阅读说明：本技术 一种电表 (Electric meter ) 是由 欧阳圳荣 唐健 林国庆 于 2019-09-20 设计创作，主要内容包括：本发明涉及一种电表,包括底座和设置在底座上的模块盒,所述底座的上端形成有容置模块盒的容置空间,所述底座的上端在对应容置空间的位置覆盖有罩壳,所述模块盒位于所述底座和罩壳之间,模块盒内设有第一腔室,所述第一腔室的底面上开设有供水流出至第一腔室外的出水口,所述第一腔室的侧壁上设置有用来连接外置天线的接线头,所述罩壳在对应接线头的位置上开设有供接线头部分穿出的通孔。如此,在需要安装外置天线时,无需打开罩壳,即可将外置天线连接在开孔内的接线头上而实现外置天线的连接,使得外置天线的连接更加地方便快捷。(The invention relates to an ammeter which comprises a base and a module box arranged on the base, wherein an accommodating space for accommodating the module box is formed at the upper end of the base, a cover shell covers the upper end of the base at a position corresponding to the accommodating space, the module box is positioned between the base and the cover shell, a first cavity is arranged in the module box, a water outlet for supplying water to flow out of the first cavity is formed in the bottom surface of the first cavity, a connector lug for connecting an external antenna is arranged on the side wall of the first cavity, and a through hole for allowing a part of the connector lug to penetrate out is formed in the position, corresponding to the connector lug, of the cover shell. So, when external antenna need be installed, need not to open the housing, can realize external antenna's connection on the lug in the opening with external antenna connection for external antenna's connection is convenient and fast more.)

1. The utility model provides an ammeter, includes base (1) and module box (2) of setting on base (1), the upper end of base (1) is formed with accommodation space (1a) of holding module box (2), the upper end of base (1) covers in the position that corresponds accommodation space (1a) has housing (3), module box (2) are located between base (1) and housing (3), its characterized in that: the module box is characterized in that a first cavity (21) is arranged in the module box (2), a water outlet (21a) for supplying water to flow out of the first cavity (21) is formed in the bottom surface of the first cavity (21), a connector lug (4) used for being connected with an external antenna (5) is arranged on the side wall of the first cavity (21), and a through hole (31) for allowing the connector lug (4) to partially penetrate out is formed in the position, corresponding to the connector lug (4), of the housing (3).

2. An electricity meter in accordance with claim 1, wherein: the module box (2) is internally provided with a second cavity (22), the second cavity (22) is internally provided with a first circuit board (213) connected with the connector lug (4), and the bottom surface of the first cavity (21) is positioned below the bottom surface of the second cavity (22).

3. An electricity meter in accordance with claim 2, wherein: the first chamber (21) and the second chamber (22) are arranged left and right, a partition plate (23) extending front and back is arranged between the first chamber and the second chamber, and a through hole (231) for a connecting line of the wiring head (4) to pass through is formed in the partition plate (23).

4. An electricity meter in accordance with claim 2, wherein: module box (2) are including box body (2a) and lid (2b) of establishing on box body (2a) down, box body (2a) and lid (2b) correspond on the composition surface that corresponds first cavity (21) preceding wallboard and have seted up half trompil (21d) down lid (2b) and lower box body (2a) are in under the lid closes the state, half trompil (21d) of box body (2a) and lid (2b) close relatively and form trompil (21c) that supply connector lug (4) front end to pass.

5. An electricity meter in accordance with claim 4, wherein: be provided with in first cavity (21) and extend from top to bottom flange (211), flange (211) are parallel with the antetheca board of first cavity (21), and this flange (211) offer on the position that corresponds trompil (21c) and be used for dodging mouthful (211c) of dodging connector lug (4) rear end, be formed with between flange (211) and first cavity (21) antetheca board and be used for coming up the intermediate layer (212) that connector lug (4) part is spacing in it.

6. An electricity meter in accordance with claim 5, wherein: protruding board (211) include first protruding board (211a) and second protruding board (211b), first protruding board (211a) are established on box body (2a) diapire down, and upwards extend, second protruding board (211b) are established on the roof of lid (2b), and downwardly extending, semicircle orifice (2111) has been seted up in first protruding board (211a) and second protruding board (211b) correspondence lid (2b) and lower box body (2a) are under the closure state, first protruding board (211a) and second protruding board (211b) dock mutually, just semicircle orifice (2111) of first protruding board (211a) and second protruding board (211b) relatively close and form dodge mouth (211 c).

