CN218002742U - Contact temperature measuring device for measuring temperature of cold-pressed terminal - Google Patents

Abstract

The utility model relates to a contact temperature measuring device for measuring terminal temperature of colding pressing, the terminal of colding pressing passes through bolt and nut and switch board fixed connection, contact temperature measuring device measures the terminal temperature of colding pressing, the device includes metal package's thermistor measurement chip, fixing device and test box, thermistor measurement chip strength magnets fixes in bolt one end, contact bolt detects the temperature of the terminal of colding pressing, metal package's thermistor measurement chip detection signal sends into the test box through the temperature measurement wire, the test box passes through fixing device to be fixed on the pipe wall of the terminal of colding pressing. The pressing buckle and the fixing ribbon are arranged outside the shell, so that the shell is ensured to change in an elastic range, the phenomena of flattening and pulling damage caused by internal and external pressure difference are avoided, and the service life of the device is prolonged; the shell is externally provided with a U-shaped iron core, so that the structural strength of the device is ensured; the shell is directly arranged on the cold-pressed terminal, so that the application is wide; if the temperature measuring function fails, the device can be quickly embodied from the PCB, and the maintenance is convenient.

Description

Contact temperature measuring device for measuring temperature of cold-pressed terminal

Technical Field

The utility model relates to a technique, in particular to a contact temperature measuring device for measuring cold pressing terminal temperature.

Background

At present, outdoor power distribution cabinets often cause fire disasters due to poor contact of wiring terminals, and are often ignored by people due to particularity and concealment, so that the fire disasters and accidents are easily caused. The infrared temperature measurement module is arranged in one shell, the wireless transmission circuit board (PCB) is arranged, and the related gateway equipment is connected to measure the temperature.

The related documents also disclose a contact temperature measuring device, which directly measures the temperature at the nut by using a stainless steel temperature measuring contact, the contact is easy to deviate due to external factors because of lacking a fixing device, and the measured temperature has certain deviation with the wiring terminal. The document has the defects of relatively complex structure, more sealing surfaces, easy extrusion and damage of the shell and the like.

Disclosure of Invention

The contact type temperature measuring device for measuring the temperature of the cold pressing terminal is provided for solving the problem of effective measurement of the temperature of the wiring terminal, is firm in installation and fixation, and can realize accurate fitting temperature measurement.

The technical scheme of the utility model is that: the utility model provides a contact temperature measuring device for measuring binding post temperature, cold press the terminal through bolt and nut and switch board fixed connection, contact temperature measuring device measures the terminal temperature of colding pressing, the device includes metal-packaged thermistor measurement chip, fixing device and test box, thermistor measurement chip magnet adsorbs to be fixed in bolt one end, the temperature of cold pressing the terminal is detected to the contact bolt, thermistor measurement chip detected signal sends into the test box through the temperature measurement wire, the test box passes through fixing device to be fixed on the pipe wall of cold pressing the terminal.

Preferably, the other end of the temperature measuring wire, which is far away from the thermistor measuring chip, is of a plug structure, and the plug is connected with the test box in a plugging and unplugging manner.

Preferably, the test box comprises a front cover, a compression buckle, a PCB (printed circuit board), a transmitting coil, an iron core pressing sheet and a shell; the PCB board with transmitting coil arranges the fixed position that corresponds in the casing in, protecgulum and casing outer lane notch lock compress tightly the hasp with the both sides of casing, and the PCB board is received the temperature signal of terminal of colding pressing in real time, transmitting coil wireless transmission signal.

Preferably, the fixing device is a fixing cable tie, and the fixing cable tie penetrates through a back channel of the shell of the assembled test box and a pipe wall of the cold-pressed terminal to be tightened and bound.

Preferably, the fixing device further comprises a U-shaped iron core, and the U-shaped iron core is inserted into the test box fixed on the cold-pressed terminal pipe wall and clamped.

