Wire temperature current sensor

Abstract

The utility model discloses an embodiment provides a kind of wire temperature current sensor, it is related to electrical detection technical field.Wire temperature current sensor includes shell and cover body.The side of shell is equipped with first recess.The cover body is connected with shell transmission, to make cover body can rotate and press together shell or separate with shell.The side of cover body close to shell is equipped with second recess.Under the condition that shell and cover body press together, first recess and second recess form threading hole jointly.The sidewall of first recess and / or second recess is equipped with temperature detection piece.Shell is also embedded with clamping piece.The cover body is equipped with the avoiding cavity for avoiding clamping piece.Shell is also equipped with current detection piece.Current detection piece is connected with clamping piece.The utility model can realize sensor quick installation and disassembly, temperature and current detection are carried out to wire simultaneously, improve installation and detection efficiency, reduce sensor occupied space.

Description

Technical Field

[0001] This utility model relates to the field of electrical testing technology, and more specifically, to a wire temperature and current sensor. Background Technology

[0002] With the rapid development of power systems, real-time monitoring of conductor temperature and current is of great significance for the safe operation and fault early warning of power grids. Related technologies typically employ external thermistors or infrared temperature probes for conductor temperature detection, and independent current clamps, such as Hall effect sensors or current transformers, for current detection.

[0003] However, when it is necessary to monitor conductor temperature and current parameters simultaneously, technicians must install temperature and current sensors separately. This not only requires multiple installation operations but also necessitates individual calibration of the two sensors. Especially in compact electrical equipment or distribution cabinets with limited space, the installation of separate sensors often faces space constraints, leading to difficulties in sensor placement. Furthermore, the presence of multiple independent sensors increases system complexity and maintenance costs. Utility Model Content

[0004] The purpose of this invention is to provide a wire temperature and current sensor that enables quick installation and disassembly, simultaneously detects the temperature and current of the wire, improves installation efficiency, and reduces the space occupied by the sensor.

[0005] The embodiments of this utility model can be implemented as follows:

[0006] This utility model provides a wire temperature and current sensor, comprising:

[0007] The housing has a first groove on one side, which extends through the housing.

[0008] The cover is rotatably connected to the housing so that the cover can rotate to press against the housing or separate from the housing. A second groove is provided on the side of the cover near the housing, and the second groove passes through the cover.

[0009] When the housing and the cover are pressed together, the first groove and the second groove together form a wire hole for threading wires. Temperature detection elements are provided on the sidewalls of the first groove and / or the second groove for detecting the temperature of the wires.

[0010] The housing is also fitted with a clamping member, and the cover is provided with a clearance cavity for avoiding the clamping member. The clamping member is used to clamp the wire. The housing is also provided with a current detection member, which is connected to the clamping member and is used to detect the current of the wire.

[0011] In an optional embodiment, the temperature sensing element is a platinum resistance sensor, which is embedded in the sidewall of the first groove and / or the second groove.

[0012] In an optional embodiment, the sidewalls of the first groove and / or the second groove are provided with a receiving cavity, a wire passage hole and a lead wire groove. The receiving cavity is used to place the platinum resistance sensor, the wire passage hole is configured as a through hole and communicates with the interior of the housing or the cover, and the two ends of the lead wire groove are respectively connected to the receiving cavity and the wire passage hole.

[0013] In an optional embodiment, the platinum resistance sensor is further provided with a sealing cover plate, which is fixedly connected to the first groove and / or the second groove.

[0014] In an optional embodiment, the clamping includes a first clamping member and a second clamping member. The first clamping member is embedded in the housing, and the second clamping member is rotatably connected to the first clamping member. The second clamping member is disposed at one end of the first clamping member near the cover. The clearance cavity is used to avoid the second clamping member. Both the first clamping member and the second clamping member are provided with arc grooves so that when the first clamping member and the second clamping member are pressed together, the two arc grooves merge to form a circular hole.

[0015] In an optional implementation, the current sensing element is a Hall sensor.

[0016] In an optional embodiment, an equipotential hole is provided on the cover, the equipotential hole penetrates the cover, one end of the equipotential hole is connected to the second groove, and the other end of the equipotential hole is located at the end of the cover away from the shell.

