Power cord fixing structure and charger applying same

Abstract

The application relates to the technical field of chargers, and relates to a power line fixing structure, which comprises an opening on a lower cover, a group of symmetrically-distributed limiting arms arranged at the inner side surface of the lower cover, a limiting cavity formed between the limiting arms and the inner side surface of the lower cover, the opening being located in the limiting cavity, a line body comprising a connecting end, a limiting groove and a fixing sheet arranged on the connecting end, the connecting end being elastic, the connecting end being rotated by 90 degrees after penetrating through the opening, so that the limiting groove is clamped on the limiting arms, and the fixing sheet fully abuts against the limiting arms. Based on the above, the overall structure can effectively prevent the line body from being separated from the lower cover, the connection stability is high, the practicability is good, and the market promotion value is high. In addition, the application further provides a charger.

Description

Technical Field

[0001] This application relates to the field of charger technology, and in particular to a power cord fixing structure and a charger using the same. Background Technology

[0002] A charger consists of a charging head and a cable. Most electronic devices on the market require a charger for charging. Depending on the power specifications, the cable can be connected to the charging head in a detachable manner or in a fixed manner. In the case of a fixed connection, the diameter of the part of the cable that mates with the charging head will gradually increase to ensure the safety and stability of high-power power usage.

[0003] Current commercially available cables and charging heads typically use a simple snap-fit ​​mechanism, preventing the cable from being pulled out horizontally. This design makes the cable prone to detachment and breakage when exposed to high temperatures and softening, and when it rotates. Therefore, further improvements are needed. Summary of the Invention

[0004] In order to improve the problem that existing cord connection structures are prone to detachment when exposed to high temperatures and rotation, the purpose of this application is to provide a power cord fixing structure and a charger using the same.

[0005] Firstly, the power cord fixing structure provided in this application adopts the following technical solution: A power cord fixing structure includes a charging head and a cord body. The cord body is fixedly connected to the charging head. The charging head includes an upper cover and a lower cover. The lower cover has an opening. A set of symmetrically distributed limiting arms are provided on the inner side of the lower cover. A limiting cavity is formed between the limiting arms and the inner side of the lower cover. The opening is located within the limiting cavity. The cord body includes a connecting end. The connecting end is provided with a limiting groove and a fixing piece. The connecting end is elastic. After passing through the opening, the connecting end rotates 90 degrees, so that the limiting groove engages with the limiting arm, and the fixing piece fully abuts against the limiting arm. An abutment rod is provided on the inner side of the upper cover directly above the connecting end. When the upper cover is closed by the lower cover, the abutment rod abuts vertically against the top of the connecting end.

[0006] By adopting the above technical solution, the connecting end of the line passes through the opening and rotates 90 degrees, so that the connecting end and the opening are spatially perpendicular. The physical structure is used to achieve basic anti-detachment. The rotating connecting end limit groove is locked onto the limit arm, and the limit arm is used to prevent the connecting end from detaching. When the abutting rod of the upper cover is perpendicular to the top of the connecting end, the connecting end is completely limited by its shape. It is impossible to control the rotation of the connecting end by rotating the line externally. When the connecting end is exposed to high temperature and softens more, it is also impossible to control the rotation of the connecting end to cause it to detach from the lower cover. The overall structure can effectively prevent the line from detaching from the lower cover, and the connection stability is strong.

[0007] Optionally, the limiting groove includes a first snap-fit ​​groove and a second snap-fit ​​groove, the fixing piece includes a first connecting piece and a second connecting piece, the first snap-fit ​​groove is formed on the side of the connecting end near the first connecting piece, the second snap-fit ​​groove is formed between the other side of the first connecting piece and the second connecting piece, the first connecting piece is located in the limiting cavity, the second snap-fit ​​groove is snapped into the limiting arm, and the second connecting piece abuts against the outer side of the limiting arm.

[0008] By adopting the above technical solution, the first snap-fit ​​groove allows one side of the first connecting piece to fully abut against the inner side of the lower cover after the connecting end is installed. At the same time, the second snap-fit ​​groove engages with the limiting arms on both sides, so that the first and second connecting pieces of the connecting end can fully utilize the lower cover and the limiting arms to achieve support and prevent detachment, resulting in a stable structure.

