Protective distribution box

Abstract

This application relates to the field of distribution box technology, and more specifically to a protective distribution box, comprising: a box body, a rotating component, and a normally open structure. The box body has a receiving cavity with an air inlet at the bottom and an air outlet at the top. The rotating component is rotatably mounted on the top of the box body and has solid contact portions and notches distributed circumferentially. The normally open structure is raised and lowered at the air outlet and includes a first lifting component and a first elastic component. The upper part of the first lifting component has a first ball head, and the first lifting component has a through first flow hole. Under normal conditions, the first ball head extends out of the air outlet and is located in the notch, and the first flow hole connects the receiving cavity to the outside. When the solid contact portion contacts the first ball head, the solid contact portion closes the upper opening of the first flow hole, thereby closing the air outlet. This invention achieves the advantages of preventing excessive moisture in humid environments and maintaining heat dissipation in dry environments by rotating the rotating component and closing the normally open structure.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of distribution box, more particularly to a protective distribution box. BACKGROUND

[0002] As the core equipment of power distribution and control, the distribution box is internally installed with various electrical components. In order to ensure the normal operation of the electrical components, the distribution box usually needs to take into account the dual requirements of ventilation and heat dissipation and rain and moisture prevention.

[0003] In the prior art, the distribution box includes a box body having a receiving cavity, the bottom and top of the receiving cavity are respectively provided with an air inlet and an air outlet, external cold air enters the receiving cavity from the air inlet, flows through the electrical components to take away heat and is discharged from the air outlet to achieve heat dissipation. At the same time, in order to prevent rainwater from falling into the box body through the air outlet in rainy days, a rainproof top cover is usually fixedly arranged above the air outlet. A gap is left between the top cover and the top surface of the box body as a ventilation channel, and rainwater hitting the top cover will slide to all directions instead of directly pouring into the air outlet. However, when the outside is too humid, the receiving cavity will still be too humid. How to prevent the receiving cavity from being too humid and ensure heat dissipation under normal conditions is a technical problem to be solved by those skilled in the art.

[0004] Therefore, there is a need to provide a protective distribution box that can prevent over-humidification in a humid environment and maintain heat dissipation in a dry environment. SUMMARY

[0005] The main purpose of the present application is to provide a protective distribution box, wherein the protective distribution box includes a box body, a rotating member and a normally open structure, the box body has a receiving cavity, the bottom of the receiving cavity is provided with an air inlet, and the top of the receiving cavity is provided with an air outlet; the rotating member is rotatably installed on the top of the box body, the rotating member has a solid contact portion and a gap distributed in the circumferential direction; the normally open structure is arranged at the air outlet, the normally open structure includes a first lifting member and a first elastic member, the upper part of the first lifting member has a first ball head portion, and the first lifting member is provided with a first flow-through hole; the first elastic member applies an upward elastic force to the first lifting member, so that in the normal state, the first ball head portion protrudes out of the air outlet and is located in the gap, and the first flow-through hole communicates the receiving cavity with the outside; when the rotating member is circumferentially rotated to the position where the solid contact portion contacts the first ball head portion, the solid contact portion pushes the first ball head portion to move downward, so that the first lifting member is retracted into the air outlet, and the solid contact portion closes the upper end hole of the first flow-through hole, thereby closing the air outlet. In the normal state, air passes through the normally open structure and flows to the outside. When the external environment is humid, the rotating member is rotated to close the normally open structure, thereby achieving the advantages of preventing over-humidification in a humid environment and maintaining heat dissipation in a dry environment.

