Multi-channel transformer temperature sensor environment temperature testing device

Abstract

The utility model belongs to the technical field of testing devices, and particularly discloses a multichannel transformer temperature sensor environment temperature testing device which comprises an environment temperature simulation drying oven, and a plurality of sensor cable through holes are formed in the side wall of the environment temperature simulation drying oven. The sensor cable through hole is used for enabling a sensor cable to enter the interior of the environment temperature simulation drying oven from the exterior of the environment temperature simulation drying oven for environment temperature testing, a cable limiting perforating piece is installed on the sensor cable through hole, and perforating holes matched with different sensor cable diameters are formed in the cable limiting perforating piece. According to the utility model, the sensor cable through hole is arranged on the side wall of the environment temperature simulation oven, and the cable limiting perforation piece is arranged to fix the position of the sensor cable, so that the sensor cable can be subjected to independent environment temperature test, whether the cable is influenced by the environment temperature or not is detected, and the test accuracy is improved. And the accuracy of the temperature sensor actually applied to high-temperature detection of the transformer is improved.

Description

Technical Field

[0001] This utility model relates to the field of testing device technology, and in particular to an ambient temperature testing device for a multi-channel transformer temperature sensor. Background Technology

[0002] Currently, temperature sensors are commonly used to detect transformer temperature. However, the ambient temperature around a transformer is typically over 60 degrees Celsius during operation. When the temperature sensor probe detects the transformer's operating temperature, the sensor cable is also exposed to this high-temperature environment. Therefore, it is necessary to conduct ambient temperature tests on the temperature sensor and its cable to determine if they are affected by the high-temperature environment, ensuring the accuracy of subsequent on-site transformer temperature data.

[0003] However, most current environmental temperature testing devices place the temperature sensor and its cable together in the oven, which makes it impossible to distinguish whether the temperature sensor probe and cable will be affected by the high temperature environment. Utility Model Content

[0004] The purpose of this invention is to solve the technical problems existing in the background art. To this end, a multi-channel transformer temperature sensor ambient temperature testing device is provided.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A multi-channel transformer temperature sensor ambient temperature testing device includes an ambient temperature simulation oven. The side wall of the ambient temperature simulation oven has multiple sensor cable through holes, allowing the sensor cables to enter the interior from the outside of the ambient temperature simulation oven for ambient temperature testing. Cable limiting through holes are installed on the sensor cable through holes, and the cable limiting through holes have through holes adapted to different sensor cable diameters.

[0007] The following is a further defined technical solution of this utility model: the cable limiting through-hole component is fixedly installed on the outer wall of the ambient temperature simulation oven by screws.

[0008] The following is a further defined technical solution of this utility model: the perforation on the cable limiting perforator is set as a circular hole.

[0009] The following is a further technical solution of this utility model: the perforation on the cable limiting perforator is set as an 8-shaped hole.

[0010] The following is a further defined technical solution of this utility model: the ambient temperature simulation oven includes a door, and a transparent glass observation window is fixedly installed on the door.

[0011] Compared with the prior art, the present invention has the following technical effects:

[0012] This invention provides a sensor cable through-hole on the side wall of an ambient temperature simulation oven, and a cable limiting through-hole to fix the position of the sensor cable. This allows for individual ambient temperature testing of the sensor cable, detecting whether the cable is affected by the ambient temperature, and improving the accuracy of the temperature sensor in the practical application of high-temperature transformer detection.

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in 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.

[0015] Figure 1 This is a simplified structural diagram of the ambient temperature simulation oven in this utility model;

[0016] Figure 2 This is a simplified schematic diagram of the structure of the ambient temperature simulation oven with multiple sensor cables placed in Embodiment 1 of this utility model;

[0017] Figure 3 This is a simplified schematic diagram of the cable limiting perforation component on the side wall of the oven in Embodiment 1 of this utility model, wherein... Figure 3 (a) is a simplified schematic diagram of a cable limiting and perforating component with a large-diameter circular hole on the side wall of an oven. Figure 3 (b) is a simplified schematic diagram of the cable limiting perforator with a small-diameter circular hole on the side wall of the oven;

[0018] Figure 4 This is a simplified schematic diagram of the structure of the ambient temperature simulation oven with multiple sensor cables placed in Embodiment 2 of this utility model;

[0019] Figure 5 This is a simplified schematic diagram of the cable limiting perforation component on the side wall of the oven in Embodiment 2 of this utility model.

[0020] Figure labels: 1. Ambient temperature simulation oven; 2. Sensor cable through hole; 3. Cable limiting through hole; 4. Circular hole; 5. Figure-8 shaped hole; 6. Chamber door; 7. Transparent glass observation window; 8. Control panel; 9. Start button; 10. Stop button. Detailed Implementation

[0021] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0023] Example 1

[0024] like Figure 1 , 2 As shown in Figure 3, this embodiment provides a multi-channel transformer temperature sensor ambient temperature testing device, which mainly consists of an ambient temperature simulation oven 1 with multiple sensor cable through holes 2, a cable limiting through hole 3 with a circular hole 4, and sensor cables A, B, C, etc.

