Temperature detection device and electric meter box

Abstract

The utility model relates to the technical field of temperature detection, and provides a temperature detection device and an electric meter box. The temperature detection device is used for detecting the temperature of a wiring terminal on the electric energy meter, the temperature detection device is arranged outside the electric energy meter and detachably connected with the electric energy meter, and the temperature detection device comprises a temperature acquisition module which is arranged corresponding to the wiring terminal and senses the temperature change of the wiring terminal so as to acquire the temperature information of the wiring terminal; and the temperature detection module is connected with the temperature acquisition module and obtains a corresponding temperature value according to the temperature information. The temperature detection device is convenient to install, operate and maintain, can solve the problems that when a temperature sensor is arranged in an existing electric energy meter to collect the temperature of a wiring terminal, the electric energy meter needs to be disassembled or the whole electric energy meter needs to be replaced when the temperature sensor goes wrong, operation and maintenance are inconvenient, and operation and maintenance cost is high, and can also achieve real-time detection of the temperature of the wiring terminal. Therefore, safety accidents caused by over-high temperature of the electric energy meter are effectively avoided.

Description

Technical Field

[0001] The present application relates to the technical field of temperature detection, and in particular to a temperature detection device and an electric meter box. Background Art

[0002] During the operation of the energy meter on site, if the live and neutral terminals are not firmly connected or the terminal materials are not used in a standard way, the terminals of the energy meter will heat up when there is a large current and it is running for a long time. In serious cases, the energy meter will be burned, causing safety accidents such as fire and personal injury. Therefore, it is necessary to add a temperature detection function to the energy meter to automatically control the tripping of the relay.

[0003] The current solution is to set a temperature sensor inside the electric energy meter to collect the temperature of the terminal. When a problem occurs with the temperature sensor, the electric energy meter needs to be disassembled or replaced as a whole, which is inconvenient and costly to operate and maintain. Utility Model Content

[0004] In view of the above problems, the embodiments of the present application provide a temperature detection device and an electric meter box to solve the above technical problems.

[0005] In a first aspect, an embodiment of the present application provides a temperature detection device, which is used to detect the temperature of a terminal on an electric energy meter. The temperature detection device is arranged outside the electric energy meter and is detachably connected to the electric energy meter. The temperature detection device includes:

[0006] A temperature acquisition module for acquiring temperature information of the wiring terminal, wherein the temperature acquisition module is arranged corresponding to the wiring terminal;

[0007] A temperature detection module is used to obtain a corresponding temperature value according to the temperature information, and the temperature detection module is connected to the temperature acquisition module.

[0008] This embodiment is easy to install and maintain, and can solve the problem that a temperature sensor is currently set inside the electric energy meter to collect the temperature of the terminal block. When a problem occurs with the temperature sensor, the electric energy meter needs to be disassembled or replaced as a whole, which results in inconvenient maintenance and high maintenance costs. The embodiment can also realize real-time detection of the temperature of the terminal block, thereby effectively avoiding safety accidents caused by excessive temperature of the electric energy meter.

[0009] Optionally, the temperature acquisition module includes at least one of an NTC thermistor, a PTC thermistor and a platinum resistor, and is capable of sensing the temperature of the terminal and outputting a corresponding voltage signal.

[0010] Optionally, the connection terminal includes a live wire terminal and / or a neutral wire terminal, and the temperature detection of the live wire terminal and the neutral wire terminal can be realized simultaneously.

[0011] Optionally, the live wire terminal includes a live wire outlet and a live wire inlet, and the temperature acquisition module is arranged corresponding to the live wire outlet and the live wire inlet, so as to realize temperature detection of the live wire outlet and the live wire inlet.

[0012] Optionally, the neutral line terminal includes a neutral line outlet terminal and a neutral line input terminal, and the temperature acquisition module is arranged corresponding to the neutral line outlet terminal and the neutral line input terminal, so as to realize temperature detection of the neutral line outlet terminal and the neutral line input terminal.

[0013] Optionally, the temperature detection module further includes an analog-to-digital converter, which can convert the temperature information of the terminal block into a specific temperature value with high detection accuracy.

[0014] Optionally, the electric energy meter further includes:

[0015] A main control module, wherein the main control module is connected to the temperature detection module, and the main control unit is used to obtain the temperature value output by the temperature detection module, and compare the temperature value with a preset threshold value, and output a control signal according to the comparison result.

