A compact and small-sized automobile key

Abstract

The application relates to a compact and small automobile key, characterized by comprising a front cover, a rear cover connected with the front cover, and a hooking piece connected with the lower ends of the front cover and the rear cover, a first accommodating cavity is formed in the inner side of the front cover, a second accommodating cavity is formed in the outer side of the front cover, a flexible key plate is embedded in the first accommodating cavity, a third accommodating cavity is formed in the inner side of the flexible key plate, a circuit board assembly is installed in the third accommodating cavity, a key sleeve is connected in the second accommodating cavity, the key sleeve is embedded in the second accommodating cavity and the outer wall surface of the key sleeve is lower than the outer wall surface of the front cover, the rear cover is used for pressing the circuit board assembly into the third accommodating cavity through a supporting structure and the height of the circuit board assembly is lower than the third accommodating cavity, the circuit board assembly is used for pressing the flexible key plate into the first accommodating cavity and the height of the flexible key plate is flush with the first accommodating cavity, and a fourth accommodating cavity for accommodating the circuit board assembly is formed in the inner side of the rear cover. The four accommodating cavities are jointly installed and matched, the installation space is saved, and the overall volume of the automobile key is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of car key accessories, specifically to a compact and small-sized car key. Background Technology

[0002] With the rapid development of the automotive industry and the increasing demands of the consumer market for convenience and portability in automobiles, the design rationality and user experience of car keys, as an important component of automobiles, are receiving increasing attention. Car keys have gradually evolved from traditional mechanical keys to smart keys that integrate multiple functions such as remote control and identity recognition. They typically integrate multiple components such as circuit boards, button assemblies, and batteries. How to achieve multi-functional integration while ensuring the key's compact structure and small size has become an important research direction in the industry.

[0003] Currently, car keys on the market often have certain limitations in their structural design. To accommodate core components such as circuit boards and keypads, traditional car keys typically employ a relatively spacious internal layout, lacking tight fit and a reasonable storage structure between components, resulting in a large overall size. This larger size not only increases the amount of packaging material used, raising product packaging and transportation costs, but also causes inconvenience for users, such as taking up considerable space when placed in a pocket or key pouch, affecting comfort and convenience.

[0004] Therefore, overcoming the aforementioned shortcomings and providing a compact and small-sized car key has become an important issue that urgently needs to be addressed by those skilled in the art. Utility Model Content

[0005] This invention overcomes the shortcomings of the above-mentioned technologies and provides a car key with a compact structure and small size.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A compact and small-sized car key is characterized by comprising a front cover, a rear cover that snaps into the front cover, and hooks snapping into the lower ends of the front and rear covers. The front cover has a first accommodating cavity on its inner side and a second accommodating cavity on its outer side. A flexible button plate is embedded in the first accommodating cavity. A third accommodating cavity is formed inside the flexible button plate. A circuit board assembly is installed in the third accommodating cavity. A button sleeve is snapped into the second accommodating cavity, and its outer wall is lower than that of the front cover. The rear cover uses a support structure to press the circuit board assembly into the third accommodating cavity, and the height of the circuit board assembly is lower than that of the third accommodating cavity. The circuit board assembly presses the flexible button plate into the first accommodating cavity, and its height is flush with that of the first accommodating cavity. A fourth accommodating cavity is formed inside the rear cover to accommodate the circuit board assembly.

[0007] Furthermore, the hook component includes first locking blocks arranged symmetrically on the left and right sides, and the inner sides of the front cover and the rear cover are respectively provided with first locking slots for the first locking blocks to be engaged.

[0008] Furthermore, at least two second locking blocks are provided on the inner wall of the rear cover along the outer periphery of the fourth accommodating cavity, and at least two second locking slots for the second locking blocks to be engaged are provided on the inner wall of the front cover along the outer periphery of the first accommodating cavity.

[0009] Furthermore, a gap is formed between the front cover and the rear cover and the hook component to facilitate disassembly and assembly.

[0010] Furthermore, the circuit board assembly includes a circuit board and a button battery detachably connected to the circuit board, which can be modularly assembled and disassembled with the circuit board.

[0011] Furthermore, the support structure includes a plurality of first support columns evenly distributed on the inner side of the back cover. A portion of the first support columns press against the circuit board, and another portion of the first support columns pass through the circuit board and press against the third accommodating cavity of the flexible keypad. Corresponding connecting holes are provided on the circuit board for the first support columns to pass through.