7. An electricity meter in accordance with claim 5, wherein: a pressing plate (215) extending downwards is arranged in the interlayer (212) of the box cover (2b), and the pressing plate (215) is partially abutted against the connector lug (4) when the box cover (2b) is covered on the lower box body (2 a).

8. An electricity meter in accordance with claim 5, wherein: a positioning plate (33) extends towards the direction of the box cover (2b) from the inner side of the top wall plate of the housing (3), and the positioning plate (33) is abutted to the top wall of the box cover (2b) when the housing (3) is covered on the base (1).

9. An electricity meter in accordance with claim 4, wherein: the periphery wall of lid (2b) is equipped with at least three knot hole (25), correspondingly, be provided with on box body (2a) down and go into to the card income portion (24) that detains in hole (25) that corresponds, box body (2a) are connected with lid (2b) through card income portion (24) and the cooperation of detaining hole (25) down.

10. An electricity meter as in any one of claims 2 to 9, wherein: be provided with table lid (6) on base (1), table lid (6) are located the below of housing (3), just be provided with second circuit board (7) in the space between table lid (6) and base (1), first circuit board (213) through connector (8) with second circuit board (7) are connected, set up on the diapire of second cavity (22) and dodge opening (221) of connector (8).

11. An electricity meter in accordance with claim 10, wherein: the rear wall plate (11) of the base (1) extends forwards to form a supporting plate (13), a top plate (61) and the supporting plate (13) of the meter cover (6) are butted, a mouth (62) for the connector (8) to pass through is formed between joint surfaces of the top plate and the supporting plate, an accommodating space (1a) is formed between the supporting plate (13), the top plate (61) of the meter cover (6) and the rear wall plate of the base (1), and a gap (63) communicated with the water outlet (21a) is formed between the bottom wall of the module box (2) and the top plate (61) of the supporting plate (13) and the meter cover.

12. An electricity meter in accordance with claim 11, wherein: the lower end of one surface of the cover shell (3) facing the accommodating space (1a) is provided with a convex rib (33) extending along the circumferential direction of the cover shell, correspondingly, the surface of the meter cover (6) facing the cover shell (3) is provided with a groove (611) for accommodating the convex rib (33), and under the condition that the cover shell (3) is covered on the base (1), a gap (34) communicated with the gap (63) and the outside is arranged between the cover shell (3) and the meter cover (6) at the position adjacent to the groove (611).

13. An electricity meter in accordance with claim 11, wherein: the base (1) back wall is sunken forward and is formed with depressed area (1b), the front bezel of depressed area (1b) upwards extends and is formed with extension board (12), extension board (12) are located the front side of wallboard (11) behind the base, and are formed with between wallboard (11) behind this extension board (12) and the base and are used for holding the water holding groove (1c) that oozes into water through the top clearance between wallboard (11) behind housing (3) and the base.

Technical Field

The invention relates to the technical field of electric meters, in particular to an electric meter with a communication module.

Background

An electric meter is an instrument for measuring electric energy, also called an electric meter, a fire meter and a kilowatt hour meter, and refers to an instrument for measuring various electric quantities.

The carrier module is usually arranged in the current ammeter, specifically, the ammeter is provided with a containing cavity for installing the carrier module, a module box is arranged outside the carrier module, and an opening for installing an antenna is arranged on a wall plate of the module box of the module, so that the antenna can be conveniently installed in the subsequent process.

For example, the Chinese utility model patent "a single-phase intelligent electric energy meter" has patent numbers of CN201720745380.0 and an authorized bulletin number of CN207067205U, the single-phase intelligent electric energy meter comprises a bottom box, a PCBA and a G3-PLC communication module which are arranged in the bottom box, wherein a module box and an antenna installation component are arranged in the bottom box, the module box and the PCBA are connected into a whole, a notch for installing the antenna component is formed in the side wall of the bottom box corresponding to the module box, the module box is used for installing the GPRS communication module, the antenna installation component is used for positioning an internal antenna or positioning a connecting wire of an external antenna connector, the electric energy meter realizes the subsequent installation of the external antenna, but in the process of long-term use, it may occur that water enters the inside of the module case through the notches in the side walls of the bottom case and damages the electrical components of the telecommunications module, further, the communication of the electric meter is possibly broken down, the meter reading is influenced, and the service life of the electric meter is reduced; in addition, during installation, the installation of the external antenna can be realized only by opening the housing positioned at the module, so that the inconvenience of installation is increased.

