Automobile cigarette lighter female seat
By introducing overload protection and alignment components into the automotive cigarette lighter socket, stable contact between the resistance wire and the electrode is ensured, solving the problem of poor contact and improving the safety and stability of the connection.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN CHUANGXU WIRE CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-05-15
AI Technical Summary
If the contact point of the existing automotive cigarette lighter socket is loose, it can easily lead to poor electrical contact, causing the socket to overheat and posing a safety hazard to the circuit.
A female connector for an automotive cigarette lighter has been designed, comprising a base, a straight rod, an insulating block, a power-conducting post, an electrode, and a resistance wire. Overload protection components and alignment components ensure stable contact between the resistance wire and the electrode, preventing tilting and shaking. An anti-static layer and anti-shake components enhance safety.
It effectively solves the problem of loose connection, improves the tightness and safety of the connection between the female and male sockets of the cigarette lighter, reduces the risk of leakage and overheating, and ensures stable power supply to the circuit.
Smart Images
Figure CN224240895U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive cigarette lighter technology, specifically to an automotive cigarette lighter socket. Background Technology
[0002] The cigarette lighter is a component found in all cars, used to provide a light source for drivers to light cigarettes. A cigarette lighter generally consists of two parts: a plug and a socket. The plug is used to light cigarettes, but it is not electrically powered itself. It needs to be inserted into a socket to charge for a period of time. After sufficient electricity is charged and converted into heat energy, the plug pops out of the socket for the driver to use.
[0003] In the prior art, such as the automotive cigarette lighter socket energizing device with authorization number CN208189903U, the automotive cigarette lighter socket energizing device includes an insulating protective sleeve, a first positive terminal, a second positive terminal, a negative terminal, and three wires; the first positive terminal, the second positive terminal, and the negative terminal are disposed inside the insulating protective sleeve; the first positive terminal, the second positive terminal, and the negative terminal are respectively sleeved on the ends of the wires.
[0004] In the above, the energizing effect of the cigarette lighter is basically achieved through the connection of the terminals and the insulating protective sleeve and the wire. However, after reading the technical solution, it is found that the positive and negative terminals and connectors are all mated together. Considering that there is a tension spring in the male connector, the driver often shakes the female connector when connecting the cigarette lighter and when the female connector is connected to the data cable. This causes the female connector's terminals to make contact with the male connector, resulting in poor contact and easy overheating of the female connector. It can also cause the resistive element inside the female connector to tilt, causing heat to be generated at the external interface of the female connector, which affects the wiring safety of the car circuit. Utility Model Content
[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a car cigarette lighter socket, which can effectively solve the problem of poor contact at the contact position and poor contact at the power supply position of the socket in the existing technology.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] This utility model provides a female connector for a car cigarette lighter, including a bottom base. An interface is provided on one side of the bottom base, and a straight rod is inserted into the other side of the bottom base. An insulating block is fixedly connected to the end face of the straight rod. A power-conducting post is adapted to be installed at one end of the insulating block. An electrode is snapped into the side of the power-conducting post, and a resistance wire is embedded in the end face of the electrode. The resistance wire is built into the inner cavity of the straight rod.
[0008] The resistance wire is equipped with an overload protection component, which is used to quickly detach the resistance wire from the electrode when it is tilted. The straight rod is equipped with an alignment component, which is used to place the resistance wire at the center of the insulating block.
[0009] Furthermore, the overload protection component includes a straight spring fixedly connected to the end face of the resistance wire, a right-angle block adapted to be installed on the outer surface of the straight spring, and two sliding grooves are formed on the surface of the insulating block, with the inner groove surface of the sliding groove slidably connected to the right-angle block.
[0010] Furthermore, the outer side of the straight spring is coated with an antistatic layer, and the center of the straight spring is aligned with the center of the resistance wire.
[0011] Furthermore, the alignment component includes a support block, which is fixedly connected to the inner wall of the insulating block. A pushing spring is provided on the inner side of the support block, and an abutting ball is fixedly connected to one end of the pushing spring.
