Intelligent temperature control type photovoltaic alternating current switch

Abstract

The utility model provides an intelligent temperature control type photovoltaic alternating current switch, which relates to the technical field of photovoltaic power supply control and comprises a protection mechanism, a control mechanism and a control mechanism, and the control mechanism comprises a shielding cylinder and a static conducting rod, a conducting block is arranged in the shielding cylinder, an insulating coating is arranged on the top of the conducting block, and a damping spring is fixedly installed on the top of the conducting block. According to the utility model, the control mechanism is arranged and matched with the monitoring value of the temperature sensor, the worm gear is driven to be meshed with the worm by forward rotation or reverse rotation of the micro motor, and the height of the electric shock block installed at the bottom of the dynamic conducting rod is adjusted to be in contact with or away from the electric shock block installed at the top of the static conducting rod, so that intelligent control of a circuit is realized; the use safety is improved, overheating faults are avoided, meanwhile, damage to equipment caused by over-temperature work is reduced, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of photovoltaic power supply control technology, and in particular to an intelligent temperature-controlled photovoltaic AC switch. Background Technology

[0002] Photovoltaic power generation is a technology that directly converts light energy into electrical energy using the photovoltaic effect at semiconductor interfaces. It mainly consists of three parts: solar panels, a controller, and an inverter, with the main components being electronic devices. In a photovoltaic power generation system, a photovoltaic AC switch is installed as a key device for distributing, protecting, and controlling AC power.

[0003] In existing technologies, photovoltaic AC switches typically lack temperature detection of the operating environment. When the output current is too high, the internal temperature of the photovoltaic AC switch will rise. Using it at high temperatures will reduce the safety factor, cause overheating failures, increase the risk of power short circuits, and accelerate the aging of internal components, increasing the cost of equipment maintenance. Utility Model Content

[0004] The purpose of this invention is to address the problem that existing photovoltaic AC switches typically lack temperature detection of the operating environment. When the output current is too high, the internal temperature of the photovoltaic AC switch will rise, which will reduce the safety factor and cause overheating failure when used at high temperatures, increasing the risk of power short circuit. At the same time, high temperatures will accelerate the aging of internal components of the switch and increase the cost of equipment maintenance. Therefore, this invention proposes an intelligent temperature-controlled photovoltaic AC switch.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: It includes a protective mechanism, the protective mechanism having an internal control mechanism; the control mechanism includes a shielding cylinder and a static conductive rod, the shielding cylinder having an internal conductive block, the top of the conductive block having an insulating coating, a damping spring fixedly installed on the top of the conductive block, the top of the damping spring being fixedly connected to the inner wall of the shielding cylinder, a dynamic conductive rod fixedly installed on the bottom of the conductive block, a support block fixedly connected to the outer wall of the conductive block, a push plate at the bottom of the support block, a connecting rod fixedly connected to the top of the push plate, a worm gear fixedly connected to the top of the connecting rod, and a worm wheel meshing with the outer wall of the worm gear.

[0006] Preferably, the protective mechanism includes a control housing, a back plate is snapped onto one side of the control housing, and bolts are inserted into both sides of the back plate, the bolts being threadedly connected to the back plate and the control housing.

[0007] Preferably, the inner walls of the control housing and the back panel are provided with a shielding coating, and a microcontroller and a temperature sensor are fixedly installed on the front of the control housing.

[0008] Preferably, the temperature sensor is signal-connected to the microcontroller, and the detection end of the temperature sensor penetrates through the control housing.

[0009] Preferably, heat dissipation fins are fixedly installed on both sides of the control housing, and mounting blocks are fixedly installed on both sides of the back plate.

[0010] Preferably, the static conductive rod and the dynamic conductive rod are arranged opposite to each other, and a contact block is fixedly installed at one end of each of the static conductive rod and the dynamic conductive rod.

[0011] Preferably, the top of the conductive block and the bottom of the static conductive rod are both connected by connecting wires, and the connecting wire at the top of the conductive block passes through the top of the shielding cylinder.

[0012] Preferably, the control mechanism further includes a bracket, and a rotating shaft is inserted through the inside of the bracket, the rotating shaft being inserted through the inside of the worm gear.

