Wireless temperature measuring plug for ring net cabinet

Abstract

This utility model provides a wireless temperature measuring plug for ring main units, including a plug body, a heat-conducting sleeve, a heat-conducting frame, a temperature sensor, a wireless transmission mechanism, and a power supply. The heat-conducting sleeve, heat-conducting frame, temperature sensor, and power supply are fixed inside the plug body. The heat-conducting frame is fixed to corresponding positions on the heat-conducting sleeve and to the detection end of the temperature sensor. The wireless transmission mechanism is rotatably mounted on the outer surface of the plug body, and is wirelessly connected to the ring main unit's temperature measurement system. The heat-conducting frame design avoids the limitations of single-location temperature measurement, improving the accuracy and comprehensiveness of temperature detection. Furthermore, the wireless transmission mechanism ensures that the wireless transceiver module transmits data to the ring main unit's temperature measurement system in a timely manner, and eliminates the need to consider the antenna orientation during installation.

Description

Technical Field

[0001] This utility model belongs to the field of temperature measuring plug technology, and in particular relates to a wireless temperature measuring plug for ring main units. Background Technology

[0002] Ring main units (RNBs) are key equipment in power distribution networks, primarily used for cable line segmentation, connection, and control and protection of electrical equipment. The operating temperature of their internal switches, connectors, and other components is a crucial indicator of equipment condition. Wireless temperature measuring plugs for RNBs are temperature-measuring devices installed in critical areas (such as cable connectors and switch contacts) within the RNB. Their core function is to monitor the temperature of these areas in real time and transmit the data wirelessly to the RNB temperature monitoring system, thereby providing early warning of overheating faults and ensuring the safe operation of the power grid.

[0003] Currently, existing wireless temperature measuring plugs for ring main units typically consist of core components such as the plug body, a heat-conducting sleeve, a temperature sensor, and a wireless transceiver module. The plug body serves as the basic installation structure, fixing and protecting the internal components. The heat-conducting sleeve directly contacts the measured part (such as the joint surface) inside the ring main unit, responsible for absorbing and conducting temperature. The detection end of the temperature sensor is connected to a specific position on the heat-conducting sleeve, converting the temperature conducted by the sleeve into an electrical signal. The wireless transceiver module connects to the temperature sensor via a data cable, receives the electrical signal, and wirelessly transmits the temperature data to the ring main unit temperature measurement system.

[0004] However, existing wireless temperature sensing plugs for ring main units have the following drawbacks in practical use:

[0005] First, temperature sensors are usually only connected to a single location (mostly the end) of the heat-conducting sleeve, and can only detect the temperature at that local location. However, the temperature distribution of the measured part (such as a long cable joint) inside the ring main unit is often uneven, and there may be a significant temperature difference between the end and the middle (for example, the temperature in the middle is higher than that at the end due to the difference in current density). This single-location detection method is difficult to reflect the overall temperature status of the measured part, and it is easy to misjudge the risk of equipment overheating due to local temperature measurement deviation.

[0006] Secondly, most of the existing wireless transceiver modules are designed for fixed installation, and their antenna orientation cannot be adjusted. However, due to the enclosed space and dense metal components inside the ring main unit, if the antenna orientation of the wireless transceiver module is inconsistent with the direction of the receiving end of the ring main unit temperature measurement system (for example, it is blocked by the metal cabinet or the direction is opposite), it will seriously affect the transmission efficiency of the wireless signal, and may even lead to data delay or loss.

[0007] Therefore, it is essential to invent a wireless temperature measuring plug for ring main units. Utility Model Content

[0008] To address the above problems, this utility model proposes a wireless temperature measuring plug for ring main units. The technical solution used is as follows:

[0009] A wireless temperature measuring plug for a ring main unit includes a plug body, a heat-conducting sleeve, a heat-conducting frame, a temperature sensor, a wireless transmission mechanism, and a power supply. The heat-conducting sleeve is fixed inside one end of the plug body, and the heat-conducting frame, temperature sensor, and power supply are fixed inside the plug body. The heat-conducting end of the heat-conducting frame is fixed to corresponding positions on the heat-conducting sleeve and the detection end of the temperature sensor. The wireless transmission mechanism is rotatably mounted on the outer surface of the plug body, and is wirelessly connected to the ring main unit's temperature measurement system, and is also connected to the temperature sensor signal via a data cable. The power supply is electrically connected to the temperature sensor and the wireless transmission mechanism via a power cable.

