Wireless temperature measurement clamp
By setting up an electromagnetic induction power generation module and a temperature sensor built-in in the accommodation chamber in the wireless temperature measuring cable clamp, the sensor is powered by the principle of electromagnetic mutual induction and isolating heat through the hole sleeve, the problems of complex structure and low installation efficiency are solved, and the equipment life is extended and the stability of temperature monitoring is achieved.
Patent Information
- Application Number
- CN202110651491.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-06-10
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2041-06-10
AI Technical Summary
The existing wireless temperature measuring cable clamp has a complex structure, low installation efficiency, and the temperature sensor is easily affected by the external environment, resulting in a shortened life and the inability to continuously monitor the temperature of the high-voltage cable clamp.
A housing cavity is set up between the cable connection barrel of the temperature measuring cable clamp and the housing, and an electromagnetic induction power generation module and a temperature sensor are built-in. The principle of electromagnetic mutual induction provides electrical energy to the sensor, and heat is isolated through the hole sleeve to ensure the stable operation of the sensor.
The wire clamp structure is simplified, the installation efficiency is improved, the equipment life is extended, the continuous and accurate temperature monitoring is ensured, and the temperature measurement interruption is avoided due to power exhaustion.
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Figure CN113328273B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of temperature measuring wire clamps, and in particular to a wireless temperature measuring wire clamp. Background Art
[0002] my country's high-voltage transmission and distribution cables are characterized by ultra-high or ultra-high voltage and high current. High-voltage clamps are commonly used for connections at locations such as user T-junctions, the splice between the high-voltage pole head of a pole switch and the cable, and the splice between the high-voltage pole head of a transformer and the cable. After a period of use, high-voltage clamps can heat up and burn out due to metal fatigue and deformation, potentially causing power failures. Therefore, power companies need to monitor the temperature of the high-voltage clamps on each high-voltage transmission and distribution cable in real time to prevent overheating and power failures. To ensure normal power supply, temperature sensors are required for real-time temperature monitoring. Current clamp temperature measurement devices typically use infrared or thermometers. These temperature sensors require a power supply, which deactivates when the power supply runs out, resulting in limitations. Wireless temperature measurement clamps have been developed on the market. These utilize electromagnetic induction to generate electricity for the temperature sensor, addressing the power generation issue. However, these wireless temperature measurement clamps are complex and inefficient to install. Summary of the Invention
[0003] The main purpose of the present invention is to provide a wireless temperature measurement wire clamp, aiming to simplify the wire clamp structure and improve installation efficiency.
[0004] To achieve the above-mentioned objectives, the present invention proposes a wireless temperature measuring wire clamp, which includes a wire clamp body, an electromagnetic induction power generation module and a temperature sensor; the wire clamp body includes a cable connecting tube and an outer shell, one end of the cable connecting tube is provided with a tube opening, the transmission cable is passed through the cable connecting tube through the tube opening, the outer shell is provided on the periphery of the cable connecting tube, and the inner wall of the outer shell and the outer wall of the cable connecting tube are combined to form an accommodating cavity; the electromagnetic induction power generation module is provided in the accommodating cavity, the electromagnetic induction power generation module includes a magnetic conductive metal and a coil, the magnetic conductive metal is provided around the cable connecting tube, and the magnetic conductive metal passes through the coil; the temperature sensor is provided in the accommodating cavity and is electrically connected to the coil.
[0005] Optionally, the cable connecting barrel further includes a hole sleeve, which is arranged around the outer wall of the cable connecting barrel and is disposed in the accommodating cavity, and the temperature sensor abuts against the outer surface of the hole sleeve.
[0006] Optionally, the hole sleeve includes an upper sleeve and a lower sleeve connected to each other, and the upper sleeve and the lower sleeve each include an outer surface, an inner surface and a connecting surface connecting the inner and outer surfaces. The inner surfaces of the upper sleeve and the lower sleeve are both in contact with the outer wall of the cable connecting tube, and the inner surfaces of the upper sleeve and the lower sleeve are both arc surfaces. The outer surface of the upper sleeve is an arc surface, and the outer surface of the lower sleeve is a plane.
[0007] Optionally, the temperature sensor abuts against the outer surface of the lower sleeve;
[0008] And / or, the temperature sensor is arranged on the inner wall of the shell.