[0013] Preferably, a micro motor is fixedly installed on one side of the bracket, and the output end of the micro motor is fixedly connected to one end of the rotating shaft.

[0014] Preferably, the shielding cylinder and the static conductive rod are respectively installed on the top and bottom inner walls of the control housing, the connecting wire passes through the control housing, and the bracket is fixedly installed on the top of the control housing.

[0015] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0016] 1. In this utility model, by setting up a control mechanism and cooperating with the monitoring value of the temperature sensor, the micro motor rotates forward or reverse to drive the worm gear and worm to mesh, thereby adjusting the height of the contact block installed at the bottom of the dynamic conductive rod, so that it contacts or moves away from the contact block installed at the top of the static conductive rod, thereby realizing intelligent control of the circuit, improving the safety of use, avoiding overheating failure, reducing damage to the equipment caused by overheating, and reducing maintenance costs.

[0017] 2. In this utility model, a microcontroller and a temperature sensor are fixedly installed on the front of the control housing, and a signal connection is established between the two. The temperature controller monitors the ambient temperature inside the control housing in real time. The microcontroller receives and judges the detected values ​​and issues corresponding instructions based on the detected values. The micro motor executes the instructions issued by the microcontroller, thereby realizing intelligent control of the circuit. Attached Figure Description

[0018] Figure 1 A three-dimensional structural diagram of an intelligent temperature-controlled photovoltaic AC switch is provided for this utility model;

[0019] Figure 2A three-dimensional structural cross-sectional view of an intelligent temperature-controlled photovoltaic AC switch is provided for this utility model;

[0020] Figure 3 This utility model provides a three-dimensional structural breakdown diagram of the protective mechanism in an intelligent temperature-controlled photovoltaic AC switch;

[0021] Figure 4 A three-dimensional structural diagram of the control mechanism in an intelligent temperature-controlled photovoltaic AC switch is provided for this utility model.

[0022] Figure 5 This invention provides a schematic diagram of the disassembled structure of the control mechanism in an intelligent temperature-controlled photovoltaic AC switch.

[0023] Legend: 1. Protective mechanism; 101. Control housing; 102. Back plate; 103. Shielding coating; 104. Microcontroller; 105. Temperature sensor; 106. Heat sink fins; 107. Mounting block; 108. Bolt; 2. Control mechanism; 201. Shielding cylinder; 202. Conductive block; 203. Insulating coating; 204. Damping spring; 205. Dynamic conductive rod; 206. Contact block; 207. Static conductive rod; 208. Connecting wire; 209. Support block; 210. Push plate; 211. Connecting rod; 212. Worm gear; 213. Bracket; 214. Rotating shaft; 215. Worm wheel; 216. Micro motor. Detailed Implementation

[0024] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0025] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0026] Example 1: As Figures 1-5As shown, this utility model provides an intelligent temperature-controlled photovoltaic AC switch, including: a protective mechanism 1, and a control mechanism 2 inside the protective mechanism 1; the control mechanism 2 includes a shielding cylinder 201 and a static conductive rod 207, a conductive block 202 inside the shielding cylinder 201, an insulating coating 203 on the top of the conductive block 202, a damping spring 204 fixedly installed on the top of the conductive block 202, the top of the damping spring 204 being fixedly connected to the inner wall of the shielding cylinder 201, a dynamic conductive rod 205 fixedly installed on the bottom of the conductive block 202, a support block 209 fixedly connected to the outer wall of the conductive block 202, a push plate 210 at the bottom of the support block 209, a connecting rod 211 fixedly connected to the top of the push plate 210, a worm gear 212 fixedly connected to the top of the connecting rod 211, and a worm wheel 215 meshing with the outer wall of the worm gear 212.

