CN-224216768-U - Meter cover structure and electric energy meter

Abstract

The application provides a meter cover structure and an electric energy meter, and relates to the technical field of electric meters. The application provides a watch cover structure which comprises a circuit board, a cover body and a light guide plate. At least two light emitting devices are arranged on the circuit board at intervals. The cover body and the circuit board are arranged in a laminated mode, at least two view holes are formed in the cover body and are opposite to at least two light emitting devices in a one-to-one correspondence mode, a light shielding plate is arranged on one side, facing the circuit board, of the cover body, the light shielding plate is located between two adjacent view holes, the light guide plate is located between the circuit board and the cover body, the position, opposite to the light emitting devices, of the light guide plate is transparent, mounting through holes are formed in the light guide plate, the light shielding plate penetrates through the mounting through holes, and the light shielding plate is used for shielding light emitted by the adjacent light emitting devices. Therefore, when one light-emitting device emits light, the light is emitted through the window hole which is not corresponding to the light-emitting device, so that a user captures wrong light-emitting information, and the possibility of misjudgment on the working condition of the electric energy meter is further reduced.

Inventors

• NAN XU
• PING JUNXIANG
• Xue Keqian

Assignees

• 德力西集团仪器仪表有限公司

Dates

Publication Date

20260508

Application Date

20250523

Claims (10)

1. 1. A bezel structure, the bezel structure comprising: The circuit board is provided with at least two light emitting devices which are distributed at intervals; The cover body is arranged in a lamination manner with the circuit board, at least two view holes are formed in the cover body, the at least two view holes are opposite to the at least two light emitting devices in a one-to-one correspondence manner, a light shielding plate is arranged on one side, facing the circuit board, of the cover body, and the light shielding plate is located between two adjacent view holes; The light guide plate is positioned between the circuit board and the cover body, the position, opposite to the light emitting device, on the light guide plate is transparent, an installation through hole is formed in the light guide plate, the light shielding plate penetrates through the installation through hole, and the light shielding plate is used for shielding light rays emitted by the adjacent light emitting device.
2. 2. The bezel structure as recited in claim 1, wherein said circuit board has an indication area, said light emitting device comprises light emitting diodes, at least two of said light emitting diodes each being connected to said indication area; The light guide plate is provided with a first light guide area, the first light guide area is opposite to the indication area, the installation through hole is formed in the first light guide area, a first sealing rib is arranged on one side, facing the cover body, of the first light guide area, the first sealing rib extends along the periphery of the first light guide area, and the first sealing rib is connected with the cover body in a fusion mode.
3. 3. The structure of claim 2, wherein a second sealing rib is provided on a side of the light guide plate facing the cover body, the second sealing rib extending in a circumferential direction of the mounting through hole, the second sealing rib being melt-connected with the cover body; The first sealing rib, the second sealing rib, the light guide plate and the cover body enclose to form a sealed space.
4. 4. The bezel structure as recited in claim 1, wherein the circuit board has an indication area and a display area, the light emitting device comprises a display screen and a light emitting diode, the display screen is connected to the display area, the light emitting diode is connected to the indication area; The light shielding plate comprises a first sub-plate, wherein the projection of the first sub-plate is located between the projection of the indication area and the projection of the display area in the lamination direction of the circuit board and the cover body, and the first sub-plate is used for shielding light rays emitted by the display area and light rays emitted by the indication area.
5. 5. The structure of claim 4, wherein the number of the light emitting diodes is plural, and the light shielding plate further comprises a second sub-plate connected to the cover body at a position opposite to the indication area; And in the stacking direction of the circuit board and the cover body, the projection of the second sub-board is positioned between two adjacent light emitting diodes, and the second sub-board is used for shielding light rays emitted by the two adjacent light emitting diodes.
6. 6. The bezel structure as recited in claim 4, wherein the bezel structure has a first direction and a second direction intersecting each other, a plane formed by the first direction and the second direction intersecting a lamination direction of the circuit board and the cover, the indication area and the display area being distributed along the first direction; In the second direction, the size of the display area is larger than the size of the first sub-board, the size of the first sub-board is larger than or equal to the size of the indication area, and in the first direction, the projection of the first sub-board covers the projection of the indication area.
7. 7. The structure of claim 1, wherein a light guide pillar is disposed at a side of the light guide plate opposite to the light emitting device, and the light guide pillar is configured to guide light emitted from the light emitting device to the cover body for display through the window hole.
8. 8. The structure of claim 1, wherein a light guide rod is disposed at a side of the light guide plate opposite to the window hole, and a part of the light guide rod is embedded in the window hole.
9. 9. The bezel structure as recited in claim 1, wherein the light guide plate is entirely transparent to light.
10. 10. An electric energy meter, characterized in that it comprises a meter cover structure according to any one of claims 1-9.

