Temperature measurement structure of ammeter wiring terminal

Abstract

The utility model discloses an ammeter wiring terminal temperature measurement structure, relates to the technical field of intelligent ammeter, aims to solve the problems of low production efficiency and low reliability of the wiring terminal temperature measurement structure, and comprises a connecting seat provided with a plurality of columnar through holes, the columnar through holes are distributed in an array, and conductive members are connected in the columnar through holes. The conductive component is connected with a heat conducting component, the connecting seat is connected with a circuit board, a plurality of digital temperature sensors are arranged on the circuit board, and the digital temperature sensors are connected with the conductive component through the heat conducting component. According to the ammeter wiring terminal temperature measurement structure of the utility model, the wiring terminal does not need to be individually holed or slotted for temperature measurement, the processing procedures are few, the production efficiency is high, the installation height of a PCB is not limited, the application range is wider, the shock and vibration resistance is good, and the reliability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent electric energy meters, in particular to a temperature measuring structure for an electric meter wiring terminal. Background Art

[0002] In the existing intelligent electric energy meter wiring terminal, a temperature measuring resistor is used in cooperation with a temperature conducting connection hole or groove of a conducting component. A heat conducting silica gel sleeve is sleeved on the top of the temperature measuring resistor, and the temperature measuring resistor is welded on a PCB circuit board. When the temperature measuring resistor is adopted, holes or grooves need to be preset on the wiring terminal, which greatly limits the installation height dimension and the external dimension of the wiring terminal; when the plug-in welding type is used for connecting with the PCB circuit board, manual participation is required; in actual production applications, when the number of terminals to be measured is large, the temperature measuring resistor and the wiring terminal need to be manually corrected and aligned, which affects the efficiency and reliability; when the temperature measuring resistor and the wiring terminal are matched, the whole matching gap needs to be filled after the heat conducting silica gel sleeve is extruded and deformed. In the actual batch process, inconsistent filling problems lead to poor consistency.

[0003] For example, there is a Chinese patent with the publication number of CN220084207U, which relates to a temperature measuring device for an electric meter wiring terminal, including a wiring terminal connection seat, a wiring terminal connection conducting component connected to the wiring terminal on the wiring terminal connection seat, and a PCB circuit board. A temperature conducting connection hole or groove is formed on the wiring terminal connection conducting component, a temperature measuring resistor is welded on the PCB circuit board, the temperature measuring resistor has a temperature measuring resistor ceramic shell, a heat conducting silica gel sleeve is sleeved on the end of the temperature measuring resistor ceramic shell, the end of the temperature measuring resistor ceramic shell is matched with the temperature conducting connection hole or groove, and the end of the temperature measuring resistor ceramic shell sleeved with the heat conducting silica gel sleeve is extruded into the temperature conducting connection hole or groove to be connected with the wiring terminal connection conducting component, which can accurately and quickly measure the temperature. However, the Chinese patent with the publication number of CN220084207U adopts the temperature measuring resistor type, holes or grooves need to be preset on the wiring terminal, which greatly limits the installation height dimension and the external dimension of the wiring terminal, and it is connected with the PCB circuit board by the plug-in welding type, which requires manual participation. Summary of the Utility Model

[0004] In order to solve the problems of low production efficiency and low reliability of the wiring terminal temperature measuring structure, the utility model provides a temperature measuring structure for an electric meter wiring terminal, which does not need to separately open holes or slots for temperature measurement on the wiring terminal, has fewer processing procedures, high production efficiency, does not limit the PCB installation height, has a wider application range, and has good anti-impact and vibration resistance and high reliability.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a temperature measuring structure for an electric meter wiring terminal,

[0006] It includes a connecting seat provided with a number of columnar through-holes, the columnar through-holes are arranged in an array, conductive components are connected in the columnar through-holes, the conductive components are connected with heat-conducting components, the connecting seat is connected with a circuit board, and a number of digital temperature sensors are arranged on the circuit board, and the digital temperature sensors are connected with the conductive components through the heat-conducting components.

