Magnetic temperature probe and power equipment

Abstract

The utility model provides a magnetic temperature probe and electrical equipment, the magnetic temperature probe comprises a housing, a ring magnet and a temperature sensing device, the housing is provided with a magnet installation groove and a probe cavity, the magnet installation groove is communicated with the probe cavity, the ring magnet is installed in the magnet installation groove, the temperature sensing device is installed in the probe cavity, and the ring magnet is installed in the probe cavity. The temperature sensing device is located at the position close to the annular magnet. The first side of the magnet installation groove is provided with a first opening, the circular ring magnet is provided with a containing hole, and the axial direction of the containing hole is the same as the orientation of the first opening. The magnetic temperature probe is applied to the electrical equipment. The temperature probe with the magnetic attraction is convenient to install, anti-vibration, anti-pulling and high in reliability.

Description

Technical Field

[0001] The utility model relates to the technical field of magnetic temperature probes, in particular to a magnetic temperature probe and also to electric power equipment using the magnetic temperature probe. Background Art

[0002] Existing low-voltage cabinets, drawer cabinets, and other electrical equipment on the market typically use bolts to secure incoming and outgoing cables. Temperature probes are often installed at these locations to monitor and collect temperature data to prevent safety risks from excessive temperatures. Existing temperature probes primarily utilize OT / UT terminals. Installation requires the addition of nuts to secure them, or the loosening of the original nuts on the equipment. After inserting the OT / UT terminals into the bolts, the original nuts must be tightened again to complete the installation. This approach has the following drawbacks: 1. The extension of the original cable bolts may not be long enough to secure them with the nut, making installation impossible. 2. Once the cable bolts are tightened, loosening the original nuts is prohibited. On-site electrical equipment is often live, so loosening the cable nuts and touching live parts with metal tools is prohibited. This can easily make it impossible to complete on-site monitoring of the equipment's operating status.

[0003] To overcome these shortcomings, magnetic probes have emerged on the market. These probes magnetically attach to bolts, enabling temperature measurement. However, most magnetic probes lack position limits and only possess a magnetic attraction function. This makes them susceptible to long-term vibration from power equipment, causing the temperature measurement point to shift. Adding adhesive to secure them can also affect temperature measurement results. Furthermore, these magnetic probes are generally oversized. Installing them on cable fixing bolts for temperature measurement can severely affect the insulation distance between the three-phase cables, significantly impacting the electrical insulation safety of power equipment.

[0004] Therefore, a more optimized magnetic probe needs to be considered. Utility Model Content

[0005] The first purpose of the utility model is to provide a temperature probe with magnetic attraction which is easy to install, resistant to vibration and pulling, and has high reliability.

[0006] The second object of the utility model is to provide an electric power device which is easy to install a temperature probe and is resistant to vibration and pulling and has high reliability.

[0007] In order to achieve the above-mentioned first purpose, the utility model provides a magnetic temperature probe including a shell, a circular ring magnet and a temperature sensing device. The shell is provided with a magnet mounting groove and a probe cavity. The magnet mounting groove and the probe cavity are communicated with each other. The circular ring magnet is installed in the magnet mounting groove. The temperature sensing device is installed in the probe cavity. The temperature sensing device is located close to the circular ring magnet. A first opening is provided on a first side of the magnet mounting groove, and a receiving hole is provided on the circular ring magnet. The axial direction of the receiving hole is the same as that of the first opening.

[0008] It can be seen from the above scheme that the magnetic temperature probe of the present invention is provided with a ring magnet and a temperature sensing device. The ring magnet is provided with a receiving hole to form a limiting structure, which can be used to be mounted on the bolt that needs to detect the temperature, and the ring magnet is limited to avoid displacement due to long-term vibration. At the same time, the installation of the temperature probe can be completed by only mounting the ring magnet on the bolt, which is simple to operate. Moreover, the temperature conduction by the contact between the ring magnet and the bolt is conducive to the temperature detection of the temperature sensing device and improves the detection accuracy. In addition, the magnetic temperature probe has a simple structure and a small size. Installing the temperature probe on the bolt has little effect on the insulation distance between the three-phase cables and is highly safe.

[0009] In a further solution, the annular magnet protrudes from the outer surface of the housing through the first opening.

[0010] It can be seen from this that the annular magnet protrudes from the outer surface of the shell, which makes it easier for the annular magnet to contact the bolt and facilitates temperature conduction.

[0011] In a further solution, a through hole is provided on the side wall of the magnet installation groove facing away from the first opening, and the through hole is arranged opposite to the accommodating hole.

[0012] It can be seen from this that a through hole is provided on the side wall of the magnet mounting groove facing away from the first opening, which makes it easy to observe the alignment of the bolt and the receiving hole.

[0013] In a further solution, the aperture of the through hole is greater than or equal to the aperture of the receiving hole and smaller than the outer diameter of the annular magnet.

