Power supply box and boost type switching power supply equipment

Abstract

The utility model relates to the technical field of electronic equipment, in particular to a power supply box and boost switching power supply equipment. The power supply box comprises a box body, a floating piece and a plugging piece, the interior of the box body is used for installing a circuit control mainboard, the height direction of the box body is arranged in the vertical direction, the box body comprises a ventilation side wall provided with ventilation holes, and the ventilation side wall extends in the vertical direction. The plugging piece and the floating piece are both movably arranged in the box body, the floating piece is located in the lower space of the box body below the circuit control mainboard, when water is accumulated at the bottom of the box body, the floating piece floats upwards under the action of buoyancy and pushes the plugging piece to move, the ventilation hole is plugged by the plugging piece, and therefore the waterproof performance of the power supply box is improved to a certain degree, and the service life of the power supply box is prolonged. Water is prevented from continuously entering the box body through the ventilation hole, and accumulated water is prevented from continuously spreading upwards to the circuit control mainboard to affect safe operation of the circuit control mainboard.

Description

Technical Field

[0001] This application relates to the field of electronic equipment technology, and in particular to a power supply box and a boost-type switching power supply device. Background Technology

[0002] A boost-type switching power supply is a power device that converts the input voltage to a higher voltage using switching devices (such as IGBTs, insulated gate bipolar transistors). It typically includes an outer casing and a circuit control board installed inside the casing. The side walls of the casing are equipped with ventilation holes for heat dissipation. However, traditional boost-type switching power supplies often lack waterproof design in their casings. This makes it easy for water to enter the casing through the ventilation holes in humid environments or working scenarios where water may splash. This can lead to short circuits, damage, and other malfunctions in the electronic components and circuits on the circuit control board inside the casing, affecting the reliability and stability of the power supply. Utility Model Content

[0003] The purpose of this utility model is to provide a power supply box and a boost-type switching power supply device, so as to improve the waterproof performance of the power supply box to a certain extent and prevent water from entering the power supply box through the ventilation holes.

[0004] This utility model provides a power supply box, including a box body, a floating component, and a sealing component;

[0005] The box contains a circuit control main board for installing power supply equipment. The height of the box is set vertically. The box includes a ventilated sidewall extending vertically, and the ventilated sidewall is provided with ventilating holes.

[0006] Both the floating component and the sealing component are movably disposed within the box body. The floating component is located in the lower space of the box body below the circuit control motherboard. When water accumulates at the bottom of the box body, the floating component can float up under the action of buoyancy and push the sealing component to move, causing the sealing component to block the ventilation hole.

[0007] Furthermore, the sealing member is disposed opposite to the vent sidewall, and a plug is provided at the upper end of the sealing member opposite to the vent hole;

[0008] The sealing component is rotatably connected to the box body via a rotating shaft, the axis of which is horizontal and parallel to the ventilated sidewall.

[0009] The upward movement of the sealing element can push it to rotate, causing the upper end of the sealing element to rotate towards the vent sidewall, so as to block the vent hole with the plug.

[0010] Furthermore, the floating component is provided with a pushing part;

[0011] The lower end of the sealing component is provided with a first inclined surface, and the pushing part is provided with a second inclined surface. The first inclined surface and the second inclined surface form an inclined surface pair, so that when the floating component floats up, the upper end of the pushing part rotates towards the direction of the ventilated sidewall.

[0012] Furthermore, the rotating shaft is provided with a first elastic element, the elastic force of which enables the upper end of the sealing element to have a tendency to move away from the ventilation sidewall.

[0013] Furthermore, the box body also includes two first sidewalls extending in a vertical direction. The two first sidewalls are disposed opposite to each other on both sides of the ventilated sidewall and are perpendicularly connected to the ventilated sidewall respectively. The sealing member is installed between the two first sidewalls with a predetermined assembly gap.