[0007] In this technical solution, the digital temperature sensor is a surface-mounted digital temperature sensor. Using the surface-mounted digital temperature sensor to replace the temperature measuring resistor not only facilitates the acquisition device to directly read digital quantities, but also eliminates the need to separately open holes or slots for temperature measurement by the wiring terminals, which can reduce the processing procedures and improve production efficiency; the heat-conducting component is installed on the conductive component of the wiring terminal by adhesive pasting, without restricting the size of the conductive component. By adjusting the external dimension of the heat-conducting component, the withstand voltage and air discharge gap can be increased, and the PCB installation height is not restricted, so the applicable range is wider; the surface-mounted digital temperature sensor is small in size, has no contact with the copper terminal, has better anti-impact and vibration resistance, and good reliability. The installation can be automatically bonded by a machine, and the production efficiency is higher; the PCB is directly positioned and fixed through the terminal block, with higher assembly consistency and reliability, and is more conducive to maintenance.

[0008] The utility model is further configured as: the connecting seat is of a cuboid structure, a number of connecting plates parallel to the axis of the columnar through-hole and vertically arranged are provided on the connecting seat, and a fixing member is provided at the bottom of one side of the connecting plate.

[0009] In this technical solution, the connecting seat is of a cuboid structure, which is convenient to be installed in the meter housing, and the cuboid connection has higher stability. A number of connecting plates parallel to the axis of the columnar through-hole and vertically arranged are provided on the connecting seat. On the one hand, the connecting plates play a supporting role. On the other hand, a fixing member is provided at the bottom of one side of the connecting plate, which can connect and fix the circuit board.

[0010] The utility model is further configured as: the cross-section of the columnar through-hole is a first shape, the first shape is composed of a major arc bow shape and a trapezoid, the chord length of the major arc bow shape is equal to the bottom side length of the trapezoid, and the chord of the major arc bow shape coincides with the bottom side of the trapezoid.

[0011] In this technical solution, the shape of the columnar through-hole matches the conductive component, and both are columns with a cross-section composed of a major arc bow shape and a trapezoid.

[0012] The utility model is further configured as: one end of the conductive component is provided with a wiring hole, the other end extends out of the columnar through-hole of the connecting seat, and a number of connecting through-holes are provided on the side wall of the end of the conductive component provided with the wiring hole.

[0013] In this technical solution, one end of the conductive member is provided with a wiring hole, which is a cylindrical hole. A conical structure is further provided at the top of the cylinder. The wiring hole is connected to a wire. When the wire is inserted into the wiring hole, the wire temperature is conducted through the conductive member and the heat-conducting member connected to the conductive member to the digital temperature sensor for detection. A plurality of connecting through holes are provided on the side wall of the end of the conductive member where the wiring hole is located, and screws can be inserted.

[0014] In this embodiment, 3 connecting through holes are provided on the conductive member. The first connecting through hole and the second connecting through hole are arranged in the cylindrical part of the wiring hole, and the two are of equal size. The third connecting through hole is arranged in the conical part of the wiring hole, and the diameter of the third connecting through hole is smaller than that of the first connecting through hole.

[0015] The present utility model is further configured as: a plurality of limiting members are provided on the circuit board, and the fixing member of the connecting plate is clamped with the limiting members.

[0016] In this technical solution, limiting members are provided on the circuit board. A fixing member is provided at the bottom of one side of the connecting plate of the connecting seat. The fixing member and the limiting members can be clamped and fixed to fixedly connect the circuit board and the connecting seat together.

[0017] The present utility model is further configured as: the shape of the conductive member matches the shape of the columnar through hole, and the conductive member is connected in the columnar through hole of the connecting seat and is closely attached to the connecting seat.

[0018] In this technical solution, the conductive member is inserted into the columnar through hole, and the two have matching shapes and are closely attached.

[0019] The present utility model is further configured as: the fixing member is a buckle, and the buckle includes a connecting portion and a clamping portion. The clamping portion is arranged on the side of the fixing member away from the center of the temperature measuring structure of the electricity meter wiring terminal.

[0020] In this technical solution, a fixing member is provided at the bottom of the connecting plate of the connecting seat. The fixing member is a buckle, which includes a connecting portion and a clamping portion. The clamping portion is closer to the side plate of the connecting seat than the connecting portion.

