Ultraviolet disinfection machine

Abstract

An ultraviolet disinfection machine comprises a disinfection chamber, an inlet and an outlet are formed in the disinfection chamber, an upper ultraviolet lamp and a lower ultraviolet lamp are arranged on the top wall and the bottom wall of the disinfection chamber respectively, a conveying device moving from the inlet to the outlet is further arranged in the disinfection chamber, the ultraviolet disinfection machine further comprises a controller, and the controller is electrically connected to the ultraviolet lamps and the conveying device. The controller controls the ultraviolet lamp and the conveying device to be started at intervals, that is, when the file to be disinfected enters the irradiation area of the ultraviolet lamp, the conveying device stops, the ultraviolet lamp is started to disinfect the file, and after the disinfection time reaches the preset time, the ultraviolet lamp is automatically turned off, the conveying device is started, and the disinfected file is output.

Description

Technical Field

[0001] This invention relates to the field of disinfection and sterilization technology, and in particular to an ultraviolet disinfection machine. Background Technology

[0002] In communication among government departments, businesses, schools, and individuals, the requirements for the disinfection of envelopes and documents are becoming increasingly stringent. Traditional disinfection methods, such as chemical disinfection, may leave residues and are relatively cumbersome to operate. Ultraviolet (UV) disinfection, as a highly efficient and residue-free disinfection method, has received widespread attention. However, existing UV disinfection equipment still has room for improvement in terms of the stability of disinfection effectiveness and the scope of application. Summary of the Invention

[0003] The purpose of this invention is to provide an ultraviolet sterilizer, specifically one with stable sterilization effects.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] An ultraviolet (UV) sterilizer includes a sterilization chamber with an inlet and an outlet. The sterilization chamber has an upper UV lamp and a lower UV lamp on its top and bottom walls, respectively. The areas irradiated by the upper and lower UV lamps constitute a sterilization zone. The sterilization chamber also includes a conveying device that moves from the inlet to the outlet. The inlet and outlet are equipped with light-shielding curtains to prevent UV light leakage. The sterilizer also includes a controller electrically connected to the UV lamps and the conveying device, which controls the UV lamps and the conveying device to start intermittently.

[0006] Furthermore, a first sensor and a second sensor are respectively provided in the disinfection chamber along the conveying direction of the conveying device. The first sensor is located at the end of the disinfection area near the inlet, and the second sensor is located at the end of the disinfection area near the outlet. The first sensor and the second sensor are electrically connected to the controller.

[0007] Furthermore, it includes an upper disinfection section and a lower disinfection section. The upper disinfection section includes an upper shell, and an upper partition is provided inside the upper shell. The upper partition divides the space of the upper shell into an upper heat dissipation space and an upper disinfection space. The lower disinfection section includes a lower shell, and a lower partition is provided inside the lower shell. The lower partition divides the space of the lower shell into a lower heat dissipation space and a lower disinfection space. The space enclosed by the upper disinfection space and the lower disinfection space constitutes a disinfection chamber.

[0008] Furthermore, the upper partition is provided with an upper ultraviolet lamp on one side of the upper disinfection space, and an upper heat sink on one side of the upper heat dissipation space; the lower partition is provided with a lower ultraviolet lamp on one side of the lower disinfection space, and a lower heat sink on one side of the lower heat dissipation space.

[0009] Furthermore, the upper housing and the lower housing are respectively provided with heat dissipation outlets that communicate with the upper heat dissipation space and the lower heat dissipation space.

[0010] Furthermore, the lower partition has upward-facing flanges at the inlet and outlet positions.

[0011] Furthermore, the conveying device is located on the lower housing, and the conveying device includes rotating rollers respectively located at the inlet and outlet, and also includes a transmission belt with both ends sleeved on the two rotating rollers, the transmission belt rotating as the rotating rollers rotate.

[0012] Furthermore, the lower housing is also provided with a support device, which includes a first support member passing through the two flanges along the conveying direction of the conveying device and a second support member provided at the inlet and outlet, wherein the first support member is located below the transmission belt and the second support member abuts against the bottom of the first support member.

[0013] Furthermore, the blackout curtain is a lead curtain.

