WO2018032712A1

WO2018032712A1 - Novel guide rail electric energy meter structure

Info

Publication number: WO2018032712A1
Application number: PCT/CN2017/000474
Authority: WO
Inventors: 吴永辉; 曾长云
Original assignee: 宁波三星医疗电气股份有限公司
Priority date: 2016-08-18
Filing date: 2017-07-28
Publication date: 2018-02-22
Also published as: CN107765050A; CN106324304A; CN107765050B; CN207148170U

Abstract

A novel guide rail electric energy meter structure, comprising a housing and a terminal base (3), the housing comprising a left housing (1) and a right housing (2), the left housing (1) being provided with first welding ribs (11), the right housing (2) being provided with welding grooves (22), the first welding ribs (11) and the welding grooves (22) integrally connecting the left housing (1) and the right housing (2) by means of ultrasonic welding; a first connecting part is provided on the inner side wall of the left housing (1), and a second connecting part is provided on the right housing (2), the first connecting part fitting the second connecting part so as to allow the left housing (1) and the right housing (2) to snap together. Compared with the prior art, the guide rail electric energy meter is simple and reliable in structure, and easy to be manufactured at low cost, the same housing can be used in the electric energy meter of two assembling modes so that an upper path and a lower path can use the same relay.

Description

A new type of rail electric energy meter structure

Technical field

The invention relates to the technical field of electric energy meters, in particular to a novel rail electric energy meter structure.

Background technique

The electric energy meter is a meter used to measure electric energy, and is also called an electric meter, a fire meter, a kilowatt hour meter, and a meter for measuring various electric quantities.

At present, there are two main methods for assembling the left and right casings of the electric energy meter. One is to use screw fixing and the other is to use ultrasonic welding. Since the two methods have different requirements on the structure of the casing, at present, the casing is usually designed into two different shapes according to the special requirements of the two methods, and the prior art cannot be compatible with the two casings. Son: Ultrasonic welding This assembly method requires the cover to increase the thickness of the weld ribs of 0.6 mm, and the addition of the weld ribs on the non-ultrasonic welding (ie screw-fixed) cover will increase the thickness of the assembly by 0.6 mm. Caused a series of problems, such as increased gap, button height change and bottom shell height change, so that the dust inlet and the energy meter button do not work in the electric energy meter, and the electric energy meter structure using ultrasonic welding alone. The welding ribs are directly disposed on the bottom edge of the casing, so that the entire casing is affected during ultrasonic welding, thereby affecting the components inside the casing, and therefore, the assembly of the two methods requires a cover. The shell opens two kinds of molds, which makes the production cost of the enterprise increase, the work efficiency is reduced, and the production and stocking are inconvenient; and the open end cover detection of the electric energy meter is With the traditional tact switch, there are two ways to set the tact switch. One is to put the tact switch on the side and solder it to the PCB. The other is to fix the tact switch to the housing. Then, through the connection of the wire and the PCB board, such a setting may cause the cover to leak water and make the PCB more complicated; in addition, the current electric energy meter can only be compatible with two sets of functions, and the upper and lower layers of the relay are structural factors. It is necessary to use two different chip relays separately.

Therefore, further improvements to the existing power meter structure are needed.

Summary of the invention

The technical problem to be solved by the present invention is to provide a new type of rail electric energy meter structure, which is simple and reliable in structure, convenient in manufacturing and low in cost, and can be used in the same type of electric energy meter in two assembly modes. On the top, the same relay can be used for both the upper and lower channels.

The technical solution adopted by the present invention to solve the above technical problem is: a novel rail electric energy meter structure, comprising a casing and a terminal block, the casing comprising a left casing and a right casing, wherein: the casing side a tact switch is disposed, the left casing is provided with a first welding rib; and the right casing is provided with a first welding rib for ultrasonic welding a welding groove, the first welding rib and the welding groove are ultrasonically welded to integrally connect the left casing and the right casing; the left casing and the right casing are disposed on the inner top end a threaded hole, a first connecting portion is disposed on the inner side wall of the left casing, and a second connecting portion is disposed on the right casing at a corresponding position of the first connecting portion, and the first connecting portion is matched with the second connecting portion The connecting portion thus snaps the left and right casings together.

