Door handle with warning function

Abstract

The utility model relates to a door handle with a warning function, and belongs to the technical field of door handles. The door handle with the warning function comprises a door handle body and a warning mechanism, a mounting cavity is formed in the outer side of the door handle body, and a containing cavity communicating with the mounting cavity is formed in the door handle body; the warning mechanism comprises a connecting socket, the connecting socket is fixedly connected to the interior of the containing cavity, the output end of the connecting socket is electrically connected with an LED lamp strip and a relay, one end of the LED lamp strip penetrates into the mounting cavity and is fixedly connected with the mounting cavity, and the output end of the relay is electrically connected with a standby power source. When the external power supply is powered off, the relay switches the contact to the standby power supply, and emergency power supply is provided for the LED lamp strip through the connection socket. Compared with an existing single power supply mode, when a connection line is normal, the LED lamp strip can continuously give an alarm, emergency personnel can conveniently and rapidly position the door handle, and the rescue efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of door handle technology, and in particular to a door handle with an alarm function. Background Technology

[0002] Door handles come in traditional pull-out and concealed types, balancing grip comfort, keyless smart interaction, and emergency mechanical unlocking. Currently, many door handles incorporate low-power LED light strips as a warning feature within the handle structure.

[0003] Currently, a Chinese patent discloses a light-emitting car door handle (authorization announcement number CN216690705U). By turning on the switch of the constantly lit LED light strip, the power socket port supplies power to the constantly lit LED light strip, making the side of the car more visible and reminding vehicles on the side to avoid it. By turning on the switch of the flashing LED light strip, the power socket port supplies power to the flashing LED light strip, making the flashing LED light strip flash, thereby increasing the alertness of vehicles on the side and preventing accidents.

[0004] Since the LED light strips mentioned above are all powered by power sockets, this design can ensure that the light strips work normally under normal operating conditions. However, when a vehicle collision causes damage to the power system, the power supply line may experience open circuits or voltage instability, causing the LED warning system to fail. Utility Model Content

[0005] Therefore, it is necessary to provide a door handle with an alarm function to address the problem that existing door handles with alarm functions cannot operate normally when the external power supply is interfered with, thus failing to provide a proper alarm.

[0006] A door handle with an alarm function includes: a door handle and an alarm mechanism, wherein an installation cavity is provided on the outer side of the door handle and a placement cavity communicating with the installation cavity is provided inside the door handle.

[0007] In one embodiment, the warning mechanism includes a connection socket fixedly connected to the interior of the placement cavity. The output end of the connection socket is electrically connected to an LED light strip and a relay. One end of the LED light strip extends through the interior of the mounting cavity and is fixedly connected to the mounting cavity. The output end of the relay is electrically connected to a backup power supply, and the output end of the backup power supply is electrically connected to the LED light strip.

[0008] In one embodiment, the connection socket is electrically connected to a battery charging chip for the backup power supply.

[0009] In one embodiment, the warning mechanism further includes a heat dissipation mechanism comprising a heat-conducting plate embedded in the inner top wall of the door handle, the top of the heat-conducting plate extending into the interior of the placement cavity and fixedly connected to a backup power supply.

[0010] In one embodiment, a buffer plate, which is fixedly connected to a backup power supply, is fixedly connected to the top of the heat-conducting plate, and the cross-sectional shape of the buffer plate is wavy.

[0011] In one embodiment, the top of the buffer plate is fixedly connected to a connecting plate that is fixedly connected to a backup power supply.

[0012] In one embodiment, the heat-conducting plate, the buffer plate, and the connecting plate are integrally molded, and all three are made of copper.

[0013] In one embodiment, a transparent protective plate is embedded inside the mounting cavity, and the transparent protective plate is disposed on the side of the LED light strip facing away from the mounting cavity.

