Strong electrostatic protection ammeter structure

Abstract

The utility model discloses a strong electrostatic protection ammeter structure comprising a pedestal and a box body, the box body is fixed on the pedestal, and a circuit board is installed between the box body and the pedestal; the box body comprises a box cover, a retaining wall used for being connected with the display is arranged on the box cover, keys are embedded between the display and the box cover, a display window and a hole site are arranged on the display, the display window is integrally formed and covered by a PC transparent window, and the bottom of the keys is clamped at the hole site. According to the device, a plurality of retaining walls are additionally arranged on the four sides of the display window to be connected with the box body, so that the creepage distance is greatly increased, static electricity cannot enter electronic devices of an internal circuit board at the gap of the box cover of the box body, and the 20kV high electrostatic protection capability can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the partial improvement design technical field of ammeter equipment especially relates to a strong static electricity protection ammeter structure. BACKGROUND

[0002] In order to improve the efficiency of electricity consumption statistics and count, intelligent electric meter gets wide application, the intelligent electric meter on market mostly all is equipped with the communication module for communication, but the static electricity protection effect of conventional setting intelligent electric meter is not ideal, it is difficult to eliminate static electricity to cause the interference of communication module, seriously influence the network adaptation and network registration of communication module, reduce the stability and reliability of communication module, lead to the communication quality of intelligent electric meter is too low.

[0003] In the prior art, the patent with the announcement number CN212622802U discloses a static electricity protection ammeter, including main part, module box and the communication module in the module box, the main part is equipped with the accommodating cavity with the opening, the module box is located in the accommodating cavity, still include sealing ring, PCB board and conductive pointer, the module box is equipped with the sealing ring, the sealing ring is close to the opening setting, the module box is opened and is equipped with a plurality of static electricity conductive holes, the PCB board is located in the module box, and the PCB board is electrically connected with the conductive pointer. The sealing ring on the module box can protect the communication module in the module box from static electricity interference, part of static electricity passing through the sealing ring is guided by the static electricity conductive hole, and is guided to the outside of the main body through the PCB board and the conductive pointer in turn, which can effectively eliminate the interference of static electricity on the communication module, improve the stability and reliability of the communication module.

[0004] The most critical idea in the above technical solution is that the sealing ring can protect the communication module in the module box from static electricity interference, and part of static electricity passing through the sealing ring is guided by the static electricity conductive hole, and is guided to the outside of the main body through the PCB board and the conductive pointer in turn. Since the sealing ring needs to be designed to make part of the static electricity passing through the sealing ring flow through the PCB board under the guidance of the static electricity conductive hole, for strong static electricity, the above design still has the risk of damaging electronic devices on the circuit board.

[0005] To solve one of the above problems, the application provides a strong static electricity protection ammeter structure. UTILITY MODEL CONTENT

[0006] The utility model discloses a kind of strong static electricity protection ammeter structures to solve the problems existing in prior art, and is connected by increasing multiple retaining walls and box body in display window four sides, greatly increase the creepage distance, so that static electricity cannot enter the electronic devices of internal circuit board at the gap of box cover of box body, can reach 20kV high static electricity protection capability.

[0007] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of strong static electricity protection ammeter structure, including base and box body, the box body is fixed on base, and circuit board is installed between box body and base;The box body includes box cover, and the retaining wall for connecting display is equipped on box cover, and the key is embedded between display and box cover.

[0008] Further, as described above, display is equipped with display window and hole position, display window is integrally formed by PC transparent window and covered, and the bottom of key is clamped in hole position.

[0009] Further, as described above, display window is provided with multiple retaining walls on four sides.

[0010] Further, as described above, multiple mounting holes are provided on box cover, and the top of key is movably arranged in mounting hole.

[0011] Further, it further includes processor, and the processor is electrically connected with circuit board.

[0012] Further, as described above, contact is provided on processor, and processor is mounted on display and makes contact align with hole position.

[0013] Further, as described above, circuit board includes first circuit board and second circuit board, to realize metering and communication function.

[0014] Further, as described above, circuit board is further connected with terminal, for connecting with external power supply.

[0015] Further, as described above, micro control unit module is built in processor.

[0016] Further, as described above, key is made of silica gel material.

[0017] Compared with prior art, the utility model has the advantages that: the device increases multiple retaining walls on four sides of display window and connects with box body, greatly increases creeping distance, so that static electricity cannot enter electronic devices of internal circuit board at the gap of box cover of box body, and high static electricity protection capability of 20kV can be achieved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is the perspective view of the utility model;

[0019] Fig. 2 It is the schematic diagram of explosion of the utility model;

[0020] Fig. 3 It is the structure schematic diagram of box body of the utility model.

[0021] In the figure: 1, processor; 2, first circuit board; 3, second circuit board; 4, base; 5, terminal; 6, box body; 61, box cover; 7, button; 8, display; 81, retaining wall. DETAILED DESCRIPTION

[0022] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "fixed", "mounted", "connected", "provided" and the like should be understood broadly, for example, when an element is referred to as "fixed to" another element, it can be directly on another element or there can be a middle element. When an element is considered "mounted on" another element, it can be directly mounted on another element or there can be a middle element. When an element is considered "connected" to another element, it can be fixedly connected, or detachably connected, or integrally connected; it can be mechanically connected, or electrically connected; it can be directly connected, or indirectly connected through an intermediate medium; it can be internal communication between two elements.

