PWM (Pulse Width Modulation) solar controller with waterproof structure
By setting a second guard and sealing block at the interface of the PWM solar controller, the problem of rainwater seepage is solved, the waterproof protection of the equipment is achieved, the service life is extended and the maintenance cost is reduced.
Patent Information
- Application Number
- CN202421444804.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-06-24
AI Technical Summary
On rainy days, the PWM solar controller seeps in rainwater due to the gap between the wires and the interface, causing equipment damage, shortening its service life and increasing maintenance costs.
A PWM solar controller with a waterproof structure is designed. By providing a second protective member at the interface, the sealing block is closely fitted when the interface is connected to the wire to prevent water from infiltration, and protecting the entire equipment with the first protective member.
Effectively prevent water seepage, protect the solar controller from damage, extend the service life and reduce maintenance costs.
Smart Images
Figure CN223040341U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of solar controllers, and more specifically, to a PWM solar controller with a waterproof structure. Background Art
[0002] A PWM solar controller is a device used to control the charging of solar panels and the discharging of batteries. PWM stands for Pulse Width Modulation. It controls the charging process by adjusting the pulse width of the voltage and current output by the solar panels. The PWM solar controller can ensure that the solar panels charge the battery with the best efficiency, while protecting the battery from overcharging or over-discharging damage.
[0003] When the PWM solar controller is in use, it needs to be docked with multiple wires. In rainy weather, rainwater will seep into the interior through the gaps between the wires and the interfaces of the solar controller, resulting in damage to the solar controller, shortening its service life, and increasing the maintenance cost.
[0004] Therefore, we have made improvements in this regard and proposed a PWM solar controller with a waterproof structure. Summary of the Utility Model
[0005] The purpose of the utility model is to solve the problem that rainwater seeps into the interior through the gaps between the wires and the interfaces of the solar controller, resulting in damage to the solar controller, shortening its service life, and increasing the maintenance cost.
[0006] In order to achieve the above-mentioned invention purpose, the utility model provides the following technical solutions:
[0007] A PWM solar controller with a waterproof structure to improve the above problems.
[0008] Specifically, this application is as follows:
[0009] It includes a solar controller body. Four first threaded holes are opened on both sides of the solar controller body. A display screen and buttons are installed on the front side of the solar controller body. An interface one is opened below the buttons on the front side of the solar controller body. An interface two is opened on the lower surface of the solar controller body. Six interface ones and six interface twos are respectively arranged in a linear array. A protective box is sleeved on the outer surface of the solar controller body. A first protective member for protecting the solar controller body is fixedly connected to the front side of the protective box. An activity slot one is opened on the front side of the interface one inside the protective box. A second protective member for protecting the interface one is slidably connected to the inner surface of the activity slot one.
[0010] Through the action of the second protective member, when the sealing block is docked with the external wire at the first interface, the sealing block is closely attached to the external wire. When the first interface is not docked with the external wire, the sealing block is closely attached to the inner top surface of the first movable groove, thereby realizing the protection of the first interface. In cooperation with the action of the first protective member, the protection of the solar controller body is realized, preventing water from seeping into the inside of the solar controller body and damaging the solar controller body, increasing the service life of the solar controller body, and reducing the maintenance cost.
[0011] As a preferred embodiment of the PWM solar controller with a waterproof structure provided by the present invention, the first protective member includes a transparent glass and a rubber button. The transparent glass and the rubber button are fixedly connected to the front side of the protective box. The transparent glass and the rubber button correspond to the positions of the display screen and the button respectively. On both sides of the inner surface of the protective box, inclined plates are fixedly connected, and a plurality of inclined plates are arranged in an array.
[0012] As a preferred embodiment of the PWM solar controller with a waterproof structure provided by the present invention, notch openings corresponding to the display screen, the button, the first interface, and the second interface are respectively formed on the outer surface of the protective box.
[0013] As a preferred embodiment of the PWM solar controller with a waterproof structure provided by the present invention, threaded holes two are formed on both sides of the protective box, and the threaded holes two penetrate through the solar controller body.