[0014] Beneficial effects

[0015] The aforementioned door handles with alarm functions have a relay that switches to a backup power supply when the external power source fails, providing emergency power to the LED light strip via a connection socket. Compared to the existing single power supply mode, the LED light strip can continuously provide an alarm when the connection line is normal, making it easier for emergency personnel to quickly locate the door handle and speeding up the rescue process.

[0016] When the backup power supply generates heat, the heat is dissipated through the connecting plate, buffer plate, and heat-conducting plate to prevent overheating. The corrugated buffer plate increases the heat dissipation area, and its perforated structure promotes air convection, enhancing heat dissipation. Its elastic deformation can absorb vehicle vibrations, protecting the equipment. The compact layout saves space, simplifies installation, while dispersing heat and being compatible with grounding protection, improving system safety and stability. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0019] Figure 3 This is a partial schematic diagram of the warning mechanism in this utility model;

[0020] Figure 4 This is an exploded view of the heat dissipation mechanism in this utility model.

[0021] Figure label:

[0022] 100. Door handle; 110. Mounting cavity; 120. Placement cavity; 200. Alarm mechanism; 210. Connecting socket; 220. LED light strip; 230. Relay; 240. Backup power supply; 250. Battery charging chip; 260. Heat dissipation mechanism; 261. Heat conduction plate; 262. Buffer plate; 263. Connecting plate; 270. Transparent protective plate. Detailed Implementation

[0023] The following is combined with Figures 1-4 This invention describes a door handle with an alarm function.

[0024] In one embodiment, a door handle with an alarm function includes a door handle 100 and an alarm mechanism 200. The door handle 100 has an installation cavity 110 on its outer side and a placement cavity 120 communicating with the installation cavity 110 on its inner side.

[0025] The warning mechanism 200 includes a connection socket 210, which is fixedly connected to the interior of the placement cavity 120. The output end of the connection socket 210 is electrically connected to an LED light strip 220 and a relay 230. One end of the LED light strip 220 extends into the installation cavity 110 and is fixedly connected to the installation cavity 110. The output end of the relay 230 is electrically connected to a backup power supply 240. The output end of the backup power supply 240 is electrically connected to the LED light strip 220. After installation, the installer needs to electrically connect the input end of the connection socket 210 to the vehicle power supply.

[0026] The connector 210 is electrically connected to the backup power supply 240 and has a battery charging chip 250. The battery charging chip 250 can be an HT3303V protection chip. The HT3303V has an overcharge detection range of 4.25-4.35V ±0.05V and an over-discharge detection threshold of 2.3-2.5V, which can accurately control the battery operating range. Its 3.0V over-discharge release voltage hysteresis characteristic can avoid repeated switching on and off at the voltage critical point, eliminating the risk of oscillation. In addition, with the sampling resistor, it can trigger the overcurrent (≥0.8A) and short circuit protection (±25mV sensitivity) of the HT3303V. With the secondary protection IC, the voltage divider resistor can be adjusted to set the redundant protection threshold. With the temperature sensor, it can provide a triple fault barrier for over-temperature protection. It can cut off abnormal current within 60ms and ensure the reliability of the backup power supply 240 under sudden load.

[0027] A transparent protective plate 270 is embedded inside the mounting cavity 110. The transparent protective plate 270 is located on the side of the LED light strip 220 facing away from the mounting cavity 120. This can prevent external impurities from entering the interior of the mounting cavity 110, thereby reducing the probability of the LED light strip 220 being damaged by external impurities.

[0028] like Figure 2 , Figure 3 and Figure 4 As shown, the alarm mechanism 200 also includes a heat dissipation mechanism 260, which includes a heat-conducting plate 261 embedded in the inner top wall of the door handle 100. The top of the heat-conducting plate 261 extends into the interior of the placement cavity 120 and is fixedly connected to the backup power supply 240. A buffer plate 262, which is fixedly connected to the backup power supply 240, is fixedly connected to the top of the heat-conducting plate 261. The cross-sectional shape of the buffer plate 262 is wavy. A connecting plate 263, which is fixedly connected to the backup power supply 240, is fixedly connected to the top of the buffer plate 262. The heat-conducting plate 261, the buffer plate 262, and the connecting plate 263 are integrally molded and are all made of copper.