[0024] For those skilled in the art, the specific meanings of the above terms in the present application can be understood in specific circumstances.

[0025] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] Embodiment one

[0027] Reference Figs. 1-3As shown, the utility model discloses a kind of strong static electricity protection ammeter structures, including base 4 and box body 6, the box body 6 is fixed on base 4, circuit board is installed between box body 6 and base 4, wherein, base 4 uses lengthened design, and the both sides of base 4 are equipped with clamping projection, and the corresponding position of box body 6 side portion is equipped with clamping recess, box body 6 is first assembled on base 4 and is clamped in the clamping recess by clamping projection, to realize the installation positioning of both, then the both are compounded to form integrated structure, to greatly increase the creepage distance, so that static electricity cannot enter the electronic device of internal circuit board at the gap of box body 6 and lid 61;The box body 6 includes lid 61, and the lid 61 is equipped with the retaining wall 81 for connecting display 8, and key 7 is embedded between display 8 and lid 61.

[0028] Example two

[0029] Refer to Figs. 1-3 As shown, on the basis of the technical scheme of example one, a kind of strong static electricity protection ammeter structure, for the specific structure design of box body 6, the display 8 is equipped with display window and hole position, display window is integrally formed by PC transparent window and covers, and the bottom of key 7 is clamped in hole position. In addition, the display window is provided with a plurality of retaining walls 81 on four sides, and the retaining wall 81 is a rectangular frame structure and is designed in a stepped manner. Further, the lid 61 is provided with a plurality of mounting holes, and the top of the key 7 is movably arranged in the mounting hole.

[0030] Key 7 is made of silica gel material, display window uses PC material transparent window, and transparent window integrally forms to cover display window, retaining wall 81 is increased on four sides of display window to connect with box body 6, and key 7 is pressed in the middle, so that key 7 is pressed tightly around, only about 1.5MM stroke in the middle, while ensuring the tightness of key 7, the flexibility of key 7 is also ensured, so that the static electricity protection capability of the whole product of small-size ammeter can reach 20KV.

[0031] Example three

[0032] Refer to Figs. 1-3 As shown, on the basis of the technical scheme of example two, a kind of strong static electricity protection ammeter structure, further include processor 1, and the processor 1 is electrically connected with circuit board. Further, the processor 1 is equipped with contact, and the processor 1 is installed by display 8 and makes contact align hole position, and simple query operation can be carried out by the operation of key 7.

[0033] Furthermore, the circuit board includes a first circuit board 2 and a second circuit board 3, which are used to implement metering and communication functions, specifically various metering modules and communication modules. The circuit board is connected to a terminal 5, which serves as a power interface and can be connected to an external power source. The processor 1 has a built-in microcontroller unit module, which is the brain of the meter, calculating various data, converting and executing various instructions, and coordinating the functions of various modules. The first circuit board 2 can be integrated with a communication terminal to achieve external communication connection.

[0034] In the device of the present invention, the assembly and matching relationship of the various components involved, the signal selection and processing technology of the processor 1, circuit board, terminal 5 and display 8 are existing technologies or materials. The relevant technical personnel can purchase or customize them directly from the market according to the required product models and specifications.

[0035] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity or industrial electricity, and the main controller can be a conventional known device such as a computer that plays a control role.

[0036] The above description is only a preferred specific embodiment of the present invention. Common knowledge such as the specific structure and characteristics of the scheme is not described in detail here. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above embodiment, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. Any person skilled in the art who is familiar with the technical field can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention within the technical scope disclosed by the present invention, and they should be covered by the scope of protection of the present invention.

Claims

1. A strong electrostatic protection meter structure, characterized in that: The invention comprises a base (4) and a box body (6), wherein the box body (6) is fixed on the base (4), and a circuit board is installed between the box body (6) and the base (4); the box body (6) comprises a box cover (61), a retaining wall (81) for connecting to a display (8) is provided on the box cover (61), and a button (7) is embedded between the display (8) and the box cover (61).

2. A strong electrostatic protection meter structure according to claim 1, characterized in that: The display (8) is provided with a display window and a hole. The display window is integrally formed and covered by a PC transparent window, and the hole is clamped with the bottom of the button (7).

3. A strong electrostatic protection meter structure according to claim 2, characterized in that: The display window is provided with a plurality of retaining walls (81) on four sides.

4. A strong electrostatic protection meter structure according to claim 3, characterized in that: The box cover (61) is provided with a plurality of mounting holes, and the tops of the buttons (7) are movably arranged in the mounting holes.

5. A strong electrostatic protection meter structure according to claim 4, characterized in that: It also includes a processor (1), and the processor (1) is electrically connected to the circuit board.

6. A strong electrostatic protection meter structure according to claim 5, characterized in that: The processor (1) is provided with contacts, and the processor (1) is installed in contact with the display (8) so that the contacts are aligned with the holes.

7. A strong electrostatic protection meter structure according to claim 6, characterized in that: The circuit board comprises a first circuit board (2) and a second circuit board (3), which are used to realize metering and communication functions.

8. A strong electrostatic protection meter structure according to claim 7, characterized in that: The circuit board is connected to a terminal (5) for connecting to an external power source.

9. A strong electrostatic protection meter structure according to claim 8, characterized in that: The processor (1) has a built-in micro control unit module.

10. A strong electrostatic protection meter structure according to claim 9, characterized in that: The button (7) is made of silica gel.

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