[0006] To achieve at least one of the above-mentioned objectives, this application provides a protective distribution box, wherein the protective distribution box includes: The housing has a receiving cavity, with an air inlet at the bottom and an air outlet at the top; A rotating component, rotatably mounted on the top of the housing, the rotating component having solid contact portions and notches distributed in the circumferential direction; A normally open structure is provided, which is lifted and lowered at the air outlet. The normally open structure includes a first lifting member and a first elastic member. The upper part of the first lifting member has a first ball head, and the first lifting member is provided with a through first flow hole. The first elastic member applies an upward elastic force to the first lifting member, such that under normal conditions, the first ball head extends out of the air outlet and is located within the notch, and the first flow hole connects the receiving cavity to the outside. When the rotating member rotates circumferentially until the solid contact portion contacts the first ball head, the solid contact portion pushes the first ball head downward, causing the first lifting member to retract into the air outlet, and the solid contact portion closes the upper opening of the first flow hole, thereby closing the air outlet.

[0007] In one or more embodiments of this application, the protective distribution box further includes a fan, which is disposed at the air outlet.

[0008] In one or more embodiments of this application, the protective distribution box further includes a humidity sensor and a rotary drive device. The humidity sensor is disposed in the accommodating cavity and is used to detect the humidity in the accommodating cavity. The rotary drive device is fixed in the accommodating cavity, and the rotating shaft of the rotary drive device extends out of the top of the box body and is fixedly connected to the center of the rotating component. When the humidity sensor detects that the humidity reaches a predetermined threshold, the rotary drive device drives the rotating component to rotate.

[0009] In one or more embodiments of this application, the first lifting member further includes a first vertical cylinder portion and a first disc portion. The first vertical cylinder portion is connected between the first disc portion and the first ball head. The first flow hole extends from the first vertical cylinder portion to the first ball head. The first vertical cylinder portion is inserted into the air outlet. The two ends of the first elastic member are connected to the first disc portion and the housing.

[0010] In one or more embodiments of this application, the protective distribution box further includes a top cover, which is fixedly connected to the top of the box body. A ventilation chamber is formed between the inner wall surface of the top cover and the top surface of the box body, and a flow channel connecting the ventilation chamber and the outside is provided between the top cover and the outer wall of the box body.

[0011] In one or more embodiments of this application, the top cover has a plurality of lifting holes; the protective distribution box further includes a normally closed structure, the normally closed structure including a second lifting member and a plurality of supporting members, the supporting members being arranged in a ring outside the lifting holes and fixed to the top surface of the top cover, the second lifting member including a second vertical cylinder, a connecting column, a second disc body, and a second ball head, the two ends of the second vertical cylinder being connected to the connecting column and the second ball head respectively, the end of the connecting column opposite to the second vertical cylinder being connected to the second disc body, the second disc body being located above the supporting members, and the second vertical cylinder having a closed portion, The first annular groove and the liquid inlet channel are connected. The second ball head extends downward into the ventilation chamber a predetermined distance. The two ends of the liquid inlet channel are respectively connected to the inner cavity of the first annular groove and the second ball head. Under normal conditions, the second disc body is supported on the support member under the action of gravity, and the sealing part seals the end of the lifting hole away from the ventilation chamber. When the rotating member rotates to the point where the solid contact part contacts the second ball head, the solid contact part pushes the second ball head upward, so that the first annular groove is connected to the outside, and external liquid can flow into the ventilation chamber through the first annular groove and the liquid inlet channel.

[0012] In one or more embodiments of this application, when the rotating member rotates to the point where the solid contact portion simultaneously contacts the first ball head and the second ball head, the air outlet is closed, and the first annular groove is connected to the outside.

[0013] In one or more embodiments of this application, the second ball head is normally located within the notch.

[0014] In one or more embodiments of this application, a plurality of second annular grooves are provided on the outer side wall of the first vertical cylinder, and a sealing ring is provided in each second annular groove to seal the gap between the first vertical cylinder and the air outlet.

[0015] In one or more embodiments of this application, the top of the housing is provided with a plurality of annular protrusions, the middle part of the rotating member has a central part, the solid contact part and the notch are arranged outside the central part, and the side of the central part facing the housing is provided with a plurality of third annular grooves, and the annular protrusions extend into the corresponding third annular grooves respectively to form a labyrinth seal.

