CN217425208U

CN217425208U - Light path switching type fluorescence module and corresponding fluorescence scanner

Info

Publication number: CN217425208U
Application number: CN202123444590.1U
Authority: CN
Inventors: 刘炳宪; 谢菊元; 王焱辉; 王克惠; 曹渊烨
Original assignee: Konfoong Biotech International Co Ltd
Current assignee: Konfoong Biotech International Co Ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-09-13
Anticipated expiration: 2031-12-31

Abstract

The utility model provides a fluorescence scanner that formula fluorescence module and correspondence are switched to light path, including major structure and control system, major structure includes: the rotating disc is positioned in the shell and provided with a plurality of channels provided with light sources, the rotating shaft is connected with the rotating disc, and the fixing mechanism is connected with the rotating shaft; the control system includes: the motor module and the control module are installed on the fixing mechanism, the motor module is fixed with the rotating shaft, the switching module is connected with one end of the rotating shaft and synchronously rotates along with the rotating shaft, and the switching module is provided with a Hall sensor. The light path switching is optimized by adopting a circuit control mode, so that the use fault caused by poor contact which often occurs in the light path switching type fluorescent module is solved, and the stability of the light path switching type module is improved.

Description

Light path switching type fluorescence module and corresponding fluorescence scanner

Technical Field

The utility model relates to a fluorescence scanner's technical field, in particular to light path switches formula fluorescence module and corresponding fluorescence scanner.

Background

With the development of the technology, the fluorescent module is more and more widely applied in the medical industry, and the fluorescent section can be scanned by applying the fluorescent module to a scanner. In addition, the scanner with the multi-channel fluorescence module can select different light sources according to needs and convert fluorescence slices into digital pictures, so that the functions of storing, repeatedly checking for many times and the like are realized.

However, the optical path switching fluorescent module in the prior art is generally a contact-point reed-type fluorescent module that realizes optical path control by elastic contact. The contact point reed-type fluorescent module often has poor contact in use, so that the use is failed.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above-mentioned problem mentioned in the background art, providing an optical path switching formula fluorescence module and corresponding fluorescence scanner.

In order to achieve the above object, the present invention provides an optical path switching type fluorescence module, including a main structure and a control system, the main structure includes: the rotating disc is positioned in the shell and provided with a plurality of channels provided with light sources, the rotating shaft is connected with the rotating disc, and the fixing mechanism is connected with the rotating shaft; the control system includes: the motor module, a control module, the switching module, the motor module, the control module is installed on fixed establishment, the control module is used for receiving control signal and with control signal transmission to the motor module, the motor module is fixed with the pivot, control the rotation angle of carousel according to control signal, the switching module links to each other with pivot one end and rotates along with the pivot is synchronous, be equipped with hall sensor on the switching module, when hall sensor detects its relative speed with the magnet that is fixed in the casing be zero, output signal, for rotatory light source power supply to casing light-emitting port department correspondence.

Optionally, the switching module includes a hall sensor, a first resistor, a second resistor, a PMOS transistor, a capacitor, and a switch, where the first end of the hall sensor is connected to the working power supply end, the second end of the hall sensor is connected to the first end of the first resistor, the third end of the hall sensor is connected to the ground, the first end of the second resistor is connected to the working power supply end, the second end of the second resistor is connected to the second end of the first resistor and the gate of the PMOS transistor, the source of the PMOS transistor is connected to the working power supply end, the drain of the PMOS transistor is connected to the first end of the capacitor and the second end of the switch, the second end of the capacitor is connected to the ground, and the first end of the switch is connected to the ground.

Optionally, the light sources are arranged on the turntable at equal intervals in sequence around the center of the turntable.

Optionally, six channels are arranged on the turntable.

Optionally, eight channels are arranged on the turntable.

Optionally, the light source is provided with different types of filters.

Optionally, the controller further comprises a communication interface, and the communication interface is arranged outside the casing and used for transmitting an external control signal to the control module.

Optionally, the power supply device further comprises a power supply conversion module, wherein the power supply conversion module is used for converting an external power supply signal into an internal power supply signal.

