An electrical joint overheating monitoring device for an electrical apparatus

Abstract

The utility model relates to temperature monitoring technical field especially relates to a kind of electrical equipment electrical joint overheating monitoring device, including substrate and temperature sensor, the substrate front side is equipped with terminal block, the temperature sensor is fixedly installed in the terminal end of terminal block by fastening piece, the terminal block top end is equipped with support frame, the temperature sensor top end is fixedly installed with support rod, the support rod outside is sleeved with elastic sleeve. By setting support frame, the card on elastic sleeve is inserted into support groove inside, the card is clamped using the two sides of support groove inner wall, according to the number of terminal end repeats above-mentioned step, so that multiple monitoring devices are fixed on support frame, then support frame is attracted on substrate by magnet on support plate, so that the fastening piece of temperature sensor bottom end is aligned with the terminal end on terminal block, multiple temperature sensors can be pre-fixed, and it is convenient for staff to install monitoring device in limited internal space.

Description

Technical Field

[0001] This utility model relates to the field of temperature monitoring technology, and in particular to an overheat monitoring device for electrical joints of electrical equipment. Background Technology

[0002] With the increasing automation of China's industrial production, the shift from emergency repairs to preventative maintenance of power equipment has become a focus of attention and research in the power generation, supply, and consumption industries. During long-term operation, critical equipment in power plants and substations, such as high-voltage switchgear, busbar joints, and indoor / outdoor disconnect switches, experience surface oxidation and corrosion, loosening of fastening bolts due to thermal expansion and contraction, and aging of contacts and busbar connections. These issues lead to increased contact resistance at electrical equipment joints. With the rapid development of the national economy and increasing loads, these factors can easily cause excessive temperature rise in electrical equipment. If not addressed promptly, this can degrade the performance of insulation components, even leading to breakdown and serious accidents, resulting in significant economic losses. In recent years, numerous switch overheating accidents have occurred in power plants and substations, causing fires and large-scale power outages. Addressing switch overheating is crucial to preventing such accidents. The use of overheat monitoring devices at electrical terminals is necessary to monitor temperatures online, which is an important means of ensuring the safety of high-voltage equipment.

[0003] The existing monitoring device fixes the sensor to the electrical terminal with a wire screw. Since the electrical terminal often has multiple terminals, the operator needs to hold the monitoring device to stabilize it before tightening the wire screw. However, the monitoring device is small and requires both hands to operate in the confined space of the same electrical terminal, making it inconvenient to operate during installation. Utility Model Content

[0004] This invention provides an overheat monitoring device for electrical joints in electrical equipment to solve the problems mentioned above.

[0005] This utility model provides an overheat monitoring device for electrical connectors in electrical equipment, including a base plate and a temperature sensor. A terminal block is provided on the front side of the base plate. The temperature sensor is fixedly installed on the terminal block's terminal end via a fastening piece. A support frame is provided at the top of the terminal block. A support rod is fixedly installed at the top of the temperature sensor. An elastic sleeve is sleeved on the outer side of the support rod. Multiple support grooves are formed on one side of the support frame. A card that engages with the support groove is fixedly installed on one side of the elastic sleeve. A wire-passing groove is formed on the side of the support frame away from the support groove. A support plate is fixedly installed at the bottom of the support frame. Magnets located on both sides of the wire-passing groove are fixedly installed on one side of the support plate. The distance between the two sides of the inner wall of the support groove is less than the width of the card.

[0006] Preferably, the distance between the inner walls at the opening of the support groove is less than the distance between its inner walls.

[0007] Preferably, the card has grooves on both sides.

[0008] Preferably, the width of the top of the card is greater than the width of its bottom.

[0009] Preferably, an auxiliary plate is provided on one side of the support frame, and a support plate fixedly installed on the side of the support frame near the auxiliary plate is fixedly installed at the bottom end of the auxiliary plate. A slot is provided on one side of the auxiliary plate, and one side of the support frame extends into the inner plate of the slot.

[0010] The technical solution provided by this utility model embodiment has the following advantages compared with the prior art:

[0011] 1. The device provided by this utility model, by setting a support frame, when it is necessary to install an electrical overheat monitoring device, firstly, the elastic sleeve is put on the outside of the support rod for fixation, then the card on the elastic sleeve is inserted into the support groove, and the card is clamped by the two sides of the inner wall of the support groove. The above steps are repeated according to the number of terminals, so that multiple monitoring devices are fixed on the support frame. Then, the support frame is attracted to the base plate by the magnet on the support plate, so that the fastening piece at the bottom of the temperature sensor is aligned with the terminal on the terminal block, thus realizing the pre-fixation of multiple temperature sensors. Then, the wire clamping screw is tightened to complete the installation, which makes it convenient for staff to install monitoring devices in limited internal space and improves convenience.