[0027] The effect achieved by the entire embodiment 1 is that by installing the shielding cylinder 201 and the static conductive rod 207 on the top and bottom inner walls of the control housing 101 respectively, a conductive block 202 and a damping spring 204 are set inside the shielding cylinder 201, the conductive block 202 and the damping spring 204 are fixedly connected, and the damping spring 204 is fixedly connected to the top inner wall of the shielding cylinder 201. An insulating coating 203 is set on the top of the conductive block 202 to prevent the damping spring 204 from being electrocuted. A support block 209 is installed on the outer wall of the conductive block 202, and a push plate 210 is placed at the bottom of the support block 209. A connecting rod 211 is installed on the top of the push plate 210 and fixedly connected to the worm gear 212. Contact blocks 206 are fixedly installed on the bottom of the dynamic conductive rod 205 and the top of the static conductive rod 207 installed at the bottom of the conductive block 202. The conductive block 202 and the static conductive rod 207 are then connected to the connecting line 208 respectively. The connecting line 208 is used to connect to the external circuit to realize the connection control of the circuit. During use, when the temperature sensor 105 detects that the microcontroller 104 determines that the temperature inside the control housing 101 is too high, the microcontroller 104 issues a command to start the micro motor 216, which drives the worm gear 215 to mesh with the worm 212, thereby raising the conductive block 202 and squeezing the damping spring 204. This causes the contact block 206 installed at the bottom of the dynamic conductive rod 205 to separate from the contact block 206 installed at the top of the static conductive rod 207, thus shutting off the power circuit. When the temperature inside the control housing 101 returns to the normal threshold, the micro motor 216 is started to reverse and drive the two contact blocks 206 to contact each other to achieve circuit flow.

[0028] Example 2: Figures 1-5As shown, the protective mechanism 1 includes a control housing 101, a back plate 102 snapped onto one side of the control housing 101, and bolts 108 inserted into both sides of the back plate 102, which are threadedly connected to the back plate 102 and the control housing 101. The inner walls of both the control housing 101 and the back plate 102 are provided with a shielding coating 103. A microcontroller 104 and a temperature sensor 105 are fixedly mounted on the front of the control housing 101. The temperature sensor 105 is signal-connected to the microcontroller 104, and its detection end penetrates through the control housing 101. Heat dissipation fins 106 are fixedly mounted on both sides of the control housing 101, and mounting blocks 107 are fixedly mounted on both sides of the back plate 102. A static conductive rod 207 and a dynamic conductive rod 205 are arranged opposite each other. A contact block 206 is fixedly installed at one end of both the 7 and the dynamic conductive rod 205; a connecting wire 208 is connected to the top of the conductive block 202 and the bottom of the static conductive rod 207, and the connecting wire 208 at the top of the conductive block 202 passes through the top of the shielding cylinder 201; the control mechanism 2 also includes a bracket 213, a rotating shaft 214 is inserted through the inside of the bracket 213, and the rotating shaft 214 is inserted through the inside of the worm gear 215; a micro motor 216 is fixedly installed on one side of the bracket 213, and the output end of the micro motor 216 is fixedly connected to one end of the rotating shaft 214; the shielding cylinder 201 and the static conductive rod 207 are respectively installed on the top and bottom inner walls of the control housing 101, the connecting wire 208 passes through the control housing 101, and the bracket 213 is fixedly installed on the top of the control housing 101.

[0029] The overall effect of Embodiment 2 is as follows: by setting the control mechanism 2 inside the protective mechanism 1, the main part of the control mechanism 2 is protected; by setting the shielding coating 103 on the inner wall of the control housing 101 and the back plate 102, external signal interference is reduced and the stability of power flow is improved; the back plate 102 is then snapped into the control housing 101, and bolts 108 are passed through the back plate 102, using the bolts 108 to thread the back plate 102 and the control housing 101; in the event of a circuit failure, the back plate 102 is separated from the control housing 101 by removing the bolts 108, and the connection circuit inside the control housing 101 is inspected. By fixing a microcontroller 104 and a temperature sensor 105 to the front of the control housing 101, and connecting the microcontroller 104 to the temperature sensor 105, the detection end of the temperature sensor 105 penetrates through the control housing 101. The temperature sensor 105 monitors the ambient temperature inside the control housing 101, and the microcontroller 104 receives and judges the temperature value detected by the temperature sensor 105. When the ambient temperature is too high and exceeds the safety threshold, the control mechanism 2 is triggered to perform over-temperature protection, improving the safety of use, avoiding overheating failures, and reducing damage to the equipment caused by overheating, thus reducing maintenance costs. Heat dissipation fins 106 are installed on both sides of the control housing 101 to increase the contact area between the control housing 101 and the outside, accelerating heat dissipation; mounting blocks 107 are installed on both sides of the back plate 102 to facilitate the installation of the switch. Then, a bracket 213 is fixedly installed on the top of the control housing 101. A rotating shaft 214 is inserted inside the bracket 213. A worm gear 215 is sleeved on the outer wall of the rotating shaft 214. The worm gear 215 is set to mesh with the worm 212. In conjunction with the temperature sensor 105 to detect the temperature value, the micro controller 104 controls the micro motor 216 to rotate forward or backward to adjust the height of the contact block 206 installed at the bottom of the dynamic conductive rod 205, thereby controlling the circuit flow.