Preferably, the first connecting portion is a bump, the bump is disposed on an inner sidewall of the tail end of the left casing, the second connecting portion is a snap member, and the snap member is disposed on the On the inner side wall of the tail end of the right casing, the lug cooperates with the snap member to securely connect the left casing and the right casing together.

In order to facilitate the snap connection of the left and right casings, preferably, the fastening member is provided with a bayonet, and the lug is provided with a sloped surface, the inclined surface has a guiding function for facilitating the bump fitting The snap fasteners are snap-fitted.

In order to facilitate the installation of the near-infrared lamp, preferably, the right casing is provided with a near-infrared lamp mounting portion, and the left casing is provided with a near-infrared lamp limiting portion, and the near-infrared lamp limiting portion is near-infrared. A lamp is defined at the near-infrared lamp mounting portion to prevent it from coming off.

In order to limit the near-infrared lamp to the near-infrared lamp mounting portion to prevent the near-infrared lamp from being disengaged, preferably, the near-infrared lamp mounting portion is provided with a recessed portion, and the left cover is provided with a near-infrared lamp limiting portion. The near-infrared lamp limiting portion includes a limiting head, and the limiting head cooperates with the lower concave portion to achieve a limiting operation.

In a first mode of implementing infrared communication, preferably, the inner wall of the right casing is disposed at the near-infrared lamp mounting portion, and a baffle is disposed between the baffle and the inner wall of the right casing. A magnet that can be used in conjunction with the adsorption infrared communication head is mounted in the gap.

In a second manner of implementing the infrared communication, preferably, the outer wall of the right casing is disposed at the near-infrared lamp mounting portion with a card slot for engaging the infrared communication head.

A first connection manner is adopted for connecting the terminal block and the cover. Preferably, the left cover is provided with a left mounting portion, the right cover is provided with a right mounting portion, and the left mounting portion is provided with a left soldering portion. a slot, the right mounting portion is provided with a right soldering groove, and the terminal block is provided with a second soldering rib, and the terminal block is mounted on the casing by ultrasonic welding.

A second connection method for connecting the terminal block to the casing is realized. Preferably, the terminal block is provided with a threaded hole, and the terminal block can be mounted on the casing by bolts.

In order to facilitate the connection between the terminal block and the cover, preferably, the right cover is provided with a positioning post, the terminal block is provided with a positioning member, and the positioning member cooperates with the positioning post to pre-determine the terminal block before installation. Bit.

In order to prevent the interface end cover from falling off, preferably, the right cover is provided with an interface, and the interface is provided with an interface end cover, and the interface end cover is provided with a hooking member.

Preferably, the right casing is provided with a switch port for the tact switch to protrude, and the switch port is provided with a groove.

In order to make the current terminal have an automatic centering capability, preferably, the terminal block is provided with a current terminal, the current terminal is provided with a curved surface guide plate, and the curved surface guide plate is provided with a plurality of protrusions.

Compared with the prior art, the invention has the advantages that the structure of the new rail electric energy meter is simple and reliable, the manufacturing is convenient and the cost is low, and the same type of cover can be used on the electric energy meter of two assembly modes, so that the upper and lower two paths can The same type of relay is used. In addition, the tact switch for opening cover detection adopts the silicone button, and adopts the side positive pressure mode, and the process is simple; and the whole near-infrared lamp is automatically calibrated, the terminal is compatible with various line locks, and the screw is automatically In the middle, the near-infrared lamp is compatible with both snap and adsorption.

DRAWINGS

1 is a schematic structural view of an embodiment of the present invention;

2 is a schematic structural view of another angle according to an embodiment of the present invention;

3 is a schematic view showing the internal structure of a left cover in an embodiment of the present invention;

4 is a schematic view showing the external structure of a left cover in an embodiment of the present invention;

FIG. 5 is a schematic view showing the internal structure of a right casing according to an embodiment of the present invention; FIG.

6 is a schematic view showing the internal structure of another angle of the right casing in the embodiment of the present invention;

7 is a schematic view showing the external structure of a right casing according to an embodiment of the present invention;

8 is a schematic structural view of a terminal block according to an embodiment of the present invention;

9 is a schematic view showing the assembly structure of a terminal block and a current terminal according to an embodiment of the present invention;

FIG. 10 is a schematic structural view of an interface end cover according to an embodiment of the present invention.

detailed description

The invention will be further described in detail below with reference to the embodiments of the drawings.

