[Meter's Latest Patent] An Intelligent Electronic Water Meter

Content Description

The utility model relates to an intelligent electronic water meter, in particular to a smart electronic water meter with good sealing performance.

Background of the invention

The structure design of the existing electronic water meter generally adopts the airtight three-prevention design, and most of the board seals also employ rigid transparent glue or beeswax.

Chinese Patent Application No. CN105758491A for Chinese Invention Patent "Electronic Water Meter with Three Prevention Functions" (Application No.: CN201610252299 .9) discloses a structure comprising a base, a housing, a water flow metering assembly, a ball valve assembly and a master The circuit board is provided with a mounting groove for mounting a main circuit board and a mounting cavity for a control circuit board for mounting a water flow measurement assembly inside the housing, and a battery compartment for installing a battery, a mounting slot and a mounting cavity are also arranged in the housing. All are filled with a silicone gel that can cover the corresponding circuit board. The wire leads in the housing are coated with a silicone layer. After the water meter of the above structure is assembled, waterproofing is performed by coating a silicon gel layer on the leading end of the electric wire. However, directly coating the silica gel not only does not easily coat evenly, but the drawn end of the power cord after being coated has no positioning structure. When pulling the power cord for next-step assembly and connection, it is also easy to cause the partially condensed silica gel to separate from the power cord, which affects the sealing performance of the water meter.

Therefore, for the current smart electronic water meter, further improvements need to be made.

Summary of the Invention

The technical problem to be solved by the utility model is to address the current state of the art and provide an intelligent electronic water meter with simple and reasonable structure and good sealing performance.

The technical solution adopted by the utility model to solve the above technical problems is: an intelligent electronic water meter including an upper shell and a lower shell that can be interlocked with each other, and a battery compartment for installing a battery is arranged inside the upper shell. The side wall of the battery compartment is provided with a through hole for the power cable to protrude from the battery compartment, characterized in that the side wall of the battery compartment is further provided with a glue filling slot arranged around the through hole. It is used to fill glue that can seal the through hole with the power cable.

The figure is an exploded view of the structure of the embodiment of the utility model

As a further improvement of the present invention, a notch is defined on the outer side wall of the potting slot, and a detachable embedded mounting plate is provided in the notch to limit the power line that protrudes from the through hole. With such a structure, it is convenient to place the hand into the notch when wiring; after the wiring is completed, the power cable passing through the through hole is limited by the mounting board, which can prevent the power cable from loosening in the course of subsequent assembly and pulling. Or the glue that has been solidified can be loosened to enhance the sealing effect of the glue.

In the above solution, upper and lower communicating chutes are respectively formed on two opposite inner side walls of the notch. Correspondingly, two sides of the assembly board are respectively formed with sliders that can be inserted into the chute, and the assembly is completed. In the state, the mounting plate and the side wall of the glue tank jointly enclose a cavity for containing the glue. With such a structure, the glue that has been solidified after filling can be glued together at the assembly plate and the glue tank at the same time, so that water stains and the like can be prevented from entering the potion through the connection gap between the assembly plate and the potting tank, further enhancing the water meter. Sealing performance.

In each of the above preferred solutions, a total circuit board is disposed on the inner side of the upper housing, and an IC prepaid card reading and writing circuit board is connected to one side of the main circuit board. Correspondingly, the side wall of the upper housing is opened. There are sockets for inserting IC prepaid cards.

As an improvement, the inner surface of the upper housing is provided with a buckle that can limit the edge of the IC prepaid card reading and writing circuit board to the upper housing. A vertically disposed internal threaded post is disposed on the inner surface of the upper shell. Correspondingly, the IC prepaid card reading and writing circuit board is provided with a connecting hole for the screw to pass through and match with the internal threaded post. In the prior art, when IC prepaid card read-write circuit board is installed, it is directly connected to the internally threaded post, so that not only is the connection inconvenient, but also it causes the IC prepaid card read-write circuit board after the connection is not stable; and with the above structure, When the IC prepaid card read-write circuit board is installed, the pre-paid IC card read-write circuit board is pre-positioned on the upper casing by using the buckle. At this time, the connection hole of the IC pre-paid card read-write circuit board is just on the inner surface of the upper casing. The internal threaded posts are relatively flush, and they can be tightened with screws, and the connection is convenient. After the connection is completed, the plastic pre-paid card reading and writing circuit board has better stability and has a comparatively good effect. Good sealing.

Compared with the prior art, the utility model has the advantages that: the utility model has a simple and reasonable structure, and a glue slot arranged around the outlet through hole is arranged on the side wall of the battery compartment, and after the power line is connected, the utility model can be connected to the utility model. The glue is filled in the glue filling tank, and the glue will be sealed through the through hole of the power line after the glue is solidified, so that the outlet of the battery bunker has a good seal; the glue tank provided by the utility model can play a role in positioning the glue. This not only avoids the problem that the glue is easily coated unevenly, but also, the glue after solidification is limited in the glue tank, and it is not easily detached from the glue when the power cord is pulled, further ensuring that the water meter has better sealing performance.

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