CN214175900U

CN214175900U - Instrument and meter

Info

Publication number: CN214175900U
Application number: CN202022845873.6U
Authority: CN
Inventors: 王清华; 王英喆; 徐攀
Original assignee: Bafang Electric Suzhou Co Ltd
Current assignee: Bafang Electric Suzhou Co Ltd
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-09-10
Anticipated expiration: 2030-12-01

Abstract

The utility model discloses an instrument includes casing upper cover, casing lower cover, button subassembly, circuit board, casing upper cover and casing lower cover combination form complete casing, the circuit board sets up inside the casing, wherein, the casing upper cover surface is provided with button subassembly installing zone, set up a notch in the button subassembly installing zone, the notch link up the casing upper cover; the button subassembly includes double faced adhesive tape and connecting piece, the connecting piece passes in proper order double faced adhesive tape, notch with the circuit board is connected, the button subassembly sets up button subassembly installing zone. The utility model discloses reduced the inside risk of intaking of instrument, the waterproof performance that has further improved the instrument has promoted the comfort level that the user used the button simultaneously, has reduced the cost that the instrument was made the equipment.

Description

Instrument and meter

Technical Field

The utility model relates to a vehicle's accessory field, concretely relates to instrument.

Background

Along with the improvement of living standard, the moped gradually walks into the consumer field of vision, and the service environment of moped is mostly outdoor, consequently has provided higher requirement to the waterproof performance of moped instrument. In the prior art, as shown in fig. 1(a), a meter upper case 10 is provided with a meter button area 20, and

buttons

201, 202, 203 are provided in the meter button area 20, the buttons are integrally formed with the case 10, but the button edges 220 are hollowed out, so that the

buttons

201, 202, 203 are pressed downward, and are contacted with the buttons on a circuit board inside the meter, and the meter enters a working state.

As shown in fig. 1(b), in order to prevent liquid such as rainwater from entering the inside of the meter through the edge 220 of the key to damage the circuit board, a layer of waterproof sticker 30 is additionally pasted above the key area 20 of the meter to cover the

keys

201, 202 and 203, but as the number of times of using the keys by a user increases, the waterproof sticker is easily deformed and broken, and after the sticker is broken, the waterproof performance of the meter is greatly reduced; in addition, in the prior art, the meter key is directly in mechanical contact with the key on the circuit board inside the meter, so that the circuit is triggered, and the comfort of a user using the key is low.

SUMMERY OF THE UTILITY MODEL

In order to overcome the aforementioned problem that exists among the prior art, the utility model provides an instrument can improve the waterproof performance of moped instrument to it is convenient that the subassembly equipment improves the comfort level that the user used the button simultaneously.

Based on the above purpose, the technical scheme of the utility model is as follows:

a meter comprises a shell upper cover, a shell lower cover, a key assembly and a circuit board, wherein the shell upper cover and the shell lower cover are combined to form a complete shell, and the circuit board is arranged inside the shell; the button subassembly includes double faced adhesive tape and connecting piece, the connecting piece passes in proper order double faced adhesive tape, notch with the circuit board is connected, the button subassembly sets up button subassembly installing zone.

The button component further comprises a button outer film and a metal dome, wherein the metal dome is arranged between the button outer film and the double-sided adhesive tape, and the metal dome is connected with the connecting piece.

The circuit board comprises a connector clip, and the connector clip is connected with the connector clip.

In order to improve the waterproof performance of the instrument, the double faced adhesive tape is made of waterproof and insulating materials.

Further, the connecting piece is a flexible circuit board.

Further, the meter is mounted on the electric power-assisted bicycle.

The utility model discloses following beneficial effect has:

the utility model discloses an offer a notch in the button subassembly installing zone of casing upper cover, when the installation button subassembly, the connecting piece of button subassembly via the notch is connected with the inside circuit board of casing, and the button subassembly is through the position of the double-faced adhesive tape at the casing upper cover of its back at the button subassembly installing zone of casing upper cover simultaneously, has reduced the inside risk of intaking of instrument, has further improved the waterproof performance of instrument.

Furthermore, the utility model discloses used button is the metal dome piece among the key assembly that adopts, and its button using-way among the prior art has promoted the comfort level that the user used the button and has higher life simultaneously. Additionally, the utility model discloses simple structure, the equipment and the manufacturing of being convenient for, and then reduced the cost of manufacturing the equipment.

The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.