[0030] Working principle: In the design of this photovoltaic AC switch, a control mechanism 2 is set inside the protective mechanism 1 to protect the main part of the control mechanism 2. A shielding coating 103 is set on the inner wall of the control housing 101 and the back plate 102 to reduce external signal interference and improve the stability of power flow. The back plate 102 is then snapped into the control housing 101, and a bolt 108 is passed through the back plate 102 to connect the back plate 102 and the control housing 101 by the thread of the bolt 108. In case of circuit failure, the back plate 102 is separated from the control housing 101 by removing the bolt 108, and the connection circuit inside the control housing 101 can be inspected and repaired.

[0031] Secondly, by fixing a microcontroller 104 and a temperature sensor 105 to the front of the control housing 101, and setting the microcontroller 104 and temperature sensor 105 to be signal connected, with the detection end of the temperature sensor 105 penetrating through the control housing 101, the temperature sensor 105 monitors the ambient temperature inside the control housing 101. The microcontroller 104 then receives and judges the temperature value detected by the temperature sensor 105. When the ambient temperature is too high and exceeds the safety threshold, the control mechanism 2 is triggered to perform over-temperature protection, improving the safety of use, avoiding overheating failures, and reducing damage to the equipment caused by overheating, thus reducing maintenance costs. Heat dissipation fins 106 are installed on both sides of the control housing 101 to increase the contact area between the control housing 101 and the outside, accelerating heat dissipation; mounting blocks 107 are installed on both sides of the back plate 102 to facilitate the installation of the switch.

[0032] Then, the shielding cylinder 201 and the static conductive rod 207 are respectively installed on the top and bottom inner walls of the control housing 101. A conductive block 202 and a damping spring 204 are set inside the shielding cylinder 201. The conductive block 202 and the damping spring 204 are fixedly connected. The damping spring 204 is then fixedly connected to the top inner wall of the shielding cylinder 201. An insulating coating 203 is set on the top of the conductive block 202 to prevent the damping spring 204 from being electrocuted. A support block 209 is installed on the outer wall of the conductive block 202, and a push plate 210 is placed at the bottom of the support block 209. A connecting rod 211 is installed on the top of the push plate 210 and fixedly connected to the worm gear 212. Contact blocks 206 are fixedly installed on the bottom of the dynamic conductive rod 205 and the top of the static conductive rod 207 installed at the bottom of the conductive block 202. The conductive block 202 and the static conductive rod 207 are then connected to the connecting line 208 respectively. The connecting line 208 is used to connect to the external circuit to realize the connection control of the circuit.

[0033] Finally, a bracket 213 is fixedly installed on the top of the control housing 101, and a rotating shaft 214 is inserted inside the bracket 213. A worm gear 215 is fitted on the outer wall of the rotating shaft 214, and the worm gear 215 is set to mesh with the worm 212. Then, a micro motor 216 is connected to the rotating shaft 214. When the temperature sensor 105 detects that the microcontroller 104 determines that the temperature inside the control housing 101 is too high, the microcontroller 104 issues a command to start the micro motor 216, which drives the worm gear 215 to mesh with the worm 212, thereby driving the conductive block 202 to rise in height and compress the damping spring 204. This causes the contact block 206 installed at the bottom of the dynamic conductive rod 205 to separate from the contact block 206 installed at the top of the static conductive rod 207, thus turning off the power circuit. When the temperature inside the control housing 101 returns to the normal threshold, the micro motor 216 is started to reverse and drive the two contact blocks 206 to contact each other to realize the circuit flow.