[0016] In this embodiment, the protective distribution box includes a box body, a rotating component, and a normally open structure. The box body has a receiving cavity with an air inlet at the bottom and an air outlet at the top. The rotating component is rotatably mounted on the top of the box body and has solid contact portions and notches distributed circumferentially. The normally open structure is lifted and positioned at the air outlet and includes a first lifting component and a first elastic component. The upper part of the first lifting component has a first ball head, and the first lifting component has a through first flow hole. The first elastic component applies an upward elastic force to the first lifting component, such that... Under normal conditions, the head of the first ball extends out of the air outlet and is located within the notch, and the first flow hole connects the accommodating cavity with the outside. When the rotating part rotates circumferentially until the solid contact part contacts the head of the first ball, the solid contact part pushes the head of the first ball downward, causing the first lifting part to retract into the air outlet, and the solid contact part seals the upper opening of the first flow hole, thereby sealing the air outlet. Under normal conditions, air passes through the normally open structure and flows to the outside. When the external environment is humid, the rotating part rotates and seals the normally open structure, achieving the advantage of preventing excessive moisture in humid environments and maintaining heat dissipation in dry environments. Attached Figure Description

[0017] These and / or other aspects and advantages of this application will become clearer and more readily understood from the following detailed description of embodiments of this application taken in conjunction with the accompanying drawings, wherein: Figure 1 The illustration shows a cross-sectional view of a protective distribution box according to this application; Figure 2 The diagram shows Figure 1 A magnified view of a portion at point C; Figure 3 The diagram illustrates the structure of the rotating component; Figure 4 The diagram shows Figure 1 A magnified view of a portion at point D; Figure 5 The diagram shows Figure 1 A magnified view of a portion at point E. Detailed Implementation

[0018] The terms and words used in the following specification and claims are not limited to their literal meaning, but are used solely by the inventors to enable a clear and consistent understanding of this application. Therefore, it will be apparent to those skilled in the art that the following description of various embodiments of this application is provided for illustrative purposes only and not for the purpose of limiting the application as defined in the appended claims and their equivalents.

[0019] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0020] While ordinal numbers such as "first," "second," etc., will be used to describe various components, this does not limit which components are used. The term is used only to distinguish one component from another. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component, without departing from the teachings of the inventive concept. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. It will also be understood that the terms “comprising” and / or “having” as used in this specification specify the presence of the described features, numbers, steps, operations, components, elements or combinations thereof, without excluding the presence or addition of one or more other features, numbers, steps, operations, components, elements or groups thereof.

[0022] Indicative protective distribution box, for reference Figures 1 to 5 According to any preferred embodiment of the present invention, a protective distribution box includes a box body 10, a rotating component 20, a fan 80, a normally open structure 30, and a humidity sensor 70.

[0023] Specifically, the housing 10 has a receiving cavity 101, the bottom and top of the receiving cavity 101 are respectively provided with an air inlet 102 and an air outlet 103, the rotating member 20 is rotatably installed on the top of the housing 10, each of the air outlets 103 is provided with a normally open structure 30, the air outlet 103 is provided with a fan 80, and the humidity sensor 70 is located in the receiving cavity 101.

[0024] It should be noted that when the fan 80 is working, external air is drawn into the accommodating cavity 101, passes through the normally open structure 30 from bottom to top, and flows out from the air outlet 103. When the humidity sensor 70 detects that the humidity in the accommodating cavity 101 has risen to a predetermined threshold, the rotating member 20 rotates, causing the normally open structure 30 to move downward and close the air outlet 103, so as to avoid the risk of external rainwater entering the accommodating cavity 101 and causing a short circuit in the electrical components inside the accommodating cavity 101.