[0016] This embodiment can generate a control signal to control the electric energy meter to cut off power when the temperature value exceeds a preset threshold, thereby effectively avoiding safety accidents caused by excessive temperature of the electric energy meter.

[0017] Optionally, the temperature detection device further includes:

[0018] A first communication module, wherein the first communication module is connected to the temperature detection module;

[0019] The electric energy meter also includes:

[0020] A second communication module, wherein the second communication module is connected to the first communication module.

[0021] The electric energy meter of this embodiment can communicate with the temperature detection device, so that the electric energy meter can respond to the temperature detection result in real time.

[0022] Optionally, the first communication module adopts a wireless or wired communication mode, and the second communication module is configured corresponding to the first communication module, which can improve user experience.

[0023] In a second aspect, an embodiment of the present application further provides an electric meter box, comprising a plurality of electric energy meters and a plurality of the temperature detection devices, wherein the temperature detection devices are arranged in a one-to-one correspondence with the electric energy meters.

[0024] The temperature detection device provided in the embodiment of the present application is used to detect the temperature of the terminal blocks on the electric energy meter. The temperature detection device is arranged on the outside of the electric energy meter and is detachably connected to the electric energy meter. This can solve the problem of setting a temperature sensor inside the electric energy meter to collect the temperature of the terminal blocks. When a problem occurs with the temperature sensor, the electric energy meter needs to be disassembled or replaced as a whole, which results in inconvenient operation and maintenance and high operation and maintenance costs. The device is easy to install and operate, and can also detect the temperature of the terminal blocks in real time, thereby effectively avoiding safety accidents caused by excessive temperature of the electric energy meter.

[0025] These and other aspects of the present application will become more clearly understood in the description of the following embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 Schematic diagram of the structure of a temperature detection device according to an embodiment of the present application.

[0028] Figure 2 Schematic diagram of the structure of a temperature detection device according to another embodiment of the present application.

[0029] Figure 3 Schematic diagram of the structure of a temperature detection device according to another embodiment of the present application.

[0030] Figure 4 Schematic diagram of the structure of a temperature detection device according to another embodiment of the present application.

[0031] Figure 5 Schematic diagram of the structure of a temperature detection device according to another embodiment of the present application.

[0032] Figure 6 Schematic diagram of the structure of a temperature detection device according to another embodiment of the present application.

[0033] Figure 7 Schematic diagram of the structure of a temperature detection device according to another embodiment of the present application.

[0034] Figure 8 Schematic diagram of the structure of a temperature detection device according to another embodiment of the present application.

[0035] Fig. 9 Schematic diagram of the structure of a temperature detection device according to another embodiment of the present application.

[0036] Fig.10Schematic diagram of the structure of a temperature detection device according to an embodiment of the present application.

[0037] Fig.11 It is a schematic diagram of the structure of an electric meter box according to an embodiment of the present application. DETAILED DESCRIPTION

[0038] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and cannot be understood as limiting the present application.

[0039] In order to enable those skilled in the art to better understand the solutions of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present application.

[0040] In the embodiments of the present application, it should be noted that, in this article, relational terms such as first and second, etc. are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0041] Moreover, the terms "comprises," "comprising," or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0042] In the description of the embodiments of the present application, words such as "example" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "example" or "for example" in the embodiments of the present application is not to be interpreted as being more preferred or having more advantages than another embodiment or design. The use of words such as "example" or "for example" is intended to present relative concepts in a clear manner.

[0043] In addition, the "plurality" in the embodiments of the present application refers to two or more than two. In view of this, in the embodiments of the present application, "plurality" can also be understood as "at least two". "At least one" can be understood as one or more, for example, one, two or more. For example, including at least one means including one, two or more, and there is no limit on which ones are included. For example, including at least one of A, B and C, then A, B, C, A and B, A and C, B and C, or A, B and C can be included.

[0044] It should be noted that, in the embodiments of the present application, "and / or" describes the association relationship of the associated objects, indicating that three relationships may exist. For example, A and / or B may represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / ", unless otherwise specified, generally indicates that the associated objects before and after are in an "or" relationship.

