Electric power automation equipment temperature measuring device

Abstract

The utility model relates to the technical field of electrical equipment temperature measurement, in particular to a temperature measuring device for electric power automation equipment, which comprises a heat preservation box, a box door is hinged on the heat preservation box, a first separation net and a second separation net are fixedly connected on the inner wall and the outer wall of the heat preservation box respectively, and a temperature sensing assembly is arranged in the first separation net and the second separation net together. The temperature sensing assembly comprises a power source, a first resistor, a second resistor, an incandescent lamp and a wire, the power source, the first resistor, the second resistor and the incandescent lamp are all electrically connected through the wire, and an early warning assembly is arranged in the heat preservation box. The light sensor can receive light emitted by the incandescent lamp, when the illumination intensity is too high, a signal can be sent out to enable the buzzer to give an alarm, and therefore when the mixing degree difference between the temperature in the heat preservation box and the outside is large, namely the temperature rise is large, the buzzer can give an alarm.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature measurement of electrical equipment, in particular to a temperature measurement device for electric power automation equipment. Background Art

[0002] Temperature rise refers to the temperature of each component in electronic and electrical equipment that is higher than the ambient temperature. Usually, electronic and electrical equipment should not work under extremely high or low temperature conditions. However, in fact, temperature rise is also an important factor affecting the operation of equipment. When the temperature rise value is large, the operation of the equipment under this condition will reduce the working effect and life. Therefore, it is required that the temperature inside the equipment and the external temperature have a small difference.

[0003] Existing temperature measuring devices for electrical equipment can usually only detect the temperature on the surface of the equipment, thus ignoring the temperature rise condition. Therefore, a new type of temperature measuring device is needed to provide an early warning when the temperature rise value is large. Utility Model Content

[0004] In order to solve the above technical problems, the utility model proposes a temperature measuring device for electric power automation equipment, which can monitor the temperature difference between the equipment and the environment, that is, the temperature rise, so as to issue an early warning when the temperature rise value is large, thereby avoiding the impact of the large temperature rise value on the equipment.

[0005] The technical solution to achieve the purpose of the utility model is: a temperature measuring device for electric power automation equipment, including an insulated box, a box door hinged on the insulated box, a first partition net and a second partition net fixedly connected to the inner wall and outer wall of the insulated box respectively, a temperature sensing component is commonly arranged inside the first partition net and the second partition net, the temperature sensing component includes a power supply, a first resistor, a second resistor, an incandescent lamp and a wire, the power supply, the first resistor, the second resistor and the incandescent lamp are electrically connected through the wire, and an early warning component is arranged inside the insulated box.

[0006] Preferably, the first resistor is located inside the first partition mesh, and the second resistor is located inside the second partition mesh.

[0007] Preferably, the early warning component includes a shell and a light sensor, the shell is fixedly connected to the inner wall of the incubator, and the light sensor is fixedly connected to the inside of the shell.

[0008] Preferably, the warning component also includes a buzzer, which is fixedly connected to the outer wall of the incubator, and the buzzer is electrically connected to the light sensor.

[0009] Preferably, the shell is made of light-shielding material, and the incandescent lamp is located inside the shell.

[0010] Preferably, the first resistor and the second resistor are both temperature-sensitive resistors, and the first resistor and the second resistor are located inside and outside the thermal insulation box, respectively.

[0011] Compared with the prior art, the utility model has the following significant advantages:

[0012] First: In the utility model, the power supply is connected to the external circuit, and the power supply can supply power to the incandescent lamp to make the incandescent lamp glow. Since the first resistor and the second resistor are connected in series in the circuit where the incandescent lamp is located, the greater the sum of the resistance values ​​of the first resistor and the second resistor, the smaller the current value flowing through the incandescent lamp, and the lower the brightness of the incandescent lamp, and vice versa.