[0034] The wiring diagrams of the microcontroller 104, temperature sensor 105, and micro motor 216 in this utility model are common knowledge in the field, and their working principles are known technologies. The appropriate model is selected according to actual use. Therefore, the control methods and wiring arrangements of the microcontroller 104, temperature sensor 105, and micro motor 216 will not be explained in detail.

[0035] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A smart temperature-controlled photovoltaic AC switch, characterized in that, include: A protective mechanism (1) is provided with a control mechanism (2) inside the protective mechanism (1); The control mechanism (2) includes a shielding cylinder (201) and a static conductive rod (207). A conductive block (202) is provided inside the shielding cylinder (201). An insulating coating (203) is provided on the top of the conductive block (202). A damping spring (204) is fixedly installed on the top of the conductive block (202). The top of the damping spring (204) is fixedly connected to the inner wall of the shielding cylinder (201). A dynamic conductive rod (205) is fixedly installed on the bottom of the conductive block (202). A support block (209) is fixedly connected to the outer wall of the conductive block (202). A push plate (210) is provided at the bottom of the support block (209). A connecting rod (211) is fixedly connected to the top of the push plate (210). A worm gear (212) is fixedly connected to the top of the connecting rod (211). A worm wheel (215) meshes with the outer wall of the worm gear (212).

2. The intelligent temperature-controlled photovoltaic AC switch according to claim 1, characterized in that: The protective mechanism (1) includes a control housing (101), a back plate (102) is snapped onto one side of the control housing (101), and bolts (108) are inserted into both sides of the back plate (102). The bolts (108) are threadedly connected to the back plate (102) and the control housing (101).

3. The intelligent temperature-controlled photovoltaic AC switch according to claim 2, characterized in that: The inner walls of the control housing (101) and the back plate (102) are provided with a shielding coating (103), and a microcontroller (104) and a temperature sensor (105) are fixedly installed on the front of the control housing (101).

4. The intelligent temperature-controlled photovoltaic AC switch according to claim 3, characterized in that: The temperature sensor (105) is connected to the microcontroller (104) via a signal, and the detection end of the temperature sensor (105) penetrates through the control housing (101).

5. The intelligent temperature-controlled photovoltaic AC switch according to claim 2, characterized in that: Heat dissipation fins (106) are fixedly installed on both sides of the control housing (101), and mounting blocks (107) are fixedly installed on both sides of the back plate (102).

6. The intelligent temperature-controlled photovoltaic AC switch according to claim 1, characterized in that: The static conductive rod (207) and the dynamic conductive rod (205) are arranged opposite to each other, and a contact block (206) is fixedly installed at one end of each of the static conductive rod (207) and the dynamic conductive rod (205).

7. The intelligent temperature-controlled photovoltaic AC switch according to claim 2, characterized in that: The top of the conductive block (202) and the bottom of the static conductive rod (207) are both connected to a connecting line (208), and the connecting line (208) at the top of the conductive block (202) passes through the top of the shielding cylinder (201).

8. The intelligent temperature-controlled photovoltaic AC switch according to claim 7, characterized in that: The control mechanism (2) also includes a bracket (213), and a rotating shaft (214) is inserted through the inside of the bracket (213). The rotating shaft (214) is inserted through the inside of the worm gear (215).

9. The intelligent temperature-controlled photovoltaic AC switch according to claim 8, characterized in that: A micro motor (216) is fixedly installed on one side of the bracket (213), and the output end of the micro motor (216) is fixedly connected to one end of the rotating shaft (214).

10. The intelligent temperature-controlled photovoltaic AC switch according to claim 8, characterized in that: The shielding cylinder (201) and the static conductive rod (207) are respectively installed on the top and bottom inner walls of the control housing (101), the connecting line (208) passes through the control housing (101), and the bracket (213) is fixedly installed on the top of the control housing (101).

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