[0014] Furthermore, the inlet is provided with an input port that gradually decreases in size along the conveying direction of the conveying device.

[0015] The beneficial effects of this invention are:

[0016] 1. The present invention proposes an ultraviolet disinfection machine, comprising a disinfection chamber having an inlet and an outlet, an upper ultraviolet lamp and a lower ultraviolet lamp respectively installed on the top and bottom walls of the disinfection chamber, and a conveying device moving from the inlet to the outlet within the disinfection chamber, and further comprising a controller electrically connected to the ultraviolet lamp and the conveying device, the controller controlling the ultraviolet lamp and the conveying device to start intermittently, that is, when the document to be disinfected enters the irradiation area of ​​the ultraviolet lamp, the conveying device stops, the ultraviolet lamp turns on to disinfect the document, and after the disinfection time reaches the preset time, the ultraviolet lamp is automatically turned off and the conveying device is turned on to output the disinfected document.

[0017] 2. The ultraviolet sterilizer proposed in this invention includes an upper shell and a lower shell. The upper shell and the lower shell are respectively provided with a sterilization space and a heat dissipation space through a partition. The heat dissipation fins in the heat dissipation space can effectively reduce the heat emitted by the ultraviolet lamp when it is working, extend the working time, and improve the sterilization effect.

[0018] 3. The ultraviolet sterilizer proposed in this invention has an upward-curved edge on the lower partition at the inlet and outlet, which works in conjunction with the light-blocking curtains at the inlet and outlet to prevent ultraviolet light leakage.

[0019] 4. The ultraviolet sterilizer proposed in this invention has a support device including a first support member and a second support member. During the document conveying process, the first support member provides support force for the conveyor belt to avoid the large weight of the document causing the conveyor belt to deform downward and abut against the lower ultraviolet lamp.

[0020] 5. The ultraviolet sterilizer proposed in this invention has an input port at the inlet that gradually decreases in size along the conveying direction of the conveying device, which facilitates the insertion of documents. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of an ultraviolet disinfection machine according to the present invention;

[0023] Figure 2 This is an exploded view of an ultraviolet sterilizer according to the present invention;

[0024] Figure 3 This is a schematic diagram of the upper disinfection section of an ultraviolet disinfection machine according to the present invention;

[0025] Figure 4 This is a cross-sectional view of the upper disinfection section of an ultraviolet disinfection machine according to the present invention;

[0026] Figure 5 This is a schematic diagram of the lower disinfection section of an ultraviolet disinfection machine according to the present invention;

[0027] Figure 6 This is a cross-sectional view of the lower disinfection section of an ultraviolet disinfection machine according to the present invention;

[0028] In the diagram, 10 is the upper disinfection section; 101 is the upper partition; 102 is the upper heat dissipation space; 103 is the upper disinfection space; 104 is the upper ultraviolet lamp; 105 is the upper heat sink; 106 is the upper housing; 20 is the lower disinfection section; 201 is the lower partition; 202 is the lower heat dissipation space; 203 is the lower disinfection space; 204 is the lower ultraviolet lamp; 205 is the lower heat sink; 206 is the lower housing; 30 is the input port; 401 is the rotating roller; 402 is the mounting groove; 403 is the transmission belt; 501 is the first support member; 502 is the second support member; and 60 is the power module. Detailed Implementation

[0029] The following is combined with Figure 1-6 The present invention will be described in detail below.

[0030] An ultraviolet (UV) sterilizer includes a sterilization chamber with an inlet and an outlet. The chamber has an upper UV lamp 104 and a lower UV lamp 204 installed on its top and bottom walls, respectively. The areas irradiated by the upper and lower UV lamps constitute the sterilization zone. The sterilization chamber also includes a conveyor that moves from the inlet to the outlet. The inlet and outlet are equipped with light-shielding curtains to prevent UV light leakage. The sterilizer also includes a controller electrically connected to the UV lamps and the conveyor. The controller controls the UV lamps and the conveyor to start intermittently. Specifically, when a document to be sterilized enters the UV lamp irradiation zone, the conveyor stops, and the UV lamp turns on to sterilize the document. After a preset sterilization time, the UV lamp automatically turns off and the conveyor turns on to output the sterilized document, thus maintaining a stable sterilization effect.