[0014] Furthermore, the bottom wall of the box is provided with drainage holes, and the floating component is supported on the bottom wall by support legs;

[0015] The box body is equipped with a guide section;

[0016] The floating component is slidably disposed in the box body in a vertical direction via the guide portion; or, the circuit control main board is slidably disposed in the box body in a vertical direction via the guide portion, and the floating component is connected to the lower end of the circuit control main board.

[0017] Furthermore, the box body includes two opposing ventilation sidewalls, each of which is provided with a corresponding sealing element. Each sealing element can move under the push of the floating element to block the corresponding ventilation hole.

[0018] Furthermore, the power supply box also includes a base and a support member;

[0019] The base is located below the box body, and the base is provided with a floating chamber. The lower end of the support member is slidably inserted into the floating chamber along the height direction of the box body, and the lower end of the support member abuts against the bottom wall of the floating chamber through a second elastic member.

[0020] The upper end of the support member is provided with a spherical positioning part, which is rotatably connected to the bottom wall of the box.

[0021] Furthermore, the power supply box also includes a hanging ring;

[0022] The top wall of the box has an opening, and a connecting screw is connected to the hanging ring. The end of the connecting screw away from the hanging ring extends into the box through the opening and is screwed with a positioning nut.

[0023] This utility model also provides a boost-type switching power supply device, including the power supply box described in any of the above claims.

[0024] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0025] The power supply box provided by this utility model includes a box body, a floating component, and a sealing component. The box body forms a receiving space for installing the circuit control motherboard of the power supply equipment. In practical applications, the height of the box body is set in the vertical direction. The box body includes a ventilated sidewall with ventilation holes that extend vertically. The ventilation holes are used for ventilation and heat dissipation of the box body.

[0026] The sealing component is movable within the enclosure. This movable component can either block or open the vent holes on the vent sidewall. A movable component is also movable within the enclosure, and a floating component is located in the lower space below the circuit control motherboard. When external water seeps into the enclosure through the vent holes and accumulates at the bottom, the floating component rises due to buoyancy. As it rises, it pushes the sealing component to block the vent holes, thus improving the power supply enclosure's waterproof performance to some extent. This prevents water from continuing to enter the enclosure through the vent holes and prevents accumulated water from spreading upwards to the circuit control motherboard and affecting its safe operation.

[0027] This utility model also provides a boost-type switching power supply device, including the power supply box, so the boost-type switching power supply device also has the beneficial effects of the power supply box. Attached Figure Description

[0028] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0029] Figure 1 This is a structural schematic diagram of the power supply box from a first-view perspective, provided as an embodiment of the present utility model.

[0030] Figure 2 A schematic diagram illustrating the cooperation between the sealing component and the floating component provided in an embodiment of this utility model;

[0031] Figure 3 A schematic diagram of the base of the power supply box provided in an embodiment of this utility model.

[0032] Figure label:

[0033] 1-Box body, 11-Circuit control main board, 12-Ventilating side wall, 13-Ventilating hole, 14-Drainage hole, 2-Sealing component, 21-Plug, 22-Rotating shaft, 23-First inclined surface, 3-Floating component, 31-Pushing part, 32-Second inclined surface, 4-Base, 41-Floating chamber, 42-Support component, 43-Second elastic component, 44-Spherical positioning part, 5-Hanging ring, 51-Connecting screw, 52-Positioning nut. Detailed Implementation

[0034] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.

[0035] The components of the present invention embodiments described and shown in the accompanying drawings can typically be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0036] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0037] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0038] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0039] The following reference Figures 1 to 3 This application describes a power supply box and a boost-type switching power supply device according to some embodiments.

[0040] This application provides a power supply box, such as Figure 1 As shown, the power supply box includes a housing 1, a floating component 3, and a sealing component 2. The housing 1 forms an accommodating space for installing the circuit control main board 11 of the power supply equipment. For boost-type switching power supplies, the circuit control main board 11 is equipped with a boost circuit composed of various electronic components, such as inductors, power switching transistors, diodes, and capacitors. In practical applications, the height of the housing 1 is set vertically. The housing 1 includes a ventilated sidewall 12 with ventilation holes 13 extending vertically. The ventilation holes 13 are used for ventilation and heat dissipation of the housing 1.