Therefore, further improvements to existing electric energy meters are needed.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art and provides an electric meter which can be directly provided with an external antenna without opening a cover casing and can conveniently lead water out of a module box.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides an ammeter, includes the base and sets up the module box on the base, the upper end of base is formed with the accommodation space of holding module box, the upper end of base covers in the position that corresponds the accommodation space has the housing, the module box is located between base and the housing, its characterized in that: the module box is internally provided with a first cavity, the bottom surface of the first cavity is provided with a water outlet for supplying water to flow out of the first cavity, the side wall of the first cavity is provided with a connector lug for connecting an external antenna, and the housing is provided with a through hole for the part of the connector lug to penetrate out at a position corresponding to the connector lug.

The module box is provided with a first cavity, a second cavity is arranged in the module box, a first circuit board connected with a connector lug is arranged in the second cavity, and the bottom surface of the first cavity is located below the bottom surface of the second cavity. The existence of the second cavity and the bottom surface of the second cavity are positioned above the bottom surface of the first cavity, so that water permeating through the through hole is difficult to enter the second cavity after entering the first cavity, and the water is prevented from contacting the first circuit board and the electric element in the second cavity.

The arrangement modes of the first cavity and the second cavity are various, the first cavity and the second cavity can be arranged left and right, and can also be arranged front and back, preferably, the first cavity and the second cavity are arranged left and right, a partition plate extending front and back is arranged between the first cavity and the second cavity, and a through hole for a connecting wire of the connecting wire head to pass through is formed in the partition plate.

In order to conveniently install the connector lug, the module box comprises a lower box body and a box cover, wherein the box cover is arranged on the lower box body in a covering mode, the lower box body and the box cover are correspondingly provided with half openings on a joint surface corresponding to the front wall plate of the first cavity, the box cover and the lower box body are in a covering mode, and the half openings of the lower box body and the box cover are oppositely formed into openings for the front end of the connector lug to penetrate through.

In order to limit the connector lug, a convex plate extending up and down is arranged in the first cavity, the convex plate is parallel to the front wall plate of the first cavity, an avoiding opening used for avoiding the rear end of the connector lug is formed in the position, corresponding to the opening, of the convex plate, and an interlayer used for limiting the connector lug in the interlayer is formed between the convex plate and the front wall plate of the first cavity.

Preferably, the flange includes first flange and second flange, first flange is established on the lower box body diapire and upwards extend, the second flange is established on the roof of lid and downwardly extending, half round hole has been seted up to first flange and second flange correspondence the lid is in under the lid closes the state with lower box body, first flange and second flange dock mutually, just the half round hole of first flange and second flange is to closing the formation dodge the mouth.

In order to limit the up-and-down movement of the connector lug and keep the stability of the connector lug after being installed, a pressing plate extending downwards is arranged in an interlayer of the box cover, and the pressing plate is abutted against the connector lug part in the state that the box cover is arranged on the lower box body.

In order to prevent the module box from shaking in the accommodating space, a positioning plate extends towards the box cover direction from the inner side of the top wall plate of the housing, and the positioning plate is abutted to the top wall of the box cover in the state that the housing is covered on the base.

The connected mode of lid and lower box body has the multiple, follows the angle of making things convenient for the dismouting, preferably, the periphery wall of lid is equipped with at least three knot hole, correspondingly, be provided with down and to go into the card income portion to corresponding in the knot hole of ability card income on the box body, the box body is connected with the lid through the cooperation of card income portion and knot hole down.

Preferably, a meter cover is arranged on the base and located below the housing, a second circuit board is arranged in a space between the meter cover and the base, the first circuit board is connected with the second circuit board through a connector, and an opening avoiding the connector is formed in the bottom wall of the second cavity.

Preferably, the rear wall of the base extends forward to form a support plate, the top plate of the cover and the support plate are butted, a mouth for the connector to pass through is formed between the joint surfaces of the top plate of the cover and the support plate, the accommodating space is formed between the support plate, the top plate of the cover and the rear wall of the base, and a gap communicated with the water outlet is formed between the bottom wall of the module box and the top plates of the support plate and the cover.

In order to guide the water flowing out of the water outlet to the outside of the watch conveniently, the lower end of one surface of the cover shell facing the accommodating space is provided with a convex rib extending along the circumferential direction of the cover shell, correspondingly, the surface of the watch cover facing the cover shell is provided with a groove for accommodating the convex rib, and when the cover shell is in a state of covering the base, a gap communicated with the gap and the outside is formed between the cover shell and the watch cover at the position adjacent to the groove.