As shown in FIG. 1 to FIG. 10, a novel rail electric energy meter structure according to an embodiment of the present invention includes a casing, a terminal block 3, and a tact switch 4 disposed at a side of the casing; wherein the casing includes a left casing 1 and Right cover 2.

As shown in FIG. 3 to FIG. 7 , the first way of connecting the left casing 1 and the right casing 2 is by ultrasonic welding. Specifically, the left casing 1 is provided with a first welding rib 11 and a right casing. The shell 2 is provided with a welding groove 22 for ultrasonic welding in cooperation with the first welding rib 11, and the first welding rib 11 and the welding groove 22 are ultrasonically welded to integrally connect the left casing 1 and the right casing 2, that is, by using ultrasonic waves. The first welding rib 11 is melted to integrally connect the left casing 1 and the right casing 2.

The second way of connecting the left casing 1 and the right casing 2 is to use a screw snap connection. Specifically, the left casing 1 and the right casing 2 are provided with threaded holes 6 at the inner top end thereof, and the inside of the left casing 1 A first connecting portion is disposed on the wall, and a second connecting portion is disposed on the right casing 2 at a corresponding position of the first connecting portion, and the first connecting portion cooperates with the second connecting portion to thereby the left casing 1 and the right casing 2 The buckles are connected together, and the first connecting portion and the second connecting portion have various structural forms. In the embodiment, the first connecting portion is a bump 12, the bump 12 is provided with a slope, and the bump 12 is disposed on the The second connecting portion is a latching member 21, and the latching member 21 is provided with a bayonet, and the latching member 21 is disposed on the inner side wall of the tail end of the left casing 1 On the inner side wall of the tail end of the right casing 2, the protrusion 12 cooperates with the latching member 21 to fix the left casing 1 and the right casing 2 together, wherein the inclined surface on the bump 12 has a guiding function to facilitate the bump 12 is engaged with the snap member 21, and after being mounted, the bump 12 is fastened to the bayonet on the latch member 21, so that the left cover 1 and the right cover 2 cannot move to each other, that is, One ends of the left and

right casings

1 and 2 are fastened by the snaps 21 and the bumps 12, and the other ends are bolted to connect the left and

right casings

1 and 2 together.

In order to facilitate the installation of the near-infrared lamp, in the embodiment, the right cover 2 is provided with a near-infrared lamp mounting portion 23, and the left cover 1 is provided with a near-infrared lamp limiting portion 13 to realize positioning and mounting of the near-infrared lamp. In the prior art, the support structure is not provided for the near-infrared lamp, so that the lamp head of the near-infrared lamp may be inclined and bent during installation, thereby causing the near-infrared lamp to fail to work normally. For this reason, in this embodiment, the near-infrared lamp The mounting portion 23 is provided with a recessed portion 232. The left cover 1 is provided with a near-infrared lamp limiting portion 13. The near-infrared lamp limiting portion 13 limits the near-infrared lamp to the near-infrared lamp mounting portion 23 to prevent it from being disengaged. The position portion 13 includes a limiting head 131, and the limiting head 131 cooperates with the lower concave portion 232 to perform a limiting operation. Such a setting facilitates the verification positioning of the near-infrared lamp.

In the first way of implementing infrared communication, as shown in FIG. 5, a baffle 27 is disposed on the inner wall of the right casing 2 at the near-infrared lamp mounting portion 23, and a gap 5 is formed between the baffle 27 and the inner wall of the right casing 2, A magnet that can be used in conjunction with the adsorption type infrared communication head is mounted in the gap 5. Since there is no magnet in the adsorption type infrared communication head in the prior art, the presence of the gap 5 facilitates the mounting of the magnet.

A second way of implementing infrared communication is as shown in FIG. 6. A card slot 26 for engaging an infrared communication head is disposed on the outer wall of the right casing 2 at the near-infrared lamp mounting portion 23. In the embodiment, the infrared A magnet is provided in the communication head.

The first way to realize the connection between the terminal block and the cover is to use ultrasonic welding. Specifically, the left cover 1 is provided with a left mounting portion 14, and the right cover 2 is provided with a right mounting portion 25, and the left mounting portion 14 is provided. A left welding groove 141 is disposed on the right side, and a right welding groove 251 is disposed on the right mounting portion 25, and a second welding rib 32 is disposed on the terminal block 3, and the terminal block 3 is attached to the casing by ultrasonic welding.