The utility model also provides a fluorescence scanner, including above-mentioned light path switching formula fluorescence module.

The utility model has the advantages that:

the utility model discloses light path switches formula fluorescence module adopts the circuit control mode to optimize the light path and switches, compares prior art, has solved the contact failure that often can appear in the fluorescence module of the contact reed formula that realizes light path control through elastic contact and has leaded to the service failure, has increased the stability of light path switches formula module.

Furthermore, the utility model discloses still provide the switching module that is used for carrying on the light path and switches of a brand-new structure among the formula fluorescence module is switched to light path, through being located the relative rotational speed and the corresponding signal of output between its and the casing upper static magnet of hall sensor real-time detection on the switching module to realize the function that fluorescence module light path switches.

The features and advantages of the present invention will be described in detail by embodiments with reference to the accompanying drawings.

Drawings

Fig. 1 is a system block diagram of a light path switching type fluorescence module according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a light path switching type fluorescent module according to an embodiment of the present invention;

fig. 3 is a schematic diagram of the internal structure of the light path switching type fluorescence module according to the embodiment of the present invention after the housing is removed;

fig. 4 is a schematic diagram of an optical path switching fluorescent module according to an embodiment of the present invention;

fig. 5 is a schematic circuit diagram of a switching module in an optical path switching fluorescent module according to an embodiment of the present invention.

In the figure: 11-shell, 12-rotary table, 13-rotary shaft, 14-fixing mechanism, 21-motor module, 22-control module, 23-switching module, 24-magnet, 30-communication interface and 120-light source.

Detailed Description

The present invention will be described in further detail below with reference to specific embodiments for the purpose of facilitating understanding of those skilled in the art.

Referring to fig. 1, an embodiment of the present invention provides an optical path switching type fluorescence module, including a main body structure and a control system, the main body structure includes: casing 11, carousel 12, pivot 13, fixed establishment 14, control system includes: the device comprises a motor module 21, a control module 22 and a switching module 23.

Referring to fig. 1, which is a schematic structural diagram of an optical path switching type fluorescent module according to this embodiment, a housing 11 encloses other structures and plays a role in protection. In the present embodiment, the housing 11 is assembled by a plurality of rectangular plates, and the assembled housing 11 has an approximately square structure. In other embodiments, other shapes of the housing are also within the scope of the present invention.

In this embodiment, a light outlet is disposed at an edge of a rectangular plate of the casing 11, and the light outlet is configured to project light emitted by the light source 120 located inside the casing 11 to the outside of the casing 11, and the shape of the light outlet may be various shapes including a circle, a square, and a polygon, which is not described herein again.

Please refer to fig. 2, which is a schematic diagram illustrating an internal structure of the optical path switching type fluorescent module with the housing removed according to the present embodiment, wherein the turntable 12 is provided with a plurality of channels, and each channel is used for installing a corresponding light source 120. The rotary disk 12 is connected to the rotary shaft 13, and the rotation of the rotary shaft 13 drives the rotation of the rotary disk 12, so as to drive the rotation of the different light sources 120 fixed on the rotary disk 12. In one embodiment, the channels are arranged on the turntable 12 at equal distances in sequence around the center of the turntable 12, and the light sources 120 are installed in all the channels. In other embodiments, the light source may be installed in other manners, for example, the light source may be installed in a part of the channels, and the distances between the channels where the light source is installed are not equal, which also falls within the protection scope of the present invention.

In one embodiment, the turret 12 is provided with six channels for mounting light sources. In other embodiments, other numbers of channels may be provided on the turntable 12 to switch the light sources in different modes.

Referring to fig. 2, a fixing mechanism 14 is further disposed between the rotating shaft 13 and the rotating disc 12, and the fixing mechanism 14 is connected to the rotating shaft 13. Specifically, the rotating shaft 13 may pass through the inside of the fixing mechanism 14 to be sleeved with the fixing mechanism 14. The shaft 13 is used to connect the motor module 21 and the turntable 12. A motor module 21 and a control module 22 are fixed to the fixing mechanism 14.