[0017] In an optional embodiment, the housing is further provided with a pressure balancing hole on the side near the cover.

[0018] In an optional embodiment, the housing contains a battery and a PCB board.

[0019] In an optional embodiment, an antenna and an antenna cover are further provided on the side of the housing away from the cover, one end of the antenna is connected to the housing, and the antenna cover is fixedly connected to the housing to seal the antenna.

[0020] The beneficial effects of the wire temperature and current sensor provided in this embodiment of the invention include:

[0021] This utility model discloses a wire temperature and current sensor comprising a housing and a cover. A first groove is formed on one side of the housing, extending through the housing. The cover is tractively connected to the housing, allowing the cover to rotate and press against the housing or separate from it. A second groove is formed on the side of the cover near the housing, extending through the cover. When the housing and cover are pressed together, the first and second grooves together form a wire-passing hole for threading a wire. A temperature sensing element is provided on the sidewall of the first and / or second groove for detecting the temperature of the wire. A clamping element is also embedded in the housing. A clearance cavity is provided on the cover to avoid the clamping element. The clamping element is used to clamp the wire. A current sensing element is also provided inside the housing. The current sensing element is connected to the clamping element for detecting the current in the wire. By rotating the housing and cover, during installation, the wire is placed in the first groove, the cover is rotated to press against the housing, and the second and first grooves together clamp the wire, enabling rapid sensor installation. By integrating the temperature sensor and current sensor into the housing and cover, integrated temperature and current detection can be achieved, avoiding multiple sensor installations and improving installation and detection efficiency. This invention enables rapid sensor installation and removal, simultaneously detecting temperature and current in the wires, improving installation and detection efficiency, and reducing the space occupied by the sensors. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the wire temperature and current sensor in the off state provided in this embodiment;

[0024] Figure 2 This is a schematic diagram of the wire temperature and current sensor in the open state provided in this embodiment;

[0025] Figure 3 This is a schematic cross-sectional view of the wire temperature and current sensor provided in this embodiment.

[0026] Icons: 100-Wire temperature and current sensor; 10-Housing; 11-First groove; 111-Accommodation cavity; 112-Lead groove; 113-Wire through hole; 12-First clamping member; 13-Balance air pressure hole; 14-Battery; 15-PCB board; 16-Antenna; 17-Antenna cover; 18-Wire through hole; 20-Cover; 21-Second groove; 211-Wire sheath; 212-Equipotential hole; 22-Second clamping member; 23-Avoidance cavity. Detailed Implementation

[0027] In related technologies, conductor temperature detection typically employs external thermistors or infrared temperature probes, while current detection uses independent current clamps, such as Hall effect sensors or current transformers. When simultaneous monitoring of conductor temperature and current parameters is required, technicians must install separate temperature and current sensors. This not only necessitates multiple installation operations but also requires individual calibration of both sensors. The installation of separate sensors often faces space constraints, leading to difficulties in sensor placement.

[0028] To address the aforementioned problems, this utility model provides a wire temperature and current sensor that integrates a temperature sensor and a current sensor into a housing and cover, thereby improving the issues of cumbersome sensor installation steps and insufficient installation space.

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element 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.

[0033] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0034] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0035] The following describes in detail the overall structure, working principle, and technical effects of the wire temperature and current sensor provided by this utility model through embodiments and in conjunction with the accompanying drawings.

[0036] Please refer to Figure 1 and Figure 2 The wire temperature and current sensor 100 provided by this utility model is used for temperature detection and current detection of wires in electrical systems.

[0037] The wire temperature and current sensor 100 includes a housing 10 and a cover 20. A first groove 11 is formed on one side of the housing 10, extending through the housing 10. The cover 20 is rotatably connected to the housing 10, allowing the cover 20 to rotate and press against the housing 10 or to separate the housing 10. A second groove 21 is formed on the side of the cover 20 near the housing 10, extending through the cover 20. When the housing 10 and the cover 20 are pressed together, the first groove 11 and the second groove 21 together form a wire-passing hole 18 for threading a wire.