[0009] Optionally, the first connecting piece, the second connecting piece, and the opening are waist-shaped, and when the line controls the connecting end to rotate 90 degrees, the first connecting piece, the second connecting piece, and the opening are spatially perpendicular.

[0010] By adopting the above technical solution, the first connecting piece, the second connecting piece, and the opening are waist-shaped. After the connecting end is rotated 90 degrees, the first connecting piece, the second connecting piece, and the opening are spatially vertically distributed, making it impossible for the connecting end to be directly pulled out horizontally, thus providing a good foolproof effect.

[0011] Optionally, the limiting arm has an "L" shaped structure and is integrally formed with the lower cover.

[0012] By adopting the above technical solution, the limiting arm and the lower cover are integrally formed, the process is simple and feasible, and the overall structure is stable.

[0013] Optionally, the abutment rod is inserted into the limiting cavity and abuts against the top of the first connecting piece.

[0014] By adopting the above technical solution, the abutting rod is inserted into the limiting cavity. During the abutting process, it will not detach from the limiting cavity, so that the abutting rod can maintain a stable abutting effect after the upper cover and lower cover are assembled.

[0015] Optionally, a first connecting segment is provided on one side of the connecting end near the first connecting piece and at the first snap-fit ​​groove position, and a second connecting segment is provided on the other side of the second connecting piece between the second connecting piece and the first connecting piece and at the second snap-fit ​​groove position. When the abutting rod abuts against the top of the first connecting piece, the first connecting segment abuts against the bottom inner edge of the opening.

[0016] By adopting the above technical solution, the first connecting segment is used so that when the abutting rod abuts, the first connecting segment can abut against the bottom inner edge of the opening under the action of gravity, effectively avoiding the space for possible rotation at the connecting end and preventing it from rotating; at the same time, the second connecting segment is used to achieve a stable connection between the first connecting piece and the second connecting piece, and the connection strength between the two is higher during the barrier process.

[0017] Optionally, it also includes an auxiliary limiting member, which includes a first support member and a second support member. The first support member is inserted into the limiting cavity and is located below the connecting end. The second support member is attached to the outside of the limiting arm and one end abuts against the inner side of the lower cover.

[0018] By adopting the above technical solution, the first support member is inserted into the limiting cavity and can slide vertically up and down. After the connecting end is installed, the auxiliary limiting member is controlled to slide from the bottom towards the connecting end, so that the first support member abuts against the lower outer part of the connecting end. The connecting end can use the auxiliary limiting member to strengthen the limiting resistance and better achieve the anti-detachment effect. One end of the second support member abuts against the inner side of the lower cover, which increases the overall limiting resistance area and strengthens the limiting strength.

[0019] Optionally, the top of the first support member is adapted to the shape of the first connecting piece and the first connecting segment.

[0020] By adopting the above technical solution, the top of the first support member is adapted to the shape of the first connecting piece and the second connecting segment. By adding multiple abutment points, the rotation of the connecting end is effectively avoided, resulting in a better anti-detachment effect of the connecting end.

[0021] Optionally, a third support member is symmetrically arranged on both sides of the second support member. The third support member is hinged to the second support member, and a limiting part is provided on the second support member, so that when the third support member rotates downward along the hinge point, it abuts against the limiting part and is in a vertical state with the second support member.

[0022] By adopting the above technical solution, when the auxiliary limiting member rises from the bottom to enhance the limiting resistance to the connecting end, there is a height difference between the auxiliary limiting member and the lower cover. The third support member can effectively support the overall weight of the auxiliary limiting member. The third support member adopts a hinged rotation structure, which does not affect the normal height increase and decrease of the auxiliary limiting member. When the third support member rotates downward along the hinge point, the limiting part and the second support member are in a vertical state structure, which stably realizes the support process.

[0023] Secondly, the charger provided in this application includes the aforementioned power cord fixing structure.

