CN219038178U

CN219038178U - Illuminance measuring device

Info

Publication number: CN219038178U
Application number: CN202222619097.7U
Authority: CN
Inventors: 区志杨
Original assignee: Guangdong Cnl Optoelectronics Technology Co ltd; FOSHAN HUAQUAN ELECTRICAL LIGHTING CO LTD
Current assignee: Guangdong Cnl Optoelectronics Technology Co ltd; FOSHAN HUAQUAN ELECTRICAL LIGHTING CO LTD
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-05-16
Anticipated expiration: 2032-09-30

Abstract

The utility model discloses an illuminance measuring device, which comprises a machine body and a surface cover covered on the machine body, wherein a measuring port is arranged on the surface cover, a circuit board, a light sensing module and a light beam barrel are arranged in the machine body, the light sensing module is arranged on the circuit board, and the light beam barrel is covered on the light sensing module; the light sensing module is used for measuring illuminance on the measured surface; a reflective cup which is coaxially communicated with the light sensing module and the measuring port is arranged in the light beam barrel; the cup opening of the reflecting cup is close to the measuring opening, and the reflecting cup is used for restraining the beam size of the reflected light of the measured surface received by the reflecting cup and reflecting the reflected light to the light sensing module. The utility model can remotely measure the illuminance of the measured surface, can eliminate the interference of stray light around, and improves the measurement accuracy, thereby being beneficial to realizing the constant illuminance control and management of the lamplight.

Description

Illuminance measuring device

Technical Field

The utility model relates to the technical field of illuminance measurement, in particular to an illuminance measurement device.

Background

The illuminance measurement is a measurement of the luminous flux obtained per unit area of the surface of the object irradiated with light.

The conventional illuminance measuring device is placed on the surface to be measured, but the illuminance measuring device is directly placed on the surface to be measured, so that the work or life of a user is easily hindered or affected (for example, when the illuminance measuring device is directly placed on an office desk or a study desk to perform surface measurement). However, the current illuminance measuring device is placed on a non-measured surface, and basically can be placed above the measured surface which does not affect the activities of people for measurement, but when the illuminance measuring device is placed in such a way, the illuminance measuring device is easily affected by illumination of surrounding light (or natural light), so that the test result is greatly different from the actual result on the measured surface, the accuracy is lower, and the constant illuminance control management of the lamplight cannot be realized at all.

Disclosure of Invention

The technical problem to be solved by the utility model is to provide the illuminance measuring device which can remotely measure the illuminance of the measured surface, eliminate the interference of stray light around and improve the measurement accuracy, thereby being beneficial to realizing the constant illuminance control management of the lamplight.

In order to solve the technical problems, the utility model provides an illuminance measuring device which comprises a machine body and a surface cover covered on the machine body, wherein a measuring port is arranged on the surface cover, a circuit board, a light sensing module and a light beam barrel are arranged in the machine body, the light sensing module is arranged on the circuit board, and the light beam barrel is covered on the light sensing module; the light sensing module is used for measuring illuminance on the measured surface; a reflective cup which is coaxially communicated with the light sensing module and the measuring port is arranged in the light beam barrel; the cup opening of the reflecting cup is close to the measuring opening, and the reflecting cup is used for restraining the beam size of the reflected light of the measured surface received by the reflecting cup and reflecting the reflected light to the light sensing module.

As an improvement of the scheme, the inner side surface of the surface cover is provided with the optical filter, the diameter of the optical filter is larger than that of the measuring port, and the optical filter is positioned on the measuring port.

As an improvement of the scheme, a gasket is further arranged in the machine body, the gasket is arranged on the circuit board and sleeved on the light sensing module, and the gasket is abutted with the light beam tube.

As an improvement of the scheme, the light sensing module is partially embedded in the cup handle of the reflecting cup.

As an improvement of the scheme, a double-sided rubber ring is arranged between the optical filter and the surface cover, and the optical filter is adhered to the inner side surface of the surface cover through the double-sided rubber ring.

As an improvement of the scheme, a main control module is arranged on the circuit board and is connected with the light sensing module.

As an improvement of the above scheme, the filter is a gray filter.

As an improvement of the scheme, the diameter of the measuring opening is larger than that of the cup opening of the reflecting cup.

As an improvement of the scheme, the reflective cup is made of metal or plastic.