[0029] In this embodiment, when the backup power supply 240 heats up, the heat from the backup power supply 240 can be transferred to the outside through the connecting plate 263, the buffer plate 262, and the heat-conducting plate 261, thereby reducing the risk of overheating of the backup power supply 240. Furthermore, the wave-shaped buffer plate 262 increases the heat dissipation area through its wave structure and, together with its hollow design, forms air convection, significantly improving heat dissipation efficiency. Its deformation characteristics can absorb vehicle vibration energy, reducing the risk of equipment damage. The compact design balances performance within a limited space, simplifies the fixing and installation process, disperses heat accumulation, and is compatible with grounding protection, effectively improving system safety and stability.

[0030] Working principle: When the external power supply stops supplying power to the connection socket 210, the coil of the relay 230 is de-energized, and the contacts switch to the backup power supply 240. At this time, the backup power supply 240 provides emergency power to the LED light strip 220 through the connection socket 210. Compared with the existing method of relying solely on external power supply, this allows the LED light strip 220 to continue to provide an external warning, provided that the lines of the connection socket 210, the LED light strip 220, and the backup power supply 240 are unobstructed. This enables emergency personnel to locate the door handle 100 as soon as possible, thus speeding up the rescue of people inside the vehicle through the door handle 100.

[0031] It should be noted that the connector 210, LED strip 220, relay 230, backup power supply 240, battery charging chip 250, sampling resistor, secondary protection IC and temperature sensor mentioned above are all devices with relatively mature existing technology. The specific models can be selected according to actual needs, and will not be elaborated here.

[0032] 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 door handle with an alarm function, characterized in that, include: A door handle (100) has an installation cavity (110) on its outer side and a placement cavity (120) communicating with the installation cavity (110) on its inner side. An alarm mechanism (200) includes a connection socket (210) which is fixedly connected to the interior of a placement cavity (120). The output end of the connection socket (210) is electrically connected to an LED light strip (220) and a relay (230). One end of the LED light strip (220) extends into the interior of a mounting cavity (110) and is fixedly connected to the mounting cavity (110). The output end of the relay (230) is electrically connected to a backup power supply (240), and the output end of the backup power supply (240) is electrically connected to the LED light strip (220).

2. The door handle with alarm function according to claim 1, characterized in that, The connection socket (210) is electrically connected to the backup power supply (240) via a battery charging chip (250).

3. The door handle with alarm function according to claim 1, characterized in that, The warning mechanism (200) also includes a heat dissipation mechanism (260), which includes a heat-conducting plate (261) embedded in the top wall of the door handle (100). The top of the heat-conducting plate (261) extends into the interior of the placement cavity (120) and is fixedly connected to the backup power supply (240).

4. The door handle with alarm function according to claim 3, characterized in that, The top of the heat-conducting plate (261) is fixedly connected to a buffer plate (262) which is fixedly connected to the backup power supply (240). The cross-sectional shape of the buffer plate (262) is wavy.

5. The door handle with alarm function according to claim 4, characterized in that, The top of the buffer plate (262) is fixedly connected to a connecting plate (263) that is fixedly connected to the backup power supply (240).

6. The door handle with alarm function according to claim 5, characterized in that, The heat-conducting plate (261), buffer plate (262) and connecting plate (263) are integrally molded, and the heat-conducting plate (261), buffer plate (262) and connecting plate (263) are all made of copper.

7. The door handle with alarm function according to claim 1, characterized in that, A transparent protective plate (270) is embedded inside the mounting cavity (110), and the transparent protective plate (270) is located on the side of the LED light strip (220) facing away from the placement cavity (120).

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