[0041] The sealing component 2 is movably disposed within the housing 1. The movable sealing component 2 can either block or open the ventilation hole 13 on the ventilation sidewall 12. A movable component is also movably disposed within the housing 1, and a floating component 3 is located in the lower space of the housing 1 below the circuit control motherboard 11. When external water seeps into the housing 1 through the ventilation hole 13 and accumulates at the bottom, the floating component 3 will rise due to buoyancy. As the floating component 3 rises, it can push the sealing component 2 to move, causing it to block the ventilation hole 13. This improves the waterproof performance of the power supply box to a certain extent, preventing water from continuing to enter the housing 1 through the ventilation hole 13 and preventing the accumulated water from spreading upwards to the circuit control motherboard 11 and affecting its safe operation.

[0042] In one embodiment of this application, preferably, as shown below, Figure 1 and Figure 2 As shown, the sealing component 2 is positioned opposite to the ventilated sidewall 12, and a plug 21 is provided at the upper end of the sealing component 2 opposite to the vent 13. The sealing component 2 is rotatably connected to the housing 1 via a rotating shaft 22, the axis of which extends horizontally and parallel to the ventilated sidewall 12. When the floating component 3 floats, the upper end of the sealing component 2 can rotate towards the ventilated sidewall 12 under the push of the floating component 3 until the sealing component 2 abuts against the ventilated sidewall 12 and the plug 21 blocks the vent 13.

[0043] It should be noted that the vented sidewall 12 has two vent holes spaced vertically. In this application, the upper vent hole is sealed using the sealing component 2. Unless otherwise specified, the vent holes mentioned above and below refer to the upper vent holes. This is because the upper vent hole is the main channel for external water to seep into the box 1. Sealing it directly blocks the main entry path of water. As the lower vent hole is located lower, after the upper vent hole is sealed, external water has difficulty entering through the lower vent hole.

[0044] In this embodiment, preferably, as follows: Figure 2As shown, the end of the sealing member 2 away from the plug 21, i.e. the lower end of the sealing member 2, has a first inclined surface 23. The floating member 3 is provided with a pushing part 31, and the pushing part 31 has a second inclined surface 32. The first inclined surface 23 and the second inclined surface 32 form an inclined surface pair, so that the upward movement of the floating member 3 can be converted into the rotation of the sealing member 2. When the floating member 3 rises, the upper end of the sealing member 2 rotates towards the ventilated side wall 12.

[0045] In this embodiment, preferably, the rotating shaft 22 is provided with a first elastic element, such as a torsion spring; when the upper end of the sealing member 2 rotates to the state where the plug 21 blocks the vent hole 13, the elastic force of the first elastic element acting on the sealing member 2 causes the upper end of the sealing member 2 to have a tendency to move away from the vent side wall 12; therefore, when the water level of the water at the bottom of the box 1 drops and the floating member 3 drops, the upper end of the sealing member 2 will rotate away from the vent side wall 12 under the action of the first elastic element, and reopen the vent hole 13.

[0046] In this embodiment, preferably, the housing 1 further includes two first sidewalls, both extending vertically and disposed opposite to each other on both sides of the ventilated sidewall 12 and perpendicularly connected to the ventilated sidewall 12. The sealing member 2 is installed between the two first sidewalls with a predetermined assembly gap, thereby ensuring that the sealing member 2 can rotate smoothly while providing a certain degree of sealing between the sealing member 2 and the two first sidewalls. This allows water that seeps in through the vent hole 13 to be blocked on the side of the sealing member 2 facing the ventilated sidewall 12, preventing water from affecting the circuit control mainboard 11 on the other side of the sealing member 2.