[0013] Second: In the utility model, the first resistor and the second resistor are both temperature-sensitive resistors, wherein the higher the temperature of the environment in which the first resistor is located, the smaller its resistance value, and the lower the temperature of the environment in which the second resistor is located, the smaller its resistance value. The equipment will generate heat when it is running, so the temperature inside the incubator must be higher than the outside temperature, so the ambient temperature of the first resistor must be higher. Therefore, when the temperature inside the incubator is higher and the outside temperature is lower, that is, the temperature rise value is larger, the resistance values ​​of the first resistor and the second resistor are smaller, and the brightness of the incandescent lamp is greater. The light sensor can receive the light emitted by the incandescent lamp. When the light intensity is too high, it can send a signal to make the buzzer alarm. Therefore, when the temperature inside the incubator is significantly different from the outside temperature, that is, when the temperature rise is large, the buzzer can alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional view of the internal structure of the utility model;

[0017] Figure 3 This utility model Figure 2 An enlarged view of the structure of part A is shown;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the temperature sensing component in the utility model.

[0019] Description of reference numerals:

[0020] 1. Insulated box; 2. Box door; 3. First partition net; 4. Second partition net; 5. Temperature sensing component; 51. Power supply; 52. First resistor; 53. Second resistor; 54. Incandescent lamp; 55. Wire; 6. Early warning component; 61. Casing; 62. Light sensor; 63. Buzzer. DETAILED DESCRIPTION

[0021] The utility model is described in detail below, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides a temperature measuring device for electric power automation equipment through improvement. The technical solution of the utility model is:

[0023] like Figure 1-Figure 4 As shown, a temperature measuring device for electric power automation equipment includes an insulated box 1, a box door 2 is hinged on the insulated box 1, a first partition net 3 and a second partition net 4 are fixedly connected to the inner wall and the outer wall of the insulated box 1 respectively, a temperature sensing component 5 is commonly arranged inside the first partition net 3 and the second partition net 4, the temperature sensing component 5 includes a power supply 51, a first resistor 52, a second resistor 53, an incandescent lamp 54 and a wire 55, the power supply 51, the first resistor 52, the second resistor 53 and the incandescent lamp 54 are all electrically connected through the wire 55, an early warning component 6 is arranged inside the insulated box 1, a tungsten filament is arranged inside the incandescent lamp 54, the tungsten filament sublimates and emits light when current passes through, the greater the current, the greater the brightness, and vice versa, the smaller the brightness, and the current size is determined by the first resistor 52 and the second resistor 53.

[0024] Furthermore, the first resistor 52 is located inside the first partition net 3, and the second resistor 53 is located inside the second partition net 4. The meshes on the first partition net 3 and the second partition net 4 allow the first resistor 52 and the second resistor 53 to be protected while being able to sense the temperatures inside and outside the insulated box 1 respectively.

[0025] Furthermore, the early warning component 6 includes a shell 61 and a light sensor 62. The shell 61 is fixedly connected to the inner wall of the incubator 1, and the light sensor 62 is fixedly connected to the inside of the shell 61. There is actually a photoresistor in the light sensor 62, so it will send a signal when the light intensity of the incandescent lamp 54 is too high.

[0026] Furthermore, the early warning component 6 also includes a buzzer 63, which is fixedly connected to the outer wall of the incubator 1. The buzzer 63 is electrically connected to the light sensor 62. When the light sensor 62 receives strong light, it will send a signal to make the buzzer 63 sound, thereby providing an alarm when the temperature rises significantly.

[0027] Furthermore, the housing 61 is made of a light-shielding material, and the incandescent lamp 54 is located inside the housing 61 . The light-shielding effect of the housing 61 enables all the light received by the light sensor 62 to come from the incandescent lamp 54 .

[0028] Furthermore, the first resistor 52 and the second resistor 53 are both temperature-sensitive resistors, and the first resistor 52 and the second resistor 53 are respectively located inside and outside the thermal insulation box 1. The first resistor 52 and the second resistor 53 have opposite characteristics. The first resistor 52 is a resistor whose resistance decreases as the temperature increases, and the second resistor 53 is a resistor whose resistance decreases as the temperature decreases.