The second way to realize the connection between the terminal block and the cover is to adopt a screw fixing connection. As shown in FIG. 8, the terminal block 3 is provided with a screw hole 33, and the terminal block 3 can be mounted on the cover by bolts.

In the present embodiment, the right housing 2 is provided with a positioning post 24, and the positioning post 24 is disposed on the outer peripheral wall of the positioning post 24, in order to facilitate the mounting of the terminal block and the housing. The positioning ribs 241 are circumferentially spaced apart from each other on the outer peripheral wall of the positioning post 24. The terminal block 3 is provided with a positioning member 31. The positioning member 31 cooperates with the positioning post 24 to pre-position the terminal block 3 before installation.

The right cover 2 is provided with an MC171 interface 28, and the interface 28 is fastened with an interface end cover 281. As shown in FIG. 10, the interface end cover 281 is provided with a hook member 282.

In the prior art, the MC171 interface is not a snapping method, but simply the interface end cap 281 is covered, which causes the interface end cap 281 to be extremely easy to fall off. The device is snapped, and the interface end cover 281 is snapped on the MC171 interface 28, which is very reliable, and the interface end cover 281 does not fall during transportation or use. drop. Also, on the MC171 interface 28, a notch is provided through which the interface end cap 281 can be opened to remove the end cap.

As shown in FIG. 9, the terminal block 3 is provided with a current terminal 34, and the current terminal 34 is provided with a curved surface guide 341, and the arc surface guide plate 341 is present, so that the electric energy meter is in the process of working, the line starts from the lowest point of the curved surface. The aggregating causes the current terminal 34 to have an automatic centering capability, and the arcuate guide plate 341 is provided with a plurality of protrusions so that it can provide a large frictional force during operation, resulting in an anti-slip effect.

The right casing 2 is provided with a switch port 29 for the tact switch 4 to protrude, and the switch port 29 is provided with a recess 291. In the prior art, the open end cover of the electric energy meter is detected by a conventional tact switch 4, one is to put the tact switch 4 on the side and soldered to the PCB; the other is to fix the tact switch 4 to the casing. And then connected by wire and PCB. This arrangement may cause the cover to leak and the PCB becomes more complicated. Since the cover in this embodiment adopts two kinds of assembling manners, the gap between the left and right covers is different, so the conventional tact switch 4 cannot be used; wherein the ultrasonic welding method is destined to result in The two left and right covers have a certain gap, and the bolts are buckled, so that the tact switch 4 in this embodiment uses a silicone button and is disposed on the side wall of the cover. Regardless of the gap between the left and right casings, the operation of the tact switch 4 is not affected, and the waterproof function is also provided.

The reason why the prior art cannot be compatible with the two kinds of casings is that the ultrasonic welding method requires the casing to increase the welding ribs and the thickness is 0.8 mm. However, if the welding rib is added to the non-ultrasonic cover, the thickness will increase by 0.8 mm after assembly, which causes a series of problems, such as dustproof and waterproof, the height of the button changes, and the fixed crimping problem of the two relays.

Through the special design of the relevant part, the two kinds of covers are one type, the end cover detection is set on the side and the silicone button is used, and the two-way relay is compatible with the same type, thereby solving the waterproof and dustproof, button Height and the problem of fixed crimping of the relay.

The invention has the dustproof and waterproof capability of IP54 grade, solves the problem of ESD protection and vibration drop of MC171 interface cover, the user line is compatible with various line type automatic centering, automatic positioning such as near infrared, near infrared communication head buckle and adsorption type compatible.

The invention has the advantages of simple and reliable structure, convenient manufacture and low cost, and the same type of cover is used on the electric energy meter of two assembly modes, so that the same relay can be used for the upper and lower two paths; the open cover detection adopts the silicone button and the side positive pressure mode. Simple process, low cost, safe and reliable protection; and integrated near-infrared lamp automatic calibration, terminal compatible with a variety of line locks, screw automatic centering, near-infrared compatible snap-on and adsorption, MC171 interface snap-on.

The scope of the present invention includes, but is not limited to, the above embodiments, and the scope of the present invention is defined by the claims, and any substitutions, modifications, and improvements which are obvious to those skilled in the art to which the present invention is made fall within the scope of the present invention. protected range.

