Novel low-voltage drawer with temperature measurement function

Abstract

The utility model relates to the technical field of low-voltage drawers, in particular to a novel low-voltage drawer with a temperature measurement function. Comprising a drawer body, and the rear portion of the drawer body is provided with three mounting holes which are distributed in a linear array in the inclined direction. Each mounting hole is detachably provided with a single-phase movable plug-in unit. The single-phase movable plug-in comprises a shell and a movable plug-in body connected in the shell, the movable plug-in body comprises a contact mechanism and a connecting piece, the contact mechanism is exposed out of the rear part of the shell, the connecting piece is exposed out of the front part of the shell, the connecting piece is connected with a copper bar through a binding post, and the copper bar is detachably connected with a wireless temperature sensing device; the wireless temperature sensing device comprises a first clamping arm and a second clamping arm which are pivoted with each other; and the like; by improving the structure of the rear part of the drawer body and the structure of each phase moving plug-in, the single-phase moving plug-in and the temperature sensor thereof can be assembled and disassembled independently, and remote monitoring by a user is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of low-pressure drawer technology, and in particular to a novel low-pressure drawer with temperature measurement function. Background Technology

[0002] In existing low-voltage drawer-type switchgear structures, the moving plugs of the main connectors are generally arranged horizontally in a straight line and connected to the rear of the drawer body. Referring to a low-voltage drawer-type switchgear connector disclosed in Chinese Patent No. CN209313281U, in its structure, the three-phase moving plugs are installed in an integral housing, and then fixed to the rear of the drawer body by bolts through the housing. In this structure, each phase moving plug also has a built-in temperature sensor, which is located inside the housing and then extends out of the housing through a wire to be electrically connected to the control circuit board built into the drawer body. Thus, the sensor sends a signal to the control circuit board, and the original function of the circuit board is used to realize the audible and visual indication or the circuit breaker disconnection.

[0003] In the above patented solutions, since the three-phase moving plugs are integrated into a single housing, if one phase moving plug is damaged or malfunctions and needs repair or replacement, the entire housing must be disassembled from the drawer body, which is difficult to operate and inconvenient for individual disassembly and assembly of single-phase moving plugs. Furthermore, the temperature sensor is built into the housing, making inspection and replacement difficult. The alarm mechanism provided by the control circuit board built into the drawer body is not conducive to remote monitoring of the moving plug temperature in the low-voltage drawers of the entire electrical room by the user. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a new type of low-pressure drawer with temperature measurement function. By improving the structure of the rear part of the drawer body and the structure of each phase moving plug, it is convenient to assemble and disassemble the single-phase moving plug and its temperature sensor separately, and to facilitate remote monitoring by the user.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A novel low-pressure drawer with temperature measurement function includes a drawer body, and the rear of the drawer body is provided with three mounting holes arranged in a straight line along an inclined direction; each mounting hole is detachably fitted with a single-phase moving plug.

[0007] The single-phase moving plug includes a housing and a moving plug body connected inside the housing. The moving plug body includes a contact mechanism and a connecting piece. The contact mechanism is exposed at the rear of the housing, and the connecting piece is exposed at the front of the housing. The connecting piece is connected to a copper busbar via a terminal block, and the copper busbar is detachably connected to a wireless temperature sensing device.

[0008] The wireless temperature sensing device includes a first clamping arm and a second clamping arm that are pivotally connected to each other.

[0009] In the assembled state, the first clamping arm and the second clamping arm clamp the copper busbar on both sides, respectively;

[0010] The first clamping arm is embedded with a wireless temperature sensor in the middle. The wireless temperature sensor integrates a temperature sensing element, an amplifier circuit module, an analog-to-digital converter, a microcontroller, a wireless communication module and a power supply module that are electrically connected to each other. In the assembled state, the temperature sensing element is in contact with one side of the copper busbar.

[0011] Furthermore, in the aforementioned low-pressure drawer structure with novel temperature measurement function, the temperature sensing element is a thermistor or a thermocouple.

[0012] Furthermore, in the aforementioned low-pressure drawer structure with novel temperature measurement function, the microcontroller is an STM32L or an ESP32.