The control module is configured to control the motor module 21, the motor module 21 is configured to control rotation of the turntable 12, and the switching module 23 is configured to control switching of different optical paths.

The control module receives a control signal for switching the light source and transmits the control signal to the motor module 21. In one embodiment, the control signal is transmitted to the control module via a communication interface 30 provided outside the housing 11. In other embodiments, other means, such as a button, may be used to send the control signal to the control module. The motor module 21 controls the rotation angle of the turntable 12 according to the control signal, so as to drive the light source on the turntable 12 to rotate by a corresponding angle.

Please refer to fig. 4, which is a schematic diagram illustrating a light path switching of a light path switching fluorescent module according to an embodiment of the present invention. The switching module 23 is connected with one end of the rotating shaft and synchronously rotates along with the rotating shaft, the hall sensor is arranged on the switching module 23, and when the hall sensor detects that the relative rotating speed between the hall sensor and the magnet 24 fixed on the shell is zero, namely the motor module controls the light source on the turntable to rotate for a specified angle, the hall sensor supplies power for the light source rotating to the light outlet of the shell. In an embodiment, the power conversion module is further included, and the power conversion module is configured to convert an external power supply signal into an internal power supply signal.

Specifically, please refer to fig. 5, which is a schematic circuit diagram of a switching module in an optical path switching type fluorescence module according to an embodiment of the present invention.

The switching module comprises a Hall sensor U1, a first resistor R1, a second resistor R2, a PMOS tube Q1, a capacitor C1 and a switch P2, wherein a first end of the Hall sensor U1 is connected with a working power supply end VCC, a second end of the Hall sensor U1 is connected with a first end of the first resistor R1, a third end of the Hall sensor U1 is connected with a ground end, a first end of the second resistor R2 is connected with the working power supply end VCC, a second end of the second resistor R2 is connected with a second end of the first resistor R1 and a grid of the PMOS tube Q1 respectively, a source electrode of the PMOS tube Q1 is connected with the working VCC, a drain electrode of the PMOS tube Q1 is connected with a first end of the capacitor C1 and a second end of the switch P2 respectively, a second end of the capacitor C1 is connected with the ground end, and a first end of the switch P2 is connected with the ground end.

When the motor module drives the rotating disc to rotate, and the light source of a certain channel on the rotating disc does not rotate to the light outlet, namely the relative rotation speed of the hall sensor and the magnet fixed on the shell is not zero, the second end of the hall sensor U1 outputs a high level, the output high level is transmitted to the second end of the second resistor R2 through the first resistor R1, the source of the PMOS transistor Q1 is connected with the working power supply terminal VCC, a voltage signal between the gate of the PMOS transistor Q1 and the source of the PMOS transistor Q1 is higher than the threshold of the turn-on voltage of the PMOS transistor Q1, so the PMOS transistor Q1 is in a turn-off state, and the second end of the switch P2 receives a low level signal, thereby controlling the light source connected with the switch to be in a turn-off state.

Similarly, when the motor module drives the rotating disc to rotate to enable the light source of a certain channel on the rotating disc to rotate to the light outlet, namely the relative rotation speed of the hall sensor and the magnet fixed on the shell is zero, the second end of the hall sensor U1 outputs a low level, the source of the PMOS tube Q1 is connected with the VCC of the working power supply end, a voltage signal between the grid of the PMOS tube Q1 and the source of the PMOS tube Q1 is lower than the threshold of the starting voltage of the PMOS tube Q1, so that the PMOS tube Q1 is in a starting state, and the second end of the switch P2 receives the low level signal, thereby controlling the light source connected with the switch to be in the starting state.