As an improvement of the scheme, the cross section of the reflecting cup is round.

The implementation of the utility model has the following beneficial effects;

the illuminance measuring device can measure illuminance of a measured surface in a long distance, can play a role of beam light through the reflection cup in the beam light cylinder, and enables the restrained reflected light to be reflected to the light sensing module, so that interference of ambient stray light is effectively eliminated, the measuring precision is prevented from being influenced by the ambient stray light, the accuracy of measured data is high, and the constant illuminance control management of the lamplight is facilitated. In addition, different beam light effects can be realized by replacing the reflecting cups with different constraint light angles so as to measure the illuminance of the measured surface with different distances, thereby meeting the measurement requirements of users with different distances and having high practicability.

Drawings

Fig. 1 is an exploded view of an illuminance measuring device of the present utility model;

FIG. 2 is a schematic view of a partial cross-sectional structure of an illuminance measuring device of the present utility model;

fig. 3 is an enlarged schematic view of the portion a in fig. 2.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present utility model more apparent.

As shown in fig. 1-3, a specific embodiment of the present utility model provides an illuminance measurement apparatus, which includes a machine body 1 with a mounting position far away from a measured surface and a surface cover 2 covered on the machine body 1, wherein a measurement port 3 is provided on the surface cover 2, a circuit board 4, a light sensing module 5 and a light beam tube 6 are provided in the machine body 1, the light sensing module 5 is provided on the circuit board 4, and the light beam tube 6 is covered on the light sensing module 5; the light sensing module 5 is used for measuring illuminance on the measured surface; a reflective cup 7 which is coaxially communicated with the light sensing module 5 and the measuring port 3 respectively is arranged in the beam light cylinder 6; the cup opening of the reflecting cup 7 is close to the measuring opening 3, and the reflecting cup 7 is used for restraining the beam size of the reflected light of the measured surface received by the reflecting cup and reflecting the reflected light to the light sensing module 5. Wherein the cross section of the reflector cup 7 is circular.

The illuminance measuring device can remotely measure the illuminance of the measured surface, so that the space of the measured surface is not occupied, the work or life of a user is not hindered or influenced, and the use experience of the user is improved; and the reflection cup 7 in the beam barrel 6 can play a beam role, so that the reflected light after constraint (namely in a constraint range) is reflected to the light sensing module 5, the interference of stray light around is effectively eliminated, the measuring precision is prevented from being influenced by the stray light around, the accuracy of the measured data is high, and the constant illuminance control management of the lamplight is facilitated. In addition, different beam light effects can be realized by replacing the reflecting cups 7 with different constraint light angles so as to measure the illuminance of the measured surface with different distances, thereby meeting the measurement requirements of different distances of users and having high practicability.

To improve the illuminance measurement range of an illuminance measurement device. As shown in fig. 1 and 3, the inner side surface of the surface cover 2 is provided with a light filter 8, the diameter of the light filter 8 is larger than that of the measuring port 3, and the light filter 8 is positioned on the measuring port 3. Reflected light of the measured surface is sequentially emitted to the light sensing module 5 through the measuring port 3, the optical filter 8 and the reflecting cup 7. The optical filter 8 can reduce the illuminance measurement value of the light sensing module 5, but the illuminance value of the measured surface corresponding to the illuminance measurement value is increased compared with the original illuminance measurement value, namely, the light sensing module 5 provided with the optical filter 8 enlarges the illuminance measurement range of the measured surface compared with the original light sensing module 5 in the same illuminance range value of the light sensing module 5, so that the actual illuminance measurement range of the light sensing module 5 can be increased through the optical filter 8, the illuminance measurement range of the illuminance measurement device is further increased, the illuminance measurement range is wide, and the constant illuminance control of the lamplight with wider illuminance environment change is met.

The filter 8 in the present embodiment is a gray filter, preferably a 60% gray filter, but is not limited thereto, and may be adjusted accordingly according to practical situations.

Specifically, as shown in fig. 1 and 3, a gasket 9 is further disposed in the machine body 1, the gasket 9 is disposed on the circuit board 4 and sleeved on the light sensing module 5, the gasket 9 is abutted against the beam light tube 6, and a portion (i.e. the lighting module) of the light sensing module 5 is embedded in the cup handle of the light reflecting cup 7, so that collected light can be transmitted to the light sensing module 5, and measurement accuracy is improved. The gasket 9 plays a role in reducing pressure and buffering, and the light beam tube 6 or the luminous cup is prevented from extruding the light sensation module 5, so that the light sensation module 5 is prevented from being damaged, and the use stability of the device is improved.