[0024] Optionally, the lower cover of the charger is fixedly connected to the cable. This fixed structure prevents the cable from detaching from the lower cover, ensuring a stable connection and good anti-detachment effect.

[0025] By adopting the above technical solution In summary, this application includes at least one of the following beneficial effects: 1. After the connecting end of the line passes through the opening, it rotates 90 degrees, making the connecting end and the opening spatially perpendicular. This physical structure achieves basic anti-detachment. The rotating connecting end's limiting groove engages with the limiting arm, which prevents the connecting end from detaching. When the abutting rod of the upper cover abuts vertically against the top of the connecting end, the connecting end is completely externally limited, and cannot be rotated by externally rotating the line. When the connecting end softens further due to high temperature, it is also impossible to detach from the lower cover by controlling the rotation of the connecting end. The overall structure effectively prevents the line from detaching from the lower cover, has strong connection stability, good practicality, and has significant market promotion value. 2. By utilizing the first snap-fit ​​groove, after the connecting end is installed, one side of the first connecting piece can fully abut against the inner side of the lower cover. At the same time, the second snap-fit ​​groove is engaged with the limiting arms on both sides, so that the first connecting piece and the second connecting piece of the connecting end can fully utilize the lower cover and the limiting arms to achieve support and prevent detachment, and the structure is stable. 3. The first support member is inserted into the limiting cavity and can slide vertically up and down. After the connecting end is installed, the auxiliary limiting member is controlled to slide from the bottom towards the connecting end, so that the first support member abuts against the lower part of the connecting end. The connecting end can use the auxiliary limiting member to strengthen the limiting resistance and better achieve the anti-detachment effect. One end of the second support member abuts against the inner side of the lower cover, which increases the overall limiting resistance area and strengthens the limiting strength. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the lower cover structure of this application; Figure 2 This is a schematic diagram of the linear structure of this application; Figure 3 This is a schematic diagram of the connection structure between the charging head and the cable in this application; Figure 4 This is a schematic diagram of the structure of the cover of this application; Figure 5 This is a schematic diagram of the installation structure according to the first embodiment of this application; Figure 6 This is a structural schematic diagram of the auxiliary limiting component of this application; Figure 7 This is a schematic diagram of the installation structure according to the second embodiment of this application; Figure 8 This is an overall external installation effect diagram of this application.

[0027] Explanation of reference numerals in the attached figures: 100. Charging head; 110. Top cover; 111. Abutment rod; 120. Bottom cover; 121. Opening; 122. Limiting arm; 123. Limiting cavity; 200. Cable; 210. Connecting end; 211. First snap-fit ​​groove; 212. Second snap-fit ​​groove; 213. First connecting piece; 214. Second connecting piece; 220. First connecting segment; 230. Second connecting segment; 300. Auxiliary limiting component; 310. First support component; 320. Second support component; 321. Limiting part; 330. Third support component; 340. Hinge column; 400. Limiting mechanism; 410. Connecting rod; 420. Slider. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail below.

[0029] Example 1: A power cord fixing structure, see Figure 1 and Figure 2 One end of the cable 200 is provided with a connecting end 210, which is fixedly connected to the lower cover 120, and the other end is connected to the charging interface of the electronic device.

[0030] The lower cover 120 has an opening 121, which is waist-shaped. A set of limiting arms 122 are symmetrically arranged on the inner side of the lower cover 120 at the side of the opening 121. The limiting arms 122 have an "L"-shaped structure and are integrally formed with the lower cover 120, making the process simple and feasible, and ensuring a stable connection structure. A limiting cavity 123 is formed between the two limiting arms 122 and the inner side of the lower cover 120. A limiting groove and a fixing piece are provided on the connecting end 210. The connecting end 210 has elastic deformation when subjected to external force. The limiting groove includes a first locking groove 211 and a second locking groove 212, and the fixing piece includes a first connecting piece 213 and a second connecting piece 214. See Figure 2 and Figure 3A first snap-fit ​​groove 211 is formed on the side of the connecting end 210 near the first connecting piece 213, and a second snap-fit ​​groove 212 is formed between the other side of the first connecting piece 213 and the second connecting piece 214. When the external rotating line 200 controls the connecting end 210 to rotate 90 degrees, the connecting end 210 is squeezed and deformed locally under the limiting action of the limiting arm 122, so that the first connecting piece 213 is located in the limiting cavity 123, the second snap-fit ​​groove 212 is snapped into the two limiting arms 122, and the second connecting piece 214 abuts against the outer side of the limiting arm 122. At this time, the first connecting piece 213 and the second connecting piece 214 of the connecting end 210 can make full use of the lower cover 120 and the limiting arm 122 to achieve support and prevent detachment, and the structure is stable.