[0031] In this embodiment, a first sensor and a second sensor are respectively installed in the disinfection chamber along the conveying direction of the conveying device. The first sensor is located at the end of the disinfection area near the inlet, and the second sensor is located at the end of the disinfection area near the outlet. The first and second sensors are electrically connected to the controller. During use, when a document is conveyed into the disinfection chamber, the first sensor is triggered first, and the controller receives the signal from the first sensor. The document continues to be conveyed forward until it leaves the sensing area of ​​the first sensor. The first sensor then sends a signal to the controller again. If the document does not trigger the second sensor at this point, meaning the document length is less than the irradiation area of ​​the ultraviolet lamp and the document is completely within the irradiation area of ​​the ultraviolet lamp, the controller shuts down the conveying device and turns on the upper ultraviolet lamp 104 and the lower ultraviolet lamp 204 to begin the disinfection operation. After the preset disinfection time is reached, the controller shuts down the upper ultraviolet lamp 104 and the lower ultraviolet lamp 204 and turns on the conveying device to output the disinfected document. Conversely, if the second sensor is triggered and sends a signal to the controller before the first sensor sends a signal to the controller again, meaning the document length is too long and the disinfection area is insufficient to disinfect the entire document, the controller issues an alarm.

[0032] In this embodiment, the controller type includes, but is not limited to, a PLC controller, a PAC controller, or other types of controllers; it also includes a buzzer, which is electrically connected to the controller and is used to issue an alarm sound to indicate that the current file length is too long; it also includes a power module 60, which is electrically connected to the controller, the conveying device, the first sensor, and the second sensor.

[0033] In this embodiment, the device includes an upper disinfection section 10 and a lower disinfection section 20. The upper disinfection section 10 includes an upper housing 106, which is provided with an upper partition 101. The upper partition 101 divides the space of the upper housing 106 into an upper heat dissipation space 102 and an upper disinfection space 103. The lower disinfection section 20 includes a lower housing 206, which is provided with a lower partition 201. The lower partition 201 divides the space of the lower housing 206 into a lower heat dissipation space 202 and a lower disinfection space 203. The space enclosed by the upper disinfection space 103 and the lower disinfection space 203 constitutes a disinfection chamber. Furthermore, an upper ultraviolet lamp 104 is provided on one side of the upper partition 101 located in the upper disinfection space 103, and an upper heat sink 105 is provided on one side of the upper partition 101 located in the upper heat dissipation space 102. A lower ultraviolet lamp 204 is provided on one side of the lower partition 201 located in the lower disinfection space 203, and a lower heat sink 205 is provided on one side of the lower heat dissipation space 202 located in the lower partition 201. The upper housing 106 and the lower housing 206 are respectively provided with heat dissipation outlets connected to the upper heat dissipation space 102 and the lower heat dissipation space 202, which can effectively reduce the heat emitted by the ultraviolet lamp when it is working, extend the working time, and improve the disinfection and sterilization effect.

[0034] In this embodiment, the upper partition 101 and the lower partition 201 are made of galvanized sheet. The galvanized layer on their surface can extend the service life of the partition and slow down the rate of corrosion and rust caused by long-term exposure to ultraviolet radiation.

[0035] In this embodiment, the inlet and outlet are flat, which not only accommodates common document loading and unloading but also reduces ultraviolet light leakage. The lower partition 201 has upward-curving edges at the inlet and outlet, which work in conjunction with the light-shielding curtains at the inlet and outlet to prevent ultraviolet light leakage. Furthermore, the light-shielding curtains are lead curtains, and the number of layers is at least two. The inlet has an input port 30 that gradually decreases in size along the conveying direction of the conveying device, facilitating the insertion of documents.

[0036] In this embodiment, a conveying device is located in the lower housing 206. The conveying device includes rotating rollers 401 respectively located at the inlet and outlet, and a transmission belt 403 with both ends sleeved on the two rotating rollers 401. The transmission belt 403 rotates with the rotating rollers 401. Specifically, the two ends of the transmission rollers are provided with mounting grooves 402 for embedding the transmission belts 403. There are two transmission belts 403. One transmission belt 403 has both ends sleeved on the mounting grooves 402 on one side of the two rotating rollers 401, and the other transmission belt 403 has both ends sleeved on the mounting grooves 402 on the other side of the two rotating rollers 401. Documents are placed on the two transmission belts 403 and enter the disinfection area with the transmission belts 403. During use, because the transmission belts 403 block part of the document surface, the lower ultraviolet lamp 204 cannot irradiate the lower surface of the document. Therefore, if necessary, the document can be flipped over and disinfected again.

