Intelligent high-voltage switch cabinet contact temperature monitoring device
By installing wireless temperature sensors on the outside of the high-voltage switchgear and using a slot and locking mechanism, the problems of troublesome internal installation and signal shielding are solved, achieving efficient signal transmission and stable temperature monitoring.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN XINDERUI ELECTRIC TECH CO LTD
- Filing Date
- 2025-08-05
- Publication Date
- 2026-07-14
AI Technical Summary
Existing wireless temperature sensors are difficult to install inside high-voltage switchgear, and signal transmission is affected by shielding, resulting in low installation efficiency and signal interference.
An intelligent high-voltage switchgear contact temperature monitoring device was designed. By installing a wireless temperature sensor on the outside of the cabinet, and using a slot, cover and locking mechanism to fix the wireless temperature sensor and transmit signals, interference from internal installation is avoided.
This technology enables external installation of wireless temperature sensors, improving installation efficiency and ensuring smooth signal transmission, while avoiding the hassles and signal shielding issues associated with internal installation.
Smart Images

Figure CN224499727U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of switchgear technology, specifically to an intelligent high-voltage switchgear contact temperature monitoring device. Background Technology
[0002] With the rapid development of the national economy, the demand for electricity from all sectors is increasing. Therefore, the safe and reliable operation of power equipment is a crucial aspect of ensuring the safety of the power grid. Intelligent high-voltage switchgear is one of the important pieces of equipment in substations. Most high-voltage switchgear adopts an enclosed structure, resulting in poor heat dissipation.
[0003] To ensure the safety of the contacts inside high-voltage switchgear, wireless temperature sensors are usually installed at the contact points. However, the installation of wireless temperature sensors now needs to be completed inside the cabinet. The process involves the use of components such as steel cable ties, making the installation quite troublesome. Furthermore, wireless temperature sensors completely installed inside the cabinet are shielded by the cabinet itself (such as stainless steel or galvanized steel plates), affecting signal transmission. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide an intelligent high-voltage switchgear contact temperature monitoring device that can be installed externally and avoids affecting signal transmission, so as to solve the problems mentioned in the background art.
[0005] This utility model is achieved through the following technical solution: an intelligent high-voltage switchgear contact temperature monitoring device, including a cabinet and a wireless temperature sensor. One side of the cabinet is recessed inward and forms a groove near the contact point. The outer wall of the groove is provided with an installation port communicating with the inner cavity of the cabinet. The wireless temperature sensor is set in the installation port, and the detection end of the wireless temperature sensor extends into the interior of the cabinet and is set near the contact point. The groove is provided with a positioning groove on the outside of the installation port. A cover is inserted into the positioning groove to cover the wireless temperature sensor. A locking mechanism is installed at one end of the cover to fix the cover and simultaneously press the wireless temperature sensor.
[0006] As a preferred technical solution, limit plates are installed on both sides of the inner wall of the tank at the installation port. The limit plates are all set in an "L" shape, and one end of the limit plate extends to the end face of the wireless temperature sensor and abuts against it.
[0007] As a preferred technical solution, the locking mechanism includes a screw, a handwheel, a sealed bearing, and a clamping ring. The outer end face of the cover is provided with a mounting hole, and the sealed bearing is installed in the mounting hole. The outer wall of the groove is provided with a screw hole opposite to the inner ring of the sealed bearing. The screw is installed in the inner ring of the sealed bearing. One end of the screw is threaded into the screw hole, and the other end extends to the outside and is fixedly connected to the handwheel. The clamping ring is installed on the screw, and one side of the clamping ring is set to abut against the outer end face of the wireless temperature sensor.
[0008] As a preferred technical solution, one end of the mounting port is provided with an arc-shaped groove, and the cover is provided with a through hole directly opposite the arc-shaped groove. The antenna on the wireless temperature sensor is set in the arc-shaped groove, and one end of the antenna extends through the through hole to the outside. A sealing ring is installed on the inner wall of the through hole, and the sealing ring is set to abut against the outer wall of the antenna.
