Anti-falling vehicle-mounted charger

Abstract

The utility model discloses an anti-falling vehicle-mounted charger which comprises a shell, a containing cavity is formed in the shell, an elastic piece through hole is formed in the side wall of the shell, a negative elastic piece is arranged on a circuit board and penetrates through the elastic piece through hole, and the anti-falling vehicle-mounted charger further comprises a driving sleeve rotationally arranged in the shell; the driving piece is arranged on the driving sleeve, penetrates through the shell and is in sliding connection with the shell; the control sleeve is spirally arranged in the shell, the first end of the control sleeve is meshed and slidably connected with the driving sleeve, and the second end of the control sleeve is slidably connected with the negative elastic sheet; through meshing and sliding connection of the driving piece and the control sleeve, the control sleeve spirally ascends and descends along the interior of the shell, so that opening and closing of the negative elastic piece are controlled, locking and unlocking between the vehicle-mounted charger and the power supply interface are achieved, the problem that the vehicle-mounted charger is pulled out together when a USB connecting line is pulled out is solved, and the vehicle-mounted charger is convenient to use. And the user can operate with only one hand, so that potential safety hazards caused by operation with two hands are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle chargers, in particular to an anti-falling vehicle charger. Background Art

[0002] A car charger is an accessory designed to conveniently charge digital products anytime and anywhere using the car's power supply. It is commonly used to convert the power supply interface in the car into a USB interface for charging various portable and handheld devices.

[0003] Existing car chargers generally have positive contacts at the bottom and negative contacts on both sides. When the car charger is plugged into the power supply interface in the car, the negative elastic contact points secure the car charger in the power supply interface. However, when the user needs to unplug the USB cable from the car charger, the car charger cannot rely solely on the elastic force of the negative spring clip and the locking between the power supply interface. The car charger is often unplugged along with the car charger. Even if some products have a spring behind the spring clip, the spring fatigues over time and cannot guarantee that the car charger is locked. To avoid this situation, the user usually needs to hold the car charger with one hand and unplug the USB cable with the other hand, which causes great inconvenience to the user and also poses a safety hazard to driving. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a car charger that prevents falling off to solve the problems raised in the above background technology. To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The anti-drop car charger includes a housing, a housing having a housing cavity for accommodating a circuit board, a side wall of the housing having a spring hole, a negative spring arranged on the circuit board and passing through the spring hole, and a drive sleeve rotatably arranged in the housing;

[0006] a driving member, disposed on the driving sleeve, passing through the housing, and slidably connected to the housing;

[0007] The control sleeve is spirally arranged in the shell, a first end of the control sleeve is engaged with and slidably connected to the drive sleeve, and a second end of the control sleeve is slidably connected to the negative electrode spring.

[0008] Optionally, a limiting through hole is provided on the side wall of the shell, and the limiting through hole is used for allowing the driving member to pass through and allowing the driving member to have a range of motion along the radial direction of the shell.

[0009] Optionally, an inner gear ring is provided at one end of the drive sleeve, and an outer gear ring is provided at the first end of the control sleeve. The inner gear ring and the outer gear ring are meshed, and the outer gear ring can slide along the axial direction of the inner gear ring.

[0010] Optionally, the second end of the control sleeve is provided with a conical inclined surface, and the conical inclined surface is slidably connected to the negative electrode spring.

[0011] Optionally, a follower is provided on the negative electrode spring sheet, and the follower is slidably connected to the control sleeve.

[0012] Optionally, the follower is a boss, and an inclined surface is provided on the boss.

[0013] Optionally, the driving member and the driving sleeve are detachably connected.

[0014] Optionally, an external thread is provided around the outer side of the control sleeve, an internal thread is provided around the inner wall of the shell, and the external thread and the internal thread are spirally connected.

[0015] Optionally, a top cover is further included, a bracket is provided on the top cover, and the circuit board is provided on the bracket.

[0016] Optionally, a bottom shell is further included, the bottom shell and the outer shell are detachably connected, and a positive electrode through hole is opened on the bottom shell.

[0017] Compared with the prior art, the beneficial effect is that, by adopting the above-mentioned scheme, the present invention arranges a driving member on the outside of the driving sleeve, and makes the driving member pass through the outer shell, controls the movement of the driving sleeve from the outside, and makes the control sleeve rise and fall along the spiral inside the outer shell through the engagement and sliding connection of the driving member and the control sleeve, thereby controlling the opening and closing of the negative electrode spring, thereby realizing the locking and unlocking between the car charger and the power supply interface, avoiding the problem of unplugging the car charger when unplugging the USB cable, and this product only requires one hand of the user to operate, avoiding the safety hazards caused by requiring two hands to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall external structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the overall explosion structure of the utility model;

[0020] Figure 3 This is a schematic diagram of the shell structure of the utility model;

[0021] Figure 4 This is a schematic structural diagram of the drive sleeve and control sleeve of the utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the shell of the utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the negative electrode spring and circuit board of the utility model;

[0024] As shown in the above drawings: 1. Outer shell; 2. Circuit board; 3. Spring clip through hole; 4. Negative spring clip; 5. Driving sleeve; 6. Driving member; 7. Control sleeve; 11. Limiting through hole; 51. Inner ring gear; 71. Outer ring gear; 72. Conical inclined surface; 41. Follower; 73. External thread; 74. Internal thread; 8. Top cover; 9. Bracket; 10. Bottom shell. DETAILED DESCRIPTION

[0025] In order to facilitate the understanding of the present application, the present application is described in more detail below in conjunction with the accompanying drawings and specific embodiments; the accompanying drawings provide preferred embodiments of the present application; however, the present application can be implemented in many different forms and is not limited to the embodiments described in this specification; on the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present application more thorough and comprehensive.