[0045] Current electric energy meters can detect the temperature of the wiring terminals through temperature sensors, thereby effectively preventing the electric energy meter from burning due to overheating. However, existing electric energy meters are equipped with temperature sensors inside to collect the temperature of the wiring terminals. When the temperature sensor has a problem, the electric energy meter needs to be disassembled or replaced as a whole, which is inconvenient and costly to operate and maintain.

[0046] like Figure 1 As shown, Figure 1The temperature detection device provided by the embodiment of the utility model is schematically shown. The temperature detection device 100 is used to detect the temperature of the terminal 201 on the electric energy meter 200, and is arranged outside the electric energy meter 200 and is detachably connected to the electric energy meter 200. The temperature detection device 100 includes: a temperature detection module 20 and a temperature acquisition module 30. Among them, the temperature acquisition module 30 is arranged outside the electric energy meter 200 and corresponds to the terminal 201, and senses the temperature change of the terminal 201 to collect the temperature information of the terminal 201. The temperature detection module 20 is connected to the temperature acquisition module 30, and obtains the corresponding temperature value according to the temperature information. In this embodiment, the temperature acquisition module 30 can sense the temperature of the connection terminal 201, and output the corresponding temperature information according to the temperature change, and the temperature information can be a voltage signal; the temperature detection module 20 obtains the temperature information output by the temperature acquisition module 30 and converts it into a specific temperature value, and the temperature of the connection terminal 201 is detected in real time by the temperature detection device 100, so as to facilitate taking measures when the temperature is too high, and can effectively avoid the electric energy meter 200 from having too high a temperature, causing the electric energy meter 200 to burn, causing fire, personal injury and other safety accidents. The temperature detection device 100 of this embodiment is arranged on the outside of the electric energy meter 200 and is detachably connected to the electric energy meter 200, which can solve the problem that the temperature sensor is set inside the current electric energy meter 200 to collect the temperature of the connection terminal 201. When the temperature sensor has a problem, the electric energy meter 200 needs to be disassembled or replaced as a whole, which is inconvenient and has high operation and maintenance costs, and has the effect of being easy to install and operate.

[0047] In some embodiments, the temperature acquisition module 30 is arranged near the terminal 201, and can change the resistance value according to the induced temperature change. The temperature acquisition module 30 can be a nonlinear resistor whose resistance value changes with the change of temperature. In a feasible embodiment, the temperature acquisition module 30 includes at least one of an NTC (Negative Temperature Coefficient, negative temperature coefficient) thermistor, a PTC (Positive Temperature Coefficient, positive temperature coefficient) thermistor and a platinum resistor. Among them, the NTC thermistor is a thermistor with a negative temperature coefficient whose resistance decreases exponentially with the increase of temperature; the PTC thermistor increases its resistance with the increase of temperature; the resistance value of the platinum resistor changes with the change of temperature and has a certain functional relationship.

[0048] In some embodiments, the connection terminal 201 includes a live terminal 2011 and / or a neutral terminal 2012. For example, see Figure 2 , the connection terminal 201 includes a live terminal 2011, and the temperature of the live terminal 2011 can be detected. For example, see Figure 3, the connection terminal 201 includes a neutral terminal 2012, and the temperature of the neutral terminal 2012 can be detected. For example, see Figure 4 The connection terminal 201 includes a live terminal 2011 and a neutral terminal 2012 , and the temperature acquisition module 30 is set corresponding to the live terminal 2011 and the neutral terminal 2012 , so as to realize temperature detection of the live terminal 2011 and the neutral terminal 2012 at the same time.

[0049] In some embodiments, see Figure 5 , the live wire terminal 2011 includes a live wire outlet terminal 1a and a live wire input terminal 1b, and the temperature acquisition module 30 is set corresponding to the live wire outlet terminal 1a and the live wire input terminal 1b. Exemplarily, a first temperature acquisition module 31 is set corresponding to the live wire outlet terminal 1a, and a second temperature acquisition module 32 is set corresponding to the live wire input terminal 1b. The first temperature acquisition module 31 outputs corresponding temperature information according to the change of the temperature of the live wire outlet terminal 1a, and the temperature detection module 20 obtains the temperature information output by the first temperature acquisition module 31 and converts it into the temperature value of the live wire outlet terminal 1a; the second temperature acquisition module 32 outputs corresponding temperature information according to the change of the temperature of the live wire input terminal 1b, and the temperature detection module 20 obtains the temperature information output by the second temperature acquisition module 32 and converts it into the temperature value of the live wire input terminal 1b. This embodiment can detect the temperature of the live wire input terminal 1b and the live wire outlet terminal 1a at the same time, thereby effectively avoiding the safety accident caused by the over-high temperature of the electric energy meter 200.