[0012] Furthermore, the flexible keypad includes a second support column evenly disposed within the third accommodating cavity, and a positioning rod is also provided on the inner side of the front cover, with a corresponding positioning groove for the positioning rod to be inserted into the flexible keypad.

[0013] Furthermore, the circuit board includes at least four buttons arranged facing the flexible button panel, wherein two of the buttons are arranged longitudinally symmetrically at the upper end of the circuit board, and the other two buttons are arranged laterally symmetrically at the lower end of the circuit board and directly opposite the axis of symmetry of the two upper buttons. The inner side of the flexible button panel is provided with a protrusion for pressing the buttons.

[0014] Furthermore, the front cover includes a through hole penetrating the first accommodating cavity and the second accommodating cavity, the button sleeve includes button posts disposed on its inner side that pass through the through hole and press against the outer side of the protrusion, and the outer side of the button sleeve is printed with an indicator mark.

[0015] Furthermore, the inner side of the button sleeve is provided with several hooks, and the front cover also includes a card hole that penetrates the first accommodating cavity and the second accommodating cavity, and the hooks are engaged in the card hole.

[0016] Compared with the prior art, the beneficial effects of this utility model are: The front and rear covers of this design are connected via a snap-fit ​​mechanism, ensuring a simple and secure connection. The first accommodating cavity provides a stable installation space for the flexible keypad, guaranteeing stability during button operation. The second accommodating cavity, in conjunction with the keypad sleeve, securely mounts the sleeve, protecting the buttons and maintaining a smooth overall appearance. The installation of the circuit board assembly within the third accommodating cavity, along with the support structure pressing it into the rear cover, ensures a firm and non-protruding installation of the circuit board assembly. The fourth accommodating cavity further optimizes the internal space layout, allowing the circuit board components to be accommodated within it, resulting in a more rational and organized internal structure for the entire car key. This design, with its four accommodating cavities working together, saves installation space between components, maximizes space utilization, significantly reduces the overall size of the car key, lowers packaging and transportation costs, and makes it easier for users to carry. Furthermore, the reduced size helps save on material costs. Attached Figure Description

[0017] Figure 1 This is an exploded view of the car key in this case.

[0018] Figure 2 This is a structural schematic diagram of the hanging components in this case.

[0019] Figure 3 This is a structural diagram of the back cover in this case.

[0020] Figure 4 This is a structural diagram of the front cover of this case.

[0021] Figure 5 This is a structural schematic diagram of the flexible keypad in this case.

[0022] Figure 6 This is a structural diagram of the button sleeve on the car key in this case.

[0023] Figure 7 This is a 3D diagram of the car key used in this case. Detailed Implementation

[0024] The following examples provide a more detailed description of the features and other related characteristics of this utility model, to facilitate understanding by those skilled in the art: like Figures 1 to 7As shown, this invention provides a compact and small-sized car key, including a front cover 1, a rear cover 2 that snaps into the front cover 1, and a hook 3 that snaps into the lower ends of the front cover 1 and the rear cover 2. The snap-fit ​​connection between the front cover 1, the rear cover 2, and the hook 3 facilitates quick disassembly and assembly of the car key shell, saving time and costs, and also facilitating the repair and replacement of internal components of the car key. In specific implementation, both the front cover 1 and the rear cover 2 are streamlined in shape for easy gripping, while further saving space and materials. A first receiving cavity 11 is formed on the inner side of the front cover 1, and a second receiving cavity 12 is formed on the outer side. A flexible button plate 4 is embedded in the first receiving cavity 11, that is, the protruding side of the flexible button plate 4 is completely embedded in the first receiving cavity 11, thereby fitting snugly within the first receiving cavity 11 to save space. In specific implementation, the flexible button plate 4 is made of silicone material. A third receiving cavity 41 is formed inside the flexible keypad 4, and a circuit board assembly 5 is installed inside the third receiving cavity 41. In specific implementation, the flexible keypad 4 encloses the circuit board assembly 5 inside the third receiving cavity 41, which can both support and protect the circuit board assembly 5. A key sleeve 6 is snapped into the second receiving cavity 12. The key sleeve 6 is embedded in the second receiving cavity 12 and its outer wall surface is lower than the outer wall surface of the front cover 1. This structural design helps to save space and ensures the flatness of the appearance, providing a better grip and a more aesthetically pleasing design. The rear cover 2 uses a support structure to press the circuit board assembly 5 into the third receiving cavity 41, and the height of the circuit board assembly 5 is lower than the third receiving cavity 41. The circuit board assembly 5 presses the flexible keypad 4 into the first receiving cavity 11, and its height is flush with the first receiving cavity 11. In other words, the circuit board assembly 5 and the flexible button plate 4 are pressed towards the front cover by the support structure on the rear cover 2. The flexible button plate 4 is press-fitted with the front cover 1 and the rear cover 2. The installation is completed by the snap-fit ​​between the rear cover 2 and the front cover 1. When assembling the car key in this case, the button sleeve 6 is first inserted into the second accommodating cavity 12, then the flexible button plate 4 is pressed into the first accommodating cavity 12, then the circuit board assembly 5 is pressed into the third accommodating cavity 41, then the hook piece 3 is snapped into the bottom of the front cover 1, and finally the rear cover 2 is closed to complete the assembly. The car key in this case is simple and convenient to assemble and disassemble, and requires no tools. A fourth accommodating cavity 21 is formed on the inner side of the rear cover 2 to accommodate the circuit board assembly 5, so as to avoid the electronic components of the circuit board assembly 5 and maximize the space utilization.