[0029] The specific working method is: firstly, put the device into the heat preservation box 1, close the box door 2, connect the power supply 51 to the external circuit, the power supply 51 can supply power to the incandescent lamp 54, so that the incandescent lamp 54 emits light, and because the first resistor 52 and the second resistor 53 are connected in series in the circuit where the incandescent lamp 54 is located, the greater the sum of the resistance values ​​of the first resistor 52 and the second resistor 53, the smaller the current value flowing through the incandescent lamp 54, and the lower the brightness of the incandescent lamp 54, and vice versa, the higher the brightness of the incandescent lamp 54, the first resistor 52 and the second resistor 53 are both temperature-sensitive resistors, wherein the higher the temperature of the environment where the first resistor 52 is located, the smaller its resistance value, and the second resistor 53 The lower the temperature of the environment, the smaller its resistance value. The equipment will generate heat when running, so the temperature inside the incubator 1 will definitely be higher than the outside temperature. Therefore, the ambient temperature of the first resistor 52 must be higher. Therefore, when the temperature inside the incubator 1 is higher and the outside temperature is lower, that is, the temperature rise value is larger, the resistance values ​​of the first resistor 52 and the second resistor 53 are smaller, and the brightness of the incandescent lamp 54 is greater. The light sensor 62 can receive the light emitted by the incandescent lamp 54. When the light intensity is too high, a signal can be sent to make the buzzer 63 alarm. Therefore, when the temperature inside the incubator 1 is significantly different from the outside temperature, that is, when the temperature rise is large, the buzzer 63 can alarm.

[0030] The technical means disclosed in the utility model are not limited to the technical means disclosed in the above technical means, but also include technical solutions composed of equivalent replacement of the above technical features. Matters not covered in the utility model belong to the common knowledge of those skilled in the art.

Claims

1. A temperature measuring device for electric power automation equipment, comprising a heat preservation box (1), wherein a door (2) is hingedly connected to the heat preservation box (1), characterized in that: The first partition net (3) and the second partition net (4) are fixedly connected to the inner wall and the outer wall of the thermal insulation box (1), respectively; a temperature sensing component (5) is arranged inside the first partition net (3) and the second partition net (4); the temperature sensing component (5) comprises a power supply (51), a first resistor (52), a second resistor (53), an incandescent lamp (54) and a wire (55); the power supply (51), the first resistor (52), the second resistor (53) and the incandescent lamp (54) are all electrically connected via the wire (55); and an early warning component (6) is arranged inside the thermal insulation box (1).

2. The temperature measuring device for electric power automation equipment according to claim 1, characterized in that: The first resistor (52) is located inside the first partition net (3), and the second resistor (53) is located inside the second partition net (4).

3. The temperature measuring device for electric power automation equipment according to claim 1, characterized in that: The early warning component (6) comprises a shell (61) and a light sensor (62); the shell (61) is fixedly connected to the inner wall of the heat preservation box (1); and the light sensor (62) is fixedly connected to the inside of the shell (61).

4. The temperature measuring device for electric power automation equipment according to claim 3, characterized in that: The early warning component (6) also includes a buzzer (63), which is fixedly connected to the outer wall of the thermal insulation box (1), and the buzzer (63) is electrically connected to the light sensor (62).

5. The temperature measuring device for electric power automation equipment according to claim 3, characterized in that: The housing (61) is made of a light-shielding material, and the incandescent lamp (54) is located inside the housing (61).

6. The temperature measuring device for electric power automation equipment according to claim 1, characterized in that: The first resistor (52) and the second resistor (53) are both temperature-sensitive resistors, and the first resistor (52) and the second resistor (53) are located inside and outside the thermal insulation box (1), respectively.

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