[0026] It should be noted that, unless otherwise clearly stipulated and limited, the terms "setting", "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a connection between the two elements; for ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances; the terms "vertical", "horizontal", "left", "right", "front", "rear" and similar expressions used in this specification are for illustrative purposes only.

[0027] At the same time, it should be noted that the terms "first", "second", etc. in the description and claims of this application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence; it should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0028] Unless otherwise defined, all technical and scientific terms used in this specification have the same meanings as those commonly understood by technicians in the technical field to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not used to limit this application.

[0029] like Figure 1-2As shown, an embodiment of the present utility model is: the anti-falling car charger includes a shell 1, a housing 1 is provided with a receiving cavity for accommodating a circuit board 2, the side wall of the shell 1 is symmetrically provided with spring through holes 3, and there are two negative springs 4, which are respectively arranged on the circuit board 2 and pass through the spring through holes 3. The anti-falling car charger also includes: a driving sleeve 5, a driving member 6 and a control sleeve 7, the driving sleeve 5 is rotatably arranged in the shell 1; the driving member 6 is arranged on the outer wall of the driving sleeve 5, passes through the shell 1, and is slidably connected to the shell 1; the control sleeve 7 is spirally arranged in the shell 1, its top end is engaged and slidably connected to the driving sleeve 5, and its bottom end is slidably connected to the negative spring 4.

[0030] It can be understood that when the car charger is inserted into the power supply interface in the car, the control driving member 6 is controlled to drive the driving sleeve 5 to rotate, and when the driving sleeve 5 rotates, it drives the control sleeve 7 to rotate. Since the control sleeve 7 is threadedly connected to the outer shell 1, the control sleeve 7 moves downward along the outer shell 1, and its bottom end contacts the two negative springs 4 respectively, so that the negative springs 4 remain in an outwardly opened state, locking the car charger and the power supply interface. When unlocking is required, the driving member 6 is rotated in the opposite direction to separate the control sleeve 7 and the negative spring 4. The spring is reset by its own elastic force, thereby pulling out the car charger.

[0031] The present application arranges a driving member 6 on the outside of the driving sleeve 5 and makes the driving member 6 pass through the outer shell 1, thereby controlling the movement of the driving sleeve 5 from the outside. Through the engagement and sliding connection of the driving member 6 and the control sleeve 7, the control sleeve 7 is spirally lifted and lowered along the inside of the outer shell 1, thereby controlling the opening and closing of the negative electrode spring 4, thereby realizing the locking and unlocking between the vehicle charger and the power supply interface, avoiding the problem of unplugging the vehicle charger when unplugging the USB cable, and the product can be operated by the user with only one hand, avoiding the safety hazards caused by requiring two hands to operate.

[0032] In one embodiment, Figure 3 As shown, a limiting through hole 11 is provided on the side wall of the housing 1 . The limiting through hole 11 is used for the driving member 6 to pass through and allows the driving member 6 to have a range of motion along the radial direction of the housing 1 .

[0033] Specifically, a limiting through hole 11 is formed through the upper portion of the side wall of the housing 1 . The limiting through hole 11 is a radial slot hole. The slot hole is used for the driving member 6 to pass from the inside to the outside, and allows the driving member 6 to rotate along the radial direction of the housing 1 and limit the driving member 6.

[0034] In one embodiment, Figure 4 As shown, an inner gear ring 51 is provided at one end of the drive sleeve 5 , and an outer gear ring 71 is provided at the first end of the control sleeve 7 . The inner gear ring 51 and the outer gear ring 71 are meshed, and the outer gear ring 71 can slide along the axial direction of the inner gear ring 51 .

[0035] Specifically, an inner ring gear 51 is provided at the lower end of the drive sleeve 5, and an outer ring gear 71 is provided at the upper end of the control sleeve 7. The inner ring gear 51 and the outer ring gear 71 are meshed, and the height of the outer ring gear 71 is greater than the height of the inner ring gear 51. When the outer ring gear 71 drives the inner ring gear 51 to rotate, due to the spiral connection between the control sleeve 7 and the inner wall of the outer shell 1, the outer ring gear 71 rotates and moves along the axial direction of the inner ring gear 51, thereby driving the drive sleeve 5 to rotate and move up and down in the outer shell 1.