[0009] Optionally, the magnetic conductive metal is a rectangular iron core.
[0010] Optionally, the side wall of the wire clamp body is provided with at least two through holes spaced side by side, and the through holes are communicated with the cable connecting barrel.
[0011] Optionally, the wire clamp body further includes a pressing member, which is passed through the through hole and abuts against the power transmission cable.
[0012] Optionally, the wire clamp body includes a cable connection part and a transformer connection part, the cable connection part includes the cable connection barrel and the shell, the transformer connection part is connected to the side of the cable connection part away from the barrel mouth, the cable connection part is used to detect the transmission cable, and the transformer connection part is provided with a transformer mounting hole, and the transformer mounting hole vertically penetrates the transformer connection part.
[0013] Optionally, an opening is provided on the hole wall of the transformer mounting hole, and clamping flanges are respectively extended from both ends of the opening in a direction away from the transformer mounting hole, and the two clamping flanges are arranged opposite to each other.
[0014] Optionally, the clamp body further comprises a cover plate, the cover plate is provided with a clearance opening corresponding to the barrel opening, the cover plate is mounted on the housing, and the clearance opening is communicated with the barrel opening;
[0015] And / or, the wireless temperature measurement clamp includes an antenna, the antenna is connected to the temperature sensor, and the antenna is arranged in the accommodating cavity.
[0016] The technical solution of the present invention is to provide an accommodating cavity between the cable connecting tube of the temperature measuring wire clamp and the shell, and to arrange the electromagnetic induction power generation module and the temperature sensor in the accommodating cavity, thereby improving the service life of the wire clamp, ensuring the temperature measurement effect, simplifying the wire clamp structure, and improving the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.
[0018] Figure 1 This is a structural diagram of an embodiment of a wireless temperature measurement clip of the present invention;
[0019] Figure 2 for Figure 1 Exploded view of the wireless temperature measurement clip;
[0020] Figure 3 for Figure 1 A schematic structural diagram of a wireless temperature measurement wire clamp embodiment in which the cover is removed;
[0021] Figure 4 for Figure 3 Schematic diagram of the front structure of the wireless temperature measurement clip;
[0022] Figure 5 for Figure 2 Schematic diagram of the structure of the wireless temperature measurement clip assembled with the electromagnetic induction power generation module;
[0023] Figure 6 This is a cross-sectional view of an embodiment of the wireless temperature measurement clip of the present invention;
[0024] Figure 7 for Figure 3 A cross-sectional view of the wireless temperature measuring wire clamp assembly pressing piece;
[0025] Figure 8 This is a structural diagram of the parallel wire clamp in the wireless temperature measurement wire clamp of the present invention;
[0026] Figure 9 for Figure 8 Schematic diagram of the front structure with the parallel clamp cover removed.
[0027] Description of Figure Numbers:
[0028] Label name Label name 1 Wireless temperature measurement clip 10 Cable connection 110 Cable clamp body 111 Cable connection barrel 1111 Hole sleeve 111a On the set 111b Set a trap 112 shell 113 Accommodation cavity 114 through-hole 115 Clamping parts 116 Cover 1161 Give way 130 Electromagnetic induction power generation module 131 Magnetic metal 133 Coil 150 Temperature sensor 151 antenna 20 Transformer connection 210 Transformer mounting hole 230 Opening 231 clamping flange
[0029] The purpose, features and advantages of the present invention will be further described with reference to the accompanying drawings and in conjunction with the embodiments. DETAILED DESCRIPTION
[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.
[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.
[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features specified as "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that ordinary technicians in this field can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.
[0033] The present invention provides a wireless temperature measurement clip 1.
[0034] In the embodiment of the present invention, Figures 1 to 4 As shown, the wireless temperature measuring wire clamp 1 includes a wire clamp body 110, an electromagnetic induction power generation module 130 and a temperature sensor 150; the wire clamp body 110 includes a cable connecting tube 111 and a shell 112, one end of the cable connecting tube 111 is provided with a tube opening, and the transmission cable passes through the cable connecting tube 111 through the tube opening, and the shell 112 is arranged on the outer periphery of the cable connecting tube 111, and the inner wall of the shell 112 and the outer wall of the cable connecting tube 111 are enclosed to form an accommodating cavity 113; the electromagnetic induction power generation module 130 is arranged in the accommodating cavity 113, and the electromagnetic induction power generation module 130 includes a magnetic conductive metal 131 and a coil 133, the magnetic conductive metal 131 is arranged around the cable connecting tube 111, and the magnetic conductive metal 131 passes through the coil 133; the temperature sensor 150 is arranged in the accommodating cavity 113 and is electrically connected to the coil 133.