[0025] The ambient temperature simulation oven 1 includes a door 6, on which a transparent glass observation window 7 is fixedly installed, allowing real-time observation of the internal testing conditions. A control panel 8, a start button 9, and a stop button 10 are located on the right side of the front of the ambient temperature simulation oven 1. The control panel 8 controls the real-time operation of the oven, the start button 9 starts the oven's operation, and the stop button 10 stops the oven's operation. It should be noted that the ambient temperature simulation oven 1 without a sensor cable through-hole 2 is existing technology; therefore, this embodiment will not describe the specific working process of the ambient temperature simulation oven 1 in detail.

[0026] The diameter of the multiple sensor cable through holes 2 on the side wall of the ambient temperature simulation oven 1 remains constant, and the sensor cable through holes 2 are circular holes 4. The cable limiting through-hole piece 3 with the circular hole 4 is fixedly installed on the outer side wall of the ambient temperature simulation oven 1 by screws, and corresponds to the sensor cable through hole 2.

[0027] Therefore, when the outer diameter of the sensor cable is small, the cable limiting through-hole 3 with a small diameter circular hole 4 is used for position fixation, such as... Figure 3 As shown in (a); when the outer diameter of the sensor cable is large, a cable limiting through-hole component 3 with a large-diameter circular hole 4 is used for position fixation, such as Figure 3 As shown in (b).

[0028] Sensor cables A, B, and C pass through the upper and lower cable limiting holes 3, respectively, so that sensor cables A, B, and C are all in the 60°C high-temperature environment of the ambient temperature simulation oven 1, realizing multi-channel ambient temperature detection. The sensor probe is in the external ambient temperature environment of 28°C of the ambient temperature simulation oven 1. The sensor cables can be tested individually to detect whether the cables are affected by the ambient temperature. If the data detected by sensors A and B is 28°C, and the data detected by sensor C is 45°C and fluctuates continuously, it means that sensor cables A and B are of qualified quality and are not affected by the ambient temperature, and can be used in transformer temperature detection. However, sensor cable C is of unqualified quality and is easily affected by the ambient temperature, and cannot be used for transformer temperature detection.

[0029] Example 2

[0030] Based on the structure of Example 1, keeping other structures unchanged, especially the diameter of the multiple sensor cable through holes 2 on the side wall of the ambient temperature simulation oven 1, only the shape of the cable limiting perforation 3 is changed, such as... Figure 1 , 4 As shown in Figure 5, specifically: the perforation on the cable limiting perforator 3 is set as a figure-eight shaped hole 5.

[0031] In this case, the sensor cable through-hole 2 on the side wall of the ambient temperature simulation oven 1 is large enough to accommodate two or more sensor cables. Then, sensor cables A, B, C, and D can be stacked and placed inside the ambient temperature simulation oven 1 through only one cable limiting through-hole 3, without having to be threaded through two cable limiting through-holes 3 as in Example 1.

[0032] Therefore, in Embodiment 1, sensor cables A, B, and C can only be inserted by opening the oven door 6 and then looping them from the outside in and back out before the ambient temperature simulation oven 1 performs ambient temperature detection. In Embodiment 2, sensor cables A, B, C, and D can be inserted into the ambient temperature simulation oven 1 by stacking them together during the ambient temperature detection process. It should be noted that if there are any unused sensor cable through holes 2 during the ambient temperature detection process, they should be blocked.

[0033] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model using the disclosed methods and techniques, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. Therefore, all equivalent changes made based on the shape, structure, and principle of this utility model without departing from its technical solution should be covered within the protection scope of this utility model.

Claims

1. A multi-channel transformer temperature sensor ambient temperature testing device, characterized in that, The device includes an ambient temperature simulation oven (1), which has multiple sensor cable through holes (2) on its side wall for sensor cables to enter the ambient temperature test from the outside of the oven. The sensor cable through holes (2) are equipped with cable limiting through holes (3), which have through holes adapted to different sensor cable diameters.

2. The multi-channel transformer temperature sensor ambient temperature testing device as described in claim 1, characterized in that, The cable limiting perforator (3) is fixedly installed on the outer wall of the ambient temperature simulation oven (1) by screws.

3. The multi-channel transformer temperature sensor ambient temperature testing device as described in claim 2, characterized in that, The perforation on the cable limiting perforator (3) is a circular hole (4).

4. The multi-channel transformer temperature sensor ambient temperature testing device as described in claim 2, characterized in that, The perforation on the cable limiting perforator (3) is configured as a figure-eight shaped hole (5).

5. The multi-channel transformer temperature sensor ambient temperature testing device as described in claim 1, characterized in that, The ambient temperature simulation oven (1) includes a door (6), and a transparent glass observation window (7) is fixedly installed on the door (6).

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