[0025] Furthermore, to specifically realize the normally open structure 30 being raised and lowered at the air outlet 103, the normally open structure 30 includes a first lifting member 301 and a first elastic member 302. The first lifting member 301 includes a first vertical cylinder portion 3011, a first disc portion 3012, and a first ball head 3013. The first vertical cylinder portion 3011 is located between the first disc portion 3012 and the first ball head 3013. The middle section of the first lifting member 301 has a first flow hole 3014 extending from the first vertical cylinder portion 3011 to the first ball head 3013. The first vertical cylinder portion 3011 passes through the air outlet 103. The two ends of the first elastic member 302 are respectively connected to the first disc portion 3012 and the housing 10. The first ball head 3013 extends out of the air outlet 103 by a predetermined distance. The rotating member 20 includes a solid contact portion 201 and a notch 202. The solid contact portion 201 and the notch 202 are distributed in the circumferential direction of the rotating member 20.

[0026] It should be noted that, under normal conditions, under the elastic force of the first elastic element 302, the first ball head 3013 extends a predetermined distance beyond the air outlet 103, and the first ball head 3013 is located within the notch 202. That is, at this time, the rotating element 20 does not exert any force on the first ball head 3013. When the fan 80 is working, external air can flow in from the air inlet 102 from bottom to top and flow out from the air outlet 103. When the humidity sensor 70 detects that the humidity inside the accommodating cavity 101 reaches a predetermined threshold, the rotating element 20 rotates circumferentially, causing the actual... When the body contact portion 201 contacts the first ball head 3013, the first ball head 3013 is subjected to a downward force and retracts into the air outlet 103. Since the body contact portion 201 contacts the first ball head 3013, the body contact portion 201 closes the opening of the first flow hole 3014 near the rotating member 20, thereby realizing that the normally open structure 30 closes the air outlet 103 after the rotating member 20 rotates at a predetermined angle, thus avoiding the risk that external rainwater can enter the receiving cavity 101 along the first flow hole 3014.

[0027] Furthermore, in order to realize the rotation of the rotating component 20, the protective distribution box also includes a rotation drive device 60, which is fixedly installed in the accommodating cavity 101, and the rotating shaft 601 of the rotation drive device 60 extends out of the top of the box body 10 and is fixedly connected to the center of the rotating component 20.

[0028] It should be noted that when the rotating shaft 601 of the rotary drive device 60 rotates, the rotating component 20 rotates circumferentially.

[0029] However, since the two ends of the first flow hole 3014 are normally connected to the accommodating cavity 101 and the outside, when it rains outside, external rainwater will fall directly into the accommodating cavity 101 until the humidity sensor 70 detects that the humidity in the accommodating cavity 101 has reached a predetermined threshold. There is a period of time between this external rainwater entering the accommodating cavity 101 and the humidity sensor 70 detecting that the threshold has been exceeded and issuing a signal. During this period of time, external rainwater will fall into the accommodating cavity 101, which still poses a risk of causing the electrical components in the accommodating cavity 101 to become damp and short-circuit.

[0030] Therefore, in this application, the protective distribution box further includes a top cover 40, which is fixedly connected to the box body 10, and a ventilation chamber 403 is provided between the inner wall surface of the top cover 40 and the top surface of the box body 10, and a flow channel 404 is provided between the ventilation chamber 403 and the outer wall surface of the box body 10.

[0031] It should be noted that by setting the top cover 40, external rainwater, after contacting the top cover 40, slides outward along the top cover 40 and cannot fall into the first flow hole 3014. Under normal circumstances, the air flowing out of the air outlet 103 can still pass through the flow channel 404 to the outside, thereby effectively avoiding the risk of rainwater directly entering the accommodating cavity 101 and short-circuiting electrical components before the humidity sensor 70 sends an electrical signal when it rains in the external environment.