[0025] Furthermore, referring to Figures 1-4 , Figure 7 As shown, the hook component 3 includes first locking blocks 31 arranged symmetrically on the left and right sides, and first locking slots 7 are correspondingly opened on the inner sides of the front cover 1 and the rear cover 2 for the first locking blocks 31 to be inserted into. In a specific implementation, the hook component 3 is provided with a hanging hole for the user to carry and hang keys.

[0026] The hanging component 3 achieves a stable connection with the front cover 1 and the rear cover 2 through the cooperation of the first locking block 31 and the first locking groove 7. This simple locking structure enhances the overall structural strength of the car key and also enables quick assembly and disassembly between the hook component 3 and the front cover 1 and the rear cover 2. In this case, preferably, two sets of the first locking blocks 31 are symmetrically arranged on the left and right, that is, four in total, to further improve the stability of the connection between the hook component 3 and the front cover 1 and the rear cover 2. The first locking groove 7 is also arranged in two sets accordingly, that is, two on the front cover 1 and two on the rear cover 2.

[0027] Continue to refer to Figures 1-4 , Figure 7 As shown, furthermore, at least two second locking blocks 22 are provided on the inner wall of the rear cover 2 along the outer periphery of the fourth accommodating cavity 21, and at least two second slots 13 are provided on the inner wall of the front cover 1 along the outer periphery of the first accommodating cavity 11 for the second locking blocks 22 to engage. In specific implementation, in order to achieve a stable connection between the rear cover 2 and the front cover 1 while facilitating their assembly and disassembly, four of each of the second locking blocks 22 and the second slots 13 are symmetrically arranged in pairs, that is, four of each of the second locking blocks 22 and the second slots 13 are respectively provided. The rear cover and the front cover are tightly connected through the cooperation of the second locking blocks 22 and the second slots 13, which not only ensures the stability of the connection, but also facilitates disassembly and assembly when needed. The four symmetrically arranged second locking blocks 22 and second slots 13 further enhance the balance and stability of the connection, effectively avoiding loosening or damage to the connection due to uneven force.

[0028] Reference Figure 7 As shown, a gap 8 is formed between the front cover 1 and the rear cover 2 and the hook 3 for easy disassembly and assembly. In actual use, the user does not need to use professional tools. They can simply insert their fingers or simple tools into the gap and gently apply force to separate the rear cover 2 and the front cover 1 from the hook 3. That is, the rear cover 2 and the front cover 1 can be quickly disassembled, which is convenient for battery replacement and maintenance of the car key.

[0029] Reference Figure 1 As shown, the circuit board assembly 5 includes a circuit board 51 and a button battery 52 detachably connected to the circuit board 51, forming a modular, integrated assembly. This modular, integrated connection between the circuit board 51 and the button battery 52 facilitates the assembly and disassembly of the circuit board assembly 5, meaning they form a single, integrated component, reducing the number of parts required for assembly and disassembly. The button battery 52 is electrically connected to the circuit board 51 via a conductive spring, and its detachable connection allows for easy replacement.