[0009] As a preferred technical solution, a rubber layer is installed on the inner wall of the mounting port, the rubber layer is set to abut against the outer side of the wireless temperature sensor, and the wireless temperature sensor is connected to the power supply inside the cabinet through a guide.
[0010] As a preferred technical solution, the positioning groove is set in a frame-shaped structure and matches the end face of the cover.
[0011] The beneficial effects of this utility model are: the utility model has a simple structure, can install a wireless temperature sensor on the outside along the mounting port, and after the cover is covered, the screw can simultaneously fix the cover and press the wireless temperature sensor, which increases efficiency. In addition, the antenna on the wireless temperature sensor can extend to the outside through the through hole, avoiding interference with signal transmission. Attached Figure Description
[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a side view of the present invention;
[0015] Figure 3 This is a schematic diagram of the structure of this utility model after the cover is removed;
[0016] Figure 4 This is a schematic diagram of the structure of the cover of this utility model.
[0017] The components include: 1. Cabinet; 2. Slot; 3. Wireless temperature sensor; 4. Limiting plate; 5. Cover; 6. Handwheel; 7. Screw; 8. Pressure ring; 9. Positioning slot; 10. Through hole; 11. Sealed bearing. Detailed Implementation
[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0019] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.
[0020] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.
[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model discloses an intelligent high-voltage switchgear contact temperature monitoring device, comprising a cabinet 1 and a wireless temperature sensor 3. One side of the cabinet 1 is recessed inward to form a groove 2 near the contact point. The outer wall of the groove 2 is provided with an installation port communicating with the inner cavity of the cabinet 1. The wireless temperature sensor 3 is disposed in the installation port, and the detection end of the wireless temperature sensor 3 extends into the interior of the cabinet 1 and is disposed near the contact point. The groove 2 is provided with a positioning groove 9 on the outside of the installation port. A cover 5 is inserted into the positioning groove 9 to cover the wireless temperature sensor 3. A locking mechanism is installed at one end of the cover 5 to fix the cover 5 and simultaneously press the wireless temperature sensor 3 tightly. The wireless temperature sensor, which is close to the contact, can detect the temperature of the contact at all times to ensure the safety of the internal contact operation.
[0022] In this embodiment, limit plates 4 are installed on both sides of the inner wall of the tank 2 at the installation port. The limit plates 4 are all L-shaped and one end of each limit plate 4 extends to the end face of the wireless temperature sensor 3 and abuts against it.
[0023] In this embodiment, the locking mechanism includes a screw 7, a handwheel 6, a sealed bearing, and a clamping ring 8. The outer end face of the cover 5 is provided with a mounting hole, and the sealed bearing is installed in the mounting hole. The outer wall of the groove 2 is provided with a screw hole opposite to the inner ring of the sealed bearing. The screw 7 is installed in the inner ring of the sealed bearing. One end of the screw 7 is threaded into the screw hole, and the other end extends to the outside and is fixedly connected to the handwheel 6. The clamping ring 8 is installed on the screw 7, and one side of the clamping ring 8 is set to abut against the outer end face of the wireless temperature sensor 3.
[0024] In this embodiment, one end of the mounting port is provided with an arc-shaped groove, and the cover 5 is provided with a through hole 10 opposite to the arc-shaped groove. The antenna on the wireless temperature sensor 3 is set in the arc-shaped groove, and one end of the antenna extends through the through hole 10 to the outside. A sealing ring is installed on the inner wall of the through hole 10, and the sealing ring is set to abut against the outer wall of the antenna.
[0025] In this embodiment, a rubber layer is installed on the inner wall of the mounting port. The rubber layer is set to abut against the outer side of the wireless temperature sensor 3. The wireless temperature sensor 3 is connected to the power supply inside the cabinet 1 through a guide. The rubber layer increases the sealing between the mounting port and the wireless temperature sensor, preventing the entry of external impurities. The sealing ring increases the sealing between the through hole and the antenna.