[0012] 2. The device provided by this utility model, through the elastic sleeve and the support rod, since the elastic sleeve can move along the entire length of the support rod, the distance between the elastic sleeve and the temperature sensor is adjustable, which prevents the fastening plate from being unable to be effectively aligned with the terminal block when the placement height of the support frame inside the junction box is limited, thus improving adaptability.

[0013] 3. The device provided by this utility model, by setting an auxiliary plate, when the auxiliary plate is sleeved on one side of the support frame, if the length of the support frame is too long and cannot be put into the junction box, one side of the support frame can be cut to make it shorter, and then the cut side of the support frame can be re-inserted into the slot on the auxiliary plate, thereby realizing the adjustment of the length of the support frame and further improving the adaptability. Attached Figure Description

[0014] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0015] 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, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the temperature sensor structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the support frame structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the card structure of this utility model.

[0020] In the diagram: 1. Base plate; 11. Terminal block; 2. Temperature sensor; 21. Fastening piece; 22. Support rod; 23. Elastic sleeve; 24. Card; 3. Support frame; 31. Support groove; 32. Support plate; 33. Magnet; 34. Wire groove; 4. Auxiliary plate; 41. Slot; 5. Slide. Detailed Implementation

[0021] 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, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0022] Various embodiments of this utility model may exist in the form of a range. It should be understood that the description in the form of a range is merely for convenience and brevity and should not be construed as a rigid limitation on the scope of this utility model. Therefore, it should be considered that the range description has specifically disclosed all possible sub-ranges and single numerical values ​​within that range. For example, it should be considered that the range description from 1 to 6 has specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., and single numbers within the range, such as 1, 2, 3, 4, 5, and 6, regardless of the range. In addition, whenever a numerical range is indicated in this utility model, it means including any referenced number (fraction or integer) within the indicated range. Unless otherwise specified, all raw materials, reagents, instruments, and equipment used in this utility model can be purchased commercially or prepared using existing equipment.

[0023] In this invention, unless otherwise stated, directional terms such as "upper" and "lower" specifically refer to the directions shown in the accompanying drawings. Furthermore, in this invention, terms such as "comprising" and "including" mean "including but not limited to." In this invention, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. In this invention, "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. A and B can be singular or plural. In this invention, "at least one" means one or more, and "more than one" means two or more. "At least one," "at least one of the following," or similar expressions refer to any combination of these items, including any combination of a single item or a plural item. For example, "at least one of a, b, or c", or "at least one of a, b, and c", can both mean: a, b, c, ab, i.e., a and b, ac, bc, or abc, where a, b, and c can be a single or multiple.

[0024] like Figures 1-4 As shown, an overheat monitoring device for electrical connectors of electrical equipment includes a base plate 1 and a temperature sensor 2. A terminal block 11 is provided on the front side of the base plate 1. The temperature sensor 2 is fixedly installed on the terminal block 11 by a fastening piece 21. A support frame 3 is provided at the top of the terminal block 11. A support rod 22 is fixedly installed at the top of the temperature sensor 2. An elastic sleeve 23 is sleeved on the outside of the support rod 22. Multiple sets of support grooves 31 are opened on one side of the support frame 3. A card 24 that engages with the support groove 31 is fixedly installed on one side of the elastic sleeve 23. A wire passage groove 34 is opened on the side of the support frame 3 away from the support groove 31. A support plate 32 is fixedly installed at the bottom of the support frame 3. Magnets 33 located on both sides of the wire passage groove 34 are fixedly installed on one side of the support plate 32. The distance between the two sides of the inner wall of the support groove 31 is less than the width of the card 24.

[0025] like Figure 2 and Figure 3 The distance between the inner walls at the opening of the support groove 31 is less than the distance between its inner walls.

[0026] Specifically: Increase the clamping force of the inner wall of the support groove 31 on the card 24.

[0027] like Figure 4 Card 24 has grooves 5 on both sides.

[0028] Specifically: the engagement of the slide groove 5 with the support groove 31 increases the fastness of the card 24 inside the support groove 31.

[0029] like Figure 4 The top width of card 24 is greater than the bottom width.

[0030] Specifically: Increase the fastening of the card 24 inside the support slot 31.