[0030] Specifically, refer to Figure 1 , Figure 3As shown, the support structure of this invention includes several first support columns 23 evenly distributed inside the rear cover 2. Some of the first support columns 23 press against the circuit board 51, while others pass through the circuit board 51 and press against the third accommodating cavity 41 of the flexible keypad 4. Corresponding connecting holes are provided on the circuit board 51 for the first support columns to pass through. In specific implementation, the first support columns 23 are evenly distributed inside the rear cover 2. Preferably, seven first support columns 23 are provided, four of which are evenly distributed in a square pattern, used to pass through the circuit board 51 and press against the third accommodating cavity 41 of the flexible keypad 4 to fix the circuit board 51. The other three first support columns 23 are distributed in a triangle pattern, used to press against the first support columns 23, making them better and tighter pressed into the third accommodating cavity 41 of the flexible keypad 4. This support structure ensures the stability of the circuit board assembly installation, prevents excessive compression and damage to the circuit board assembly, and makes the structure more compact. The evenly distributed first support column 23 ensures that the support force of the rear cover 2 on the circuit board assembly 5 is uniform, avoiding problems such as deformation and damage of the circuit board 51 caused by excessive local stress.

[0031] Reference Figure 1 , Figure 3-5 As shown, the flexible keypad 4 further includes second support columns 42 evenly distributed within the third accommodating cavity 41. The second support columns 42, in conjunction with the first support columns 23 on the rear cover 2, work together to compress the circuit board 51, thereby improving the stability of the circuit board 51 installation and ensuring the normal use of the car key. A positioning rod 16 is also provided inside the front cover 1, and a corresponding positioning groove 44 is provided on the flexible keypad 4 for the positioning rod 16 to be inserted. The cooperation between the positioning rod 16 and the positioning groove 44 further ensures the accurate positioning of the flexible keypad 4 during installation, avoids installation deviations, and enables rapid installation.

[0032] Furthermore, referring to Figure 1 , Figure 5As shown, the circuit board 51 includes at least four buttons 511 facing the flexible button plate 4. Two buttons 511 are symmetrically arranged longitudinally at the upper end of the circuit board 51, and the other two buttons 511 are symmetrically arranged laterally at the lower end of the circuit board 51, directly opposite the axis of symmetry of the two upper buttons 511. The inner side of the flexible button plate 4 has corresponding protrusions 43 for pressing against the buttons 511. In specific implementation, the wall surface of the circuit board 51 with the buttons 511 has a raised strip for pressing against the flexible button plate 4 to avoid interference with the buttons 511. The height of the raised strip is higher than the height of the buttons 511, and it also serves to position and press the circuit board and the flexible button plate together. By setting the protrusions 43, the accuracy of button 511 operation is ensured, and a tactile feedback is provided for easy user operation. The two buttons symmetrically arranged longitudinally at the upper end of the circuit board 51, and the other two buttons symmetrically arranged laterally at the lower end of the circuit board 51, directly opposite the axis of symmetry of the two upper buttons 511, form a regular and reasonable button layout. When operating a car key, users can easily and accurately press the corresponding buttons by relying on the natural position and movement of their fingers, without the need for complicated searching or adjustments, which effectively improves operating efficiency and conforms to human operating habits.

[0033] Reference Figure 1 , Figure 4 , Figure 6 , Figure 7 As shown, the front cover 1 includes a through hole 14 penetrating the first accommodating cavity 11 and the second accommodating cavity 12. The button sleeve 6 includes button posts 61 disposed on its inner side, passing through the through hole 14 and correspondingly pressing against the outer side of the protrusion 43. The through hole 14, penetrating the first accommodating cavity 11 and the second accommodating cavity 12, provides a stable installation channel for the button posts 61 and allows the button posts 61 to extend and retract within it, ensuring accurate transmission during button operation and making the overall structure of the front cover 1 more compact and stable. Indicator markings 62 are printed on the outer side of the button sleeve 6 to intuitively indicate the function of each button to the user. In specific implementation, in this case, the corresponding indicator markings 62 on the button sleeve 6, that is, the corresponding button functions, include but are not limited to the locking / unlocking function of the car door, the opening function of the car trunk, and the car alarm sound function.

[0034] Continue, refer to Figure 1 , Figure 4 , Figure 6 , Figure 7As shown, the inner side of the button sleeve 6 is provided with several hooks 63, and the front cover 1 also includes a locking hole 15 penetrating the first receiving cavity 11 and the second receiving cavity 12. The hooks 63 are engaged in the locking hole 15. Through this locking structure, the button sleeve 6 can be detachably connected, making it convenient to replace button sleeves 6 with different function indicators. Moreover, this locking structure is stable and easy to install and remove. In specific implementation, the button sleeve 6 can be an integrated design or a split design according to the number of buttons. That is, in this case, four buttons 511 can be divided into four independent button sleeves 6.