[0031] In this embodiment, the first connecting piece 213, the second connecting piece 214 and the opening 121 are all waist-shaped. When the external rotating line 200 controls the connecting end 210 to rotate 90 degrees, the first connecting piece 213, the second connecting piece 214 and the opening 121 are spatially vertically distributed, so that the connecting end 210 cannot be directly pulled out horizontally, which has a good foolproof effect.

[0032] See Figure 2 , Figure 4 and Figure 5 An abutment rod 111 is provided on the inner side of the upper cover 110 directly above the installation position of the connecting end 210. The abutment rod 111 is vertically connected to the upper cover 110, and the two are integrally formed, with a stable connection structure. When the upper cover 110 is closed to the lower cover 120 by snap-fit, the abutment rod 111 abuts vertically against the top of the connecting end 210, that is, the abutment rod 111 is inserted into the limiting cavity 123 and abuts against the top of the first connecting piece 213. At this time, the connecting end 210 achieves complete shape limitation, and the connecting end 210 cannot be controlled to rotate by the external rotating line 200. When the connecting end 210 is exposed to high temperature and softens more, it is also impossible to cause it to detach from the lower cover 120 by controlling the rotation of the connecting end 210. With this structure, the abutment rod 111 will not detach from the limiting cavity 123 at the same time. The overall structure can effectively prevent the line 200 from detaching from the lower cover 120.

[0033] It should be noted that a first connecting segment 220 is provided on the side of the connecting end 210 near the first connecting piece 213 and at the position of the first snap-fit ​​groove 211. A second connecting segment 230 is provided on the other side of the second connecting piece 214 between the first connecting piece 213 and at the position of the second snap-fit ​​groove 212. When the abutting rod 111 abuts against the top of the first connecting piece 213, the first connecting segment 220 slides down along the opening 121 and abuts against the bottom inner edge of the opening 121. By using the first connecting segment 220, when the abutting rod 111 abuts, the first connecting segment 220 can abut against the bottom inner edge of the opening 121 under the action of gravity, effectively avoiding any space for possible rotation of the connecting end 210, thus preventing it from rotating. At the same time, by using the second connecting segment 230, a stable connection is achieved between the first connecting piece 213 and the second connecting piece 214, and the connection strength is higher during the barrier function.

[0034] The implementation principle of this application embodiment is as follows: After the connecting end 210 of the line 200 passes through the opening 121, it rotates 90 degrees, so that the connecting end 210 and the opening 121 are spatially perpendicularly distributed. The physical structure is used to achieve basic anti-detachment. The rotating connecting end 210 is locked in the limiting groove on the limiting arm 122. The limiting arm 122 is used to prevent the connecting end 210 from detaching. When the abutting rod 111 of the upper cover 110 abuts vertically against the top of the connecting end 210, the connecting end 210 is completely limited in shape. It is impossible to control the rotation of the connecting end 210 by externally rotating the line 200. When the connecting end 210 is exposed to high temperature and softens more, it is also impossible to control the rotation of the connecting end 210 to cause it to detach from the lower cover 120. The overall structure can effectively prevent the line 200 from detaching from the lower cover 120.