[0010] Furthermore, the heat-conducting frame includes a heat-conducting plate, a first heat-conducting column, a second heat-conducting column, and a third heat-conducting column, all of which are fixed inside the plug body. A first heat-conducting column is welded to the center of one side of the heat-conducting plate, with the other end of the first heat-conducting column welded to one end of the heat-conducting sleeve. Several second and third heat-conducting columns are welded to the sides of the heat-conducting plate, with the other ends of each second heat-conducting column welded to the outer surface of the center of the heat-conducting sleeve, and the other ends of each third heat-conducting column welded to the outer surface of the end of the heat-conducting sleeve furthest from the temperature sensor. The outer surface of the heat-conducting plate is fixed to the detection end of the temperature sensor. This arrangement allows the temperature from multiple locations on the heat-conducting sleeve to be transferred to the temperature sensor, thus avoiding the limitations of single-location temperature measurement and improving the accuracy and comprehensiveness of temperature detection.

[0011] Furthermore, the wireless transmission mechanism includes a rotating column, a hinge joint, a hinge plate, and a wireless transceiver module. The rotating column is rotatably connected to the plug body via a damping bearing, and a hinge joint is fixed to one end of the rotating column by welding. A hinge plate is rotatably mounted inside the hinge joint, and a wireless transceiver module is fixed to the hinge plate by bolts. The wireless transceiver module is connected to the temperature sensor signal via a data cable and is also wirelessly connected to the ring mains cabinet temperature measurement system. The wireless transceiver module is electrically connected to the power supply via a power cable. This configuration allows the orientation of the antenna in the wireless transceiver module to be adjusted according to actual installation requirements, thereby ensuring that the wireless transceiver module transmits data to the ring mains cabinet temperature measurement system in a timely manner.

[0012] Furthermore, the wireless transmission mechanism also includes a first rubber pad and a second rubber pad. The first rubber pad is fixed inside the hinge joint by screws, and the second rubber pad is fixed to the outer side of the hinge plate by screws. The first rubber pad and the second rubber pad are arranged to press against each other. This arrangement can prevent the hinge plate from rotating under its own weight after the angle of the hinge plate on the hinge joint is adjusted.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The heat-conducting frame of this utility model is configured such that the first heat-conducting column, the second heat-conducting column, and the third heat-conducting column can respectively transfer the temperature of the two ends and the middle of the heat-conducting sleeve to the heat-conducting plate, and then transfer the temperature to the temperature sensor through the heat-conducting plate, thereby avoiding the limitations of single-position temperature measurement and improving the accuracy and comprehensiveness of temperature detection.

[0015] 2. The wireless transmission mechanism of this utility model allows for adjustment of the antenna orientation in the wireless transceiver module by manually rotating the rotating column and adjusting the angle of the hinge plate on the hinge joint. This ensures that the wireless transceiver module transmits data to the ring network cabinet temperature measurement system in a timely manner. At the same time, it eliminates the need to pay attention to the antenna orientation in the wireless transceiver module during installation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0017] Figure 1 This is a cross-sectional structural diagram of the present invention.

[0018] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 3 This is a schematic diagram of the structure of the heat conduction frame of this utility model.

[0020] Figure 4 This is an exploded structural diagram of the wireless transmission mechanism of this utility model.