[0047] In one embodiment of this application, preferably, as shown below, Figure 1 As shown, the box body 1 also includes a bottom wall at the lower end, on which a drain hole 14 is provided to drain water that has entered the box body 1. In practical applications, when external water seeps into the box body 1 through the vent hole 13, if the drain hole 14 cannot drain the seeping water in time, causing water to accumulate at the bottom of the box, as the water reaches a predetermined height, the sealing member 2 will block the vent hole 13 under the push of the floating member 3 to prevent external water from continuing to seep into the box body 1. When the water in the box body 1 is discharged through the drain hole 14, and the floating member 3 descends, the sealing member 2 will reset under the action of the first elastic member, keeping the vent hole 13 unobstructed to ensure good ventilation and heat dissipation for the power supply box.

[0048] In this embodiment, preferably, the floating member 3 is supported on the bottom wall by the legs to avoid the floating member 3 clogging the drainage hole 14 on the bottom wall.

[0049] The box body 1 is provided with a guide part, and the floating part 3 is slidably set along the height direction of the box body 1 through the guide part, so that the floating part 3 can stably rise and fall in the vertical direction, so as to stably push the sealing part 2 to rotate.

[0050] Specifically, the floating component 3 is directly connected to the guide part to guide the lifting and lowering of the floating component 3; or, the circuit control main board 11 is slidably disposed in the box 1 along the height direction of the box 1 through the guide part, and the lower end of the circuit control main board 11 is connected to the floating component 3 to provide guidance for the smooth lifting and lowering of the control circuit control main board 11 through the guide part, thereby ensuring the stable lifting and lowering of the floating component 3.

[0051] Preferably, the guide part is a guide rod, guide groove, or guide rail arranged along the height direction of the box body 1, so that it can slide and cooperate with the floating part 3 or the circuit control main board 11 to provide guidance for the lifting and lowering movement of the floating part 3 and ensure the stable lifting and lowering of the floating part 3.

[0052] In one embodiment of this application, preferably, as shown below, Figure 1 As shown, the box body 1 includes two opposing ventilation sidewalls 12, each with ventilation holes 13 to improve ventilation and heat dissipation. Each ventilation sidewall 12 is provided with a blocking member 2, and a floating member 3 is provided with a pushing part 31 corresponding to each blocking member 2, so that when the floating member 3 rises, it can simultaneously push all the blocking members 2 to move, thereby blocking the ventilation holes on the two ventilation sidewalls 12.

[0053] In one embodiment of this application, preferably, as shown below, Figure 1 and Figure 3 As shown, the power supply box also includes a base 4, which is connected to the bottom wall of the box body 1 through a support member 42. The power supply box can be placed on a horizontal ground or other horizontal bearing surface through the base 4, and the base 4 is provided with mounting holes for threading screws so that the base 4 can be stably fixed on a horizontal ground or other horizontal bearing surface.

[0054] In this embodiment, preferably, the connection between the base 4 and the housing 1 is further provided with a shock-absorbing structure. Specifically, the base 4 is provided with a floating chamber 41, one end of the support member 42 is connected to the bottom wall of the housing 1, and the other end of the support member 42 is slidably inserted into the floating chamber 41 along the height direction of the housing 1. The end of the support member 42 located inside the housing 1 abuts against the bottom wall of the floating chamber 41 through a second elastic member 43. This allows the second elastic member 43 to buffer and dampen the power supply box when it shakes, reducing damage to the power supply box and its internal components caused by vibration.

[0055] Preferably, the lower end of the support member 42 located in the floating chamber 41 is provided with an abutment, so that the lower end of the support member 42 is T-shaped. The abutment is adapted to the floating chamber 41, so that the abutment can only move along the height direction of the box 1 in the floating chamber 41, and restricts the lower end of the support member 42 from falling out of the floating chamber 41.

[0056] Preferably, the upper end of the support member 42 is provided with a spherical positioning part 44, and the support member 42 is rotatably connected to the bottom wall of the box 1 through the spherical positioning part 44, so that the power box slides and the box 1 can rotate around the spherical positioning part 44, so as to further reduce the damage to the power box and internal electronic components caused by vibration.