[0035] Example 2: The difference between this example and Example 1 is that, see below... Figure 2 , Figure 6 and Figure 7 An auxiliary limiting component 300 is added. The auxiliary limiting component 300 includes a first support component 310 and a second support component 320. The first support component 310 and the second support component 320 are integrally formed. The first support component 310 is inserted into the limiting cavity 123 and can slide vertically up and down along the limiting cavity 123. The first support component 310 is located below the connecting end 210. Before the connecting end 210 is installed, the first support component 310 is slid along the top opening 121 of the limiting cavity 123 to the bottom. Then the connecting end 210 can be installed. The second support component 320 fits against the outside of the two limiting arms 122 and one end abuts against the inner side of the lower cover 120, and is flush with the connecting surface of the limiting arms 122.

[0036] Specifically, after the auxiliary limiting member 300 and the connecting end 210 are installed in sequence, the auxiliary limiting member 300 is controlled to slide from the bottom of the limiting cavity 123 toward the connecting end 210, so that the top of the first support member 310 abuts against the lower outer part of the connecting end 210. The connecting end 210 can use the auxiliary limiting member 300 to strengthen the limiting resistance and better achieve the anti-detachment effect. One end of the left and right sides of the second support member 320 abuts against the inner side of the lower cover 120, so that the overall limiting resistance area is increased and the limiting strength is stronger.

[0037] The top of the first support member 310 is adapted to the shape of the first connecting piece 213 and the first connecting section 220 respectively. By adding multiple abutment points, the rotation of the connecting end 210 is effectively avoided, making the anti-detachment effect of the connecting end 210 better.

[0038] The second support member 320 is symmetrically provided with third support members 330 on both sides. The third support members 330 are hinged to the second support member 320 through hinge posts 340. The bottom of the second support member is provided with a limiting part 321. When the third support post rotates downward along the hinge point, the limiting part 321 is used to achieve a stroke stop, so that it is vertical with the second support member 320. At this time, the bottom of the third support member 330 also abuts against the lower cover 120. Specifically, when the auxiliary limiting member 300 rises from the bottom to enhance the limiting resistance to the connecting end 210, there is a height difference between the auxiliary limiting member 300 and the lower cover 120. The third support member 330 can effectively support the overall weight of the auxiliary limiting member 300. The third support member 330 adopts a hinged rotation structure, which does not affect the normal height rise and fall of the auxiliary limiting member 300. When the limiting part 321 and the second support member 320 are in a vertical state, the support process is stably realized.

[0039] It should be noted that, in order to prevent the third support member 330 from rotating under the removal of external force, thus avoiding loss of support for the second support member 320, in this embodiment, the hinge column 340 and the third support member 330 are designed with an interference fit, so that there is a certain holding force between them, preventing the third support member 330 from rotating under the control of the removal of external force. At the same time, in order to achieve a better limiting effect, a limiting mechanism 400 is also provided on the second support member 320 in this embodiment. The limiting mechanism 400 includes a connecting rod 410 and a slider 420. The slider 420 slides on the third support member 330. One end of the connecting rod 410 is hinged to the second support member 320, and the other end is hinged to the slider 420. The sliding direction of the slider 420 on the third support member 330 is adapted to the rotation direction of the third support member 330 along the hinge column 340. By using the limiting mechanism 400, the rotational position of the third support member 330 can be strengthened, and the connection effect is good.

[0040] The implementation principle of this application embodiment is as follows: Utilizing the structure of the auxiliary limiting member 300, after the auxiliary limiting member 300 and the connecting end 210 are installed in sequence, the auxiliary limiting member 300 is controlled to slide from the bottom of the limiting cavity 123 toward the position of the connecting end 210, so that the top position of the first support member 310 abuts against the lower outer shape of the connecting end 210. The connecting end 210 can use the auxiliary limiting member 300 to strengthen the limiting resistance and better achieve the anti-detachment effect. One end of the left and right sides of the second support member 320 abuts against the inner side of the lower cover 120 at the same time, so that the overall limiting resistance area is increased and the limiting strength is stronger.

[0041] Example 3: A charger, comprising the aforementioned cable fixing structure, including an upper cover 110 and a lower cover 120, which are fixed by snap-fit. The lower cover 120 and the cable 200 are fixedly connected. Through this fixing structure, the cable 200 will not detach from the lower cover 120, the connection structure is stable, and the anti-detachment effect is good.