[0038] It is understood that the cover 20 and the housing 10 are rotatably connected by hinges located on their edges. When the cover 20 rotates towards the housing 10 and fits against it, the first groove 11 and the second groove 21 merge to form a wire-passing hole 18. During installation, the wire is placed in the first groove 11, and the cover 20 is rotated to press against the housing 10, so that the second groove 21 covers the wire. The wire is then clamped between the first groove 11 and the second groove 21, i.e., clamped in the wire-passing hole 18. The cover 20 and the housing 10 are then fixed together with bolts to complete the installation. During disassembly, the bolts between the cover 20 and the housing 10 are loosened, the cover 20 is rotated to separate it from the housing 10, and the wire is removed from between the first groove 11 and the second groove 21. The rotatable connection between the cover 20 and the housing 10 allows for quick clamping or loosening of the wire, enabling rapid installation and disassembly of the sensor.

[0039] Furthermore, a temperature sensing element is provided on the sidewall of the first groove 11 and / or the second groove 21 for detecting the temperature of the wire. It is understood that when the wire is installed between the housing 10 and the cover 20, the wire abuts against the sidewall of the first groove 11 and the second groove 21, thereby making the temperature sensing element close to the wire and thus realizing the detection of the wire temperature.

[0040] Specifically, in this embodiment, temperature detection elements are provided on the sidewalls of the first groove 11 and the second groove 21, that is, temperature detection elements are provided on both the housing 10 and the cover 20, for detecting the temperature on both sides of the wire respectively.

[0041] Of course, in other embodiments, the temperature detection element may be provided only on the side wall of the first groove 11, that is, only on one side of the housing 10; or the temperature detection element may be provided only on the side wall of the second groove 21, that is, only on one side of the cover 20. As long as the temperature of the wire can be detected, the present invention does not limit the position of the temperature detection element.

[0042] Furthermore, to detect the current in the conductor, a clamping member is also embedded in the housing 10. The cover 20 is provided with a clearance cavity 23 to avoid the clamping member. The clamping member is used to clamp the conductor. A current detection element is also provided inside the housing 10. The current detection element is connected to the clamping member and is used to detect the current in the conductor. It is understood that in this embodiment, the current detection element is also integrated into the housing 10. During installation, the clamping member and the through hole 18 jointly clamp the conductor. In this embodiment, the hole in the clamping member and the through hole 18 are coaxially arranged.

[0043] Specifically, the temperature sensing element is a platinum resistance sensor (not shown). The platinum resistance sensor is embedded in the sidewall of the first groove 11 and / or the second groove 21. It can be understood that the platinum resistance sensor is a sensor that measures temperature by utilizing the property that the resistance value of metallic platinum (Pt) changes with temperature, and detects the temperature by indicating the temperature value corresponding to the resistance value of the platinum resistance.

[0044] In this embodiment, platinum resistance sensors are provided on the sidewalls of both the first groove 11 and the second groove 21 for temperature detection on both sides of the wire. Optionally, in other embodiments, platinum resistance sensors may be provided only on the sidewall of the first groove 11; or only on the sidewall of the second groove 21. This invention does not limit this.

[0045] Furthermore, the sidewalls of the first groove 11 and / or the second groove 21 are provided with a receiving cavity 111, a wire passage hole 113, and a lead wire groove 112. The receiving cavity 111 is used to place and fix the platinum resistance sensor. The wire passage hole 113 is a through hole that communicates with the interior of the housing 10. The two ends of the lead wire groove 112 are respectively connected to the receiving cavity 111 and the wire passage hole 113. During installation, the platinum resistance sensor is installed and fixed in the receiving cavity 111, the signal wire of the platinum resistance sensor is placed in the lead wire groove 112, and the signal wire of the platinum resistance sensor is passed through the wire passage hole 113 and extended into the interior of the housing 10 or the cover 20 to connect with the internal electrical components and realize the signal transmission function.

[0046] In this embodiment, a receiving cavity 111, a wire passage hole 113, and a lead wire groove 112 are provided on the sidewalls of both the first groove 11 and the second groove 21. In other embodiments, the receiving cavity 111, the wire passage hole 113, and the lead wire groove 112 may be provided only on the first groove 11, or only on the second groove 21. The specific design can be based on the position of the platinum resistance sensor, and this utility model does not limit this.