Claims

A novel rail electric energy meter structure includes a casing and a terminal block (3), the casing including a left casing (1) and a right casing (2), wherein the casing is provided with a light side Touch switch (4);

The left casing (1) is provided with a first welding rib (11), and the right casing (2) is provided with a welding groove (22) for ultrasonic welding with the first welding rib (11), The first welding rib (11) and the welding groove (22) are ultrasonically welded to connect the left casing (1) and the right casing (2) into one body;

a threaded hole (6) is disposed on an inner top end of the left casing (1) and the right casing (2), and a first connecting portion is disposed on an inner side wall of the left casing (1), the right cover A second connecting portion is disposed on the casing (2) at a corresponding position of the first connecting portion, and the first connecting portion cooperates with the second connecting portion to snap-connect the left casing (1) and the right casing (2) Together.
The novel rail energy meter structure according to claim 1, wherein the first connecting portion is a bump (12), and the bump (12) is disposed at an inner side of a tail end of the left casing (1). On the wall, the second connecting portion is a snap member (21), and the snap member (21) is disposed on an inner side wall of the tail end of the right cover (2), and the protrusion (12) cooperates with the The snap fastener (21) operates to securely connect the left casing (1) and the right casing (2) together.
The novel rail energy meter structure according to claim 2, wherein the latching member (21) is provided with a bayonet, and the lug (12) is provided with a sloped surface, the bevel has a guiding effect and is convenient The protrusion (12) is engaged with the latching member (21) for snap connection.
The novel rail energy meter structure according to claim 1, wherein the right casing (2) is provided with a near-infrared lamp mounting portion (23), and the left casing (1) is provided with a near-infrared The lamp limiting portion (13), the near-infrared lamp limiting portion (13) defines a near-infrared lamp at the near-infrared lamp mounting portion (23) to prevent it from coming off.
The novel rail energy meter structure according to claim 4, wherein the near-infrared lamp mounting portion (23) is provided with a recessed portion (232), and the left casing (1) is provided with a near-infrared lamp limit The position portion (13), the near-infrared lamp limiting portion (13) includes a limiting head (131), and the limiting head (131) cooperates with the lower concave portion (232) to perform a limiting operation.
The novel rail energy meter structure according to claim 4, wherein a baffle (27) is disposed on the inner wall of the right casing (2) at the near-infrared lamp mounting portion (23), the block A gap (5) is formed between the plate (27) and the inner wall of the right casing (2), and a magnet that can be used in conjunction with the adsorption type infrared communication head is mounted in the gap (5).
The novel rail energy meter structure according to claim 4, wherein a card slot for engaging the infrared communication head is disposed on the outer wall of the right casing (2) at the near-infrared lamp mounting portion (23). (26).
The novel rail electric energy meter structure according to claim 1, characterized in that: the left casing (1) is provided with a left mounting portion (14), and the right casing (2) is provided with a right mounting portion ( 25) The left mounting portion (14) is provided with a left soldering groove (141), the right mounting portion (25) is provided with a right soldering groove (251), and the terminal block (3) is provided with a second A welding rib (32), the terminal block (3) is mounted on the casing by ultrasonic welding.
The novel rail electric energy meter structure according to claim 1, characterized in that: the terminal block (3) is provided with a threaded hole (33), and the terminal block (3) can be mounted on the casing by bolts. .
The novel rail electric energy meter structure according to claim 1, wherein: said right casing (2) A positioning post (24) is provided, the terminal block (3) is provided with a positioning member (31), and the positioning member (31) cooperates with the positioning post (24) to pre-position the terminal block (3) before installation. .
The novel rail energy meter structure according to claim 1, wherein the right casing (2) is provided with an interface (28), and the interface (28) is provided with an interface end cover (281). The interface end cover (281) is provided with a hook member (282).
The novel rail electric energy meter structure according to claim 1, characterized in that: the right casing (2) is provided with a switch port (29) for the tact switch (4) to protrude, the switch port (29) A groove (291) is provided.
The novel rail electric energy meter structure according to any one of claims 1 to 12, characterized in that the terminal block (3) is provided with a current terminal (34), and the current terminal (34) is provided with a curved guide (341), the curved surface guide (341) is provided with a plurality of protrusions.