Description

Meter cover structure and electric energy meter Technical Field The application relates to the technical field of electric meters, in particular to a meter cover structure and an electric energy meter. Background In order to facilitate the recognition of the working conditions of the electric energy meter, a light emitting device is usually arranged on a meter cover of the electric energy meter to indicate different working conditions and the like. The number of the light emitting devices is generally multiple, and the multiple light emitting devices can emit light independently or cooperatively to indicate various different working conditions of the electric energy meter. However, the arrangement of the plurality of light emitting devices can cause the light rays emitted by different light emitting devices to affect each other, so that misjudgment on the working condition of the electric energy meter is easy to be caused. Disclosure of utility model The application provides a meter cover structure and an electric energy meter, which can reduce the influence among light rays emitted by different light emitting devices and reduce the possibility of misjudgment on the working condition of the electric energy meter. In a first aspect, the present application provides a bezel structure, including a circuit board, a cover, and a light guide plate. Wherein, at least two light emitting devices which are distributed at intervals are arranged on the circuit board. The cover body and the circuit board are arranged in a laminated mode, at least two view holes are formed in the cover body and are opposite to at least two light emitting devices in a one-to-one correspondence mode, a light shielding plate is arranged on one side, facing the circuit board, of the cover body, the light shielding plate is located between two adjacent view holes, the light guide plate is located between the circuit board and the cover body, the position, opposite to the light emitting devices, of the light guide plate is transparent, mounting through holes are formed in the light guide plate, the light shielding plate penetrates through the mounting through holes, and the light shielding plate is used for shielding light emitted by the adjacent light emitting devices. In the embodiment of the application, since the light shielding plate is positioned between two adjacent window holes, when one of the light emitting devices emits light, the light can be directly emitted through the corresponding window hole. And when light rays are emitted to the viewing window hole corresponding to another light emitting device adjacent to the light emitting device, the light shielding plate can shield the light rays. Therefore, when one light-emitting device emits light, the light emitted by the light-emitting device is emitted through the window hole which is not corresponding to the light-emitting device, so that a user captures wrong light-emitting information, and misjudgment is possible to the working condition of the electric energy meter. Optionally, the circuit board has an indication area, and the light emitting device includes light emitting diodes, and at least two light emitting diodes are connected to the indication area. The light guide plate is provided with a first light guide area, and the first light guide area is opposite to the indication area. The installation through-hole sets up in first leaded light district, and one side that first leaded light district towards the lid is provided with first closed muscle, and first closed muscle extends along the week portion in first leaded light district, and first closed muscle is connected with the lid melting. According to the application, the connection mode of the first sealing rib and the cover body in a fusion connection manner can form a continuous physical interface between the first sealing rib and the cover body, so that the first sealing rib and the cover body are connected without gaps. Therefore, the first sealing rib, the light guide plate and the cover body can be enclosed to form a protection cavity. Therefore, the possibility that external impurities enter the first light guide area through the cover body to influence the light transmission effect of the first light guide area can be reduced. Optionally, a second sealing rib is arranged on one side of the light guide plate, facing the cover body, and extends along the circumferential direction of the mounting through hole, and the second sealing rib is in fusion connection with the cover body. The first sealing rib, the second sealing rib, the light guide plate and the cover body enclose to form a sealed space. So, the first seal muscle, the second seal muscle, the light guide plate and the four of lid can cooperate to form airtight space, and is better to external impurity and the protection effect of static like this, reduces impurity and static and gets into the installation through-hole, and then produces the possibility of