[0035] Electromagnetic induction power generation module 130 utilizes the principle of electromagnetic mutual induction to extract electrical energy from the transmission cable and thereby provide power to temperature sensor 150. As long as the transmission cable is transmitting power, the principle of electromagnetic mutual induction is that when the current in one coil 133 changes, an induced electromotive force is generated in another adjacent coil 133. Because the transmission cable transmits alternating current, alternating current means a change in the magnetic field, which in turn causes a change in the magnetic field within electromagnetic induction power generation module 130. Electromagnetic induction power generation module 130 comprises metal and coil 133. Coil 133 forms a closed loop around the wire, generating current within coil 133. Connecting coil 133 to an electrical appliance via wire completes wireless power generation. The use of metal involves adding an iron core to coil 133. When the iron core is inserted into a energized solenoid, it is magnetized by the solenoid's magnetic field. The magnetized iron core also becomes a magnet. The superposition of the two magnetic fields significantly enhances the solenoid's magnetism, thereby increasing the current flowing through coil 133. Such an arrangement can provide the temperature sensor 150 with a continuous supply of working power, effectively ensuring the long-term stable operation of the temperature sensor 150 .
[0036] In this embodiment, a housing 112 and a cable connection barrel 111 are provided with a housing 113 for accommodating the electromagnetic induction power generation module 130 and the temperature sensor. This temperature measuring clamp is typically used outdoors and is subject to various environmental changes, including exposure to sunlight and rain. If the power generation module and temperature sensor 150 are located outside the housing 112, they are susceptible to environmental influences, which can shorten the life of the clamp and reduce its performance. In severe cases, this can lead to an inability to measure temperature and damage the cable. Therefore, the provision of the housing 113 not only improves the life of the clamp and ensures effective temperature measurement, but also avoids power failure and the inability of the temperature sensor 150 to stop working, resulting in a loss of temperature monitoring for the transformer clamp. Furthermore, the distance between the electromagnetic induction power generation module 130 and the transmission cable is reduced, thereby increasing the induced magnetic field of the coil 133 and achieving increased and more stable power generation. Furthermore, the structure within the housing 113 is very simple, requiring only the connection of the magnetic conductive metal 131 and the coil 133 to achieve the desired effect. Furthermore, the clamp is quick and easy to install, improving installation efficiency.
[0037] The technical solution of the present invention is to provide a accommodating cavity 113 between the cable connecting tube 111 of the temperature measuring wire clamp and the outer shell 112, and to arrange the electromagnetic induction power generation module 130 and the temperature sensor 150 in the accommodating cavity 113, thereby improving the service life of the wire clamp, ensuring the temperature measurement effect, simplifying the wire clamp structure, and improving installation efficiency.
[0038] In one embodiment of the present invention, Figures 2 to 4As shown, the cable connecting barrel 111 further includes a hole sleeve 1111 , which is arranged around the outer wall of the cable connecting barrel 111 and disposed in the accommodating cavity 113 , and the temperature sensor 150 abuts against the outer surface of the hole sleeve 1111 .
[0039] The setting of the hole sleeve 1111 isolates the electromagnetic induction power generation module 130 from the cable connecting tube 111. The wall of the cable connecting tube 111 is very small. If the electromagnetic induction power generation module 130 and the temperature sensor 150 are directly arranged on the periphery of the cable connecting tube 111, because the transmission cable is passed through the cable connecting tube 111, a large amount of heat will be generated as the cable works, and the temperature will suddenly rise, which will directly affect the operation of the electromagnetic induction power generation module 130 and the temperature sensor 150. On the one hand, it will cause both to be overheated and reduce their lifespan. On the other hand, the temperature sensor 150 is composed of electronic components. When the temperature is too high, the electronic components will malfunction, affecting the temperature measurement effect. Therefore, the hole sleeve 1111 can isolate the cable connecting tube 111 from direct contact with the temperature measurement module and the power generation module, thereby improving the life of the wire clamp and providing a fixed installation position for the temperature sensor 150, so that the internal arrangement of the wire clamp is neat and orderly, effectively preventing the temperature sensor 150 from being damaged by external impact. Specifically, the temperature sensor 150 is fixed in the groove by fasteners such as screws.