[0021] The present utility model is further configured as: the limiting member is a square through hole, and the fixing member is connected in the square through hole and is fixed by the clamping portion of the fixing member.

[0022] In this technical solution, limiting members are provided on the circuit board. The limiting members are square through holes, and their apertures are the same as the size of the fixing member and can be clamped with the fixing member.

[0023] In this embodiment, there are three connecting plates in the connecting base, which are arranged in an array between the side walls on the left and right sides of the connecting base. From left to right, they are the first connecting plate, the second connecting plate, and the third connecting plate. Fixing members are provided at the bottoms of the first connecting plate and the third connecting plate. Correspondingly, limiting members are provided on the circuit board at positions corresponding to the first connecting plate and the third connecting plate. The fixing members can be snapped into the limiting members to achieve the fixed connection between the connecting base and the circuit board.

[0024] The present utility model is further configured as: the digital temperature sensor is a patch-type digital temperature sensor.

[0025] In this technical solution, a patch-type digital temperature sensor is adopted, and the digital temperature sensor can be patch-mounted on the circuit board without soldering. Moreover, the digital temperature sensor is small in size, has no contact with the copper terminal, and has better anti-shock and vibration resistance.

[0026] The present utility model also proposes the following technical solution: an electric meter, and the electric meter includes a meter case having an installation cavity, and the above-mentioned temperature measurement structure for the electric meter wiring terminal is provided in the installation cavity of the meter case.

[0027] In this technical solution, the above-mentioned temperature measurement structure for the electric meter wiring terminal is provided in the installation cavity of the meter case of the electric meter, which can quickly and accurately measure the temperature, and the wiring terminal can be connected to the temperature sensor without grooving or opening holes, and the production efficiency is high.

[0028] The beneficial effects of the present utility model are:

[0029] 1. By adopting a digital temperature sensor, there is no need to preset holes or slots in the wiring terminal, reducing the processing procedures and improving the production efficiency;

[0030] 2. There are no limiting requirements for the size of the wiring terminal and the installation height of the PCB, and the application range is wider;

[0031] 3. The installation of the digital sensor and the heat conduction member are both automatically bonded by machines, with good consistency and reliability. There is no need for manual insertion, and the production efficiency is higher;

[0032] 4. The PCB is installed and limited and fixed by the terminal block, with consistent positions and more reliable temperature measurement consistency, and it is more conducive to maintenance. Description of the Drawings

[0033] Figure 1 is a schematic diagram of the temperature measurement structure for the electric meter wiring terminal of the present utility model.

[0034] Figure 2 is an exploded view of the temperature measurement structure for the electric meter wiring terminal of the present utility model.

[0035] Figure 3 is a sectional view of the temperature measurement structure for the electric meter wiring terminal of the present utility model.

[0036] Reference numerals: connecting seat 1; cylindrical through-hole 1-1; fixing member 1-2; conductive member 2; heat-conducting member 3; circuit board 4; limiting member 4-1; digital temperature sensor 5. Detailed implementation manners

[0037] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific implementation manners described herein are only the best embodiments of the present utility model, which are only used to explain the present utility model and do not limit the protection scope of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0038] As the grid access node at the user end, while the intelligent electricity meter realizes the fee control problem, it inevitably generates wiring joints, and the connection quality is related to the user's overloading use situation, installation quality, aging situation, etc. If poor contact occurs, it may cause the heating of the wiring terminal and even cause a fire. Setting a wiring terminal temperature measurement structure in the electricity meter can effectively avoid the above problems.

[0039] In the existing intelligent electricity meter wiring terminal, a temperature measurement resistor is used in cooperation with a heat conduction connection hole or groove of the conductive member. A heat conduction silicone sleeve is sleeved on the top of the temperature measurement resistor, and the temperature measurement resistor is welded on the PCB circuit board.

[0040] First of all, when a temperature measurement resistor is used in the wiring terminal, holes or grooves need to be preset in the wiring terminal, which greatly limits the installation height dimension and the external dimension of the wiring terminal.