[0050] In some embodiments, see Figure 6 , the neutral terminal 2012 includes a neutral outlet 2a and a neutral input 2b. When the connection terminal 201 includes the neutral terminal 2012, the temperature acquisition module 30 is set corresponding to the neutral outlet 2a and the neutral input 2b. Exemplarily, a third temperature acquisition module 33 is set corresponding to the neutral outlet 2a, and a fourth temperature acquisition module 34 is set corresponding to the neutral input 2b. The third temperature acquisition module 33 outputs corresponding temperature information according to the change of the temperature of the neutral outlet 2a. The temperature detection module 20 obtains the temperature information output by the third temperature acquisition module 33 and converts it into the temperature value of the neutral outlet 2a; the fourth temperature acquisition module 34 outputs corresponding temperature information according to the change of the temperature of the neutral input 2b. The temperature detection module 20 obtains the temperature information output by the fourth temperature acquisition module 34 and converts it into the temperature value of the neutral input 2b. This embodiment can simultaneously detect the temperature of the neutral input 2b and the neutral outlet 2a, thereby effectively avoiding safety accidents caused by excessive temperature of the electric energy meter 200.

[0051] In one possible implementation, see Figure 7A first temperature acquisition module 31 is provided corresponding to the live wire outlet terminal 1a, a second temperature acquisition module 32 is provided corresponding to the live wire input terminal 1b, a third temperature acquisition module 33 is provided corresponding to the neutral wire outlet terminal 2a, and a fourth temperature acquisition module 34 is provided corresponding to the neutral wire input terminal 2b. This embodiment can simultaneously detect the temperatures of the live wire input terminal 1b, the live wire outlet terminal 1a, the neutral wire input terminal 2b and the neutral wire outlet terminal 2a, thereby effectively avoiding safety accidents caused by excessive temperature of the electric energy meter 200.

[0052] In some embodiments, see Figure 8 The temperature detection module 20 includes: an analog-to-digital converter. The analog-to-digital converter of this embodiment is used to convert the temperature information collected by the temperature acquisition module 30 into a temperature value. Exemplarily, the temperature detection module 20 is an analog-to-digital converter. In this embodiment, the temperature acquisition module 30 senses the temperature of the terminal 201, outputs a corresponding voltage signal according to the temperature change, and the analog-to-digital converter obtains the voltage signal output by the temperature acquisition module 30 and converts it into a specific temperature value, with high detection accuracy.

[0053] In some embodiments, see Fig. 9 The electric energy meter 200 also includes: a main control module 202, which is connected to the temperature detection module 20 for communication. The main control module 202 is used to obtain the temperature value output by the temperature detection module 20, and compare the temperature value with the preset threshold value, and output a control signal according to the comparison result. The preset threshold value of this embodiment is the critical temperature for a safety accident. For example, the preset threshold value can be the critical temperature for the electric energy meter 200 to burn out and / or the critical temperature for causing a fire. The preset threshold value can be a fixed value or a temperature range, which can be set by the user according to the actual situation. Specifically, the temperature acquisition module 30 of this embodiment senses the temperature of the terminal 201, and outputs the corresponding temperature information according to the temperature change. The temperature detection module 20 obtains the temperature information output by the temperature acquisition module 30 and converts it into a specific temperature value. The main control module 202 obtains the temperature value and compares the temperature value with the preset threshold value. According to the comparison result, the control signal is output to control the electric energy meter 200 to cut off the power, thereby effectively avoiding the electric energy meter 200 from having an over-high temperature, which may cause the electric energy meter 200 to burn out, cause a fire, or cause personal injury.