Preferably, as shown in fig. 1 and 3, a double-sided rubber ring 10 is arranged between the optical filter 8 and the surface cover 2, and the optical filter 8 is adhered to the inner side surface of the surface cover 2 through the double-sided rubber ring 10, so that the optical filter 8 can isolate dust and prevent the dust from entering the device to influence the measurement accuracy of the light sensing module 5. The adhesive force of the double-sided adhesive ring 10 improves the connection firmness or stability between the optical filter 8 and the surface cover 2, and avoids the optical filter 8 from easily shaking and even separating from the measuring port 3 caused by shaking of the machine body 1, thereby avoiding influencing the measuring effect and the measuring precision of the illuminance measuring device. The double-sided tape 10 is preferably VHB double-sided tape, but is not limited thereto, and other types of adhesive modules may be selected according to practical situations.

Preferably, as shown in fig. 1, a main control module 11 is arranged on the circuit board 4, the main control module 11 is connected with the light sensing module 5, and the main control module 11 comprises an MCU processor. The main control module 11 is used for carrying out data correction on illuminance measurement data detected by the light sensing module 5 and sending the illuminance measurement data to an external controller, or the main control module 11 is used for sending illuminance measurement data detected by the light sensing module 5 to the external controller so as to realize data correction and constant illuminance control management of the light.

Preferably, as shown in fig. 3, the diameter of the measuring port 3 is larger than the diameter of the cup mouth of the reflector cup 7 so as to satisfy the beam effect of the reflector cup 7. In this embodiment, the range of the angle of the vertical section of the body of the reflector cup 7 is preferably 19-20 degrees, but is not limited thereto, and in other embodiments, the range of the angle of the vertical section of the body of the reflector cup 7 may be adjusted according to actual requirements, so as to obtain a corresponding beam size range.

Preferably, the reflective cup is made of metal or plastic, but is not limited to the metal or plastic.

Preferably, the gasket 9 is made of rubber or plastic, but is not limited thereto. In this embodiment, the gasket 9 is preferably an EVA gasket.

The foregoing disclosure is merely illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the claims herein, as equivalent changes may be made in the claims herein without departing from the scope of the utility model.

Claims

1. The illuminance measuring device is characterized by comprising a machine body and a surface cover covered on the machine body, wherein a measuring port is formed in the surface cover, a circuit board, a light sensing module and a light beam barrel are arranged in the machine body, the light sensing module is arranged on the circuit board, and the light beam barrel is covered on the light sensing module;

the light sensing module is used for measuring illuminance on the measured surface;

a reflecting cup which is coaxially communicated with the light sensing module and the measuring port respectively is arranged in the light beam barrel;

the cup opening of the reflecting cup is close to the measuring opening, and the reflecting cup is used for restraining the beam size of the reflected light of the measured surface received by the reflecting cup and reflecting the reflected light to the light sensing module.

2. An illuminance measurement device according to claim 1, wherein the inner side of the cover is provided with a filter having a diameter larger than the diameter of the measurement port, the filter being located on the measurement port.

3. A light intensity measuring device as recited in claim 1, wherein a gasket is further disposed in the housing, wherein the gasket is disposed on the circuit board and is sleeved on the light sensing module, and wherein the gasket is abutted against the light beam tube.

4. A light measuring device as recited in claim 1 or claim 3, wherein the light sensing module is partially embedded in a stem of the reflector cup.

5. An illuminance measurement device according to claim 2, wherein a double sided tape is provided between the optical filter and the cover, and the optical filter is adhered to the inner surface of the cover by the double sided tape.

6. The illuminance measurement device of claim 1 wherein the circuit board is provided with a main control module, and the main control module is connected to the light sensing module.

7. An illuminance measurement device according to claim 2, wherein the filter is a grey filter.

8. A light measurement device as recited in claim 1, wherein a diameter of the measurement port is greater than a cup opening diameter of the reflector cup.

9. A light measuring device as recited in claim 1, wherein the reflector cup is made of metal or plastic.

10. A light measurement device as recited in claim 1, wherein the reflector cup is circular in cross-section.