[0013] Furthermore, in the aforementioned low-pressure drawer structure with novel temperature measurement function, the wireless communication module uses Bluetooth, Wi-Fi, ZigBee, LoRa, NB-IoT, or Sigfox as its protocol.

[0014] Furthermore, in the aforementioned low-pressure drawer structure with novel temperature measurement function, the power module is a lithium button battery.

[0015] Furthermore, in the aforementioned low-pressure drawer structure with novel temperature measurement function, the bottom of the second clamping arm is provided with a protruding limiting part facing the first clamping arm. In the assembled state, the protruding limiting part abuts against the bottom of the copper busbar.

[0016] The beneficial effects of this utility model are as follows: Each phase moving plug adopts an independent shell and is connected to the rear of the drawer body independently and in a stepped distribution. Compared with the three-phase integrated connection method, it is more convenient to connect the copper busbar of the junction box and also facilitates the individual maintenance of single phase. The temperature sensor no longer needs to be connected to the inside of the moving plug through a wire. As long as a torsion spring is set between the first clamping arm and the second clamping arm to form a clamping structure, the real-time temperature of the copper busbar can be efficiently obtained through the wireless temperature sensor set on the first clamping arm. It is also very convenient to install and disassemble, avoiding mutual interference of wires. Through the wireless communication module, the entire power room can be connected to only one terminal, and real-time monitoring of the entire power room can be achieved by simultaneously communicating with all the wireless temperature sensors in the power room. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a novel low-pressure drawer with temperature measurement function, which is a specific embodiment of this utility model.

[0018] Figure 2 for Figure 1 Enlarged view of part A;

[0019] Figure 3 A schematic diagram of the structure of a novel wireless temperature sensing device for a low-pressure drawer with temperature measurement function, which is a specific embodiment of this utility model.

[0020] Label Explanation:

[0021] 1. Drawer body;

[0022] 2. Single-phase moving plug; 21. Housing; 22. Contact mechanism; 23. Connecting piece; 231. Terminal block;

[0023] 3. Copper busbar;

[0024] 4. Wireless temperature sensing device; 41. First clamping arm; 411. Wireless temperature sensor; 4111. Temperature sensing element; 42. Second clamping arm; 421. Protruding limiting part. Detailed Implementation

[0025] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0026] Please refer to Figures 1 to 3 The present invention relates to a novel low-pressure drawer with temperature measurement function, comprising a drawer body 1, wherein the rear of the drawer body 1 is provided with three mounting holes arranged in a straight line along an inclined direction; each mounting hole is detachably fitted with a single-phase moving plug 2.

[0027] The single-phase moving plug 2 includes a housing 21 and a moving plug body connected inside the housing 21. The moving plug body includes a contact mechanism 22 and a connecting piece 23. The contact mechanism 22 is exposed at the rear of the housing 21, and the connecting piece 23 is exposed at the front of the housing 21. The connecting piece 23 is connected to a copper busbar 3 through a terminal block 231. The copper busbar 3 is detachably connected to a wireless temperature sensing device 4.

[0028] The wireless temperature sensing device 4 includes a first clamping arm 41 and a second clamping arm 42 that are pivotally connected to each other.

[0029] In the assembled state, the first clamping arm 41 and the second clamping arm 42 are respectively clamped on both sides of the copper busbar 3;

[0030] The first clamping arm 41 has a wireless temperature sensor 411 embedded in its middle. The wireless temperature sensor 411 integrates a temperature sensing element 4111, an amplifier circuit module, an analog-to-digital converter, a microcontroller, a wireless communication module, and a power supply module that are electrically connected to each other. When assembled, the temperature sensing element 4111 is in contact with one side of the copper busbar 3.

[0031] In the above embodiments, in the assembled state, the wireless temperature sensor 411 is attached to the copper busbar 3 through the temperature sensing element 4111 to sense the temperature of the copper busbar 3 in real time. The temperature is converted into a digital signal that can be processed by the microcontroller through the circuit amplification module and the analog-to-digital converter. After the microcontroller further processes the data, it is wirelessly connected to a remote terminal such as a PC, PAD or mobile phone through the wireless communication module. The remote terminal can obtain the temperature data of the corresponding copper busbar 3 in real time, which facilitates timely location of faulty connectors and timely maintenance.

