CN220288811U - Passive temperature measuring device for low voltage - Google Patents

Abstract

The utility model relates to a passive temperature measuring device for low voltage, which comprises a supporting plate and a box body, wherein a circuit board and an antenna electrically connected with the circuit board are arranged in the box body, the circuit board is electrically connected with a plurality of transmission lines, one end of each transmission line, which is far away from the circuit board, is connected with a passive temperature sensor, two first connecting plates which are oppositely arranged are arranged at the bottom of the box body, two second connecting plates which are oppositely arranged are arranged at the top of the supporting plate and are rotatably connected with the first connecting plates through rotating shafts, a plurality of groups of connecting holes are formed at the bottom of the supporting plate, anchor clamps are inserted in the connecting holes, the two ends of each anchor clamp are screw rods, and screw nuts are connected with screw threads; the utility model can greatly reduce the cost of temperature monitoring of low-voltage equipment by enabling a plurality of passive temperature sensors to share the same antenna and circuit board.

Description

Passive temperature measuring device for low voltage

Technical Field

The utility model relates to the technical field of temperature monitoring, in particular to a passive temperature measuring device for low voltage.

Background

In the whole transmission process from a power plant to power transmission equipment and an electric appliance of an end user in a power system, a large number of harmful temperatures need to be monitored and early warned, and low-voltage equipment junction parts such as terminal box cable heads, various switches, miniature circuit breakers, cable sleeve clamps, cable interfaces and the like can cause fault hidden dangers of overhigh temperature rise due to factors such as material aging, poor contact, current overload and the like, so that the junction parts need to be monitored on line. Since the low-voltage equipment has many junction points, a plurality of passive temperature sensors are required to monitor the temperature at the junction points.

At present, in order to remotely transmit temperature data, an antenna and a circuit board are required to be installed on each passive temperature sensor, so that the cost of temperature monitoring of low-voltage equipment is greatly increased.

Disclosure of Invention

The utility model aims to design a passive temperature measuring device for low voltage, so that the problems in the background technology can be solved.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a passive temperature measuring device that low pressure was used, includes backup pad and box body, the inside of box body be equipped with the circuit board and with the antenna that the circuit board electricity is connected is respectively one, the circuit board electricity is connected with a plurality of transmission lines, the transmission line is kept away from the one end of circuit board is connected with passive temperature sensor, the bottom of box body is equipped with the first connecting plate that two relative settings, the top of backup pad is equipped with the second connecting plate that two relative settings, the second connecting plate through the pivot with first connecting plate rotates to be connected, the bottom of backup pad is equipped with a plurality of groups connecting hole, the downthehole staple bolt that has inserted of connecting, the both ends of staple bolt are the screw rod, screw threaded connection has the nut.

Further, two the second connecting plates are located two between the first connecting plates, positioning holes are formed in the side faces of the first connecting plates, the positioning holes are formed in a plurality of arc-shaped arrangement, arc-shaped protruding blocks are arranged on the side faces, close to the first connecting plates, of the second connecting plates, and the protruding blocks are arranged corresponding to the positioning holes.

Further, a groove matched with the anchor ear is formed in the bottom of the supporting plate.

Furthermore, an anti-slip soft cushion is arranged in the groove.

Further, three transmission lines are arranged.

Further, the connecting holes are provided with two groups.

The beneficial effects of the utility model are as follows:

the inside of the box body is provided with a circuit board and an antenna electrically connected with the circuit board, the circuit board is electrically connected with a plurality of transmission lines, one end of each transmission line far away from the circuit board is connected with a passive temperature sensor, and the cost of monitoring the temperature of low-voltage equipment is greatly reduced by enabling a plurality of passive temperature sensors to share the same antenna and circuit board;

the bottom of the supporting plate is provided with a plurality of groups of connecting holes, hoops are inserted into the connecting holes, the two ends of each hoop are screw rods, screw rods are in threaded connection with nuts, the hoops penetrate through an electric connecting cylinder of low-voltage equipment, and then the nuts are screwed down to enable the hoops and the supporting plate to be pressed and fixed on the electric connecting cylinder of the low-voltage equipment, so that the box body is fixed, and mess caused by mess of placing the box body is avoided;

the bottom at the box body is equipped with two first connecting plates that set up relatively, and the top of backup pad is equipped with two second connecting plates that set up relatively, and the second connecting plate rotates through pivot and first connecting plate to be connected, and the backup pad can be through the angle of rotation adjustment box body after fixed completion to adjust the angle of antenna, improve antenna data transmission's precision.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of another view of the present utility model;

fig. 3 is a partial cross-sectional view of the connection of the first connection plate and the second connection plate in the present utility model.

The names of the components marked in the figures are as follows:

1. a support plate; 2. a case body; 3. a transmission line; 4. a passive temperature sensor; 5. a first connection plate; 6. a second connecting plate; 7. a rotating shaft; 8. a hoop; 9. a screw cap; 10. positioning holes; 11. a bump; 12. a groove; 13. an anti-slip soft pad.