[0054] In some embodiments, see Fig.10, the temperature detection device 100 also includes: a first communication module 21, the first communication module 21 is connected to the temperature detection module 20; the electric energy meter 200 also includes: a second communication module 203, the second communication module 203 is respectively connected to the first communication module 21 and the main control module 202. The temperature detection device 100 and the electric energy meter 200 realize data transmission through the first communication module 21 and the second communication module 203, and the data includes a temperature value. In some embodiments, the first communication module 21 adopts a wireless or wired communication mode, and the second communication module 203 is set corresponding to the first communication module 21. Exemplarily, the second communication module 203 and the first communication module 21 both adopt a wired communication mode, and the data transmission is stable and reliable. Exemplarily, the second communication module 203 and the first communication module 21 both adopt a wireless communication mode. For example, the second communication module 203 and the first communication module 21 can be Bluetooth modules, and the main control module 202 and the temperature detection module 20 can be Bluetooth chips integrated with Bluetooth modules, which can realize wireless data transmission within a short distance through Bluetooth, with low power consumption, low cost, low complexity and easy to use.

[0055] The present application also provides an electric meter box 300, see Fig.11 The electric meter box 300 includes a plurality of electric energy meters 200 and a plurality of the above-mentioned temperature detection devices 100, and the temperature detection devices 100 are arranged one by one with the electric energy meters 200. The temperature detection device 100 of the electric meter box 300 is arranged outside the electric energy meter 200 and is detachably connected to the electric energy meter 200, which can solve the problem that the current electric energy meter 200 is provided with a temperature sensor inside to collect the temperature of the terminal 201. When a problem occurs with the temperature sensor, the electric energy meter needs to be disassembled or replaced as a whole, which is inconvenient and has a high cost of operation and maintenance. The electric meter box 300 is easy to install and operate, and can also detect the temperature of the terminal 201 in real time, thereby effectively avoiding the electric energy meter 200 from having an overly high temperature and causing a safety accident.

[0056] The above are only preferred embodiments of the present application, and are not intended to limit the present application in any form. Although the present application has been disclosed as above with preferred embodiments, it is not intended to limit the present application. Any technical personnel in the field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present application. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application are still within the scope of the technical solution of the present application.

Claims

1. A temperature detection device, characterized in that: The temperature detection device is used to detect the temperature of the connection terminal on the electric energy meter. The temperature detection device is arranged outside the electric energy meter and is detachably connected to the electric energy meter. The temperature detection device includes: A temperature acquisition module for acquiring temperature information of the wiring terminal, wherein the temperature acquisition module is arranged corresponding to the wiring terminal; A temperature detection module is used to obtain a corresponding temperature value according to the temperature information, and the temperature detection module is connected to the temperature acquisition module.

2. The temperature detection device according to claim 1, characterized in that: The temperature acquisition module includes any one of an NTC thermistor, a PTC thermistor and a platinum resistor.

3. The temperature detection device according to claim 1, characterized in that: The connection terminals include live wire terminals and / or neutral wire terminals.

4. The temperature detection device according to claim 3, characterized in that: The live wire terminal includes a live wire outlet and a live wire inlet, and the temperature acquisition module is arranged corresponding to the live wire outlet and the live wire inlet.

5. The temperature detection device according to claim 3, characterized in that: The neutral line terminal includes a neutral line outlet terminal and a neutral line input terminal, and the temperature acquisition module is arranged corresponding to the neutral line outlet terminal and the neutral line input terminal.

6. The temperature detection device according to claim 1, characterized in that: The temperature detection module includes an analog-to-digital converter.

7. The temperature detection device according to claim 1, characterized in that: The electric energy meter also includes: A main control module is communicatively connected with the temperature detection module, and is used to obtain a temperature value output by the temperature detection module, compare the temperature value with a preset threshold, and output a control signal according to the comparison result.

8. The temperature detection device according to claim 7, characterized in that: The temperature detection device also includes: A first communication module, wherein the first communication module is connected to the temperature detection module; The electric energy meter also includes: A second communication module, wherein the second communication module is connected to the first communication module.

9. The temperature detection device according to claim 8, characterized in that: The first communication module adopts a wireless or wired communication mode, and the second communication module is configured corresponding to the first communication module.

10. An electric meter box, characterized in that: It comprises a plurality of electric energy meters and a plurality of temperature detection devices as described in any one of claims 1 to 9, wherein the temperature detection devices are arranged in a one-to-one correspondence with the electric energy meters.

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