[0041] Secondly, when connecting to the PCB circuit board, the plug-in welding method is used, which requires manual participation.

[0042] Thirdly, in actual production applications, when the number of terminals to be temperature measured is large, the temperature measurement resistor needs to be manually corrected and aligned with the wiring terminal, which affects the efficiency and reliability;

[0043] Moreover, the temperature measurement resistor needs to be filled with the entire mating gap after being extruded and deformed by the heat conduction silicone sleeve when mating with the wiring terminal. In the actual batch process, there is a problem of inconsistent filling, resulting in poor consistency. There are deficiencies in the manufacturability and reliability design of the entire design.

[0044] Embodiment 1

[0045] This embodiment provides a temperature measurement structure for an electricity meter wiring terminal. Refer to Figure 1 , including a connecting seat 1, a conductive member 2, a heat-conducting member 3, a circuit board 4 and a digital temperature sensor 5.

[0046] As Figure 3As shown, several columnar through-holes 1-1 are provided in the connecting seat, and the conductive member is connected in the columnar through-hole. It should be noted that the conductive member has good electrical and thermal conductivity. In this embodiment, according to the material price, conductivity, current-carrying capacity, and use environment, the material of the conductive member is preferably copper or copper alloy.

[0047] In some other embodiments, other conductive materials can also be selected, such as aluminum, aluminum alloy, zinc alloy, iron, gold, silver, or non-metallic conductive materials.

[0048] In this embodiment, there are eight columnar through-holes in the connecting seat of the temperature measurement structure of the electric meter wiring terminal. Every two columnar through-holes form a group, and there is a connecting plate between every two groups. Fixing members 1-2 are provided at the bottoms of the two connecting plates closest to the edge. The fixing member in this embodiment is a buckle. Refer to Figure 2 , which includes a connecting portion and a clamping portion, and the clamping portion is arranged in the direction close to the edge.

[0049] The heat-conducting member is connected to the conductive member. In this embodiment, according to the insulation requirements, installation reliability and consistency of the use scenario, the heat-conducting member is preferably heat-conducting silica gel. As Figure 2 shown, the heat-conducting silica gel is mounted on the bottom of the conductive member in a back-pasted manner.

[0050] In some other embodiments, the heat-conducting member can also use heat-conducting silicone grease or heat-conducting plastic.

[0051] There are two limiting members provided on the circuit board. Refer to Figure 2 , the limiting member is a square through-hole, and the two limiting members respectively correspond to the two fixing members. The fixing member can be inserted into the limiting member, and the size of the clamping portion is larger than the size of the limiting member, so it cannot pass through the limiting member, realizing the clamping of the limiting member and the fixing member. The circuit board is fixedly connected to the connecting seat through the clamping of the limiting member and the fixing member.

[0052] The installation process of a temperature measurement structure of an electric meter wiring terminal in this embodiment is elaborated in detail below.

[0053] First, the conductive member of the wiring terminal is sequentially inserted into the columnar through-holes of the connecting seat.

[0054] Secondly, the heat-conducting member is mounted on the conductive member of the wiring terminal by means of back glue pasting.

[0055] Then, the digital temperature sensor is mounted on the PCB circuit board in a patch type.

[0056] Finally, the PCB circuit board is fixed to the connecting seat through the buckle on the connecting seat.

[0057] After installation, the conductive component, the heat-conducting component, the digital temperature sensor and the circuit board form a heat-conducting path. After the wire is inserted into the wiring hole of the conductive component, the wire is connected to the conductive component to conduct heat, and then the temperature measurement can be realized.

[0058] In this embodiment, a temperature measurement structure for an electric meter terminal includes a connection base provided with a plurality of columnar through holes, the columnar through holes are arranged in an array, a conductive component is connected in each columnar through hole, the conductive component is connected with a heat-conducting component, the connection base is connected with a circuit board, and a plurality of digital temperature sensors are arranged on the circuit board, and the digital temperature sensors are connected with the conductive component through the heat-conducting component.