[0012] Furthermore, the number of alignment components is several groups, and the distribution of the several groups of alignment components is a circular array.
[0013] Furthermore, the alignment component is equipped with an anti-sway component, which includes an inner sliding column, the top of which is pressed against and squeezed by the abutting ball.
[0014] Furthermore, an outer ring is slidably connected to the outer side of the inner sliding column, and a sealing seat is fixedly connected to the bottom of the outer ring. The lower surface of the sealing seat is fixedly connected to the resistance wire.
[0015] Furthermore, a support rod is provided on the surface of the inner sliding column, and a vertical plate is slidably fitted on one side of the support rod. The vertical plate has multiple insertion holes, and the insertion holes are movably inserted into the support rod.
[0016] Beneficial effects
[0017] The technical solution provided by this utility model has the following advantages compared with the known prior art:
[0018] 1. By installing a straight rod on one side of the bottom seat, and fixing an insulating block to the end face of the straight rod, the outer side of the cigarette lighter female seat is isolated by the insulating block after being energized, avoiding the risk of leakage. Furthermore, through the cooperation of the energizing post, the electrode, and the resistance wire, the cigarette lighter female seat and the male seat are energized. In particular, an overload protection component is set on the outer side of the resistance wire. When the driver is about to shake the cigarette lighter female seat, he can pull the overload protection component in advance to disconnect the resistance wire from the electrode. Then, he can continue to shake the cigarette lighter female seat to make contact with the male seat, and the resistance wire, the electrode, and the energizing post are energized. Through the pre-completed action, the problem of loose connection caused by shaking the cigarette lighter female seat is solved, making the connection between the cigarette lighter female seat and the male seat tighter and significantly improving the safety of the connection.
[0019] Second, the matching installation of the straight spring and the right-angle block makes the pulling distance more uniform when the driver pulls the right-angle block, thereby reducing the indirect contact time between the female and male seats, thus improving the safety of the female seat during the power-on process. In addition, the sliding connection between the slide and the right-angle block allows the driver to keep the pulling in a straight line, thereby ensuring that the cigarette lighter female seat is in contact with the driver's hand and there is no unstable grip. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the present invention;
[0022] Figure 2 This is a schematic diagram of the structure that enables the interface to prevent overload in this utility model;
[0023] Figure 3 This is an assembly diagram showing the sequential installation in this utility model;
[0024] Figure 4 This is a schematic diagram of the structure that achieves stable placement of the resistance wire in this utility model;
[0025] Figure 5 This utility model Figure 4 A schematic diagram of the structure at point A in the middle.
[0026] Reference numerals: 1. Bottom seat; 11. Interface; 2. Straight rod; 3. Electrode; 4. Insulating block; 5. Current-carrying post; 6. Resistance wire; 7. Overload protection assembly; 71. Straight spring; 72. Right-angle block; 73. Slide groove; 8. Alignment assembly; 81. Support block; 82. Pushing spring; 83. Abutting ball; 9. Anti-sway assembly; 91. Inner sliding post; 92. Outer ring; 93. Sealing seat; 94. Support rod; 95. Vertical plate; 951. Insertion hole. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0028] The present invention will be further described below with reference to the embodiments.
[0029] See attached document Figure 1-5 A female connector for a car cigarette lighter includes a base 1, an interface 11 on one side of the base 1, a straight rod 2 inserted into the other side of the base 1, an insulating block 4 fixedly connected to the end face of the straight rod 2, a power-conducting post 5 adapted to be installed at one end of the insulating block 4, an electrode 3 snapped into the side of the power-conducting post 5, a resistance wire 6 fitted into the end face of the electrode 3, and the resistance wire 6 is built into the inner cavity of the straight rod 2.
[0030] Among them, the resistance wire 6 is equipped with an overload protection component 7, which is used to quickly detach the resistance wire 6 from the electrode 3 when it is tilted. The straight rod 2 is equipped with an alignment component 8, which is used to place the resistance wire 6 at the center of the insulating block 4.