[0047] Furthermore, the platinum resistance sensor is also equipped with a sealing cover. The sealing cover is fixedly connected to the first groove 11 and / or the second groove 21. It can be understood that by setting the sealing cover, the platinum resistance sensor can be limited and fixed, preventing the platinum resistance sensor from falling off, and also protecting the platinum resistance sensor.

[0048] In this embodiment, sealing covers are provided on the sidewalls of both the first groove 11 and the second groove 21. In other embodiments, sealing covers may be provided only on the first groove 11 or only on the second groove 21. The specific design can be based on the position of the platinum resistance sensor, and this utility model does not limit this.

[0049] Specifically, to prevent the heat from the wires from affecting the interior of the housing 10, a heat-insulating pad is provided on the side wall of the first groove 11. In this embodiment, the first groove 11 is a "V" shaped groove, including two opposing side walls. A platinum resistance sensor is embedded in one side wall of the first groove 11, and a heat-insulating pad is provided on the other side wall of the first groove 11.

[0050] To protect the wire, in this embodiment, a wire protection sleeve 211 is also provided on the side wall of the second groove 21. Specifically, the wire protection sleeve 211 can be set as an elastic structure such as a rubber ring to avoid rigid contact between the cover 20 and the housing 10 and the wire, which could lead to wire damage.

[0051] To facilitate the clamping of the wire, in this embodiment, the clamping components include a first clamping component 12 and a second clamping component 22. The first clamping component 12 is embedded within the housing 10. The second clamping component 22 is rotatably connected to the first clamping component 12. The second clamping component 22 is located at the end of the first clamping component 12 near the cover 20. A clearance cavity 23 is used to allow the second clamping component 22 to pass through. Both the first clamping component 12 and the second clamping component 22 have arc grooves so that when the first clamping component 12 and the second clamping component 22 are pressed together, the two arc grooves merge to form a circular hole. It can be understood that when the cover 20 and the housing 10 are separated, the second clamping component 22 also separates relative to the first clamping component 12, so that when the wire is placed in the first groove 11, it can also be placed in the arc groove of the first clamping component 12. During clamping, the second clamping component 22 is first rotated to fit against the first clamping component 12, and the first clamping component 12 and the second clamping component 22 are fixed by bolts. Then rotate the cover 20 to fit against the housing 10, so that the second clamping member 22 enters the clearance cavity 23 of the cover 20. Then fix the cover 20 and the housing 10 with bolts to complete the installation and fixation of the sensor.

[0052] Specifically, in this embodiment, the current detection element is connected to the first clamping element 12. The current detection element is a Hall sensor. The Hall sensor is disposed inside the housing 10 and is used to detect the current of the wire clamped by the clamping element.

[0053] Furthermore, an equipotential bonding hole 212 is provided on the cover 20. The equipotential bonding hole 212 extends through the cover 20. One end of the equipotential bonding hole 212 is connected to the second groove 21. The other end of the equipotential bonding hole 212 is located at the end of the cover 20 away from the housing 10. It can be understood that by providing the equipotential bonding hole 212 through which the connecting wire passes, the potential at both ends is made the same, which is used for the anti-static design of the housing 10 and the cover 20.

[0054] Furthermore, a pressure balancing hole 13 is provided on the side of the housing 10 near the cover 20. It can be understood that by providing the pressure balancing hole 13, the air pressure inside the housing 10 can be balanced, so that the air pressure inside the housing 10 is the same as that outside.

[0055] Please refer to Figure 3 Specifically, in this embodiment, a battery 14 and a PCB board 15 are installed inside the housing 10. It is understood that the battery 14 powers the platinum resistance sensor and the Hall sensor, and the PCB board 15 is electrically connected to the platinum resistance sensor and the Hall sensor to achieve signal transmission.

[0056] Furthermore, an antenna 16 and an antenna cover 17 are provided on the side of the housing 10 away from the cover 20. One end of the antenna 16 is connected to the housing 10. The antenna cover 17 is fixedly connected to the housing 10 to seal the antenna 16. Specifically, a sealing element is provided between the antenna cover 17 and the housing 10.