[0059] It should be noted that in this embodiment, the digital temperature sensor is a surface-mounted digital temperature sensor. Using the surface-mounted digital temperature sensor to replace the temperature measurement resistor eliminates the need for the wiring terminal to separately open holes or slots for temperature measurement, which can reduce the processing procedures and improve the production efficiency.

[0060] The heat-conducting component is installed on the conductive component of the wiring terminal by means of back glue pasting. The size of the conductive component is not restricted. By adjusting the external dimension of the heat-conducting component, the withstand voltage and the air discharge gap can be increased. The PCB installation height is not restricted, and the application range is wider.

[0061] The surface-mounted digital temperature sensor is small in size, has no contact with the copper terminal, has better shock and vibration resistance, and good reliability. The installation can be realized by automatic machine fitting, and the production efficiency is higher.

[0062] The PCB is directly positioned and fixed through the terminal base, with higher assembly consistency and reliability, and is more conducive to maintenance.

[0063] In this embodiment, the connection base is of a cuboid structure, and a plurality of connecting plates parallel to the axis of the columnar through holes and vertically arranged are provided on the connection base, and a fixing member is provided at the bottom of one side of the connecting plate.

[0064] It should be noted that the connection base is of a cuboid structure, which is convenient for installation in the meter housing, and the cuboid connection has higher stability. A plurality of connecting plates parallel to the axis of the columnar through holes and vertically arranged are provided on the connection base. On the one hand, the connecting plates play a supporting role. On the other hand, a fixing member is provided at the bottom of one side of the connecting plate, which can connect and fix the circuit board.

[0065] In this embodiment, the cross-section of the columnar through hole is a first shape, which is composed of a major arc bow shape and a trapezoid shape. The chord length of the major arc bow shape is equal to the bottom side length of the trapezoid, and the chord of the major arc bow shape coincides with the bottom side of the trapezoid.

[0066] It should be noted that the shape of the columnar through hole matches that of the conductive component, and both are columns with a cross-section composed of a major arc bow shape and a trapezoid shape.

[0067] In this embodiment, one end of the conductive member is provided with a wiring hole, and the other end extends out of the columnar through-hole of the connecting seat. A plurality of connecting through-holes are provided on the side wall of the end of the conductive member where the wiring hole is located.

[0068] It should be noted that one end of the conductive member is provided with a wiring hole, which is a cylindrical hole. A conical structure is also provided at the top of the cylinder. The wiring hole is connected to a wire. When the wire is inserted into the wiring hole, the temperature of the wire is conducted to the digital temperature sensor through the conductive member and the heat-conducting member connected to the conductive member for detection. A plurality of connecting through-holes are provided on the side wall of the end of the conductive member where the wiring hole is located, and screws can be inserted.

[0069] In this embodiment, there are 3 connecting through-holes on the conductive member. The first connecting through-hole and the second connecting through-hole are arranged on the cylindrical part of the wiring hole, and they are of equal size. The third connecting through-hole is arranged on the conical part of the wiring hole, and the diameter of the third connecting through-hole is smaller than that of the first connecting through-hole.

[0070] In this embodiment, a plurality of limiting members are provided on the circuit board, and the fixing member of the connecting plate is clamped with the limiting members.

[0071] It should be noted that limiting members are provided on the circuit board. A fixing member is provided at the bottom on one side of the connecting plate of the connecting seat. The fixing member and the limiting members can be clamped and fixed to fixedly connect the circuit board and the connecting seat together.

[0072] In this embodiment, the shape of the conductive member matches the shape of the columnar through-hole, and the conductive member is connected in the columnar through-hole of the connecting seat and is in close fit with the connecting seat.

[0073] It should be noted that the conductive member is inserted into the columnar through-hole, and their shapes match and are in close fit.

[0074] In this embodiment, the fixing member is a buckle, and the buckle includes a connecting portion and a clamping portion. The clamping portion is arranged on the side of the fixing member away from the center of the temperature measuring structure of the electricity meter wiring terminal.

[0075] It should be noted that a fixing member is provided at the bottom of the connecting plate of the connecting seat. The fixing member is a buckle, which includes a connecting portion and a clamping portion. The clamping portion is closer to the side plate of the connecting seat than the connecting portion.

