Buzzer sounding structure for wrist type near-electricity early warning device
By amplifying the sound using the cavity and sound outlet in the wrist-type near-electric warning device and canceling the vibration module, the problems of low volume and short battery life in the existing technology are solved, and effective early warning and battery life are achieved in noisy environments Extended effect.
Patent Information
- Application Number
- CN202323342636.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-08
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2033-12-08
AI Technical Summary
The existing wrist-type high-voltage warning device is installed in the waterproof housing and has a low external sound. It is difficult to hear alarm sounds especially in noisy environments. The vibration function consumes a lot of power, resulting in short battery life and cannot be provided. Continuous early warning function.
Design a buzzer sounding structure for wrist-type near-electric early warning device. By setting a sound outlet hole on the lower case to connect to the cavity, amplify the sound using resonance, cancel the vibration module, extend the battery life, and add the sound outlet hole to the sound outlet Drainage holes prevent water from entering.
Increases volume, reduces error rate, significantly extends battery life, and ensures that early warning functions can be effectively provided in noisy environments.
Smart Images
Figure CN222354553U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to an electric high-voltage safety device, in particular to a near-electricity early warning device, specifically to a buzzer sounding structure for a wrist-type near-electricity early warning device. Background Art
[0002] The near-electricity warning device is a safety auxiliary tool that can be installed in a safety helmet or used in a portable manner. It is mainly suitable for line construction workers in power, telecommunications, Unicom, petrochemicals, railways, etc. When the alarm is close to a strong power source or a high-voltage power source, the alarm will emit a continuous alarm sound to remind the construction workers to pay attention to safety.
[0003] Traditional near-electricity warning devices are mostly installed in the safety helmets of operators and are widely used in power maintenance sites. When the equipment is energized, the near-electricity warning device can send a warning signal when the operator crosses the safe distance to remind the operator to retreat to a safe area.
[0004] In recent years, in order to improve the safety level, prevent the near-electricity warning device in the safety helmet from failing during work and meet the needs of some applications, people have invented a new wrist-type early warning alarm, such as Chinese patent 2020214992056, which discloses a wrist-type high-voltage early warning device. The wrist-type near-electricity alarm product is also called: near-electricity alarm wrist, near-electricity alarm, electrician wrist, anti-electric shock warning wrist, wrist-type static electricity alarm, static electricity alarm, static electricity alarm wrist, etc.
[0005] The wrist-type electric proximity alarm has a high voltage anti-electric shock pre-alarm function: when you wear the wrist-type electric proximity alarm and enter the charged area (or are about to enter the charged object or charged pole) to a certain distance, the wrist-type electric proximity alarm can emit a continuous alarm sound to remind you of the danger of the charged object. When you hear the alarm sound, you should quickly move away from the high voltage charged area until the wrist-type electric proximity alarm stops sounding. This anti-electric shock pre-alarm function (also known as: electric proximity alarm function) of the wrist-type electric proximity alarm can prevent electric shock casualties caused by illusions and mistakes.
[0006] The existing wrist-mounted high-voltage warning device has a buzzer installed in a waterproof shell, so the external volume is relatively low, especially in a noisy environment where it is difficult for users to hear the alarm sound. Therefore, most of these near-electric warning devices need to be assisted by a vibration function. The vibration of the wrist consumes a lot of electricity, so the battery life is very short. Sometimes the battery even runs out of power during use and cannot provide the necessary warning function. Therefore, using the buzzer to sound externally and waterproof is a dilemma and needs to be improved. Utility Model Content
[0007] The utility model aims to design a buzzer sounding structure for a wrist-type near-electricity warning device in view of the problems of large vibration power consumption and small external sound in the existing wristwatch-type near-electricity warning device.
[0008] The technical solution of the utility model is:
[0009] A buzzer sounding structure for a wrist-mounted near-electric warning device comprises an upper shell 1, a lower shell 2 and a circuit board 3 installed between the upper shell 1 and the lower shell 2, a patch type buzzer 4 is arranged on the circuit board 3, and the characteristic is that: a sound outlet hole 5 is opened on the lower shell 2 at a position relative to the sounding hole of the patch type buzzer 4 installed on the circuit board 3, and the sound outlet hole 5 is connected with a cavity 10 composed of the upper shell 1, the lower shell 2, a surrounding plate 9 and a battery mounting ring 6. The alarm sound emitted by the patch type buzzer 4 first enters the cavity 10 to resonate, the sound is amplified, and then emits a sufficiently loud sound through the sound outlet hole 5, thereby eliminating the vibration module and realizing energy saving.