[0057] The beneficial effects of the wire temperature and current sensor 100 provided in this embodiment of the present invention include:

[0058] The wire temperature and current sensor 100 of this utility model includes a housing 10 and a cover 20. A first groove 11 is formed on one side of the housing 10, extending through the housing 10. The cover 20 is drive-connected to the housing 10, allowing the cover 20 to rotate and press against the housing 10 or separate from the housing 10. A second groove 21 is formed on the side of the cover 20 near the housing 10, extending through the cover 20. When the housing 10 and cover 20 are pressed together, the first groove 11 and the second groove 21 together form a wire-passing hole 18 for threading a wire. A temperature sensing element is provided on the sidewall of the first groove 11 and / or the second groove 21 for detecting the temperature of the wire. A clamping member is also embedded in the housing 10. A clearance cavity 23 is provided on the cover 20 to avoid the clamping member. The clamping member is used to clamp the wire. A current sensing element is also provided inside the housing 10. The current sensing element is connected to the clamping member and is used to detect the current in the wire. During installation, by rotating the housing 10 and cover 20, the wire is placed in the first groove 11, and the cover 20 is rotated to press the housing 10 together. The second groove 21 and the first groove 11 together hold the wire, enabling rapid sensor installation. By integrating the temperature sensor and current sensor into the housing 10 and cover 20, integrated temperature and current detection can be achieved, avoiding multiple sensor installations and improving installation and detection efficiency. This invention enables rapid sensor installation and removal, simultaneous temperature and current detection of the wire, improving installation and detection efficiency, and reducing the space occupied by the sensor.

[0059] The above description is only a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A wire temperature and current sensor, characterized in that, include: The housing has a first groove on one side, which extends through the housing. The cover is rotatably connected to the housing so that the cover can rotate to press against the housing or separate from the housing. A second groove is provided on the side of the cover near the housing, and the second groove passes through the cover. When the housing and the cover are pressed together, the first groove and the second groove together form a wire hole for threading wires. Temperature detection elements are provided on the sidewalls of the first groove and / or the second groove for detecting the temperature of the wires. The housing is also fitted with a clamping member, and the cover is provided with a clearance cavity for avoiding the clamping member. The clamping member is used to clamp the wire. The housing is also provided with a current detection member, which is connected to the clamping member and is used to detect the current of the wire.

2. The conductor temperature and current sensor according to claim 1, characterized in that, The temperature detection element is a platinum resistance sensor, which is embedded in the sidewall of the first groove and / or the second groove.

3. The wire temperature and current sensor according to claim 2, characterized in that, The first groove and / or the second groove have a receiving cavity, a wire passage hole and a lead wire groove on their sidewalls. The receiving cavity is used to place the platinum resistance sensor. The wire passage hole is a through hole that communicates with the inside of the housing or the cover. The two ends of the lead wire groove are respectively connected to the receiving cavity and the wire passage hole.

4. The wire temperature and current sensor according to claim 2, characterized in that, The platinum resistance sensor is also provided with a sealing cover plate, which is fixedly connected to the first groove and / or the second groove.

5. The conductor temperature and current sensor according to claim 1, characterized in that, The clamping member includes a first clamping member and a second clamping member. The first clamping member is embedded in the housing, and the second clamping member is rotatably connected to the first clamping member. The second clamping member is disposed at one end of the first clamping member near the cover. The clearance cavity is used to avoid the second clamping member. Both the first clamping member and the second clamping member are provided with arc grooves so that when the first clamping member and the second clamping member are pressed together, the two arc grooves merge to form a circular hole.

6. The conductor temperature and current sensor according to claim 1, characterized in that, The current detection device is a Hall sensor.

7. The conductor temperature and current sensor according to claim 1, characterized in that, An equipotential hole is provided on the cover, the equipotential hole penetrates the cover, one end of the equipotential hole is connected to the second groove, and the other end of the equipotential hole is located at the end of the cover away from the shell.

8. The conductor temperature and current sensor according to claim 1, characterized in that, The shell also has a pressure balancing hole on the side near the cover.

9. The conductor temperature and current sensor according to claim 1, characterized in that, The housing contains a battery and a PCB board.

10. The conductor temperature and current sensor according to claim 1, characterized in that, An antenna and an antenna cover are also provided on the side of the housing away from the cover. One end of the antenna is connected to the housing, and the antenna cover is fixedly connected to the housing to seal the antenna.

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