[0076] In this embodiment, the limiting member is a square through-hole, and the fixing member is connected in the square through-hole and fixed by the clamping portion of the fixing member.

[0077] It should be noted that limiting members are provided on the circuit board. The limiting members are square through-holes, and their apertures are the same as the size of the fixing member and can be clamped with the fixing member.

[0078] In this embodiment, there are three connecting plates in the connecting seat, which are arrayed between the side walls on the left and right sides of the connecting seat. From left to right, they are the first connecting plate, the second connecting plate, and the third connecting plate. Fixing members are provided at the bottoms of the first connecting plate and the third connecting plate. Correspondingly, limiting members are provided at the positions of the circuit board corresponding to the first connecting plate and the third connecting plate. The fixing members can be snapped into the limiting members to achieve the fixed connection between the connecting seat and the circuit board.

[0079] In this embodiment, the digital temperature sensor is a surface-mounted digital temperature sensor.

[0080] It should be noted that by using a surface-mounted digital temperature sensor, the digital temperature sensor can be surface-mounted on the circuit board without welding. Moreover, the digital temperature sensor is small in size, has no contact with the copper terminals, and has better anti-impact and vibration resistance.

[0081] In this embodiment, a surface-mounted digital temperature sensor is used to replace the temperature measuring resistor in the temperature measuring structure of the electric meter wiring terminal, eliminating the need for the wiring terminal to be separately drilled or grooved for temperature measurement, which can reduce the processing procedures and improve the production efficiency.

[0082] The heat-conducting member is mounted on the conductive member of the wiring terminal by means of adhesive pasting, without restricting the size of the conductive member. By adjusting the external dimensions of the heat-conducting member, the withstand voltage and the air discharge gap can be increased, and the PCB mounting height is not restricted, resulting in a wider application range.

[0083] The surface-mounted digital temperature sensor is small in size, has no contact with the copper terminals, has better anti-impact and vibration resistance, and good reliability. The installation can be automatically bonded by a machine, resulting in higher production efficiency.

[0084] The PCB is directly positioned and fixed through the terminal block, with higher assembly consistency and reliability, and is more conducive to maintenance.

[0085] Embodiment 2

[0086] This embodiment provides a temperature measuring structure for an electric meter wiring terminal, which includes a connecting seat, a conductive member, a heat-conducting member, a circuit board, and a digital temperature sensor.

[0087] A number of columnar through-holes are provided in the connecting seat, and the conductive member is connected in the columnar through-holes.

[0088] In this embodiment, there are eight columnar through-holes in the connecting seat of the temperature measuring structure of the electric meter wiring terminal. Every two columnar through-holes form a group, and there is a connecting plate between every two groups. Fixing members 1-2 are provided at the bottoms of the two connecting plates closest to the edge. The fixing member in this embodiment is a screw.

[0089] There are two limiting members provided on the circuit board. The limiting members are threaded holes, and the two limiting members respectively correspond to two fixing members. The fixing members can be screwed into the limiting members, realizing the fixed connection between the limiting members and the fixing members. The circuit board is fixedly connected to the connection seat through the limiting members and the fixing members.

[0090] The installation process of a temperature measurement structure for an electric meter terminal in this embodiment will be elaborated in detail below.

[0091] First, the conductive member of the terminal is sequentially inserted into the columnar through-hole of the connection seat.

[0092] Secondly, the heat-conducting member is installed on the conductive member of the terminal by means of back glue pasting.

[0093] Then, the digital temperature sensor is mounted on the PCB circuit board in a patch type.

[0094] Finally, the PCB circuit board is fixed to the connection seat by the screws on the connection seat.

[0095] After the installation is completed, the conductive member, the heat-conducting member, the digital temperature sensor and the circuit board form a heat conduction path. After the wire is inserted into the wiring hole of the conductive member, the wire is connected to the conductive member to conduct heat, and then the temperature measurement can be realized.

[0096] In this embodiment of the temperature measurement structure for an electric meter terminal, the digital temperature sensor is replaced by a patch type digital temperature sensor instead of a temperature measurement resistor. There is no need to separately open holes or slots for temperature measurement on the terminal, which can reduce the processing procedures and improve the production efficiency.