[0021] In the picture:

[0022] 1-Plug body, 2-Heat-conducting sleeve, 3-Heat-conducting frame, 31-Heat-conducting plate, 32-First heat-conducting column, 33-Second heat-conducting column, 34-Third heat-conducting column, 4-Temperature sensor, 5-Wireless transmission mechanism, 51-Rotating column, 52-Hinge joint, 53-Hinge plate, 54-Wireless transceiver module, 55-First rubber pad, 56-Second rubber pad, 6-Power supply. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", "around", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0025] Please see Figures 1 to 4 As shown, this utility model is a wireless temperature measuring plug for a ring main unit, including a plug body 1, a heat-conducting sleeve 2, a heat-conducting frame 3, a temperature sensor 4, a wireless transmission mechanism 5, and a power supply 6. The heat-conducting sleeve 2 is fixed inside one end of the plug body 1, and the heat-conducting frame 3, the temperature sensor 4, and the power supply 6 are fixed inside the plug body 1 respectively. The heat-conducting end of the heat-conducting frame 3 is fixed to the corresponding position of the heat-conducting sleeve 2 and the detection end of the temperature sensor 4 respectively. The wireless transmission mechanism 5 is rotatably mounted on the outer side of the plug body 1, wherein the wireless transmission mechanism 5 is wirelessly connected to the ring main unit temperature measuring system, and the wireless transmission module 5 is connected to the temperature sensor 4 via a data cable. The power supply 6 is electrically connected to the temperature sensor 4 and the wireless transmission mechanism 5 via a power cable.

[0026] Specifically, the heat-conducting frame 3 includes a heat-conducting plate 31, a first heat-conducting column 32, a second heat-conducting column 33, and a third heat-conducting column 34. The heat-conducting plate 31, the first heat-conducting column 32, the second heat-conducting column 33, and the third heat-conducting column 34 are all fixed inside the plug body 1. A first heat-conducting column 32 is welded to the center of one side of the heat-conducting plate 31, and the other end of the first heat-conducting column 32 is welded to one end of the heat-conducting sleeve 2. Several second heat-conducting columns 33 and third heat-conducting columns 34 are respectively welded to the sides of the heat-conducting plate 31. The other ends of the two heat-conducting columns 33 are fixed to the outer side of the middle of the heat-conducting sleeve 2 by welding, and the other end of the third heat-conducting column 34 is fixed to the outer side of the end of the heat-conducting sleeve 2 away from the temperature sensor 4 by welding; the outer side of the heat-conducting plate 31 is fixed to the detection end of the temperature sensor 4. When in use, the first heat-conducting column 32, the second heat-conducting column 33 and the third heat-conducting column 34 can transfer the temperature of the two ends and the middle of the heat-conducting sleeve 2 to the heat-conducting plate 31 respectively, and then transfer the temperature to the temperature sensor 4 through the heat-conducting plate 31.

[0027] Specifically, the wireless transmission mechanism 5 includes a rotating column 51, a hinge joint 52, a hinge plate 53, and a wireless transceiver module 54. The rotating column 51 is rotatably connected to the plug body 1 via a damping bearing, and one end of the rotating column 51 is fixed to the hinge joint 52 by welding. The hinge plate 53 is rotatably mounted inside the hinge joint 52, and the wireless transceiver module 54 is fixed to the hinge plate 53 by bolts. The wireless transceiver module 54 is connected to the temperature sensor 4 via a data cable, and is also wirelessly connected to the ring main unit temperature measurement system. The wireless transceiver module 54 is electrically connected to the power supply 6 via a power cable. In use, the wireless transceiver module 54 can transmit the data detected by the temperature sensor 4 to the ring main unit temperature measurement system wirelessly. In addition, by manually rotating the rotating column 51 and adjusting the angle of the hinge plate 53 on the hinge joint 52, the orientation of the antenna in the wireless transceiver module 54 can be adjusted, thereby ensuring that the wireless transceiver module 54 transmits the data to the ring main unit temperature measurement system in a timely manner.

[0028] Specifically, the wireless transmission mechanism 5 also includes a first rubber pad 55 and a second rubber pad 56. The first rubber pad 55 is fixed inside the hinge joint 52 by screws, and the second rubber pad 56 is fixed to the outer side of the hinge plate 53 by screws. The first rubber pad 55 and the second rubber pad 56 are arranged to press against each other. With this arrangement, after the angle of the hinge plate 53 on the hinge joint 52 is adjusted, the mutual pressing of the first rubber pad 55 and the second rubber pad 56 can prevent the hinge plate 53 from rotating under its own weight.

