Dry burning prevention sensor
By introducing an insulating design that combines a thermally conductive silicone grease layer and an epoxy resin layer into the anti-dry-burn sensor, and by introducing a ground wire, the problem of insufficient sensor recognition capability is solved, achieving higher recognition accuracy and safety in use.
Patent Information
- Application Number
- CN202521322802.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-26
- Publication Date
- 2026-03-27
- Estimated Expiration
- 2035-06-26
AI Technical Summary
Existing anti-dry-burning sensors have simple structures and are prone to failure to recognize or misrecognition, resulting in insufficient recognition capability and recognition probability.
A dry-burning-proof sensor was designed, comprising a connection terminal, a first sensor housing, a first fixed connection plate, a thermistor, a first connection line, a second connection line, and a third connection line. The insulation effect is enhanced by using a thermally conductive silicone grease layer and an epoxy resin layer, and a ground wire is introduced to improve the recognition capability.
The insulation design of the thermally conductive silicone grease layer and epoxy resin layer ensures that the thermal resistor can accurately sense the temperature, and the introduction of the ground wire improves the sensor's recognition capability and safety.
Smart Images
Figure CN224051466U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a sensor field especially relates to a dry -burning prevention sensor. BACKGROUND
[0002] The existing dry -burning prevention sensor is mainly arranged in the heating equipment such as hot water jug, water heater and milk heater, is used for judging the working condition in the electric appliance when the electric appliance has no water and heats, thereby protecting the electric appliance. But in the prior art, the structure of the dry -burning prevention sensor is relatively simple, and the identification error may occur in the use process, therefore a dry -burning prevention sensor with ground wire and better isolation effect is required, which can improve the identification ability and identification probability of the sensor. SUMMARY
[0003] The utility model discloses a dry -burning prevention sensor with ground wire and better isolation effect can improve the identification ability and identification probability of sensor.
[0004] The utility model provides a dry -burning prevention sensor, including connecting terminal, first sensor shell, first fixed connecting plate, thermal resistance, first connecting wire, second connecting wire and third connecting wire;
[0005] The thermal resistance is arranged in the first sensor shell, and two connecting feet of the thermal resistance are connected with one end of the first connecting wire and the second connecting wire respectively, and the other end of the first connecting wire and the second connecting wire is connected with the connecting terminal;
[0006] The inside bottom of the first sensor shell is filled with a heat-conducting silicone grease layer, and an epoxy resin layer is filled on the heat-conducting silicone grease layer in the first sensor shell, and the thermal resistance is partially arranged in the heat-conducting silicone grease layer, and the thermal resistance is partially arranged in the epoxy resin layer.
[0007] The first fixed connecting plate is fixedly connected with the first sensor shell, the third connecting wire is a ground wire, one end of the third connecting wire is connected with the first fixed connecting plate, and the other end of the third connecting wire is connected with the connecting terminal.
[0008] Preferably, the first connecting wire and the second connecting wire are live wire and neutral wire respectively.
[0009] Preferably, a second sensor shell and a second fixed connecting plate are further included, the second fixed connecting plate is provided with a second fixed connecting plate first connecting hole and a second fixed connecting plate second connecting hole, the second fixed connecting plate is fixedly connected with the second sensor shell through the second fixed connecting plate first connecting hole, and the second sensor shell is fixedly connected with an external structure through the second fixed connecting plate second connecting hole.
[0010] Preferably, a fourth connecting line is further included, the fourth connecting line is a ground wire, one end of the fourth connecting line is connected with the second fixed connecting plate, and the other end of the fourth connecting line is connected with the connecting terminal.
[0011] Preferably, the first sensor shell and the second sensor shell are further sleeved with silica gel tubes outside.
[0012] Preferably, the first connecting line, the second connecting line and the third connecting line are provided with heat shrink tubes close to the first sensor shell, and the heat shrink tubes are used for arranging and fixing the lines.
[0013] The anti-dry burning sensor has the following beneficial effects:
[0014] 1. The heat-conducting silica gel grease layer and the epoxy resin layer arranged in the first sensor shell can make the thermal resistance perceive the temperature outside the first sensor shell under internal insulation, thereby guaranteeing the identification ability and identification probability of the sensor.
[0015] 2. The ground wire can protect the sensor, the electrical appliance and the user, and improve the use safety of the product. DRAWINGS
[0016] Figure 1 It is a structural schematic view of the anti-dry burning sensor.