In order to conveniently contain water seeped through the housing and the rear wall plate of the base, the rear wall surface of the base is recessed forwards to form a recessed area, a front plate of the recessed area extends upwards to form an extension plate, the extension plate is located on the front side of the rear wall plate of the base, and a water containing groove used for containing water seeped through a top gap between the housing and the rear wall plate of the base is formed between the extension plate and the rear wall plate of the base.

Compared with the prior art, the cover shell of the electric meter is provided with the through hole for the wire connecting head to partially penetrate through at the position corresponding to the wire connecting head, so that when the external antenna needs to be installed, the external antenna can be connected to the wire connecting head in the through hole without opening the cover shell to realize the connection of the external antenna, the connection of the external antenna is more convenient and faster, the whole structure is reasonable, and the time for connecting the external antenna is saved; when water permeates into the first cavity through the through hole, the water can flow out of the module box through the water outlet, and the water is prevented from accumulating in the first cavity.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

FIG. 3 is a schematic view of the structure of FIG. 2 at another angle;

FIG. 4 is a schematic view of a portion of the structure of FIG. 2;

FIG. 5 is a schematic perspective exploded view of FIG. 1;

FIG. 6 is a cross-sectional view of a portion of the structure of FIG. 1;

FIG. 7 is a cross-sectional view at another angle of the partial structure of FIG. 1;

FIG. 8 is a cross-sectional view of a portion of the structure of FIG. 2;

FIG. 9 is a schematic view of the module case with an external antenna;

FIG. 10 is a schematic view of the lid of the modular case;

FIG. 11 is a schematic view of the cartridge configuration;

FIG. 12 is a schematic view of the lower case of the cartridge;

FIG. 13 is a schematic view of a portion of the structure of FIG. 2;

fig. 14 is a cross-sectional view of a portion of the structure of fig. 4.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

As shown in fig. 1 to 14, the electric meter according to the embodiment of the present invention includes a base 1, a cover 3, a cover 6, and a module case 2 disposed on the base 1.

As shown in fig. 2 and 4, a supporting plate 13 is formed by extending the upper end of the rear wall plate 11 of the base 1 forward, the cover 6 is disposed on the base 1 and below the cover 3, an accommodating space 1a for accommodating the module box 2 is formed between the supporting plate 13, a top plate 61 of the cover 6 and the bottom wall of the base 1, specifically, the top plate 61 of the cover 6 is butted with the supporting plate 13, as shown in fig. 1, 6, 7 and 13, the cover 3 covers the upper end of the base 1 at a position corresponding to the accommodating space 1a, and the module box 2 is located between the base 1 and the cover 3; and the top wall inboard of housing 3 extends to the lid 2b direction of module box 2 has locating plate 33, and as shown in fig. 6 specifically, under the state that base 1 was located in the lid of housing 3, locating plate 33 supported with the top wall of lid 2b, so prevent that the module box from rocking in the accommodation space.

As shown in fig. 1, a second circuit board 7 is disposed in the space between the cover 6 and the base 1, the first circuit board 213 is connected to the second circuit board 7 through a connector 8, as shown in fig. 12, an opening 221 avoiding the connector 8 is disposed on the bottom wall of the second chamber 22, the top plate 61 of the cover 6 is abutted to the support plate 13, and a mouth 62 for the connector 8 to pass through is formed between the joint surfaces of the top plate 61 and the support plate 13, as shown in fig. 13, the connector 8 passes through the opening 211 and the mouth 62 and then is connected to the second circuit board 7, as shown in fig. 14, wherein the connector 8 is generally a pin header, one end of the connector 8 is connected to the first circuit board 213, and the other end is connected to the second circuit board 7.

In order to prevent water from penetrating into the module box through the gap between the rear wall plate of the base 1 and the housing 3, as shown in fig. 3, the rear wall surface of the base 1 is recessed forward to form a recessed area 1b, the front plate of the recessed area 1b extends upward to form an extension plate 12, the extension plate 12 is located at the front side of the rear wall plate 11 of the base, and a water containing groove 1c for containing water penetrating through the top gap between the housing 3 and the rear wall plate 11 of the base is formed between the extension plate 12 and the rear wall plate 11 of the base, as shown in fig. 3 to 7 specifically; in addition, the middle part of the top end of the rear wall plate 11 of the base is recessed inwards to form a recessed area 1d for placing a hook, and the recessed area divides the water containing tank 1c into two small water tanks, which is shown in fig. 13.