[0057] In one embodiment of this application, preferably, as shown below, Figure 1 As shown, a hanging ring 5 is provided on the top wall of the power supply box, allowing the power supply box to be hung. Specifically, an opening is provided on the top wall of the box body 1, and a connecting screw 51 is provided on the hanging ring 5. The end of the connecting screw 51 away from the hanging ring 5 is inserted into the box body 1 through the opening, and a positioning nut 52 is screwed onto the end of the connecting screw 51 inside the box body 1, so that the positioning nut 52 abuts against the inner side wall of the top wall, thereby installing the hanging ring 5 on the top of the power supply box, so that the power supply box can be hung by the hanging ring 5.

[0058] This application also provides a boost-type switching power supply device, including the power supply box of any of the above embodiments.

[0059] In this embodiment, the boost-type switching power supply device includes a power supply box, and therefore the boost-type switching power supply device has all the beneficial effects of a power supply box, which will not be described in detail here.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A power supply box, characterized in that, Includes the housing, floating components, and sealing components; The box contains a circuit control motherboard for installing power supply equipment. The height of the box is set vertically. The box includes a ventilated sidewall extending vertically, and the ventilated sidewall is provided with ventilating holes. Both the floating component and the sealing component are movably disposed within the box body. The floating component is located in the lower space of the box body below the circuit control motherboard. When water accumulates at the bottom of the box body, the floating component can float up under the action of buoyancy and push the sealing component to move, causing the sealing component to block the ventilation hole.

2. The power supply box according to claim 1, characterized in that, The sealing component is disposed opposite to the ventilation sidewall, and a plug is provided at the upper end of the sealing component opposite to the ventilation hole; The sealing component is rotatably connected to the box body via a rotating shaft, the axis of which is horizontal and parallel to the ventilated sidewall. The upward movement of the sealing element can push it to rotate, causing the upper end of the sealing element to rotate towards the vent sidewall, so as to block the vent hole with the plug.

3. The power supply box according to claim 2, characterized in that, The floating component is provided with a pushing part; The lower end of the sealing component is provided with a first inclined surface, and the pushing part is provided with a second inclined surface. The first inclined surface and the second inclined surface form an inclined surface pair, so that when the floating component floats up, the upper end of the pushing part rotates towards the ventilated sidewall.

4. The power supply box according to claim 2, characterized in that, The rotating shaft is provided with a first elastic element, and the elastic force of the first elastic element can cause the upper end of the sealing element to have a tendency to move away from the ventilation sidewall.

5. The power supply box according to claim 2, characterized in that, The box body also includes two first sidewalls extending in a vertical direction. The two first sidewalls are disposed opposite to each other on both sides of the ventilated sidewall and are perpendicularly connected to the ventilated sidewall respectively. The sealing member is installed between the two first sidewalls with a predetermined assembly gap.

6. The power supply box according to claim 1, characterized in that, The bottom wall of the box is provided with a drainage hole, and the floating component is supported on the bottom wall by a support leg; The box body is equipped with a guide section; The floating component is slidably disposed in the box body in a vertical direction via the guide portion; or, the circuit control main board is slidably disposed in the box body in a vertical direction via the guide portion, and the floating component is connected to the lower end of the circuit control main board.

7. The power supply box according to claim 1, characterized in that, The box body includes two opposing ventilation sidewalls, each of which is provided with a corresponding sealing element. Each sealing element can move under the push of the floating element to block the corresponding ventilation hole.

8. The power supply box according to claim 1, characterized in that, The power supply box also includes a base and a support component; The base is located below the box body, and the base is provided with a floating chamber. The lower end of the support member is slidably inserted into the floating chamber along the height direction of the box body, and the lower end of the support member abuts against the bottom wall of the floating chamber through a second elastic member. The upper end of the support member is provided with a spherical positioning part, which is rotatably connected to the bottom wall of the box.

9. The power supply box according to claim 1, characterized in that, The power supply box also includes a hanging ring; The top wall of the box has an opening, and a connecting screw is connected to the hanging ring. The end of the connecting screw away from the hanging ring extends into the box through the opening and is screwed with a positioning nut.

10. A boost-type switching power supply device, characterized in that, The power supply box includes any one of claims 1 to 9.

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