[0014] As a preferred embodiment of the PWM solar controller with a waterproof structure provided by the present invention, the second protective member includes a sliding plate. On both sides of the inner surface of the first movable groove, first sliding grooves are formed. The sliding plate is slidably arranged inside the first movable groove and the first sliding grooves. A first spring is fixedly connected between the sliding plate and the inner bottom surface of the first movable groove. Six first springs are arranged in a linear array. Six second sliding grooves are formed on the inner side surface of the sliding plate. A sealing block is slidably connected to the inner surface of the second sliding groove. A second spring is fixedly connected between the sealing block and the sliding plate.
[0015] As a preferred embodiment of the PWM solar controller with a waterproof structure provided by the present invention, a semi-circular groove is formed at the upper end of the sealing block.
[0016] As a preferred embodiment of the PWM solar controller with a waterproof structure provided by the present invention, a second movable groove is formed at the lower right corner of the front side of the protective box. A connecting plate is slidably connected to the inner surface of the second movable groove. The connecting plate is fixedly connected to the sliding plate.
[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0018] Through the action of the second protective member, when the sealing block is docked with the external wire at the interface one, the sealing block is closely attached to the external wire. When the interface one is not docked with the external wire, the sealing block is closely attached to the inner top surface of the movable groove one, thereby realizing the protection of the interface one. With the cooperation of the first protective member, the protection of the solar controller body is realized, preventing water from seeping into the inside of the solar controller body and causing damage to the solar controller body, increasing the service life of the solar controller body, and reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 Structural schematic diagram of the PWM solar controller with a waterproof structure provided by the present application;
[0020] Figure 2 Bottom view structural schematic diagram of the solar controller body of the PWM solar controller with a waterproof structure provided by the present application;
[0021] Figure 3 Rear view structural schematic diagram of the protective box of the PWM solar controller with a waterproof structure provided by the present application;
[0022] Figure 4 Rear sectional view structural schematic diagram of the protective box of the PWM solar controller with a waterproof structure provided by the present application;
[0023] Figure 5 Side sectional view structural schematic diagram of the protective box of the PWM solar controller with a waterproof structure provided by the present application;
[0024] Figure 6 Enlarged structural schematic diagram of A of the PWM solar controller with a waterproof structure provided by the present application;
[0025] Figure 7 Structural schematic diagram of the slide plate of the PWM solar controller with a waterproof structure provided by the present application;
[0026] Figure 8 Side sectional view structural schematic diagram of the slide plate of the PWM solar controller with a waterproof structure provided by the present application.
[0027] Labels in the figure:
[0028] 1. Solar controller body; 11. First threaded hole; 12. Display screen; 13. Button; 14. First interface; 15. Second interface; 2. Protection box; 21. Second threaded hole; 22. Transparent glass; 23. Rubber button; 24. Inclined plate; 3. First movable groove; 31. First sliding groove; 32. Slide plate; 33. First spring; 34. Second sliding groove; 35. Sealing block; 36. Second spring; 4. Second movable groove; 41. Connecting plate. Detailed implementation mode
[0029] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present utility model.
[0030] Therefore, the following detailed description of the embodiments of the present utility model is not intended to limit the scope of the present utility model claimed, but merely represents some embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.
[0031] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments may be combined with each other.
[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0033] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the inventive product is normally placed, or the orientation or positional relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.
[0034] As described in the background art, rainwater will seep into the interior through the gap between the wire and the interface of the solar controller, resulting in damage to the solar controller, shortening the service life and increasing the maintenance cost.
[0035] To solve this technical problem, the present utility model provides a PWM solar controller with a waterproof structure.
[0036] Specifically, please refer to Figure 1-8 The PWM solar controller with a waterproof structure specifically includes a solar controller body 1, four threaded holes 11 are opened on both sides of the solar controller body 1, a display screen 12 and a button 13 are installed on the front side of the solar controller body 1, an interface 14 is opened on the front side of the solar controller body 1 below the button 13, an interface 2 15 is opened on the lower surface of the solar controller body 1, and six interfaces 14 and 15 are opened in a linear array respectively, a protective box 2 is set on the outer surface of the solar controller body 1, a first protective piece for protecting the solar controller body 1 is fixedly connected to the front side of the protective box 2, a movable groove 3 is opened inside the protective box 2 in front of the interface 14, and a second protective piece for protecting the interface 14 is slidably connected to the inner surface of the movable groove 3.