[0026] The housing can be equipped with wiring holes, allowing the wires on the wireless temperature sensor to extend to the outside through the wiring holes, so that wiring and installation can be completed entirely from the outside, but wiring is troublesome.
[0027] In this embodiment, the positioning groove 9 is set in a frame structure and matches the end face of the cover 5, which increases the stability between the positioning groove and the cover and avoids the swaying of the cover.
[0028] During installation, the wireless temperature sensor can be inserted into the cabinet through the mounting port until the inner end face of the wireless temperature sensor contacts the limiting plate. Then, the open end of the cover is inserted into the positioning slot. The antenna on the wireless temperature sensor is set through the through hole on the cover so that the antenna can be exposed, thus avoiding interference with signal transmission.
[0029] Rotate the handwheel, which drives the screw, allowing it to be threaded into the screw hole. As the screw moves, it moves the cover, firmly pressing it against the positioning groove. Simultaneously, the screw also drives the clamping ring, pressing one side of the clamping ring against the outer end face of the wireless temperature sensor, thus securing the wireless temperature sensor.
[0030] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions conceived without inventive effort should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope defined in the claims.
Claims
1. An intelligent high-voltage switchgear contact temperature monitoring device, characterized in that: The device includes a cabinet (1) and a wireless temperature sensor (3). One side of the cabinet (1) is recessed inward and forms a groove (2) near the contact point. The outer wall of the groove (2) is provided with an installation port that communicates with the inner cavity of the cabinet (1). The wireless temperature sensor (3) is placed in the installation port, and the detection end of the wireless temperature sensor (3) extends into the interior of the cabinet (1) and is placed near the contact point. The groove (2) is provided with a positioning groove (9) on the outside of the installation port. A cover (5) is inserted into the positioning groove (9) to cover the wireless temperature sensor (3). One end of the cover (5) is provided with a locking mechanism that fixes the cover (5) and simultaneously presses the wireless temperature sensor (3) tightly.
2. The intelligent high-voltage switchgear contact temperature monitoring device according to claim 1, characterized in that: Limiting plates (4) are installed on both sides of the inner wall of the tank (2) at the installation port. The limiting plates (4) are all set in an "L" shape. One end of the limiting plates (4) extends to the end face of the wireless temperature sensor (3) and abuts against it.
3. The intelligent high-voltage switchgear contact temperature monitoring device according to claim 1, characterized in that: The locking mechanism includes a screw (7), a handwheel (6), a sealed bearing, and a clamping ring (8). The outer end face of the cover (5) is provided with a mounting hole, and the sealed bearing is installed in the mounting hole. The outer wall of the groove (2) is provided with a screw hole opposite to the inner ring of the sealed bearing. The screw (7) is installed in the inner ring of the sealed bearing. One end of the screw (7) is threaded into the screw hole, and the other end extends to the outside and is fixedly connected to the handwheel (6). The clamping ring (8) is installed on the screw (7), and one side of the clamping ring (8) is set to abut against the outer end face of the wireless temperature sensor (3).
4. The intelligent high-voltage switchgear contact temperature monitoring device according to claim 1, characterized in that: One end of the mounting port is provided with an arc-shaped groove, and the cover (5) is provided with a through hole (10) opposite the arc-shaped groove. The antenna on the wireless temperature sensor (3) is set in the arc-shaped groove, and one end of the antenna extends through the through hole (10) to the outside. A sealing ring is installed on the inner wall of the through hole (10), and the sealing ring is set to abut against the outer wall of the antenna.
5. The intelligent high-voltage switchgear contact temperature monitoring device according to claim 1, characterized in that: A rubber layer is installed on the inner wall of the mounting port. The rubber layer is set to abut against the outer side of the wireless temperature sensor (3), and the wireless temperature sensor (3) is connected to the power supply inside the cabinet (1) through a guide.
6. The intelligent high-voltage switchgear contact temperature monitoring device according to claim 1, characterized in that: The positioning groove (9) is set in a frame structure and matches the end face of the cover (5).