[0036] In one embodiment, Figure 4 As shown, the second end of the control sleeve 7 is provided with a conical inclined surface 72 , and the conical inclined surface 72 is slidably connected to the negative electrode spring 4 .

[0037] Specifically, a conical inclined surface 72 is provided at the bottom end of the control sleeve 7, and the conical inclined surface 72 is slidably connected to the negative electrode spring piece 4. When the driving sleeve 5 moves downward, the conical inclined surface 72 causes the negative electrode spring piece 4 to move outward. When the driving sleeve 5 moves upward, the negative electrode spring piece 4 relies on its own elasticity to reset. Of course, a reset spring can be provided between the spring piece and the outer shell 1, and the reset spring can increase the power for resetting the negative electrode spring piece 4.

[0038] In one embodiment, Figure 6 As shown, in order to facilitate the control of the negative electrode spring piece 4, a follower 41 is provided on the negative electrode spring piece 4, and the follower 41 is slidably connected to the control sleeve 7.

[0039] In one embodiment, Figure 6 As shown, the follower 41 is a boss, and the inner side surface of the boss is provided with an inclined surface, which is slidably connected to the tapered inclined surface 72.

[0040] In one embodiment, Figure 4 As shown, in order to facilitate the installation of the drive sleeve 5 in the shell during assembly, the drive member 6 and the drive sleeve 5 are detachably connected. It can be understood that the outer wall of the drive sleeve 5 is provided with a screw hole, and the drive member 6 is a bolt, and the bolt and the screw hole match and are threadedly connected.

[0041] In one embodiment, Figure 4-5 As shown, an external thread 73 is provided around the outer side of the control sleeve 7, and an internal thread 74 is provided around the inner wall of the shell. The external thread 73 and the internal thread 74 are spirally connected. When the inner gear ring 51 and the outer gear ring 71 are engaged, the control sleeve 7 can move up and down along the shell.

[0042] In one embodiment, Figure 2 As shown, it also includes a top cover 8, a bracket 9 is provided at the bottom end of the top cover 8, and the circuit board 2 is provided on the bracket 9, so as to prevent movement interference with the control sleeve 7 and the drive sleeve 5.

[0043] In one embodiment, Figure 2As shown, it also includes a bottom shell 10, which is detachably connected to the outer shell 1, and a positive through-hole is provided on the bottom shell 10. It can be understood that the positive pole is installed on the circuit board 2, and the positive through-hole is used for the positive pole to pass through. The bottom shell 10 and the outer shell 1 are connected by threads to facilitate the assembly of internal components.

[0044] It should be noted that the above-mentioned technical features are further combined with each other to form various embodiments not listed above, which are all deemed to be within the scope of the description of the present utility model; and, for ordinary technicians in this field, they can make improvements or changes based on the above description, and all these improvements and changes should fall within the scope of protection of the claims attached to the present utility model.

Claims

1. A car charger with an anti-drop feature, comprising a housing, a cavity defined within the housing for accommodating a circuit board, a spring hole defined in a sidewall of the housing, a negative spring disposed on the circuit board and extending through the spring hole, and characterized in that: Also includes: a driving sleeve, rotatably disposed in the housing; a driving member, disposed on the driving sleeve, passing through the housing, and being slidably connected to the housing; The control sleeve is spirally arranged in the shell, a first end of the control sleeve is engaged with and slidably connected to the drive sleeve, and a second end of the control sleeve is slidably connected to the negative electrode spring.

2. The anti-falling vehicle charger according to claim 1, characterized in that: The side wall of the shell is provided with a limiting through hole, and the limiting through hole is used for the driving member to pass through and enable the driving member to have a range of movement along the radial direction of the shell.

3. The anti-falling vehicle charger according to claim 1, characterized in that: One end of the drive sleeve is provided with an inner gear ring, and the first end of the control sleeve is provided with an outer gear ring. The inner gear ring and the outer gear ring are meshed, and the outer gear ring can slide along the axial direction of the inner gear ring.

4. The anti-falling vehicle charger according to claim 1, characterized in that: The second end of the control sleeve is provided with a conical inclined surface, and the conical inclined surface is slidably connected to the negative electrode spring.

5. The anti-falling vehicle charger according to claim 4, characterized in that: A follower is provided on the negative electrode spring sheet, and the follower is slidably connected to the control sleeve.

6. The anti-falling vehicle charger according to claim 5, characterized in that: The driven member is a boss, and an inclined surface is provided on the boss.

7. The anti-falling vehicle charger according to claim 1, characterized in that: The driving member and the driving sleeve are detachably connected.

8. The anti-falling vehicle charger according to claim 1, characterized in that: An external thread is provided around the outer side of the control sleeve, and an internal thread is provided around the inner wall of the shell. The external thread and the internal thread are spirally connected.

9. The anti-falling vehicle charger according to claim 1, characterized in that: It also includes a top cover, on which a bracket is arranged, and the circuit board is arranged on the bracket.

10. The anti-falling vehicle charger according to claim 1, characterized in that: The invention also comprises a bottom shell, which is detachably connected to the outer shell, and a positive electrode through hole is opened on the bottom shell.

Images