WO2021120710A1 - Metering module for electric appliance and electric appliance - Google Patents

Abstract

Disclosed are a metering module for an electric appliance and an electric appliance. The metering module and the electric appliance are connected by means of wires. The metering module comprises a PCBA assembly and a metering assembly. The PCBA assembly forms a mounting slot. The metering assembly is clamped into the mounting slot and is connected to the PCBA assembly. In the metering module provided by the present invention, the mounting slot is formed on the PCBA assembly, and the metering assembly is clamped into the mounting slot and connected to the PCBA assembly, so that the internal space of the electric appliance occupied by the metering assembly and the PCBA assembly is small, and thus the space occupied by the electric appliance may be reduced, making the internal space of the electric appliance more compact and space-saving. At the same time, the PCBA assembly and the metering assembly are connected by means of employing a clamping connection, which may not only ensure the stability of the connection between the PCBA assembly and the metering assembly, but is also beneficial to the dissipation of heat emitted by the metering assembly, thereby ensuring that the heat of the electric appliance during use may be dissipated very well, and improving the heat dissipation performance of the electric appliance.

Description

Metering module for electrical appliances and electrical appliances Technical field

The present invention relates to the field of electrical appliances, in particular to a metering module and electrical appliances used for electrical appliances.

Background technique

In the existing electrical appliances, it is necessary to set up a metering module to sample its current usage and calculate the current usage. However, the input, output and sampling of the current cannot be in the same device, which leads to the fact that the existing electrical appliances generally require a large internal Space, so that the manganese-bronze shunt (or relay) has enough heat dissipation space in the bottom box to prevent the entire meter body from overheating and cause the manganese-bronze self-heating problem; or the temperature of the metering chip in the meter is too high due to too much heat It is a problem that affects the accuracy of measurement. In this way, it is impossible to sample the use of its current by setting a measurement module in a small-sized electrical appliance, and it is not conducive to popularization and use in a small place.

Summary of the invention

The main purpose of the present invention is to provide a metering module and an electrical appliance for electrical appliances, aiming to provide a more compact, more space-saving and good heat dissipation performance metering module and electrical appliance.

In order to achieve the above object, the present invention provides a metering module for electrical appliances, the metering module is connected with the electrical appliances by wires, the metering module includes a PCBA assembly and a metering assembly, the PCBA assembly forms a mounting slot, and the metering assembly It is clamped in the mounting slot and connected with the PCBA assembly.

In an embodiment, the PCBA assembly includes a PCB board and a plurality of components mounted on the surface of the PCB board, and the mounting groove is formed recessed inward from the side of the PCB board.

In one embodiment, the metering assembly includes a manganese-bronze diverter, the manganese-bronze diverter includes a plate body, and the length of the plate body is greater than the length of the mounting groove, so that the plate body is attached to the The PCB board is on the side facing away from the component and covers the mounting groove.

In an embodiment, a first sampling terminal and a second sampling terminal are formed on the board body, and both the first sampling terminal and the second sampling terminal are from the side of the board body away from the notch of the mounting groove. The edge extends in a direction away from the notch of the installation groove.

In an embodiment, the metering assembly further includes two lugs, both of which are provided on the board body and located on opposite ends of the board body along the length direction of the board.

In an embodiment, the wiring piece includes a first wiring board, a mounting board, and a second wiring board that are sequentially connected, and the first wiring board, the mounting board, and the second wiring board form a U-shaped structure, The mounting board is arranged on the board body.

In an embodiment, the side walls of the first wiring board and the second wiring board are formed with a limiting rib extending along the length of the board body, and the limiting rib is attached to the PCB The board is on the side away from the board body.

In an embodiment, both the first wiring board and the second wiring board are formed with wiring holes, a wiring hole formed on the first wiring board and a wiring hole formed on the second wiring board Corresponding settings.

In an embodiment, the PCBA assembly further includes a plurality of thimble pins, and the plurality of thimble pins are all arranged on the side of the PCB board facing away from the components.

In addition, the present invention also provides an electrical appliance including the above-mentioned metering module for the electrical appliance.

In the technical scheme of the present invention, the metering module is connected to the electrical appliance through a wire, and it includes a PCBA component and a metering component, the input and output of the current are the PCBA component, and the sampling of the current is the metering component, and by forming a mounting slot on the PCBA component, And the metering component is clamped in the installation slot and connected with the PCBA component, so that the internal space of the electrical appliance occupied by the metering component and the PCBA component is smaller, so that the space occupied by the electrical appliance can be reduced, and the internal space of the electrical appliance is more It is more compact and saves space. At the same time, the PCBA component and the metering component are connected by a snap connection method, which can not only ensure the stability of the connection between the PCBA component and the metering component, but also facilitate the dissipation of the heat emitted by the metering component and ensure that the electrical appliance is in good condition. The heat during use can be dissipated very well, which improves the heat dissipation performance of the electrical appliance.

Description of the drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on the structure shown in these drawings.