[0031] An interface 11 is provided on one side of the bottom seat 1, allowing the external data cable to be connected to the interface 11 for power supply, demonstrating the functionality of the cigarette lighter female socket. A straight rod 2 is installed on one side of the bottom seat 1, with an insulating block 4 fixedly installed on the end face of the straight rod 2. This ensures that the outer surface of the cigarette lighter female socket is isolated by the insulating block 4 after power is supplied, preventing the risk of leakage. Furthermore, through the cooperation of the power supply post 5, the electrode 3, and the resistance wire 6, the cigarette lighter female socket and the male socket are energized. An overload protection component 7 is provided on the outer side of the resistance wire 6. When the driver is about to shake the cigarette lighter female socket, the overload protection component 7 is pulled in advance to disconnect the resistance wire 6 from the electrode 3. Then, the cigarette lighter female socket is shaken to make contact with the male socket, and the resistance wire 6, the electrode 3, and the power supply post 5 are energized. This pre-completed action solves the problem of loose connection caused by shaking the cigarette lighter female socket, making the connection between the cigarette lighter female socket and the male socket tighter and significantly improving the safety of the connection.
[0032] The overload protection component 7 includes a straight spring 71 fixedly connected to the end face of the resistance wire 6. A right-angle block 72 is fitted onto the outer surface of the straight spring 71. Two sliding grooves 73 are provided on the surface of the insulating block 4. The inner groove surface of the sliding groove 73 is slidably connected to the right-angle block 72.
[0033] By adapting the straight spring 71 to the right-angle block 72, the pulling distance of the driver when pulling the right-angle block 72 is more uniform, thereby reducing the indirect contact time between the female and male seats and improving the safety of the female seat during power-on. In addition, the sliding connection between the slide groove 73 and the right-angle block 72 ensures that the driver's pulling always remains in a straight line, thus ensuring that the cigarette lighter female seat is in contact with the driver's hand and that there is no unstable grip.
[0034] The outer side of the straight spring 71 is coated with an antistatic layer, and the center of the straight spring 71 is aligned with the center of the resistance wire 6.
[0035] By coating the outside of the straight spring 71 with an antistatic layer, metal particles from the driver's hands can be avoided, thus preventing short-circuit breakdown of the resistance wire 6.
[0036] The alignment component 8 includes a support block 81, which is fixedly connected to the inner wall of the insulating block 4. A push spring 82 is provided on the inner side of the support block 81, and an abutment ball 83 is fixedly connected to one end of the push spring 82. The alignment components 8 are in several groups, and the distribution of the several groups of alignment components 8 is in a ring array.
[0037] By fixing a stop ball 83 to one end of the push spring 82, when the resistance wire 6 is pulled out, the outer side of the stop ball 83 is squeezed, and the stop ball 83 further pushes the push spring 82 to compress. The push spring 82 reacts to the stop ball 83, so that the stop ball 83 is firmly locked onto the outer side of the resistance wire 6, ensuring that the resistance wire 6 will not be tilted out, thus solving the problem of local overheating of the cigarette lighter socket caused by the tilting of the resistance wire 6.
[0038] The alignment component 8 is equipped with an anti-shaking component 9, which includes an inner sliding column 91. The top of the inner sliding column 91 is pressed against the abutting ball 83. An outer ring 92 is slidably connected to the outer side of the inner sliding column 91. A sealing seat 93 is fixedly connected to the bottom of the outer ring 92. The lower surface of the sealing seat 93 is fixedly connected to the resistance wire 6.
[0039] By bringing the inner sliding post 91 into close contact with the abutting ball 83, the abutting ball 83 and the inner sliding post 91 achieve the function of fixed point fixation. After this, the outer side of the resistance wire 6 has multiple fixing points, which can be used for the stable pulling of the resistance wire 6.
[0040] The inner sliding column 91 is provided with a support rod 94. A vertical plate 95 is slidably fitted on one side of the support rod 94. The vertical plate 95 has multiple insertion holes 951, which are movably inserted into the support rod 94.
[0041] By connecting the support rod 94 with the insertion hole 951, the sliding of the inner sliding column 91 can be made more stable, thereby enhancing the pulling stability of the resistance wire 6.