Preferably, an iron core pressing sheet is arranged on each of two sides of a fixing support of the transmitting coil, the iron core pressing sheets are elastic spring sheets, the transmitting coil is fixed into the shell, the iron core pressing sheets are arranged on one side of a U-shaped iron core jack on the shell, the position, after the pressing buckle presses the lock catch, of the outer side of the shell is the other side of the U-shaped iron core jack on the shell, the iron core pressing sheets and the pressing buckle form an inserting sheet channel in the assembled test box, and the U-shaped iron core is pressed by the iron core pressing sheets after being inserted into the inserting sheet channel.

The beneficial effects of the utility model reside in that: the utility model discloses a contact temperature measuring device for measuring cold pressing terminal temperature, the casing is equipped with outside and compresses tightly buckle and fixed ribbon, has guaranteed that the casing changes in the elasticity scope, has avoided flattening and drawing bad phenomenon because of inside and outside pressure differential causes, has improved the life of device; the U-shaped iron core and the iron core pressing sheet are arranged outside the shell, so that the structural strength of the device is ensured, and the use safety and reliability are improved; the shell is directly arranged on the cold-pressed terminal, so that the product can be applied to various connecting wires in the power distribution cabinet, can be timely adjusted according to the type of the connecting wires, and is wide in application range; if the temperature measuring function fails, the device can be quickly embodied from the PCB, and the maintenance is convenient.

Drawings

FIG. 1 is a schematic view of the contact temperature measuring device of the present invention after installation;

FIG. 2 is an exploded view of the contact temperature measuring device of the present invention;

fig. 3 is a cross-sectional view of the contact temperature measuring device of the present invention for fixing the U-shaped iron core.

The attached drawings are as follows: 1. bolt, 2, thermistor measurement chip, 3, cold pressing terminal, 4, fixed ribbon, 5, U type iron core, 6, test box, 601, protecgulum, 602, compress tightly the buckle, 603, PCB board, 604, transmitting coil, 605, iron core preforming, 606, casing, 7, magnet piece, 8, temperature measurement wire, 9, plug.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. The embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

According to a schematic diagram of the contact type temperature measuring device for measuring the temperature of the cold pressing terminal after installation in the figure 1, the contact type temperature measuring device comprises a thermistor measuring chip 2, a fixing bandage 4, a U-shaped iron core 5 and a testing box 6, the cold pressing terminal 3 is fixedly connected with a power distribution cabinet through bolts and nuts, the thermistor measuring chip 2 is fixedly connected with one end of a bolt 1, and the temperature of the cold pressing terminal 3 is detected in a contact mode. The detection signal of the thermistor measurement chip 2 is sent to the test box 6 through a lead, and the test box 6 is fixed on the pipe wall of the cold pressing terminal 3. In the figure 1, the test box 6 is fixed on the pipe wall of the cold pressing terminal 3 through a fixing band 4 and a U-shaped iron core 5, and the test element thermistor measuring chip 2 and the test box for receiving the test signal unit are both fixed on the cold pressing terminal 3.

As shown in the structural explosion diagram of the contact temperature measuring device shown in fig. 2, a thermistor measuring chip 2 packaged by metal is adsorbed on a bolt 1 through a magnet block 7, the thermistor measuring chip 2 is connected in series with a temperature measuring wire 8, the other end of the temperature measuring wire 8, which is far away from the thermistor measuring chip 2, is of a plug 9 structure, the plug 9 is connected with a test box 6 in a plugging and unplugging manner, and the test box 6 comprises a front cover 601, a compression buckle 602, a PCB board 603, a transmitting coil 604, an iron core pressing sheet 605 and a shell 606. The PCB 603 and the transmitting coil 604 are arranged in corresponding fixed positions in the shell 606, two sides of a fixed bracket of the transmitting coil 604 are respectively provided with an iron core pressing sheet 605, the front cover 601 is buckled with a notch on the outer ring of the shell 606, and the two pressing buckles 602 are used for pressing and locking the buckled front cover 601 and two sides of the shell 606. The PCB 603 receives the temperature signal of the cold-pressed terminal 3 in real time, and the signal is transmitted wirelessly through the transmitting coil 604.

As shown in fig. 2, the fixing ties 4 penetrate through the back channel 6061 at the upper end of the housing 606 of the assembled test box 6 and the pipe wall of the cold-pressed terminal 3 and then are tightened, so that the test box 6 is fixed on the pipe wall of the cold-pressed terminal 3.