[0097] The heat-conducting member is installed on the conductive member of the terminal by means of back glue pasting, which does not limit the size of the conductive member. By adjusting the outer shape size of the heat-conducting member, the withstand voltage and the air discharge gap can be increased, and the PCB installation height is not limited, so the applicable range is wider.

[0098] The patch type digital temperature sensor is small in size, has no contact with the copper terminal, has better anti-impact and vibration resistance, and good reliability. The installation can be automatically bonded by a machine, and the production efficiency is higher.

[0099] The PCB is directly positioned and fixed through the terminal seat, and the assembly consistency and reliability are higher, and it is more conducive to maintenance.

[0100] Embodiment 3

[0101] An electric meter includes a meter case having an installation cavity. Inside the installation cavity of the meter case, the case includes an upper case and a lower case. The upper case and the lower case are fixedly connected, and an installation cavity is formed between the upper case and the lower case. The above-mentioned temperature measurement structure for an electric meter terminal is arranged in the installation cavity.

[0102] The installation cavity of the electricity meter case is provided with the above-mentioned temperature measurement structure for the electricity meter wiring terminal, which can quickly and accurately measure the temperature, and the wiring terminal can be connected to the temperature sensor without grooving or drilling, with high production efficiency.

Claims

1. A temperature measurement structure for an electricity meter wiring terminal, characterized in that, It includes a connecting seat provided with a number of columnar through holes, the columnar through holes are arranged in an array, conductive members are connected in the columnar through holes, the conductive members are connected with heat-conducting members, the connecting seat is connected with a circuit board, and a number of digital temperature sensors are provided on the circuit board. The digital temperature sensors are connected to the conductive members through the heat-conducting members.

2. The temperature measurement structure of an electricity meter wiring terminal according to claim 1, characterized in that, The connecting seat is of a cuboid structure. A number of connecting plates parallel to the axis of the columnar through holes and vertically placed are provided on the connecting seat, and fixing members are provided at the bottom of one side of the connecting plates.

3. The temperature measurement structure of an electricity meter wiring terminal according to claim 1, characterized in that, The cross-section of the columnar through hole is of a first shape, which is composed of a superior arc bow shape and a trapezoid shape. The chord length of the superior arc bow shape is equal to the length of the bottom side of the trapezoid, and the chord of the superior arc bow shape coincides with the bottom side of the trapezoid.

4. The temperature measuring structure of an electric meter wiring terminal according to claim 1, characterized in that, One end of the conductive member is provided with a wiring hole, and the other end extends out of the columnar through hole of the connecting seat. A number of connecting through holes are provided on the side wall of the end of the conductive member provided with the wiring hole.

5. The temperature measurement structure of an electricity meter wiring terminal according to claim 2, characterized in that, A number of limiting members are provided on the circuit board, and the fixing members of the connecting plates are clamped with the limiting members.

6. The temperature measurement structure of an electricity meter wiring terminal according to claim 1, wherein The shape of the conductive member matches the shape of the columnar through hole, and the conductive member is connected in the columnar through hole of the connecting seat and is in close fit with the connecting seat.

7. The temperature measurement structure of an electricity meter wiring terminal according to claim 2, characterized in that, The fixing member is a buckle, and the buckle includes a connecting portion and a clamping portion. The clamping portion is arranged on the side of the fixing member away from the center of the temperature measuring structure of the electricity meter wiring terminal.

8. The temperature measurement structure of an electric meter wiring terminal according to claim 5, characterized in that, The limiting member is a square through hole, and the fixing member is connected in the square through hole and is fixed by the clamping portion of the fixing member.

9. A temperature measuring structure for an electric meter wiring terminal according to any one of claims 1-8, characterized in that, The digital temperature sensor is a patch type digital temperature sensor.

10. An electric meter, characterized in that, The electricity meter includes a meter housing having an installation cavity, and the temperature measuring structure of the electricity meter wiring terminal as described in any one of claims 1-8 is provided in the installation cavity of the meter housing.

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