[0032] Furthermore, since the ventilation chamber 403 is constantly exposed to the outside environment, over time, the surface of the rotating component 20 and the top surface of the housing 10 will become covered with dust. To facilitate dust removal, the top cover 40 has several lifting holes 401, such as... Figure 4 As shown, the protective distribution box also includes a normally closed structure 50, which includes a second lifting member 501 and multiple supporting members 502. The supporting members 502 are arranged in a ring around the outside of the lifting hole 401 and are fixedly connected to the top surface of the top cover 40. The second lifting member 501 includes a second vertical cylinder portion 5011, a connecting column 5012, a second disc portion 5013, and a second ball head 5014. The two ends of the second vertical cylinder portion 5011 are respectively connected to the connecting column 5012 and the second ball head. The second vertical cylinder 5011 is connected to the second disc body 5013 at one end away from the second vertical cylinder 5011. The second disc body 5013 is located above the support member 502. The second vertical cylinder 5011 has a closed part 5015, a first annular groove 5016 and a liquid inlet channel 5017. The second ball head 5014 extends into the ventilation chamber 403 by a predetermined distance. The two ends of the liquid inlet channel 5017 are respectively connected to the first annular groove 5016 and the ventilation chamber 403.

[0033] It should be noted that, under normal conditions, the normally closed structure 50 is located within the notch 202. Under the action of gravity, the bottom surface of the second disc body 5013 abuts against the support member 502, and the sealing part 5015 seals the end of the lifting hole 401 away from the ventilation chamber 403. Therefore, external rainwater is blocked by the sealing part 5015 and cannot pass through the lifting hole 401 and enter the ventilation chamber 403. When the rotating member 20 rotates circumferentially and the solid contact part 201 contacts the second ball head 5014, the second ball head 5014 moves upward a predetermined distance, and the... When the first annular groove 5016 is connected to the outside, the ventilation chamber 403, the liquid inlet channel 5017, the first annular groove 5016 and the outside are connected in sequence. Rainwater can flow into the ventilation chamber 403 along the first annular groove 5016 and the liquid inlet channel 5017, and clean the dust on the surface of the rotating part 20 and the top surface of the box 10. It should also be noted that when the rotating part 20 rotates, since the normally open structure 30 closes the air outlet 103, the external rainwater will not flow into the receiving cavity 101, but will eventually pass through the flow channel 404 along the side wall of the box 10.

[0034] It is evident that one function of the rotating component 20 is to seal the air outlet 103 when the external environment is humid, so as to prevent the cavity 101 from becoming too humid. Another function is to prevent external rainwater from falling directly into the cavity 101 when it rains in the external environment. At the same time, external rainwater can also clean the rotating component 20.

[0035] Furthermore, to prevent rainwater from seeping into the receiving cavity 101 through the gap between the air outlet 103 and the first vertical cylinder 3011, such as... Figure 2 As shown, the side wall of the first vertical cylinder 3011 has a plurality of second annular grooves 3015, and each second annular groove 3015 is provided with a sealing ring 3016.

[0036] In addition, to prevent rainwater from seeping in through the outer openings of the housing 10 as the rotating shaft 601 of the rotary drive device 60 passes through the housing 10, the housing 10 also has a plurality of annular protrusions 104. The middle section of the rotating member 20 has a central portion 203. The solid contact portion 201 and the notch 202 are located outside the central portion 203 and are arranged alternately. The side of the central portion 203 near the rotary drive device 60 has a plurality of third annular grooves 204. Each of the third annular grooves 204 has an annular protrusion 104 extending into it, forming a labyrinth seal.

[0037] Furthermore, the humidity sensor 70 is located in the middle section of the side of the accommodating cavity 101 where the air inlet 102 is located.

[0038] In summary, the protective distribution box described in the embodiments of this application is explained, which provides advantages such as preventing excessive moisture in humid environments and maintaining heat dissipation in dry environments.

[0039] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functional and structural principles of the present invention have been demonstrated and explained in the embodiments, and any modifications or variations of the embodiments of the present invention may be made without departing from these principles.