[0017] Reference signs in the drawing: 1, first sensor shell; 2, second sensor shell; 3, first fixed connecting plate; 4, second fixed connecting plate; 5, thermal resistance; 6, first connecting line; 7, second connecting line; 8, third connecting line; 9, fourth connecting line; 10, connecting terminal; 11, heat-conducting silica gel grease layer; 12, epoxy resin layer; 13, silica gel tube; 14, heat shrink tube.
[0018] The implementation, functional features and advantages of the anti-dry burning sensor will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION
[0019] It should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application.
[0020] REFERENCE Figure 1An embodiment of the dry-burn prevention sensor is provided in the utility model,
[0021] A dry-burn prevention sensor, comprising a connecting terminal 10, a first sensor shell 1, a second sensor shell 2, a first fixed connecting plate 3, a second fixed connecting plate 4, a thermal resistance 5, a first connecting wire 6, a second connecting wire 7, a third connecting wire 8, a fourth connecting wire 9, a silica gel pipe 13 and a heat shrink tube 14.
[0022] The first fixed connecting plate 3 is fixedly connected with the first sensor shell 1 through the first fixed connecting plate first connecting hole, and the first sensor shell 1 is fixedly connected with an external structure through the first fixed connecting plate second connecting hole.
[0023] The first sensor shell 1 is filled with a heat-conducting silica gel grease layer 11 on the inner bottom side, and an epoxy resin layer 12 is arranged on the heat-conducting silica gel grease layer 11, the thermal resistance 5 is arranged in the heat-conducting silica gel grease layer 11 on the front side, and the thermal resistance 5 is arranged in the epoxy resin layer 12 on the rear side.
[0024] The second fixed connecting plate 4 is fixedly connected with the second sensor shell 2 through the second fixed connecting plate first connecting hole, and the second sensor shell 2 is fixedly connected with an external structure through the second fixed connecting plate second connecting hole.
[0025] The first sensor shell 1 and the second sensor shell 2 are further sleeved with the silica gel pipe 13, and the first connecting wire 6, the second connecting wire 7 and the third connecting wire 8 are provided with the heat shrink tube 13 close to the first sensor shell 1, and the heat shrink tube 14 is used to arrange and fix the wires.
[0026] The first sensor shell 1 is arranged in an electric appliance, and whether the electric appliance is dry-burned is detected through the first sensor shell 1.
[0027] The above merely describes preferred embodiments of the present application, and is not intended to limit the patent scope of the present application, and any equivalent structural transformation or direct or indirect application in other related technical fields based on the content of the present application specification and drawings is also included in the patent protection scope of the present application.
Claims
1. A dry-burn prevention sensor, characterized in that, comprising a connection terminal, a first sensor shell, a first fixed connection plate, a thermal resistance, a first connecting line, a second connecting line and a third connecting line; the thermal resistance is arranged in the first sensor shell, and two connecting pins of the thermal resistance are respectively connected with one end of the first connecting line and the second connecting line, and the other end of the first connecting line and the second connecting line is connected with the connection terminal; a heat-conducting silicone grease layer is filled and arranged at the inside bottom of the first sensor shell, an epoxy resin layer is filled and arranged on the heat-conducting silicone grease layer in the first sensor shell, the thermal resistance is partially arranged in the heat-conducting silicone grease layer, and the thermal resistance is partially arranged in the epoxy resin layer; the first fixed connection plate is fixedly connected with the first sensor shell, the third connecting line is a ground wire, one end of the third connecting line is connected with the first fixed connection plate, and the other end of the third connecting line is connected with the connection terminal.
2. The anti-burnout sensor of claim 1, wherein, the first connecting line and the second connecting line are respectively a fire wire and a zero wire.
3. The anti-burnout sensor of claim 1, wherein, further comprising a second sensor shell and a second fixed connection plate, the second fixed connection plate is provided with a second fixed connection plate first connecting hole and a second fixed connection plate second connecting hole, the second fixed connection plate is fixedly connected with the second sensor shell through the second fixed connection plate first connecting hole, and the second sensor shell is fixedly connected with an external structure through the second fixed connection plate second connecting hole.
4. The anti-burnout sensor of claim 3, wherein, further comprising a fourth connecting line, the fourth connecting line is a ground wire, one end of the fourth connecting line is connected with the second fixed connection plate, and the other end of the fourth connecting line is connected with the connection terminal.
5. The anti-burnout sensor of claim 3, wherein, a silicone tube is further sleeved outside the first sensor shell and the second sensor shell.
6. The anti-burnout sensor of claim 3, wherein, the first connecting line, the second connecting line and the third connecting line are provided with heat-shrink tubes close to the first sensor shell, and the heat-shrink tubes are used to arrange and fix the lines.