As shown in fig. 3, the U-shaped iron core is installed, fixed and cross-sectional view, the U-shaped iron core 5 is inserted and fixed into the lower end of the test box 6 on the tube wall of the cold-pressed terminal 3, and is clamped by the iron core pressing sheets 605 on both sides of the fixing bracket of the transmitting coil 604 and the pressing buckles 602 on both sides of the housing 606, and the tube wall of the cold-pressed terminal 3 is placed between the U-shaped iron core 5 and the test box 6 and is locked. The iron core pressing sheet 605 is an elastic sheet with certain elasticity, after the transmitting coil 604 is fixed to a fixed frame position 6062 in the shell 606, the iron core pressing sheet 605 is arranged on one side of the U-shaped iron core 5 jack, the position of the pressing buckle 602 outside the shell 606 after being pressed and locked is the other side of the U-shaped iron core 5 jack, the assembled test box 6 forms an inserting sheet channel, and the U-shaped iron core 5 is pressed by the iron core pressing sheet 605 after being inserted.

One end of the temperature measurement lead 8 is a temperature measurement element thermistor measurement chip 2, the other end of the temperature measurement lead is a plug 9, and after the test box 6 is fixedly arranged on the pipe wall of the cold pressing terminal 3, the thermistor measurement chip 2 is fixed and the plug 9 is inserted, so that the test and the installation are convenient. The fixing band 4 and the U-shaped iron core 5 are arranged outside the test box 6 for fixing, and the test box 6 can be effectively controlled to move in the elastic range. Different lengths can be selected for use to temperature measurement wire 8, according to the size and the distance of terminal 3 of colding pressing, can realize accurate laminating temperature measurement.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (6)

1. The utility model provides a contact temperature measuring device for measuring terminal temperature of colding pressing, the terminal of colding pressing passes through bolt and nut and switch board fixed connection, contact temperature measuring device measures the terminal temperature of colding pressing, a serial communication port, the device includes metal-packaged thermistor measurement chip, fixing device and test box, thermistor measurement chip strength magnets fixes in bolt one end, the contact bolt detects the temperature of the terminal of colding pressing, thermistor measurement chip detected signal sends into the test box through the temperature measurement wire, the test box passes through fixing device to be fixed on the pipe wall of the terminal of colding pressing.

2. The contact temperature measuring device for measuring the temperature of the cold pressing terminal as claimed in claim 1, wherein the other end of the temperature measuring wire far away from the thermistor measuring chip is in a plug structure, and the plug is connected with the test box in a plug-and-socket manner.

3. The contact temperature measuring device for measuring the temperature of a cold-pressed terminal according to claim 1 or 2, wherein the test box comprises a front cover, a compression buckle, a PCB board, a transmitting coil, an iron core pressing sheet and a shell; the PCB board with transmitting coil arranges the fixed position that corresponds in the casing in, protecgulum and casing outer lane notch lock compress tightly the hasp with the both sides of casing, and the PCB board is received the temperature signal of terminal of colding pressing in real time, transmitting coil wireless transmission signal.

4. The contact temperature measurement device for measuring the temperature of a cold-pressed terminal of claim 3, wherein the securing means is a securing tie that is tightened through the assembled housing back channel of the test case and the cold-pressed terminal tube wall.

5. The contact temperature measurement device for measuring the temperature of cold-pressed terminals of claim 4, wherein the fixture further comprises a U-shaped iron core, and the U-shaped iron core is inserted into a test box fixed on the cold-pressed terminal tube wall and clamped.

6. The contact temperature measuring device according to claim 5, wherein the two sides of the fixing bracket of the transmitting coil are respectively provided with an iron core pressing piece, the iron core pressing pieces are elastic pieces, the transmitting coil is fixed in the housing, the iron core pressing pieces are arranged on one side of the U-shaped iron core insertion hole on the housing, the position of the pressing buckle on the outer side of the housing after pressing the lock catch is the other side of the U-shaped iron core insertion hole on the housing, the iron core pressing pieces and the pressing buckle in the assembled test box form an insert channel, and the U-shaped iron core is pressed by the iron core pressing pieces after being inserted into the insert channel.

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