Figure 1 is a schematic structural diagram of a metering module according to an embodiment of the present invention;

Fig. 2 is an enlarged schematic diagram of A in Fig. 1;

3 is a schematic diagram of the back structure of a metering module according to an embodiment of the present invention;

4 is a schematic diagram of the structure of a metering component according to an embodiment of the present invention;

5 is a schematic diagram of the structure of the manganin shunt according to the embodiment of the present invention;

FIG. 6 is a schematic diagram of the structure of the lug according to the embodiment of the present invention.

Attached icon number description:

Label	name	Label		name
10	PCBA components	11	Components
12	PCB board	13	Installation slot
14	thimble	20	Metering components
twenty one	Manganin shunt	211	Board body
212	The first sampling terminal	213	Second sampling terminal
twenty two	Lug	221	First wiring board
222	Mounting plate	223	Second wiring board
224	Limit ribs	225	Wiring hole
twenty three	Card slot	To	To

The realization of the objectives, functional characteristics and advantages of the present invention will be further described in conjunction with the embodiments and with reference to the drawings.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between components in a specific posture (as shown in the accompanying drawings). If the relative position relationship, movement situation, etc. change, the directional indication will change accordingly.

In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

Moreover, the technical solutions between the various embodiments of the present invention can be combined with each other, but they must be based on what can be achieved by a person of ordinary skill in the art. When the combination of technical solutions is contradictory or cannot be achieved, it should be considered that this combination of technical solutions It does not exist, nor does it fall within the scope of protection claimed by the present invention.

The invention provides a metering module for electrical appliances.

It is understandable that the electrical appliance can be an air conditioner, a television, etc., or an electric energy meter. In some embodiments, the electric energy meter may be a single-phase electronic appliance, a three-phase electronic appliance, or a three-phase four-wire electronic appliance.

As shown in FIG. 1, the metering module for electrical appliances provided by the embodiment of the present invention is connected to the electrical appliances by wires. The metering module includes a PCBA assembly 10 and a metering assembly 20. The PCBA assembly 10 forms a mounting slot 13, and the metering assembly 20 is clamped to be installed. In the slot 13 and connected with the PCBA assembly 10.

In this embodiment, the metering module is connected to the electrical appliance through wires, and it includes the PCBA assembly 10 and the metering assembly 20. The input and output of the current is the PCBA assembly 10, and the sampling of the current is the metering assembly 20, which passes through the PCBA assembly 10. The mounting groove 13 is formed, and the metering assembly 20 is clamped in the mounting groove 13 and connected with the PCBA assembly 10, so that the internal space of the electric appliance occupied by the metering assembly 20 and the PCBA assembly 10 is small, thereby reducing the amount of the electric appliance. Occupies space, making the internal space of the electrical appliance more compact and saving space. At the same time, the PCBA assembly 10 and the metering assembly 20 are connected by a card connection, which can not only ensure the stability of the connection between the PCBA assembly 10 and the metering assembly 20, but also It also facilitates the dissipation of the heat emitted by the metering component 20, ensures that the heat of the electrical appliance can be dissipated very well during use, and improves the heat dissipation performance of the electrical appliance.

1 and 3, the PCBA assembly 10 includes a PCB board 12 and a plurality of components 11 mounted on the surface of the PCB board 12. The mounting groove 13 is recessed from the side of the PCB board 12 toward the inside. The mounting slot 13 is directly formed on the 12, and the metering assembly 20 is clamped to the mounting slot 13, so that when the metering assembly 20 is connected to the PCBA assembly 10, the area of the metering module will not be increased, and the PCB board 12 can be reduced accordingly. area. Of course, the mounting slot 13 can also be directly formed far away from the PCB board 12, and the metering component 20 can be directly clamped in the mounting slot 13.

4, the metering assembly 20 includes a manganese-bronze shunt 21, and the manganese-bronze shunt 21 includes a board body 211. The length of the board body 211 is greater than the length of the mounting groove 13, so that the board body 211 is attached to the PCB board 12 away from the element. The side surface of the device 11 covers the mounting groove 13. In this embodiment, since the length of the board body 211 is greater than the length of the mounting slot 13, when the board body 211 is attached to the PCB board 12, the board body 211 will cover the mounting slot 13 and connect the board body 211 with the PCB board. 12 are welded and connected, so that the board body 211 can form a corresponding supporting force.

Please refer to Figures 1 and 2. At the same time, because the metering assembly 20 also includes two lugs 22, the two lugs 22 are both arranged on the board body 211 and located on opposite ends along the length of the board body 211, and A limiting rib 224 extending along the length of the board body 211 is formed on the lug 22. The limiting rib 224 is attached to the side of the PCB board 12 away from the board body 211, so that after the metering assembly 20 is installed, the limiting rib 224 and the board body 211 beyond the part of the mounting slot 13 to form a clamping groove 23. During installation, you only need to align the clamping grooves 23 on both sides with the PCB board 12 and insert it. After inserting it in place, it can be completely welded. It is fixed so as to form corresponding upper and lower supports to ensure that the metering component 20 will not cause damage or failure of the metering component 20 during subsequent wiring insertion and removal.