Claims

1. A protective distribution box, characterized in that: The protective distribution box includes The housing has a receiving cavity, with an air inlet at the bottom and an air outlet at the top; A rotating component, rotatably mounted on the top of the housing, the rotating component having solid contact portions and notches distributed in the circumferential direction; A normally open structure is provided, which is lifted and lowered at the air outlet. The normally open structure includes a first lifting member and a first elastic member. The upper part of the first lifting member has a first ball head, and the first lifting member is provided with a through first flow hole. The first elastic member applies an upward elastic force to the first lifting member, such that under normal conditions, the first ball head extends out of the air outlet and is located within the notch, and the first flow hole connects the receiving cavity to the outside. When the rotating member rotates circumferentially until the solid contact portion contacts the first ball head, the solid contact portion pushes the first ball head downward, causing the first lifting member to retract into the air outlet, and the solid contact portion closes the upper opening of the first flow hole, thereby closing the air outlet.

2. The protective distribution box according to claim 1, characterized in that: The protective distribution box also includes a fan, which is located at the air outlet.

3. The protective distribution box according to claim 1 or 2, characterized in that: The protective distribution box also includes a humidity sensor and a rotary drive device. The humidity sensor is disposed in the accommodating cavity to detect the humidity in the accommodating cavity. The rotary drive device is fixed in the accommodating cavity, and the rotating shaft of the rotary drive device extends out of the top of the box and is fixedly connected to the center of the rotating component. When the humidity sensor detects that the humidity reaches a predetermined threshold, the rotary drive device drives the rotating component to rotate.

4. The protective distribution box according to any one of claims 1 to 3, characterized in that: The first lifting component further includes a first vertical cylinder portion and a first disc portion. The first vertical cylinder portion is connected between the first disc portion and the first ball head. The first flow hole extends from the first vertical cylinder portion to the first ball head. The first vertical cylinder portion passes through the air outlet. The two ends of the first elastic member are connected to the first disc portion and the housing.

5. The protective distribution box according to claim 1, characterized in that: The protective distribution box also includes a top cover, which is fixedly connected to the top of the box body. A ventilation chamber is formed between the inner wall of the top cover and the top surface of the box body. A flow channel connecting the ventilation chamber and the outside is provided between the top cover and the outer wall of the box body.

6. The protective distribution box according to claim 5, characterized in that: The top cover has several lifting holes; the protective distribution box also includes a normally closed structure, which includes a second lifting member and multiple supporting members. The supporting members are arranged in a ring outside the lifting holes and fixed to the top surface of the top cover. The second lifting member includes a second vertical cylinder, a connecting column, a second disc body, and a second ball head. The two ends of the second vertical cylinder are respectively connected to the connecting column and the second ball head. The end of the connecting column opposite to the second vertical cylinder is connected to the second disc body. The second disc body is located above the supporting members. The second vertical cylinder has a closed part, a first annular groove, and an inlet. The liquid inlet channel extends downward into the ventilation chamber a predetermined distance, with both ends of the liquid inlet channel communicating with the first annular groove and the inner cavity at the second ball head, respectively. Under normal conditions, the second disc body is supported on the support member under gravity, and the sealing part seals the end of the lifting hole away from the ventilation chamber. When the rotating member rotates to the point where the solid contact part contacts the second ball head, the solid contact part pushes the second ball head upward, allowing the first annular groove to communicate with the outside, so that external liquid can flow into the ventilation chamber through the first annular groove and the liquid inlet channel.

7. The protective distribution box according to claim 6, characterized in that: When the rotating component rotates to the point where the solid contact portion simultaneously contacts the first ball head and the second ball head, the air outlet is closed, and the first annular groove is connected to the outside.

8. The protective distribution box according to claim 6, characterized in that: The second ball head is normally located within the notch.

9. The protective distribution box according to claim 4, characterized in that: The outer wall of the first vertical cylinder is provided with a plurality of second annular grooves, and each second annular groove is provided with a sealing ring to seal the gap between the first vertical cylinder and the air outlet.

10. The protective distribution box according to any one of claims 1 to 3, characterized in that: The top of the housing is provided with multiple annular protrusions, the middle part of the rotating component has a central part, the solid contact part and the notch are arranged on the outside of the central part, the side of the central part facing the housing is provided with multiple third annular grooves, and the annular protrusions extend into the corresponding third annular grooves to form a labyrinth seal.

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