[0014] It can be seen from this that the aperture of the through hole is greater than or equal to the aperture of the accommodating hole and smaller than the outer diameter of the annular magnet. When the annular magnet is installed in the magnet mounting groove, the side wall of the magnet mounting groove facing away from the first opening plays a blocking and limiting role. At the same time, when the annular magnet is mounted on the bolt, the bolt can pass through the through hole.

[0015] In a further solution, the annular magnet is a high temperature resistant permanent magnet.

[0016] It can be seen that the use of high temperature resistant permanent magnets in the ring magnets can increase the service life of the ring magnets.

[0017] In a further solution, the magnetic temperature probe further includes a cable, which is electrically connected to the temperature sensing device.

[0018] It can be seen that setting up an electrical connection between a cable and a temperature sensing device can facilitate connection with an external circuit, thereby transmitting temperature monitoring data.

[0019] In a further solution, a portion of the cable exposed outside the shell is provided with a telescopic portion, and the telescopic portion is located on a side close to the shell.

[0020] It can be seen that the cable is provided with a telescopic part, which has a telescopic function, thereby avoiding the risk of the temperature measuring probe falling when the cable swings or is pulled by external force, and improving the reliability of the probe installation.

[0021] In a further solution, the telescopic portion is formed by winding a cable into a spiral shape.

[0022] It can be seen that the cable is wound into a spiral shape, which can have a telescopic function. At the same time, it can be wound around the power cable without the need for cable ties.

[0023] In a further solution, the shell includes a base and a cover, and the base and the cover are detachably connected; the base and the cover cooperate to form a magnet mounting groove and a probe cavity.

[0024] It can be seen that the shell is detachably connected by providing the base and the cover, which can be easily disassembled and assembled.

[0025] In order to achieve the above-mentioned second purpose, the power equipment provided by the utility model is provided with a bolt for fixing the power supply cable, and a temperature probe is installed on the bolt, and the temperature probe adopts the above-mentioned magnetic temperature probe; the bolt is inserted into the receiving hole of the circular magnet and is attracted to the circular magnet. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural diagram of an embodiment of the utility model with a magnetic temperature probe.

[0027] Figure 2 This is a structural exploded view of an embodiment of the utility model with a magnetic temperature probe.

[0028] Figure 3 This is a structural cross-sectional view of an embodiment of the utility model with a magnetic temperature probe.

[0029] Figure 4 This is a structural diagram of the position of the fixed power supply cable in the embodiment of the power equipment of the utility model.

[0030] Figure 5 It is a structural cross-sectional view of the position of the power supply cable in the embodiment of the power equipment of the utility model.

[0031] Figure 6 yes Figure 5 Enlarged view of point A in the middle.

[0032] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION

[0033] Example of magnetic temperature probe:

[0034] In this embodiment, Figure 1 Figure 2 and Figure 3 As shown, the magnetic temperature probe includes a housing 1, a ring magnet 2, a temperature sensor 3, and a cable 4. The housing 1 includes a base 11 and a cover 12, which are detachably connected. The base 11 and cover 12 cooperate to form a magnet mounting slot 13 and a probe cavity 14, which communicate with each other. The housing 1, with its detachable base 11 and cover 12, facilitates assembly and disassembly.

[0035] The annular magnet 2 is installed in the magnet mounting groove 13, and the temperature sensing device 3 is installed in the probe cavity 14, and the temperature sensing device 3 is located near the annular magnet 2. Preferably, the temperature sensing device 3 is in contact with the annular magnet 2. The first side 111 of the magnet mounting groove 13 is provided with a first opening, and the annular magnet 2 is provided with a receiving hole 21, and the axial direction of the receiving hole 21 is the same as that of the first opening. The annular magnet 2 protrudes from the outer surface of the shell 1 through the first opening. The annular magnet 2 protrudes from the outer surface of the shell 1, which can facilitate the contact of the annular magnet 2 with the bolts in the electrical equipment that need to detect the temperature, thereby facilitating temperature conduction. Preferably, the annular magnet 2 is a high-temperature resistant permanent magnet. Preferably, the annular magnet 2 is bonded in the magnet mounting groove 13, and the annular magnet 2 adopts a high-temperature resistant permanent magnet, which can increase the service life of the annular magnet 2.

[0036] In this embodiment, a through hole 112 is provided on the side wall of the magnet mounting groove 13 facing away from the first opening, and the through hole 112 is arranged opposite to the receiving hole 21. The aperture of the through hole 112 is greater than or equal to the aperture of the receiving hole 21 and smaller than the outer diameter of the annular magnet 2. The through hole 112 is provided on the side wall of the magnet mounting groove 13 facing away from the first opening, which facilitates observation of the alignment of the bolt and the receiving hole 21. In addition, the aperture of the through hole 112 is greater than or equal to the aperture of the receiving hole 21 and smaller than the outer diameter of the annular magnet 2. When the annular magnet 2 is installed in the magnet mounting groove 13, the side wall of the magnet mounting groove 13 facing away from the first opening can serve as a blocking and limiting function. At the same time, when the annular magnet 2 is mounted on the bolt, the bolt can pass through the through hole 112.