[0031] like Figure 3 Auxiliary plate 4 is provided on one side of support frame 3. Support plate 32 is fixedly installed on the bottom end of auxiliary plate 4 near the side of support frame 3. Slot 41 is provided on one side of auxiliary plate 4. One side of support frame 3 extends into the inner plate of slot 41.

[0032] Specifically: By using the auxiliary plate 4, one side of the support frame 3 can be cut to shorten the support frame 3. Then, the cut side of the support frame 3 can be re-inserted into the slot 41 on the auxiliary plate 4, thereby adjusting the length of the support frame 3 and further improving its adaptability.

[0033] Operating principle: When installing an electrical overheat monitoring device, first, the elastic sleeve 23 is fixed to the outside of the support rod 22. Then, the clip 24 on the elastic sleeve 23 is inserted into the support groove 31, and the clip 24 is clamped by the inner walls of the support groove 31. Repeat the above steps according to the number of terminals to fix multiple monitoring devices on the support frame 3. Then, the support frame 3 is attracted to the base plate 1 by the magnet 33 on the support plate 32. Align the fastening piece 21 at the bottom of the temperature sensor 2 with the terminal on the terminal block 11 to achieve pre-fixation of multiple temperature sensors 2. Finally, tighten the wire clamping screw to complete the installation. This allows workers to operate the device in limited conditions. The internal space is equipped with a monitoring device to improve convenience; since the elastic sleeve 23 can move along the entire length of the support rod 22, the distance between the elastic sleeve 23 and the temperature sensor 2 is adjustable, preventing the fastening piece 21 from being unable to effectively align with the terminal block 11 when the placement height of the support frame 3 inside the junction box is limited, thus improving adaptability; when the auxiliary plate 4 is sleeved on one side of the support frame 3, if the length of the support frame 3 is too long to fit inside the junction box, one side of the support frame 3 can be cut to shorten it, and then the cut side of the support frame 3 can be re-inserted into the slot 41 on the auxiliary plate 4 to adjust the length of the support frame 3, further improving adaptability.

[0034] It is worth noting that when selecting and preparing the treatment solution, it is necessary to choose a solution that can chemically react with the pollutants in the waste gas, based on the type and nature of the pollutants. Common solutions include acids, alkalis, oxidants, and reducing agents. The selected solutions are then prepared into an absorbent solution according to a certain proportion to ensure that the absorbent solution has sufficient absorption capacity and stability.

[0035] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined in this utility model may be implemented in other embodiments without departing from the spirit or scope of this utility model. Therefore, this utility model is not to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and novel features claimed in this utility model.

Claims

1. An overheat monitoring device for electrical connectors of electrical equipment, comprising a base plate (1) and a temperature sensor (2), wherein a terminal block (11) is provided on the front side of the base plate (1), and the temperature sensor (2) is fixedly installed on the terminal block (11) by a fastening piece (21), characterized in that: The terminal block (11) is provided with a support frame (3) at the top. The temperature sensor (2) is fixedly installed with a support rod (22) at the top. An elastic sleeve (23) is sleeved on the outside of the support rod (22). Multiple support grooves (31) are opened on one side of the support frame (3). A card (24) that engages with the support groove (31) is fixedly installed on one side of the elastic sleeve (23). A wire-passing groove (34) is opened on the side of the support frame (3) away from the support groove (31). A support plate (32) is fixedly installed at the bottom of the support frame (3). Magnets (33) located on both sides of the wire-passing groove (34) are fixedly installed on one side of the support plate (32). The distance between the two sides of the inner wall of the support groove (31) is less than the width of the card (24).

2. The electrical equipment electrical joint overheat monitoring device according to claim 1, characterized in that: The distance between the inner walls at the opening of the support groove (31) is less than the distance between its inner walls.

3. The electrical equipment electrical joint overheat monitoring device according to claim 2, characterized in that: The card (24) has grooves (5) on both sides.

4. The electrical equipment overheat monitoring device according to claim 1, characterized in that: The width of the top of the card (24) is greater than the width of its bottom.

5. An overheat monitoring device for electrical connections of electrical equipment according to any one of claims 1 to 4, characterized in that: The support frame (3) has an auxiliary plate (4) on one side. The support plate (32) of the support frame (3) is fixedly installed on the bottom end of the auxiliary plate (4) near the auxiliary plate (4). The auxiliary plate (4) has a slot (41) on one side. The support frame (3) extends into the slot (41) on one side.

Images