[0010] The lower shell 2 is provided with a battery mounting ring 6, and a drainage hole 7 is provided on the outer side of the battery mounting ring 6. The drainage hole and the sound outlet hole 5 are on the same inclined plane to prevent water from overflowing into the installation space of the circuit board 3 or the battery to cause an electrical short circuit after water enters the sound outlet hole 5.
[0011] Beneficial effects of the utility model:
[0012] The utility model can be used in conjunction with a head-mounted safety helmet near-electricity early warning device or can be used alone, thereby improving the early warning mechanism, reducing the error rate, and improving the safety level.
[0013] The utility model improves the volume through the cavity and the sound-emitting hole, cancels the vibration module, and greatly prolongs the battery life. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 The utility model is a schematic diagram of the three-dimensional exploded structure of the wrist-type near-electricity warning device.
[0015] Figure 2 The utility model is a schematic diagram of the exploded structure of the lower shell and the circuit board of the wrist-type near-electricity warning device. DETAILED DESCRIPTION
[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0017] like Figure 1 , 2 shown.
[0018] A buzzer sounding structure for a wrist-mounted near-electricity warning device comprises an upper shell 1, a lower shell 2 and a circuit board 3 installed between the upper shell 1 and the lower shell 2. Figure 1 As shown, a SMD buzzer 4 is provided on the circuit board 3. Figure 2 The lower shell 2 is provided with a sound hole 5 at a position relative to the sound hole of the patch buzzer 4 installed on the circuit board 3. The sound hole 5 is connected to the cavity 10 composed of the upper shell 1, the lower shell 2, the enclosure 9 and the battery installation ring 6. The alarm sound emitted by the patch buzzer 4 first enters the cavity 10 to resonate, the sound is amplified, and then emits a sufficiently loud sound through the sound hole 5, thereby eliminating the vibration module and realizing energy saving. In specific implementation, in order to prevent rainwater from entering the lower shell from the sound hole 5 and affecting the normal operation of the circuit when used on rainy days, a drainage hole 7 connected to the cavity 10 can be added at the lower part of the inclined surface where the sound hole 5 is located, such as Figure 2 As shown, rainwater entering from the sound outlet 5 will only flow into the discharge hole 7 along the inclined surface and will not affect the circuit board or the battery 8. There is a battery mounting ring 6 around the battery to prevent rainwater from entering (such as Figure 2 ), if you find that the buzzer sound becomes smaller due to water inflow during use, you can shake the excess water in the sound outlet 8 out by shaking your hands, and the sound can return to normal.
[0019] The utility model eliminates the vibration module with large power consumption, and ensures that the sound emitted by the buzzer can meet the use requirements. Therefore, the power saving effect is obvious, and the service life of the single-chip battery is more than ten times that of the early warning device with the vibration module.
[0020] The parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art.
Claims
1. A buzzer sounding structure for a wrist-mounted near-electricity warning device, comprising an upper shell (1), a lower shell (2), and a circuit board (3) mounted between the upper shell (1) and the lower shell (2), wherein a patch type buzzer (4) is provided on the circuit board (3), and wherein: A sound outlet hole (5) is provided on the lower shell (2) at a position opposite to the sound hole of the patch type buzzer (4) mounted on the circuit board (3); the sound outlet hole (5) is connected to a cavity (10) formed by the upper shell (1), the lower shell (2), the surrounding plate (9) and the battery mounting ring (6); the alarm sound emitted by the patch type buzzer (4) first enters the cavity (10) to generate resonance, and then emits a sufficiently loud sound through the sound outlet hole (5), thereby eliminating the need for a vibration module and achieving energy saving.
2. The buzzer sounding structure for the wrist-mounted near-electricity warning device according to claim 1 is characterized in that: The lower shell (2) is provided with a battery mounting ring (6), and a drainage hole (7) is provided on the outer side of the battery mounting ring (6). The drainage hole and the sound outlet hole (5) are on the same inclined plane to prevent water from entering the sound outlet hole (5) and overflowing into the mounting space of the circuit board (3) or the battery to cause an electrical short circuit.