[0040] In one embodiment of the present invention, Figure 2 、 Figure 3 As shown, the hole sleeve 1111 includes an upper sleeve 111a and a lower sleeve 111b connected to each other. The upper sleeve 111a and the lower sleeve 111b each include an outer surface, an inner surface and a connecting surface connecting the inner and outer surfaces. The inner surfaces of the upper sleeve 111a and the lower sleeve 111b are both in contact with the outer wall of the cable connecting tube 111. The inner surfaces of the upper sleeve 111a and the lower sleeve 111b are both arc surfaces. The outer surface of the upper sleeve 111a is an arc surface, and the outer surface of the lower sleeve 111b is a plane.
[0041] The inner surface of the hole sleeve 1111 is in close contact with the outer wall of the cable connecting tube 111, making full use of the space of the accommodating cavity 113. The outer periphery of the upper sleeve 111a and the lower sleeve 111b of the hole sleeve 1111 is provided with a coil 133, ensuring that the coil 133 is arranged around the outer periphery of the cable connecting tube 111, ensuring that the coil 133 generates electromagnetic mutual induction. The outer surface of the lower sleeve 111b of the hole sleeve 1111 is flat, and the area of the connection surface of the lower sleeve 111b is larger than the area of the connection surface of the upper sleeve 111a, that is, the distance between the outer surface of the lower sleeve 111b and the outer wall of the cable connecting tube 111 is greater than the distance between the outer surface of the upper sleeve 111a and the outer wall of the cable connecting tube 111. The outer surface of the lower sleeve 111b is connected to the temperature sensor 150, reducing the interference of the cable temperature on the temperature sensor 150, but not too far away from the power transmission cable, so as to achieve more accurate monitoring and more timely response, thereby improving the working effect of the temperature sensor 150.
[0042] In one embodiment of the present invention, Figure 2 、 Figure 3 As shown, the temperature sensor 150 abuts against the outer surface of the lower sleeve 111 b ; and / or, the temperature sensor 150 is disposed on the inner wall of the outer shell 112 .
[0043] The temperature sensor 150 is arranged on the inner wall of the outer shell 112 of the wire clamp body 110, near the cable connecting barrel 111; the part of the power transmission cable in the cable connecting barrel 111 that is compressed generates more serious heat, and the temperature sensor 150 can effectively monitor the heating condition of this part to avoid the occurrence of safety hazards. At the same time, the temperature sensor 150 is located on the inner wall of the outer shell 112 of the wire clamp body 110. The temperature sensor 150 can be removed by simply removing the outer shell 112 on the side with the temperature sensor 150, which makes it convenient for staff to repair and replace the temperature sensor 150.
[0044] In one embodiment, the wire clamp body 110 includes a box body, which is disposed at the bottom of the wire clamp body 110 and communicates with the accommodating cavity 113. The temperature sensor 150 is disposed within the box body. The box body can limit the temperature sensor 150 and prevent it from sliding within the accommodating cavity 113. At the same time, the box body protects the temperature sensor 150, isolating it from the outside world, effectively preventing dust particles from adhering to the temperature sensor 150 and affecting its temperature measurement performance. This extends the service life of the temperature sensor 150 and effectively prevents damage to the temperature sensor 150 due to exposure to sunlight and rain in the field.
[0045] Furthermore, the temperature sensor 150 is detachably connected to the side of the box body facing the wire clamp body 110 . Specifically, the temperature sensor 150 is connected to the side of the box body facing the wire clamp body 110 via fasteners such as screws or a snap-fit structure.
[0046] In one embodiment of the present invention, Figure 3 、 Figure 4 As shown, the magnetic conductive metal 131 is a rectangular iron core.
[0047] The rectangular core can effectively utilize the space in the accommodating cavity 113 and has advantages similar to those of the R-type core, such as stable structure, customizable size, small size, high efficiency, and low magnetic leakage.