[0042] Working principle: First, connect the interface 11 on the side of the bottom seat 1 to the external data cable to complete the data connection of the bottom seat 1. Then, the driver holds the straight rod 2. When the driver is about to shake the cigarette lighter socket, he pulls the right-angle block 72 in advance, so that the straight spring 71 drives the resistance wire 6 to slide. Then, the displacement of the resistance wire 6 will cause the inner sliding column 91 to abut against the abutting ball 83. The abutting ball 83 pushes the push spring 82 to compress, so that the abutting ball 83 reacts to the contact surface of the inner sliding column 91, further allowing the inner sliding column 91 to slide inside the outer ring 92. Then, the support rod 94 set on the side of the inner sliding column 91 is movably engaged with the insertion hole 951.
[0043] After the support rod 94 is engaged and fixed with the insertion hole 951, the driver stops pushing the cigarette lighter socket. At this time, the resistance wire 6 contacts the electrode 3 and the energizing post 5 of the male socket, completing the energizing connection. Further investigation shows that by intervening with the overload protection component 7 and the anti-shake component 9 before the female and male sockets are energized, the contact process between the resistance wire 6 and the electrode 3 is lengthened, thereby effectively avoiding the problem of loose connection.
[0044] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.
Claims
1. A female connector for a car cigarette lighter, comprising a base (1), characterized in that: An interface (11) is provided on one side of the bottom seat (1), and a straight rod (2) is inserted into the other side of the bottom seat (1). An insulating block (4) is fixedly connected to the end face of the straight rod (2). A power-conducting post (5) is adapted to be installed at one end of the insulating block (4). An electrode (3) is snapped into the side of the power-conducting post (5). A resistance wire (6) is embedded in the end face of the electrode (3). The resistance wire (6) is installed inside the cavity of the straight rod (2). The resistance wire (6) is equipped with an overload protection component (7), which is used to quickly detach the resistance wire (6) from the electrode (3) when it is tilted. The straight rod (2) is equipped with an alignment component (8), which is used to place the resistance wire (6) at the center of the insulating block (4).
2. The automotive cigarette lighter socket according to claim 1, characterized in that, The overload protection component (7) includes a straight spring (71) fixedly connected to the end face of the resistance wire (6). A right-angle block (72) is fitted on the outer surface of the straight spring (71). Two sliding grooves (73) are opened on the surface of the insulating block (4). The inner groove surface of the sliding groove (73) is slidably connected to the right-angle block (72).
3. The automotive cigarette lighter socket according to claim 2, characterized in that, The outer side of the straight spring (71) is coated with an antistatic layer, and the center of the straight spring (71) is aligned with the center of the resistance wire (6).
4. The automotive cigarette lighter socket according to claim 1, characterized in that, The alignment component (8) includes a support block (81), which is fixedly connected to the inner wall of the insulating block (4). A push spring (82) is provided on the inner side of the support block (81), and an abutment ball (83) is fixedly connected to one end of the push spring (82).
5. A female connector for an automotive cigarette lighter according to claim 1, characterized in that, The number of the alignment components (8) is several groups, and the distribution of the several groups of alignment components (8) is a circular array.
6. A female connector for an automotive cigarette lighter according to claim 1, characterized in that, The alignment component (8) is equipped with an anti-sway component (9), which includes an inner sliding column (91) whose top is pressed against the abutting ball (83).
7. A female connector for an automotive cigarette lighter according to claim 6, characterized in that, The outer side of the inner sliding column (91) is slidably connected to an outer ring (92), and the bottom of the outer ring (92) is fixedly connected to a sealing seat (93). The lower surface of the sealing seat (93) is fixedly connected to the resistance wire (6).
8. A female connector for an automotive cigarette lighter according to claim 6, characterized in that, The inner sliding column (91) is provided with a support rod (94) on its surface. A vertical plate (95) is slidably fitted on one side of the support rod (94). The vertical plate (95) has multiple insertion holes (951) which are movably inserted into the support rod (94).