Drawings

Certain embodiments of the invention will hereinafter be described in detail by way of example and not limitation with reference to the accompanying drawings, in which like references indicate similar or analogous elements or parts, and it will be appreciated by those skilled in the art that the drawings are not necessarily drawn to scale. In the drawings:

fig. 1 is a schematic structural diagram of a prior art power-assisted bicycle instrument, wherein fig. 1(a) is a schematic structural diagram of an upper shell of the instrument, and fig. 1(b) is an exploded schematic structural diagram of the instrument;

FIG. 2 is an exploded view of the instrument of the middle power assisted bicycle of the present invention;

fig. 3 is a schematic structural view of the upper cover of the instrument case of the present invention;

fig. 4 is an exploded view of the key assembly of the present invention;

FIG. 5 is an exploded view of the instrument of the middle power assisted bicycle of the present invention;

fig. 6(a) is a schematic structural view of the instrument of the power-assisted bicycle of the present invention; fig. 6(b) is a schematic sectional view along the direction a-a of fig. 6 (a).

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be embodied in many other forms different from those described herein, and it will be apparent to those skilled in the art that similar modifications may be made without departing from the spirit of the invention, and it is therefore intended that the invention not be limited to the specific embodiments disclosed below.

The utility model discloses an instrument, as shown in fig. 2, including casing upper cover 11, casing lower cover 12, button subassembly 13 and circuit board, wherein, casing upper cover 11 forms complete casing with casing lower cover 12 combination, and the circuit board setting is inside the casing.

As shown in fig. 3, a key assembly mounting area 21 is provided on an outer surface of the case upper cover 11, and a notch 31 is provided in the key assembly mounting area 21, wherein the notch 31 penetrates the case upper cover 11.

As shown in fig. 4, the key assembly 13 includes a key outer film 131, a dome sheet 132, a double-sided adhesive tape 133 and a connecting member 134, wherein the dome sheet 132 is disposed between the key outer film 131 and the double-sided adhesive tape 133, and one end of the connecting member 134 penetrates through an opening 135 on the double-sided adhesive tape and is connected with the dome sheet 132.

Wherein, the metal dome of the utility model is from purchasing in the market, and its is used as the switch on the circuit board commonly used, plays the effect of an important sense of touch type switch between user and instrument. The basic working principle is as follows: the snap dome comprises a metal dome and a metal dome supporting body, when the metal dome in the snap dome is pressed, the central point of the dome is concave and contacts with a circuit on the circuit board, so that a loop is formed, current passes through the loop, and the whole product can normally work. In the utility model, one end of the connecting piece is connected with the metal elastic piece of the metal dome.

As shown in fig. 5, in the process of assembling the key assembly 13, the upper case cover 11, the lower case cover 12 and the circuit board into the complete instrument, the connecting piece 134 of the key assembly is first inserted through the upper case cover via the notch 31 of the upper case cover, and the key assembly is attached to the key assembly mounting area of the upper case cover by using the double-sided tape on the back of the key assembly.

As shown in fig. 6(b), the circuit board 14 is provided with a connector 141, and one end of the connector 134 of the key assembly is connected to the dome sheet, and the other end is connected to the connector 141 of the circuit board.

Wherein, the utility model discloses a double faced adhesive tape is the slice, also the great, the less shape of thickness of surface area, and its two sides all has viscidity, and further, the material of double faced adhesive tape is waterproof, insulating, and is exemplary, adopts the double faced adhesive tape of 3M tablet. The 3M brand double-sided adhesive tape (Minnesota Mining and Manufacturing company) refers to a double-sided adhesive tape which is produced by a subsidiary company and a subsidiary company belonging to the Minnesota Mining and Manufacturing company and is covered by the brand name of the subsidiary company and the subsidiary company.

Furthermore, the connecting piece of the key assembly is a flexible circuit board.

Furthermore, the utility model discloses an instrument waterproof performance preferred is particularly useful for requiring higher vehicle to instrument waterproof performance, and is exemplary, can with the utility model discloses an instrument mounting can further improve the life of instrument among the electric power assisted bicycle in combination its service environment on electric power assisted bicycle.

Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been shown and described in detail herein, many other variations and modifications can be made, consistent with the principles of the invention, which are directly determined or derived from the disclosure herein, without departing from the spirit and scope of the invention. Accordingly, the scope of the present invention should be understood and interpreted to cover all such other variations or modifications.

Claims

1. The instrument comprises a shell upper cover, a shell lower cover, a key assembly and a circuit board, wherein the shell upper cover and the shell lower cover are combined to form a complete shell; the button subassembly includes double faced adhesive tape and connecting piece, the connecting piece passes in proper order double faced adhesive tape, notch with the circuit board is connected, the button subassembly sets up button subassembly installing zone.

2. The meter of claim 1, wherein the key assembly further comprises a key outer membrane, a dome disposed between the key outer membrane and the double-sided adhesive, wherein the dome is connected to the connector.

3. The meter of claim 1, wherein said circuit board includes a connector, said connector being connected to said connector.

4. The meter of claim 1, wherein said double-sided adhesive tape is made of a waterproof, insulative material.

5. The meter of claim 1, wherein the connector is a flexible circuit board.

6. The meter of any one of claims 1-5, wherein the meter is mounted on an electrically assisted bicycle.