Detailed Description

In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present utility model with reference to the accompanying drawings and preferred embodiments.

As shown in fig. 1-3, a passive temperature measuring device for low voltage comprises a supporting plate 1 and a box body 2, wherein a circuit board and an antenna electrically connected with the circuit board are arranged in the box body 2, the circuit board is electrically connected with three transmission lines 3, one end of the transmission line 3 far away from the circuit board is connected with a passive temperature sensor 4, and the temperature of a plurality of contact points of low voltage equipment can be measured simultaneously; the bottom of the box body 2 is provided with two first connecting plates 5 which are oppositely arranged, the top of the supporting plate 1 is provided with two second connecting plates 6 which are oppositely arranged, the two second connecting plates 6 are positioned between the two first connecting plates 5, the second connecting plates 6 are rotationally connected with the first connecting plates 5 through rotating shafts 7, the side surfaces of the first connecting plates 5 are provided with positioning holes 10, the positioning holes 10 are provided with a plurality of arc-shaped protrusions 11 which are arranged in an arc-shaped manner, the side surfaces of the second connecting plates 6 close to the first connecting plates 5 are provided with arc-shaped protrusions 11, the protrusions 11 are correspondingly arranged with the positioning holes 10, when the supporting plate 1 is pushed to rotate, the protrusions 11 slide along the arc surfaces of the protrusions 11 when the protrusions 11 are transferred from one positioning hole 10 to the other positioning hole 10, the resistance between the inner walls of the positioning holes 10 and the protrusions 11 is reduced, the protrusions 11 can be smoothly transferred into the other positioning holes 10, the angle of the supporting plate 1 is changed, and therefore the angle adjustment of the antenna in the box body 2 is realized, and the stability of the supporting plate 1 is improved; the bottom of backup pad 1 is equipped with two sets of connecting holes, has inserted staple bolt 8 in the connecting hole, and the both ends of staple bolt 8 are the screw rod, and screw rod threaded connection has nut 9, through the electric connection cylinder that passes low-voltage equipment with staple bolt 8, then screw up nut 9 makes staple bolt 8 and backup pad 1 compress tightly and fix on the electric connection cylinder of low-voltage equipment, and the bottom of backup pad 1 is equipped with staple bolt 8 complex recess 12, is equipped with anti-skidding cushion 13 in the recess 12, avoids skidding.

Working principle:

before use, as shown in fig. 1, the anchor ear 8 passes through the electrical connection cylinder of the low-voltage device, then the screw cap 9 is screwed up to enable the anchor ear 8 and the support plate 1 to be tightly pressed and fixed on the electrical connection cylinder of the low-voltage device, then the passive temperature sensor 4 is respectively fixed at the contact point of the low-voltage device, after the fixing is completed, the box body 2 is pushed to rotate, so that the angle of the antenna is adjusted, and the transmission of temperature data is more accurate.

The present utility model is not limited to the above embodiments, but is capable of other modifications, equivalents and alternatives falling within the scope of the present utility model as long as the modifications, equivalents and alternatives falling within the spirit and scope of the utility model are available to those skilled in the art without departing from the scope of the utility model.

Claims (6)

1. The utility model provides a passive temperature measuring device that low pressure was used, a serial communication port, including backup pad (1) and box body (2), the inside of box body (2) is equipped with the circuit board and respectively one with the antenna that the circuit board electricity is connected, the circuit board electricity is connected with a plurality of transmission lines (3), the one end that circuit board was kept away from to transmission line (3) is connected with passive temperature sensor (4), the bottom of box body (2) is equipped with two first connecting plates (5) of setting relatively, the top of backup pad (1) is equipped with two second connecting plates (6) of setting relatively, second connecting plates (6) are connected through pivot (7) and first connecting plates (5) rotation, the bottom of backup pad (1) is equipped with a plurality of groups connecting hole, the both ends of staple bolt (8) are the screw rod, screw threaded connection has nut (9).

2. The passive temperature measuring device for low voltage according to claim 1, wherein two second connecting plates (6) are located between two first connecting plates (5), the side surfaces of the first connecting plates (5) are provided with positioning holes (10), the positioning holes (10) are provided with a plurality of arc-shaped protrusions (11) which are arranged on the side surfaces, close to the first connecting plates (5), of the second connecting plates (6), and the protrusions (11) are arranged corresponding to the positioning holes (10).

3. The passive temperature measuring device for low pressure according to claim 1, characterized in that the bottom of the support plate (1) is provided with a groove (12) cooperating with the anchor ear (8).

4. A passive temperature measuring device for low pressure according to claim 3, characterized in that an anti-slip cushion (13) is provided in the recess (12).

5. Passive temperature measuring device for low voltage according to claim 1, characterized in that three transmission lines (3) are provided.

6. The passive temperature measuring device for low voltage according to claim 1, wherein the connecting holes are provided with two groups.