As shown in fig. 4 to 12, the first chamber 21 and the second chamber 22 are arranged in the cartridge 2 in this order from left to right, and a partition plate 23 extending forward and backward is provided between the first chamber 21 and the second chamber 22. As shown in fig. 2, 4 and 6, the front wall plate of the first chamber 21 is provided with two connector terminals 4 for connecting the external antenna 5, each connector terminal 4 is in threaded connection with a connector corresponding to the external antenna 5, and the housing 3 is provided with a through hole 31 at a position corresponding to the connector terminal 4 for the connector terminal 4 to partially penetrate through. As shown in fig. 4 and 8, a first circuit board 213 connected to the connector is disposed in the second chamber 22 of the cartridge 2, and a through hole 231 for passing the connection wire of the connector 4 is formed in the partition 23, and the connection wire of the connector 4 passes through the through hole 231 and is connected to the first circuit board 213, as shown in fig. 4, 9 and 12. Therefore, the external antenna 5 can be directly screwed on the connector lug 4 exposed out of the through hole 31 without opening the housing 3.

As shown in fig. 2, 4, 9 and 11, the bottom surface of the first chamber 21 is located below the bottom surface of the second chamber 22, and a water outlet 21a for supplying water to flow out of the first chamber 21 is opened on the bottom wall of the first chamber 21, as shown in fig. 8 and 12; a gap 63 communicated with the water outlet 21a is formed between the bottom wall of the module box 2 and the top plate 61 of the supporting plate 13 and the meter cover; in addition, as shown in fig. 7, the lower end of one surface of the cover 3 facing the accommodating space 1a has a rib 33 extending along the circumferential direction thereof, and correspondingly, the surface of the cover 6 facing the cover 3 has a groove 611 for accommodating the rib 33, and in a state where the cover 3 is covered on the base 1, a gap 34 communicating with the gap 63 and the outside is provided between the cover 3 and the cover 6 at a position adjacent to the groove 611. Thus, when water finally permeates into the first chamber 21 through the through hole 31, the water accumulated in the first chamber 21 flows out through the water outlet 21a, the gap 63 and the gap 34 in sequence, so as to prevent the water from accumulating in the first chamber 21 and contacting the first circuit board 213 in the second chamber 22. In addition, as shown in fig. 2, 3, 5 to 7, the module box 2 includes a lower box body 2a and a box cover 2b covering the lower box body 2a, the outer peripheral wall of the box cover 2b is provided with at least three fastening holes 25, correspondingly, the lower box body 2a is provided with a snapping part 24 which can be snapped into the corresponding fastening holes 25, and the lower box body 2a is connected with the box cover 2b through the cooperation of the snapping part 24 and the corresponding fastening holes 25, as shown in fig. 9 to 12. In order to facilitate the installation of the connector lug, the lower box body 2a and the box cover 2b are correspondingly provided with half-open holes 21d on the joint surface corresponding to the front wall plate of the first cavity 21, and when the box cover 2b and the lower box body 2a are in a covering state, the half-open holes 21d of the lower box body 2a and the half-open holes 21d of the box cover 2b are relatively combined to form an open hole 21c for the front end of the connector lug 4 to pass through, which is shown in fig. 11 in particular.

In order to limit the forward and backward movement of the connector, as shown in fig. 7, a protruding plate 211 extending up and down is disposed in the first chamber 21, the protruding plate 211 is parallel to the front wall of the first chamber 21, and an avoiding opening 211c for avoiding the rear end of the connector 4 is formed at a position of the protruding plate 211 corresponding to the opening 21c, and particularly, as shown in fig. 6, an interlayer 212 for limiting a part of the connector 4 therein is formed between the protruding plate 211 and the front wall of the first chamber 21. In order to restrict the movement of the terminal up and down and to maintain the stability of the terminal after the terminal is mounted, as shown in fig. 7 and 10, a pressing plate 215 extending downward is provided in the interlayer of the box cover 2b, and the pressing plate 215 is partially abutted against the terminal 4 in a state where the box cover 2b is covered on the lower case 2 a. In this embodiment, two pressing plates 215 are provided for each connector 4 at left and right intervals.

As shown in fig. 7, the protruding plate 211 includes a first protruding plate 211a and a second protruding plate 211b, the first protruding plate 211a is disposed on the bottom wall of the lower case 2a and extends upward, the second protruding plate 211b is disposed on the top wall of the case cover 2b and extends downward, the first protruding plate 211a and the second protruding plate 211b are correspondingly provided with semi-circular holes 2111, when the case cover 2b and the lower case 2a are in a closed state, the first protruding plate 211a and the second protruding plate 211b are butted, and the semi-circular holes 2111 of the first protruding plate 211a and the second protruding plate 211b are relatively engaged to form the aforementioned avoiding opening 211c, which is specifically shown in fig. 6.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.