[0035] As stated above, this case protects a compact and small car key, and all technical solutions that are the same as or similar to this case should be considered to fall within the scope of protection of this case.

Claims

1. A compact and small-sized car key, characterized in that: The device includes a front cover (1), a rear cover (2) that snaps into the front cover (1), and a hook (3) that snaps into the lower ends of the front cover (1) and the rear cover (2). The device is characterized in that: a first receiving cavity (11) is formed on the inner side of the front cover (1), and a second receiving cavity (12) is formed on the outer side; a flexible keypad (4) is embedded in the first receiving cavity (11); a third receiving cavity (41) is formed on the inner side of the flexible keypad (4); a circuit board assembly (5) is installed in the third receiving cavity (41); and a button is snapped into the second receiving cavity (12). The key sleeve (6) is embedded in the second accommodating cavity (12) and its outer wall surface is lower than the outer wall surface of the front cover (1). The rear cover (2) presses the circuit board assembly (5) into the third accommodating cavity (41) through the support structure and the height of the circuit board assembly (5) is lower than the third accommodating cavity (41). The circuit board assembly (5) presses the flexible key plate (4) into the first accommodating cavity (11) and its height is flush with the first accommodating cavity (11). A fourth accommodating cavity (21) is formed on the inner side of the rear cover (2) to accommodate the circuit board assembly (5).

2. The compact and small-sized car key according to claim 1, characterized in that: The hook component (3) includes a first locking block (31) arranged symmetrically on the left and right sides. The inner sides of the front cover (1) and the rear cover (2) are respectively provided with a first slot (7) for the first locking block (31) to be inserted.

3. The compact and small-sized car key according to claim 1, characterized in that: At least two second locking blocks (22) are provided on the inner wall of the rear cover (2) along the outer periphery of the fourth accommodating cavity (21), and at least two second locking slots (13) for the second locking blocks (22) to be inserted are provided on the inner wall of the front cover (1) along the outer periphery of the first accommodating cavity (11).

4. The compact and small-sized car key according to claim 1, characterized in that: The front cover (1) and the rear cover (2) are all connected to the hook (3) with gaps (8) that facilitate disassembly and assembly.

5. A compact and small-sized car key according to claim 1, characterized in that: The circuit board assembly (5) includes a circuit board (51) and a button battery (52) that is detachably connected to the circuit board (51) and can be modularly assembled and disassembled with the circuit board (51).

6. A compact and small-sized car key according to claim 5, characterized in that: The support structure includes a plurality of first support columns (23) evenly distributed on the inner side of the back cover (2). A portion of the first support columns (23) press against the circuit board (51), and another portion passes through the circuit board (51) and presses against the third accommodating cavity (41) of the flexible keypad (4). The circuit board (51) is provided with corresponding connecting holes (512) for the first support columns (23) to pass through.

7. A compact and small-sized car key according to claim 1, characterized in that: The flexible keypad (4) includes a second support column (42) evenly arranged in the third accommodating cavity (41), and a positioning rod (16) is also provided on the inner side of the front cover (1). A positioning groove (44) for the positioning rod (16) to be inserted is correspondingly provided on the flexible keypad (4).

8. A compact and small-sized car key according to claim 5, characterized in that: The circuit board (51) includes at least four buttons (511) arranged facing the flexible button board (4). Two of the buttons (511) are arranged longitudinally symmetrically at the upper end of the circuit board (51), and the other two buttons (511) are arranged laterally symmetrically at the lower end of the circuit board (51) and are directly opposite the axis of symmetry of the two upper buttons (511). The inner side of the flexible button board (4) is provided with a protrusion (43) for pressing the buttons (511).

9. A compact and small-sized car key according to claim 8, characterized in that: The front cover (1) includes a through hole (14) that passes through the first accommodating cavity (11) and the second accommodating cavity (12). The button sleeve (6) includes a button post (61) that passes through the through hole (14) and is pressed against the outside of the protrusion (43) on its inner side. The button sleeve (6) has an indicator mark (62) printed on its outer side.

10. A compact and small-sized car key according to claim 1, characterized in that: The inner side of the button sleeve (6) is provided with several hooks (63), and the front cover (1) also includes a card hole (15) that passes through the first accommodating cavity (11) and the second accommodating cavity (12). The hooks (63) are engaged in the card hole (15).

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