[0042] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A power cord fixing structure, comprising a charging head (100) and a cord body (200), wherein the cord body (200) is fixedly connected to the charging head (100), and the charging head (100) comprises an upper cover (110) and a lower cover (120), characterized in that: The lower cover (120) has an opening (121), and a set of symmetrically distributed limiting arms (122) are provided on the inner side of the lower cover (120). A limiting cavity (123) is formed between the limiting arms (122) and the inner side of the lower cover (120). The opening (121) is located in the limiting cavity (123). The line body (200) includes a connecting end (210). The connecting end (210) is provided with a limiting groove and a fixing piece. The connecting end (210) has The connecting end (210) is elastic. After passing through the opening (121), it rotates 90 degrees so that the limiting groove is engaged with the limiting arm (122) and the fixing piece fully abuts against the limiting arm (122). The inner side of the upper cover (110) is provided with an abutting rod (111) located directly above the connecting end (210). When the upper cover (110) is closed by the lower cover (120), the abutting rod (111) abuts vertically against the top of the connecting end (210). The limiting groove includes a first snap-fit ​​groove (211) and a second snap-fit ​​groove (212), the fixing piece includes a first connecting piece (213) and a second connecting piece (214), the connecting end (210) forms the first snap-fit ​​groove (211) on the side near the first connecting piece (213), and forms the second snap-fit ​​groove (212) between the other side of the first connecting piece (213) and the second connecting piece (214), the first connecting piece (213) is located in the limiting cavity (123), the second snap-fit ​​groove (212) is snapped into the limiting arm (122), and the second connecting piece (214) abuts against the outer side of the limiting arm (122); The abutting rod (111) is inserted into the limiting cavity (123) and abuts against the top of the first connecting piece (213); The connecting end (210) is located on the side close to the first connecting piece (213) and a first connecting segment (220) is provided at the position of the first snap-fit ​​groove (211). When the abutting rod (111) abuts against the top of the first connecting piece (213), the first connecting segment (220) abuts against the bottom inner edge of the opening (121).

2. The power cord fixing structure according to claim 1, characterized in that: The first connecting piece (213), the second connecting piece (214) and the opening (121) are waist-shaped. When the line body (200) controls the connecting end (210) to rotate 90 degrees, the first connecting piece (213), the second connecting piece (214) and the opening (121) are spatially vertically distributed.

3. The power cord fixing structure according to claim 1, characterized in that: The limiting arm (122) has an "L" shaped structure and is integrally formed with the lower cover (120).

4. The power cord fixing structure according to claim 1, characterized in that: The connecting end (210) is provided with a first connecting segment (220) on one side near the first connecting piece (213) and at the position of the first snap-fit ​​groove (211). The second connecting piece (214) is provided with a second connecting segment (230) on the other side between the second connecting piece (213) and the first connecting piece (213) and at the position of the second snap-fit ​​groove (212). When the abutting rod (111) abuts against the top of the first connecting piece (213), the first connecting segment (220) abuts against the bottom inner edge of the opening (121).

5. The power cord fixing structure according to claim 1, characterized in that: It also includes an auxiliary limiting member (300), which includes a first support member (310) and a second support member (320). The first support member (310) is inserted into the limiting cavity (123) and is located below the connecting end (210). The second support member (320) is attached to the outside of the limiting arm (122) and one end abuts against the inner side of the lower cover (120).

6. The power cord fixing structure according to claim 5, characterized in that: The top of the first support member (310) is adapted to the shape of the first connecting piece (213) and the first connecting segment (220).

7. A power cord fixing structure according to claim 5, characterized in that: The second support member (320) is symmetrically provided with a third support member (330) on both sides. The third support member (330) is hinged to the second support member (320), and a limiting part (321) is provided on the second support member (320), so that when the third support member (330) rotates downward along the hinge point, it abuts against the limiting part (321) and is in a vertical state with the second support member (320).

8. A charger, characterized in that: It includes a power cord fixing structure as described in any one of claims 1-7.

Images