longitudinally symmetrically arranged at the top of the circuit board 4, and the other two buttons 42 are transversely symmetrically arranged at the bottom of the circuit board 4, aligned with the axis of symmetry between the two top buttons 42. The buttons 42 perform various functions, such as unlocking, locking, and finding the car. This symmetrical design ensures a balanced layout of the buttons 42, creating an aesthetically pleasing look and making them easier for the user to remember and operate. While current car keys typically have three buttons 42, this design provides users with more functional options. Of course, three, five, or any other number of buttons 42 can also be configured as needed, and the number shown in this design is not limiting. A detachable button cover 8 is provided on the base 1, exposed on its outer surface. The button cover 8 protects the buttons 42 from wear and contamination during daily use. The detachable design of the button cover 8 allows users to exchange buttons 42 for different colors or styles, adding a personalized touch. The key covers 8 are arranged one-to-one with the keys 42, and are printed with indicators 81. The indicators 81 can help users identify the functions of each key and facilitate operation. In specific implementations, they are made by laser screen printing, and users can choose to print different patterns according to their needs.
[0035] like Figure 1-Figure 7As shown, the circuit board 4 is provided with a lamp bead 43 located between the two upper buttons 42. The lamp bead 43 can intuitively display the operating status of the car key, making it easy for the user to understand the current status and providing excellent practicality. The keypad 3 is provided with a lamp bead cover 34 for the lamp bead 43 to transmit light. The base 1 has a through hole 14, and the lamp bead cover 34 passes through the through hole 14 and is exposed on the base 1. The design of the lamp bead cover 34 ensures that the light emitted by the lamp bead 43 can effectively pass through the keypad 3. By having the lamp bead cover 34 pass through the base 1, the indication effect is improved, allowing the user to directly observe the operating status of the car key from the outside.
[0036] like Figure 1 、 Figure 2 、 Figure 7 As shown, the key also includes a metal hook 9 that snaps onto the lower ends of the base 1 and rear cover 2. The hook 9 is provided with a hanging hole 91. The presence of the metal hook 9 adds weight to the key, making it more tactile and aesthetically pleasing. By attaching the metal hook 9 to the lower ends of the base 1 and rear cover 2, it enhances the key's robustness. The hanging hole 91 allows the key to be conveniently carried by a user, such as with a lanyard, enhancing portability.
[0037] As mentioned above, this case protects a car key that is easy to disassemble and assemble. All technical solutions that are the same or similar to this case should be considered to fall within the scope of protection of this case.
Claims
1. A car key that is easy to assemble and disassemble, characterized by: The invention comprises a base (1) and a back cover (2) which is clamped to the base (1) through a clamping limit structure, wherein a first accommodating cavity (100) is formed on the inner side of the base (1), a key plate (3) and a circuit board (4) are detachably installed in the first accommodating cavity (100) from the bottom of the cavity upward, a button battery (5) which can be detachably connected to the circuit board (4) and can be assembled and disassembled in a modularized integrated manner with the circuit board (4), the button battery (5) is arranged toward the back cover (2), and a second accommodating cavity (200) for accommodating the button battery (5) is formed on the inner side of the back cover (2), a positioning structure for simultaneously connecting and fixing the key plate (3) and the circuit board (4) is provided on the base (1), a first pressing structure which abuts against the circuit board (4) is provided on the back cover (2), and a second pressing structure is provided on the side of the key plate (3) facing the circuit board (4), and a key blade (6) which can be rotatably connected to the base (1) is accumulable.
2. The car key that is easy to assemble and disassemble according to claim 1, characterized in that: The clamping and limiting structure comprises a first U-shaped frame (11) formed in the first accommodating cavity (100) and arranged on the base (1) along the outer periphery of the first accommodating cavity (100), and a second U-shaped frame (21) correspondingly arranged on the inner side wall of the back cover (2) and used to abut against the first U-shaped frame (11).
3. The easy-to-assemble and disassemble automobile key according to claim 1, characterized in that: The clamping and limiting structure further comprises a first clamp (22) symmetrically arranged on the outer side wall of the second U-shaped frame (21), and a first clamping groove (12) symmetrically arranged on the outer side wall of the first U-shaped frame (11) for the corresponding first clamp (22) to be clamped into.
4. The easy-to-assemble and disassemble automobile key according to claim 1, characterized in that: The positioning structure comprises a positioning column (13) arranged in the first accommodating cavity (100), wherein two positioning columns (13) are arranged in an upper and lower distribution, and first positioning holes (31) for corresponding insertion of the positioning columns (13) are respectively provided at the upper and lower ends of the key board (3), and second positioning holes (41) for corresponding insertion of the positioning columns (13) are respectively provided at the upper and lower ends of the circuit board (4), and the first positioning hole (31) and the second positioning hole (41) are aligned in position.
5. The easy-to-assemble and disassemble automobile key according to claim 1, characterized in that: The first pressing structure comprises a first support column (23) and a second support column (24) extending vertically along the inner side wall of the rear cover (2) toward the circuit board (4) and abutting against the circuit board (4), four first support columns (23) are distributed around the inner side wall of the rear cover (2), and the second support column (24) is arranged between the two first support columns (23) at the upper end.
6. The easy-to-assemble and disassemble automobile key according to claim 1, characterized in that: The second pressing structure comprises a third support column (32) extending vertically along the key plate (3) toward one side of the circuit board (4) and abutting against the circuit board (4); a plurality of the third support columns (32) are evenly distributed on the key plate (3); and a plurality of support protrusions (33) are evenly distributed on the side of the key plate (3) toward the bottom of the first accommodating cavity (100).
7. The easy-to-assemble and disassemble automobile key according to claim 1, characterized in that: The base (1) is provided with a push-rotating member (7), the push-rotating member (7) including a button (71) exposed on the outer surface of the base (1), the key blade (6) is connected to the push-rotating member (7) and rotates with the push-rotating member (7), and a key slot (300) for accommodating the key blade (6) is formed on the side walls on the same side of the base (1) and the back cover (2), and when the key blade (6) is completely received in the key slot (300), the side surface of the key blade (6) is lower than the side walls of the base (1) and the back cover (2).
8. The easy-to-assemble and disassemble automobile key according to any one of claims 1 to 7, characterized in that: The circuit board (4) is provided with at least four keys (42) on a side facing the key board (3), wherein two of the keys (42) are longitudinally symmetrically arranged at the upper end of the circuit board (4), and the other two keys (42) are transversely symmetrically arranged at the lower end of the circuit board (4) and directly opposite the symmetry axis of the two keys (42) at the upper end. The base (1) is provided with a detachable key cover (8) exposed on the outer surface of the base (1), and the key cover (8) is arranged one-to-one corresponding to the keys (42). The key cover (8) is printed with an indicator mark (81).
9. The easy-to-assemble and disassemble automobile key according to claim 8, characterized in that: The circuit board (4) is provided with a lamp bead (43) located between the two buttons (42) at the upper end; the button board (3) is provided with a lamp bead sleeve (34) for allowing the lamp bead (43) to transmit light; a through hole (14) is provided on the base (1); the lamp bead sleeve (34) passes through the through hole (14) and is exposed on the base (1).
10. The easy-to-assemble and disassemble automobile key according to claim 9, characterized in that: It also includes a metal hanging buckle (9) that is clamped to the base (1) and the lower end of the back cover (2), and the metal hanging buckle (9) is provided with a hanging hole (91).