[0048] In one embodiment of the present invention, Figures 1 to 6 As shown, the side wall of the wire clamp body 110 is provided with at least two through holes 114 spaced apart and arranged side by side, and the through holes 114 are communicated with the cable connection barrel 111 .
[0049] In this embodiment, two through-holes 114 are connected to the sidewalls of the cable connection barrel 111 and are arranged perpendicularly to the cable connection holes. A compression member 115 is provided in each through-hole 114. The compression member 115 can be a bolt, a spring, or the like. In this embodiment, the compression member 115 is a compression bolt. Through-holes 114 are formed with internal threads that mate with the two compression members 115. The two compression members 115 are respectively inserted through the two through-holes 114 to extend into the cable connection barrel 111 to compress the power transmission cable.
[0050] In one embodiment of the present invention, Figures 1 to 6 As shown, the wire clamp body 110 includes a cable connection portion and a transformer connection portion 20. The cable connection portion includes a cable connection barrel 111 and a housing 112. The transformer connection portion 20 is connected to the side of the cable connection portion away from the barrel opening. The cable connection portion is used to detect cables. The transformer connection portion 20 is provided with a transformer mounting hole 210, which vertically passes through the transformer connection portion 20. An opening 230 is formed in the wall of the transformer mounting hole 210. Clamping flanges 231 extend from both ends of the opening 230 in a direction away from the transformer mounting hole 210, and the two clamping flanges 231 are arranged opposite each other.
[0051] In this embodiment, a transformer mounting hole 210 is provided on the transformer connecting portion 20, and an opening 230 is provided on the hole wall of the transformer mounting hole 210. Clamping flanges 231 are respectively extended at both ends of the opening 230 in a direction away from the transformer mounting hole 210. The two clamping flanges 231 are arranged opposite to each other, and locking bolts are connected to the two clamping flanges 231. By clamping the two clamping flanges 231 with the locking bolts, the aperture of the transformer mounting hole 210 can be contracted, thereby clamping the terminal of the transformer passing through the transformer mounting hole 210, thereby realizing connection with the transformer. Specifically, the locking bolt passes through one of the clamping flanges 231, and the end cap of the locking bolt abuts against the clamping flange 231, and the other end of the locking bolt abuts against the other clamping flange 231. By tightening the locking bolt, the two clamping flanges 231 can be brought close to each other, thereby realizing the clamping operation.
[0052] In one embodiment, the cable connector 10 and the transformer connector 20 are integrally formed. This integral structure allows the cable connector and the transformer connector 20 to be integrally injection molded in the same mold. This eliminates the need to use separate molds for the cable connector and the transformer connector 20. Instead, a single injection molding and demolding process is required to obtain a complete cable clamp body 110.
[0053] In another embodiment, Figure 8 、 Figure 9 As shown, when the wireless temperature measuring wire clamp 1 is a parallel wire clamp, the transformer connecting part 20 and the cable connecting part 10 are arranged in parallel, and the side wall of the transformer connecting part 20 is fixedly connected to the side wall of the cable connecting part 10. The cable connecting part 10 is provided with a wire clamp body 110, an electromagnetic induction power generation module 130 and a temperature sensor 150. The transformer connecting part 20 is provided with a transformer mounting hole 210. By providing a limiting groove on the inner wall of the two clamping flanges 231, the position of the transformer is limited by the cooperation of the limiting member and the limiting groove, and then the clamping bolt is passed through the limiting member to abut and press the transformer to complete the step of fixing it to the transformer. Such a setting is suitable for installation on transformers of different types and sizes, and has a simple structure and can be used for large-scale industrial production.
[0054] In one embodiment of the present invention, Figure 2 As shown, the wire clamp body 110 also includes a cover plate 116, and the cover plate 116 is provided with a clearance opening 1161 corresponding to the barrel opening. The cover plate 116 is installed on the shell 112, and the clearance opening 1161 is connected to the barrel opening; the wireless temperature measurement wire clamp 1 includes an antenna 151, the antenna 151 is connected to the temperature sensor 150, and the antenna 151 is arranged in the accommodating cavity 113.