[0037] In this embodiment, the lower housing 206 is also provided with a support device, which includes a first support member 501 passing through the two flanges along the conveying direction of the conveying device and a second support member 502 provided at the inlet and outlet. The first support member 501 is located below the transmission belt 403, and the second support member 502 abuts against the lower part of the first support member 501 to prevent the transmission belt 403 from deforming downwards and abutting against the lower ultraviolet lamp 204 due to the large weight of the document.

[0038] In this embodiment, the above embodiments are only for illustrating the technical concept and features of the present invention, and are intended to enable those skilled in the art to understand the content of the present invention and implement it, and should not be used to limit the scope of protection of the present invention. All equivalent changes or modifications made in accordance with the spirit and essence of the present invention should be covered within the scope of protection of the present invention.

Claims

1. An ultraviolet sterilizer, characterized in that, The device includes a disinfection chamber with an inlet and an outlet. At least the top and bottom walls of the disinfection chamber are equipped with an upper ultraviolet lamp and a lower ultraviolet lamp, respectively. The areas irradiated by the upper and lower ultraviolet lamps constitute a disinfection zone. The disinfection chamber also includes a conveying device that moves from the inlet to the outlet. The inlet and outlet are equipped with light-shielding curtains to prevent ultraviolet light leakage. The device also includes a controller electrically connected to the ultraviolet lamps and the conveying device, which controls the intermittent activation of the ultraviolet lamps and the conveying device.

2. The ultraviolet sterilizer as described in claim 1, characterized in that, The disinfection chamber is equipped with a first sensor and a second sensor respectively along the conveying direction of the conveying device. The first sensor is located at the end of the disinfection area near the inlet, and the second sensor is located at the end of the disinfection area near the outlet. The first sensor and the second sensor are electrically connected to the controller.

3. The ultraviolet sterilizer as described in claim 2, characterized in that, It includes an upper disinfection section and a lower disinfection section. The upper disinfection section includes an upper shell with an upper partition inside, which divides the upper shell space into an upper heat dissipation space and an upper disinfection space. The lower disinfection section includes a lower shell with a lower partition, which divides the lower shell space into a lower heat dissipation space and a lower disinfection space. The space enclosed by the upper and lower disinfection spaces forms a disinfection chamber.

4. The ultraviolet sterilizer as described in claim 3, characterized in that, The upper partition is equipped with an upper ultraviolet lamp on one side of the upper disinfection space, and an upper heat sink on one side of the upper heat dissipation space. The lower partition is equipped with a lower ultraviolet lamp on one side of the lower disinfection space, and a lower heat sink on one side of the lower heat dissipation space.

5. The ultraviolet sterilizer as described in claim 4, characterized in that, The upper and lower housings are respectively provided with heat dissipation outlets that connect to the upper and lower heat dissipation spaces.

6. The ultraviolet sterilizer as described in claim 4, characterized in that, The lower partition is provided with an upward-facing flange at the inlet and outlet positions.

7. The ultraviolet sterilizer as described in claim 6, characterized in that, The conveying device is located on the lower housing. The conveying device includes rotating rollers respectively located at the inlet and outlet, and a transmission belt with both ends sleeved on the two rotating rollers. The transmission belt rotates with the rotating rollers.

8. The ultraviolet sterilizer as described in claim 7, characterized in that, The lower housing is also provided with a support device, which includes a first support member passing through the two flanges along the conveying direction of the conveying device and a second support member located at the inlet and outlet. The first support member is located below the transmission belt, and the second support member abuts against the bottom of the first support member.

9. The ultraviolet sterilizer as described in claim 1, characterized in that, The blackout curtain is a lead curtain.

10. The ultraviolet sterilizer as described in claim 1, characterized in that, The inlet is provided with an input port that gradually decreases in size along the conveying direction of the conveying device.

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