At the same time, the matching structure of the mounting groove 13 and the clamping groove 23 facilitates the heat dissipation of the manganese-bronze shunt 21, so that the manganese-bronze shunt 21 has a higher accuracy in sampling.

Further, as shown in FIG. 6, the lug 22 includes a first wiring board 221, a mounting board 222, and a second wiring board 223 that are connected in sequence. The first wiring board 221, the mounting board 222, and the second wiring board 223 form a U-shape. Structure, the mounting board 222 is arranged on the board body 211. By forming the lugs 22 into a U-shaped structure, 4 current input or output wire groups can be inserted in the smallest space to complete the current input and output, which not only guarantees The normal use of the lug 22 can effectively reduce the space occupied, so that the input and output of current can be realized in a small space. Wherein, the limiting rib 224 is formed on the first wiring board 221 and the second wiring board 223 and extends along the length direction of the board body 211.

Then it can be understood that both the first wiring board 221 and the second wiring board 223 are formed with wiring holes 225, the wiring holes 225 formed on the first wiring board 221 and the wiring holes 225 formed on the second wiring board 223 Corresponding settings can facilitate the user to plug and unplug the current input line group or output line group through the wiring hole 225.

In the above embodiment, please refer to FIGS. 3 and 5, the board body 211 is formed with a first sampling terminal 212 and a second sampling terminal 213, and both the first sampling terminal 212 and the second sampling terminal 213 are installed away from the board body 211. The side of the slot of the slot 13 extends in a direction away from the slot of the mounting slot 13, and the first sampling terminal 212 and the second sampling terminal 213 are located on the side away from the component 11. The PCBA assembly 10 further includes a plurality of thimble pins 14. The multiple thimble pins 14 are all arranged on the side of the PCB board 12 facing away from the component 11. In this embodiment, the number of thimble 14 is four, and the first sampling terminal 212, the second sampling terminal 213, and the four thimble 14 are located on the same side of the PCB board 12, so that the thimble 14 can be easily connected to the first sampling terminal. 212 and the second sampling terminal 213 perform wiring layout.

Further, the present invention also provides an electrical appliance, and the electrical appliance includes the above-mentioned metering module for the electrical appliance. Since the electrical appliance adopts all the technical solutions of all the above-mentioned embodiments, it has at least all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

The above descriptions are only the preferred embodiments of the present invention, and do not limit the scope of the present invention. Under the concept of the present invention, equivalent structural transformations made using the contents of the description and drawings of the present invention, or directly/indirectly used in Other related technical fields are included in the scope of patent protection of the present invention.

Claims (10)

1. A metering module for electrical appliances, characterized in that the metering module and the electrical appliances are connected by wires, the metering module includes a PCBA assembly and a metering assembly, the PCBA assembly forms a mounting slot, and the metering assembly is clamped to the In the mounting slot and connected with the PCBA assembly.
2. The metering module for electrical appliances according to claim 1, wherein the PCBA assembly includes a PCB board and a plurality of components mounted on the surface of the PCB board, and the mounting groove is from the side of the PCB board. The edge is recessed inward.
3. The metering module for electrical appliances according to claim 2, wherein the metering component comprises a manganin shunt, the manganin shunt comprises a plate body, and the length of the plate body is greater than that of the installation groove. Length, so that the board body is attached to the side of the PCB board facing away from the components and covers the mounting groove.
4. The metering module for electrical appliances according to claim 3, wherein a first sampling terminal and a second sampling terminal are formed on the board body, and the first sampling terminal and the second sampling terminal are both derived from the The side edge of the board body away from the notch of the mounting groove extends in a direction away from the notch of the mounting groove.
5. The metering module for electrical appliances according to claim 3, wherein the metering assembly further comprises two lugs, and the two lugs are both arranged on the board body and located along the board body. On opposite ends of the length direction.
6. The metering module for electrical appliances according to claim 5, wherein the wiring piece comprises a first wiring board, a mounting board, and a second wiring board that are connected in sequence, the first wiring board, the mounting board A U-shaped structure is formed with the second wiring board, and the mounting board is arranged on the board body.
7. The metering module for electrical appliances according to claim 6, wherein the side walls of the first wiring board and the second wiring board are both formed with limiting ribs extending along the length of the board body , The limiting rib is attached to the side of the PCB board away from the board body.
8. The metering module for electrical appliances according to claim 6, wherein the first wiring board and the second wiring board are both formed with wiring holes, and the wiring holes formed on the first wiring board and The wiring holes formed on the second wiring board are correspondingly arranged.
9. The metering module for electrical appliances according to any one of claims 2-8, wherein the PCBA assembly further comprises a plurality of thimble pins, and the plurality of thimble pins are all arranged on the PCB board facing away from the components. On the side.
10. An electrical appliance, characterized in that it comprises the metering module for electrical appliances according to any one of claims 1-9.

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