[0037] In this embodiment, the cable 4 is electrically connected to the temperature sensing device 3. By setting the cable 4 to be electrically connected to the temperature sensing device 3, it is convenient to connect to the external circuit, thereby transmitting temperature monitoring data. A portion of the cable 4 exposed to the shell 1 is provided with a telescopic portion 41, and the telescopic portion 41 is located on the side close to the shell 1. The telescopic portion 41 is formed by winding the cable 4 into a spiral shape. The cable 4 is provided with the telescopic portion 41, which has a telescopic function, to avoid the risk of the temperature measuring probe falling when the cable 4 swings or is pulled by external force, thereby improving the reliability of the probe installation.

[0038] It can be seen from the above scheme that the magnetic temperature probe of the present invention is provided with a ring magnet 2 and a temperature sensor 3. The ring magnet 2 is provided with a receiving hole 21 to form a limiting structure, which can be used to be mounted on a bolt that needs to detect temperature, to limit the ring magnet 2 and avoid displacement due to long-term vibration. At the same time, the temperature probe can be installed by only mounting the ring magnet 2 on the bolt, which is simple to operate. Moreover, the temperature conduction by the contact between the ring magnet 2 and the bolt is conducive to the temperature detection by the temperature sensor 3, thereby improving the detection accuracy. In addition, the magnetic temperature probe has a simple structure and a small size. Installing the temperature probe on the bolt has little effect on the insulation distance between the three-phase cable 4 and is highly safe.

[0039] Power equipment example:

[0040] In this embodiment, see Figure 4 、 Figure 5 and Figure 6 The power equipment is provided with a bolt 5 for fixing the power supply cable 6. A temperature probe is mounted on the bolt 5. The temperature probe is the magnetic temperature probe of the above embodiment. The bolt 5 is inserted into the receiving hole 21 of the ring magnet 2 and is attracted to the ring magnet 2.

[0041] When installing the temperature probe, align the receiving hole 21 with the end of the bolt 5, then insert the bolt 5 into the receiving hole 21 of the ring magnet 2, and finally wrap the telescopic portion 41 of the cable 4 around the power cable 6 to complete the installation. Wrapping the cable 4 around the power cable 6 can avoid the need for cable ties.

[0042] It should be noted that the above are only preferred embodiments of the present invention, but the design concept of the utility model is not limited thereto. Any non-substantial modifications made to the present invention using this concept also fall within the scope of protection of the present invention.

Claims

1. A magnetic temperature probe, characterized by: The device comprises a housing, a circular ring magnet and a temperature sensing device, wherein the housing is provided with a magnet mounting slot and a probe cavity, the magnet mounting slot and the probe cavity are in communication, the circular ring magnet is mounted in the magnet mounting slot, the temperature sensing device is mounted in the probe cavity, and the temperature sensing device is located near the circular ring magnet; A first opening is provided on a first side of the magnet mounting groove, and a receiving hole is provided on the annular magnet. The axial direction of the receiving hole is the same as that of the first opening.

2. The magnetic temperature probe according to claim 1, characterized in that: The annular magnet protrudes from the outer surface of the housing through the first opening.

3. The magnetic temperature probe according to claim 1, characterized in that: A through hole is provided on the side wall of the magnet installation slot facing away from the first opening, and the through hole is arranged opposite to the accommodating hole.

4. The magnetic temperature probe according to claim 3, characterized in that: The aperture of the through hole is greater than or equal to the aperture of the accommodating hole and smaller than the outer diameter of the annular magnet.

5. The magnetic temperature probe according to any one of claims 1 to 4, characterized in that: The annular magnet is a high-temperature resistant permanent magnet.

6. The magnetic temperature probe according to any one of claims 1 to 4, characterized in that: The magnetic temperature probe further includes a cable, which is electrically connected to the temperature sensing device.

7. The magnetic temperature probe according to claim 6, characterized in that: A portion of the cable exposed from the housing is provided with a telescopic portion, and the telescopic portion is located on a side close to the housing.

8. The magnetic temperature probe according to claim 7, characterized in that: The telescopic portion is formed by winding the cable into a spiral shape.

9. The magnetic temperature probe according to any one of claims 1 to 4, characterized in that: The housing comprises a base and a cover, wherein the base and the cover are detachably connected; The base and the cover cooperate to form the magnet mounting groove and the probe cavity.

10. An electric power equipment, provided with a bolt for fixing a power supply cable, with a temperature probe mounted on the bolt, characterized in that: The temperature probe is a magnetic temperature probe according to any one of claims 1 to 9; The bolt is inserted into the receiving hole of the annular magnet and is attracted to the annular magnet.

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