The embodiment of the utility model provides a theory of operation as follows:

the control module receives the control signal and transmits the control signal to the motor module, the motor module controls the rotating shaft to rotate for a certain angle according to the control signal, the rotating shaft drives the rotating disc connected with the rotating shaft and the switching module to synchronously rotate, the Hall sensor on the switching module detects the relative rotating speed between the Hall sensor and the static magnet on the shell in real time, when the hall sensor detects that the relative rotation speed of the hall sensor and the magnet fixed on the shell is not zero, namely, when the light source of a certain channel on the turntable does not rotate to the light outlet in the process of driving the turntable to rotate by the motor module, the power is not supplied to the light source which rotates to the light outlet of the shell, when the Hall sensor detects that the relative rotating speed between the Hall sensor and the magnet fixed on the shell is zero, namely, when the light source of a certain channel on the rotating disc is rotated to the light outlet, the power is supplied to the light source which is rotated to the light outlet of the shell.

To sum up, the utility model discloses a formula fluorescence module is switched to light path adopts the circuit control mode to optimize the light path and switches, compares prior art, has solved the current problem of the bad use trouble that leads to of contact that often can appear in the contact point reed mode light path switching formula fluorescence module that realizes light path control through elastic contact, has increased the stability of formula module is switched to the light path.

The utility model discloses an among the formula fluorescence module is switched to light path still provides the switching module that is used for carrying on the light path and switches of a brand-new structure, through being located the relative rotational speed between its and the casing last static magnet of hall sensor real-time detection on the switching module and export corresponding signal to realize the function that fluorescence module light path switches.

Furthermore, the utility model also provides a fluorescence scanner, including above-mentioned a light path switching formula fluorescence module.

The technical features of the embodiments may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments are not described, but should be considered as the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiment is right the utility model discloses an explanation, it is not right the utility model discloses a limited, any right the scheme after the simple transform of the utility model all belongs to the protection scope of the utility model. The above is only the preferred embodiment of the present invention, the protection scope of the present invention is not limited to the above-mentioned embodiments, all belong to the technical scheme of the present invention under the thought all belong to the protection scope of the present invention. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. An optical path switching fluorescent module, comprising a main body structure and a control system, wherein the main body structure comprises: the rotating disc is positioned in the shell and provided with a plurality of channels provided with light sources, the rotating shaft is connected with the rotating disc, and the fixing mechanism is connected with the rotating shaft; the control system includes: the motor module, a control module, a switching module, the motor module, the control module is installed on fixed establishment, the control module is used for receiving control signal and transmits control signal to the motor module, the motor module is fixed with the pivot, control the rotation angle of carousel according to control signal, the switching module links to each other with pivot one end and rotates along with the pivot is synchronous, be equipped with hall sensor on the switching module, when hall sensor detects that its relative speed with the magnet that is fixed in the casing is zero, output signal, for rotatory light source power supply to the correspondence of casing light-emitting port department.

2. The optical path switching fluorescent module of claim 1, wherein the switching module comprises a hall sensor, a first resistor, a second resistor, a PMOS transistor, a capacitor, and a switch, wherein a first end of the hall sensor is connected to the working power supply terminal, a second end of the hall sensor is connected to the first end of the first resistor, a third end of the hall sensor is connected to ground, a first end of the second resistor is connected to the working power supply terminal, a second end of the second resistor is connected to the second end of the first resistor and a gate of the PMOS transistor, respectively, a source of the PMOS transistor is connected to the working power supply terminal, a drain of the PMOS transistor is connected to the first end of the capacitor and the second end of the switch, respectively, a second end of the capacitor is connected to ground, and a first end of the switch is connected to ground.

3. The optical path switching fluorescent module of claim 1, wherein the light sources are sequentially disposed on the turntable at equal intervals around the center of the turntable.

4. The optical path switching fluorescent module of claim 1, wherein six channels are provided on the turntable.

5. The optical path switching fluorescent module of claim 1, wherein eight channels are provided on the turntable.

6. The optical path switching fluorescent module of claim 1, wherein the light source is provided with different types of filters.

7. The optical path switching fluorescent module of claim 1, further comprising a communication interface disposed outside the housing for transmitting an external control signal to the control module.

8. The optical path switching fluorescent module of claim 1, further comprising a power conversion module for converting an external power signal into an internal power signal.

9. A fluorescence scanner having the optical path switching fluorescence module according to any one of claims 1 to 8.