[0037] Through the action of the second protective member, the sealing block 35 is tightly fitted with the external wire when the interface 14 is connected to the external wire, and when the interface 14 is not connected to the external wire, the sealing block 35 is tightly fitted with the inner top surface of the movable groove 3, thereby protecting the interface 14. In combination with the action of the first protective member, the solar controller body 1 is protected to prevent water from penetrating into the interior of the solar controller body 1 to damage the solar controller body 1, thereby increasing the service life of the solar controller body 1 and reducing maintenance costs.
[0038] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.
[0039] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.
[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.
[0041] Example 1
[0042] Please refer to Figure 1-8, a PWM solar controller with a waterproof structure, includes a solar controller body 1. Four threaded holes one 11 are opened on both sides of the solar controller body 1. A display screen 12 and buttons 13 are installed on the front side of the solar controller body 1. An interface one 14 is opened below the buttons 13 on the front side of the solar controller body 1. An interface two 15 is opened on the lower surface of the solar controller body 1. Six interface ones 14 and six interface twos 15 are respectively arranged in a linear array. A protective box 2 is sleeved on the outer surface of the solar controller body 1. A first protective member for protecting the solar controller body 1 is fixedly connected to the front side of the protective box 2. An activity slot one 3 is opened on the front side of the interface one 14 inside the protective box 2. A second protective member for protecting the interface one 14 is slidably connected to the inner surface of the activity slot one 3. Threaded holes two 21 are opened on both sides of the protective box 2, and the threaded holes two 21 penetrate through the solar controller body 1.
[0043] Implementation process: When installing the solar controller body 1, drill holes at the place where installation is required, and use bolts to fix the solar controller body 1 through the threaded holes one 11. Then, move the protective box 2 from front to back and sleeve it on the outside of the solar controller body 1, and use bolts to fix the protective box 2 and the solar controller body 1 together through the threaded holes two 21.
[0044] Implementation benefits: Realize the fixation of the solar controller body 1 and the protective box 2.
[0045] Embodiment 2
[0046] The second protective member includes a sliding plate 32. Sliding grooves one 31 are opened on both sides of the inner surface of the activity slot one 3. The sliding plate 32 is slidably arranged inside the activity slot one 3 and the sliding grooves one 31. A spring one 33 is fixedly connected between the sliding plate 32 and the inner bottom surface of the activity slot one 3. Six spring ones 33 are arranged in a linear array. Six sliding grooves two 34 are opened on the inner side surface of the sliding plate 32. A sealing block 35 is slidably connected to the inner surface of the sliding grooves two 34. A spring two 36 is fixedly connected between the sealing block 35 and the sliding plate 32. A semi-circular groove is opened at the upper end of the sealing block 35. An activity slot two 4 is opened at the lower right corner of the front side of the protective box 2. A connecting plate 41 is slidably connected to the inner surface of the activity slot two 4, and the connecting plate 41 is fixedly connected to the sliding plate 32.
[0047] Implementation process: When it is necessary to connect an external wire to the solar controller body 1 through the first interface 14, pull down the connecting plate 41 to drive the sliding plate 32 to slide downward synchronously inside the first movable groove 3 and the first sliding groove 31. The movement of the sliding plate 32 drives the second spring 36 and the sealing block 35 to slide downward synchronously. The sealing block 35 moves up and down from the notch opened on the outer surface of the protective box 2, so that the first interface 14 is exposed through the notch. Manually connect the external wire to the first interface 14, and then release the connecting plate 41. The sliding plate 32 slides upward under the elastic force of the first spring 33. The sliding of the sliding plate 32 drives the second spring 36 and the sealing block 35 to move upward synchronously, so that the semicircular notch at the upper end of the sealing block 35 contacts the external wire. At the same time, because the elastic force of the first spring 33 is much greater than the elastic force of the second spring 36, the sliding plate 32 continues to move upward and compresses the second spring 36, so that the sealing block 35 is in close contact with the wire under the elastic force of the second spring 36. The sealing block 35 on the outside of the first interface 14 that is not connected to the external wire is in close contact with the inner top surface of the first movable groove 3 under the elastic force of the second spring 36, sealing the notch opened on the horizontal plane of the protective box 2 and the first interface 14, and preventing water from seeping into the solar controller body 1 through the first interface 14.
[0048] Implementation benefit: It realizes the protection work against water seepage of the first interface 14.