[0055] In this embodiment, the cover plate 116 is installed by aligning the clearance opening 1161 provided on its periphery with the limiting hole provided on the housing 112. The cover plate 116 can be installed to cover the opening of the housing 112 connected to one end of the cable connection barrel 111. The installation of the cover plate 116 isolates the electromagnetic induction power generation module 130 from the outside world, effectively preventing dust particles from adhering to the coil and corroding the coil. Furthermore, the cover plate 116 can be connected to the housing 12 using fasteners such as screws or a snap-fit structure.
[0056] In this embodiment, the antenna 151 is connected to the temperature sensor 150 for transmitting a signal to an external receiver, thereby transmitting the temperature monitored by the cable to the user in real time.
[0057] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention description and drawings under the inventive concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. A wireless temperature measuring clamp for detecting the temperature of a power transmission cable, characterized in that: The wireless temperature measurement clip comprises: The wire clamp body includes a cable connection barrel and a shell. One end of the cable connection barrel is provided with a barrel opening, and the power transmission cable is passed through the barrel opening to pass through the cable connection barrel. The shell is provided on the periphery of the cable connection barrel, and the inner wall of the shell and the outer wall of the cable connection barrel enclose a receiving cavity. an electromagnetic induction power generation module, the electromagnetic induction power generation module being disposed in the accommodating cavity, the electromagnetic induction power generation module comprising a magnetic conductive metal and a coil, the magnetic conductive metal being disposed around the cable connecting cylinder and the magnetic conductive metal passing through the coil; and a temperature sensor disposed in the accommodating cavity and electrically connected to the coil; The cable connecting barrel further includes a hole sleeve, which is arranged around the outer wall of the cable connecting barrel and is arranged in the accommodating cavity, and the temperature sensor abuts against the outer surface of the hole sleeve; The hole sleeve includes an upper sleeve and a lower sleeve connected to each other, and the upper sleeve and the lower sleeve each include an outer surface, an inner surface, and a connecting surface connecting the inner and outer surfaces. The inner surfaces of the upper sleeve and the lower sleeve are both in contact with the outer wall of the cable connecting cylinder. The inner surfaces of the upper sleeve and the lower sleeve are both arc surfaces. The outer surface of the upper sleeve is an arc surface, and the outer surface of the lower sleeve is a plane. The temperature sensor abuts against the outer surface of the lower sleeve; And / or, the temperature sensor is provided on the inner wall of the housing; The distance between the outer surface of the lower sleeve and the outer wall of the cable connecting tube is greater than the distance between the outer surface of the upper sleeve and the outer wall of the cable connecting tube.
2. The wireless temperature measurement clamp according to claim 1, characterized in that: The magnetic conductive metal is a rectangular iron core.
3. The wireless temperature measurement clamp according to claim 1, characterized in that: The side wall of the wire clamp body is provided with at least two through holes spaced side by side, and the through holes are communicated with the cable connecting barrel.
4. The wireless temperature measurement clamp according to claim 3, characterized in that: The clamp body further includes a pressing member, which is passed through the through hole and abuts against the power transmission cable.
5. The wireless temperature measurement clamp according to claim 1, characterized in that: The wire clamp body includes a cable connection part and a transformer connection part. The cable connection part includes the cable connection barrel and the shell. The transformer connection part is connected to the side of the cable connection part away from the barrel mouth. The cable connection part is used to detect the transmission cable. The transformer connection part is provided with a transformer mounting hole. The transformer mounting hole passes through the transformer connection part in a vertical direction.
6. The wireless temperature measurement clamp according to claim 5, characterized in that: An opening is provided on the hole wall of the transformer mounting hole, and clamping flanges are respectively extended from both ends of the opening in a direction away from the transformer mounting hole, and the two clamping flanges are arranged opposite to each other.
7. The wireless temperature measurement clamp according to claim 1, characterized in that: The wire clamp body further includes a cover plate, the cover plate is provided with a clearance opening corresponding to the barrel opening, the cover plate is mounted on the housing, and the clearance opening is communicated with the barrel opening; And / or, the wireless temperature measurement clamp includes an antenna, the antenna is connected to the temperature sensor, and the antenna is arranged in the accommodating cavity.
Citation Information
Patent Citations
Transformer wire clamp
CN112382481A
Wireless temperature measurement clamp
CN215184598U