[0032] In the above embodiments, each phase moving plug adopts an independent housing 21, which is independently and connected to the rear of the drawer body 1 in a stepped distribution. Compared with the three-phase integrated connection method, it is more convenient to connect the junction box copper busbar 3, and also convenient for single-phase individual maintenance. The temperature sensor no longer needs to be connected to the moving plug through a wire. As long as a torsion spring is set between the first clamping arm 41 and the second clamping arm 42 to form a clamping structure, the real-time temperature of the copper busbar 3 can be efficiently obtained through the wireless temperature sensor 411 set on the first clamping arm 41. It is also very convenient to install and disassemble, and avoids mutual interference of wires. Through the wireless communication module, the entire power room can be connected to only one terminal, and real-time monitoring of the entire power room can be achieved by simultaneously communicating with all the wireless temperature sensors 411 in the power room.

[0033] In a preferred embodiment, the temperature sensing element 4111 is a thermistor or a thermocouple.

[0034] In a preferred embodiment, the microcontroller is an STM32L or an ESP32.

[0035] In a preferred embodiment, the protocol of the wireless communication module is Bluetooth, Wi-Fi, ZigBee, LoRa, NB-IoT, or Sigfox.

[0036] In a preferred embodiment, the power module is a lithium button battery.

[0037] In a preferred embodiment, the bottom of the second clamping arm 42 is provided with a protruding limiting part 421 facing the first clamping arm 41. In the assembled state, the protruding limiting part 421 abuts against the bottom of the copper busbar 3.

[0038] In the above implementation methods, refer to Figure 3 When the assembly is clamped, the protruding limiting part 421 can abut against the bottom of the copper busbar 3, which can better limit the movement and prevent the wireless temperature sensing device 4 from slipping upward off the copper busbar 3 due to user misoperation during maintenance, thus failing to accurately sense the temperature of the copper busbar 3.

[0039] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A novel low-pressure drawer with temperature measurement function, characterized in that, Includes a drawer body, the rear of which has three mounting holes arranged in a straight line along an inclined direction; each mounting hole is detachably fitted with a single-phase moving plug. The single-phase moving plug includes a housing and a moving plug body connected inside the housing. The moving plug body includes a contact mechanism and a connecting piece. The contact mechanism is exposed at the rear of the housing, and the connecting piece is exposed at the front of the housing. The connecting piece is connected to a copper busbar via a terminal block, and the copper busbar is detachably connected to a wireless temperature sensing device. The wireless temperature sensing device includes a first clamping arm and a second clamping arm that are pivotally connected to each other. In the assembled state, the first clamping arm and the second clamping arm clamp the copper busbar on both sides, respectively; The first clamping arm is embedded with a wireless temperature sensor in the middle. The wireless temperature sensor integrates a temperature sensing element, an amplifier circuit module, an analog-to-digital converter, a microcontroller, a wireless communication module and a power supply module that are electrically connected to each other. In the assembled state, the temperature sensing element is in contact with one side of the copper busbar.

2. The novel low-pressure drawer with temperature measurement function according to claim 1, characterized in that, The temperature sensing element is a thermistor or a thermocouple.

3. The novel low-pressure drawer with temperature measurement function according to claim 1, characterized in that, The microcontroller is an STM32L or an ESP32.

4. The novel low-pressure drawer with temperature measurement function according to claim 1, characterized in that, The wireless communication module uses Bluetooth, Wi-Fi, ZigBee, LoRa, NB-IoT, or Sigfox protocols.

5. The novel low-pressure drawer with temperature measurement function according to claim 1, characterized in that, The power module is a lithium button battery.

6. The novel low-pressure drawer with temperature measurement function according to claim 1, characterized in that, The bottom of the second clamping arm is provided with a protruding limiting part facing the first clamping arm. In the assembled state, the protruding limiting part abuts against the bottom of the copper busbar.

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