[0029] Please see Figure 1-4As shown, this utility model is a wireless temperature measuring plug for ring main units. Its working principle is as follows: When in use, the plug body 1 is first fixed to the corresponding cable node inside the ring main unit through the heat-conducting sleeve 2. At this time, through the cooperation of the heat-conducting sleeve 2 and the heat-conducting frame 3, the temperature of the cable node can be transferred to the temperature sensor 4. The temperature sensor 4 detects the temperature and transmits the detection data to the ring main unit temperature measurement system through the wireless transmission mechanism 5.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A wireless temperature measurement plug for ring main units, comprising a plug body (1), a heat-conducting sleeve (2), a heat-conducting frame (3), a temperature sensor (4), a wireless transmission mechanism (5) and a power supply (6), characterized in that: A heat-conducting sleeve (2) is fixed inside one end of the plug body (1), and a heat-conducting frame (3), a temperature sensor (4) and a power supply (6) are fixed inside the plug body (1); the heat-conducting end of the heat-conducting frame (3) is fixed to the corresponding position of the heat-conducting sleeve (2) and the detection end of the temperature sensor (4); a wireless transmission mechanism (5) is rotatably installed on the outer side of the plug body (1), wherein the wireless transmission mechanism (5) is wirelessly connected to the ring network cabinet temperature measurement system, and the wireless transmission mechanism (5) is connected to the temperature sensor (4) via a data cable; the power supply (6) is electrically connected to the temperature sensor (4) and the wireless transmission mechanism (5) via a power cable.

2. The wireless temperature measuring plug for a ring main unit as described in claim 1, characterized in that: The heat-conducting frame (3) includes a heat-conducting plate (31), a first heat-conducting column (32), a second heat-conducting column (33), and a third heat-conducting column (34). The heat-conducting plate (31), the first heat-conducting column (32), the second heat-conducting column (33), and the third heat-conducting column (34) are all fixed inside the plug body (1). The first heat-conducting column (32) is fixed in the middle of one side of the heat-conducting plate (31), and the other end of the first heat-conducting column (32) is connected to the heat-conducting sleeve (2). One end of the heat-conducting plate (31) is fixed to the side; several second heat-conducting columns (33) and third heat-conducting columns (34) are fixed to the side of the heat-conducting plate (31), wherein the other end of the second heat-conducting column (33) is fixed to the outer side of the middle part of the heat-conducting sleeve (2), and the other end of the third heat-conducting column (34) is fixed to the outer side of the end of the heat-conducting sleeve (2) away from the temperature sensor (4); the outer side of the heat-conducting plate (31) is fixed to the detection end of the temperature sensor (4).

3. The wireless temperature measuring plug for a ring main unit as described in claim 1, characterized in that: The wireless transmission mechanism (5) includes a rotating column (51), a hinge joint (52), a hinge plate (53), and a wireless transceiver module (54). The rotating column (51) is rotatably connected to the plug body (1) through a damping bearing, and a hinge joint (52) is fixed at one end of the rotating column (51). The hinge plate (53) is mounted inside the hinge joint (52) through a hinge rotation, and a wireless transceiver module (54) is fixed on the hinge plate (53). The wireless transceiver module (54) is connected to the temperature sensor (4) via a data cable, and the wireless transceiver module (54) is connected to the ring main unit temperature measurement system via a wireless signal. The wireless transceiver module (54) is electrically connected to the power supply (6) via a power cable.

4. The wireless temperature measuring plug for a ring main unit as described in claim 3, characterized in that: The wireless transmission mechanism (5) further includes a first rubber pad (55) and a second rubber pad (56). The first rubber pad (55) is fixed inside the hinge joint (52), and the second rubber pad (56) is fixed on the outer side of the hinge plate (53). The first rubber pad (55) and the second rubber pad (56) are arranged to press against each other.

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