[0049] Embodiment 3
[0050] The first protective member includes a transparent glass 22 and a rubber button 23. The transparent glass 22 and the rubber button 23 are fixedly connected to the front side of the protective box 2. The transparent glass 22 and the rubber button 23 correspond to the positions of the display screen 12 and the button 13 respectively. Two sides of the inner surface of the protective box 2 are fixedly connected with inclined plates 24, and a plurality of inclined plates 24 are arranged in an array. Notches corresponding to the display screen 12, the button 13, the first interface 14, and the second interface 15 are respectively opened on the outer surface of the protective box 2.
[0051] Implementation process: On rainy and cloudy days, water slides from the upper surface of the protective box 2 to both sides of the protective box 2. Due to the setting of the inclined plates 24, the water will not enter the solar controller body 1 through the protective box 2. At the same time, it can play a good role in heat dissipation and rain protection on the side. Through the setting of the transparent glass 22 and the rubber button 23, while protecting the solar controller body 1, it enables the staff to conveniently use the rubber button 23 to click the button 13 and observe the display screen 12 through the transparent glass 22. The second interface 15 is opened on the lower surface of the solar controller body 1, and there will be no water seepage.
[0052] Implementation benefit: It realizes the protection of the solar controller body 1.
[0053] The above embodiments are only used to illustrate the present invention rather than limit the technical solutions described by the present invention. Although this specification has described the present invention in detail with reference to the above respective embodiments, the present invention is not limited to the above specific implementation manners. Therefore, any modification or equivalent replacement made to the present invention; and all technical solutions and their improvements that do not depart from the spirit and scope of the invention are covered by the scope of the claims of the present invention.
Claims
1. A PWM solar controller with a waterproof structure, comprising a solar controller body (1), four threaded holes (11) are provided on both sides of the solar controller body (1), a display screen (12) and a button (13) are installed on the front side of the solar controller body (1), an interface (14) is provided on the front side of the solar controller body (1) below the button (13), an interface (15) is provided on the lower surface of the solar controller body (1), and six of the interface (14) and the interface (15) are provided in a linear array, characterized in that: The outer surface of the solar controller body (1) is sleeved with a protective box (2), the front side of the protective box (2) is fixedly connected with a first protective piece for protecting the solar controller body (1), the interior of the protective box (2) is provided with a movable groove (3) located in front of the interface (14), and the inner surface of the movable groove (3) is slidably connected with a second protective piece for protecting the interface (14).
2. The PWM solar controller with waterproof structure according to claim 1 is characterized in that: The first protective member comprises transparent glass (22) and a rubber button (23). The transparent glass (22) and the rubber button (23) are fixedly connected to the front side of the protective box (2). The transparent glass (22) and the rubber button (23) correspond to the positions of the display screen (12) and the button (13) respectively. Inclined plates (24) are fixedly connected to both sides of the inner side of the protective box (2). A plurality of inclined plates (24) are arranged in an array.
3. The PWM solar controller with waterproof structure according to claim 1, characterized in that: The outer surface of the protection box (2) is provided with slots corresponding to the display screen (12), the button (13), the first interface (14), and the second interface (15).
4. The PWM solar controller with waterproof structure according to claim 1, characterized in that: Two threaded holes (21) are provided on both sides of the protection box (2), and the two threaded holes (21) penetrate the solar controller body (1).
5. The PWM solar controller with waterproof structure according to claim 4, characterized in that: The second protective member comprises a slide plate (32), and two sides of the inner surface of the movable groove one (3) are provided with slide grooves one (31). The slide plate (32) is slidably arranged inside the movable groove one (3) and the slide groove one (31). A spring one (33) is fixedly connected between the slide plate (32) and the inner bottom surface of the movable groove one (3), and six springs one (33) are arranged in a linear array. Six slide grooves two (34) are provided on the inner side surface of the slide plate (32), and a sealing block (35) is slidably connected to the inner surface of the slide groove two (34), and a spring two (36) is fixedly connected between the sealing block (35) and the slide plate (32).
6. The PWM solar controller with waterproof structure according to claim 5, characterized in that: A semicircular groove is formed at the upper end of the sealing block (35).
7. The PWM solar controller with waterproof structure according to claim 6, characterized in that: A movable groove 2 (4) is provided at the lower right corner of the front side of the protection box (2), and a connecting plate (41) is slidably connected to the inner surface of the movable groove 2 (4), and the connecting plate (41) is fixedly connected to the slide plate (32).