Method for constructing exhaust channel for power source box, and power source box thereof

Abstract

The present invention relates to the field of power source apparatuses. Provided in the present invention are a method for constructing an exhaust channel for a power source box, and a power source box, wherein the method comprises: S1, providing an airtight box body; S2, providing an opening part in the box body; and S3, fixing a porous filtering member to the opening part by means of a fastener, and enclosing the opening part. Therefore, the water tightness of the box body is improved while the air permeability of the box body is maintained, and an emergency power source box with high explosion-proof performance is produced.

Description

Method for constructing an exhaust channel for a power box and power box thereof Technical Field

[0001] The present invention relates to the field of power supply equipment, and in particular to a method for constructing an exhaust passage in a power supply box. Background Art

[0002] Emergency power boxes can be used to store electronic equipment such as circuit boards and emergency power supplies for emergency evacuation and warning systems, as well as to control emergency lighting within public buildings. When powered by a battery pack, the box operates from a switching power supply when the mains is on. When the mains is off, the battery pack provides power, ensuring lighting and warnings for emergency evacuation or firefighting operations.

[0003] The explosion-proof emergency power box can be used in dangerous places where flammable gases and dust exist. It can prevent the arc, sparks and high temperature generated inside the lamp from igniting the flammable gases and dust in the surrounding environment, thereby meeting the explosion-proof requirements.

[0004] Some existing emergency power supply boxes, such as fire emergency centralized power supplies, use lead-acid batteries as emergency power sources. During the charging process, the positive electrode inside the lead-acid battery releases oxygen, and the negative electrode releases hydrogen. This is because during charging, the current passes through the sulfuric acid in the electrolyte chamber, causing the PbO2 (lead dioxide) on the positive electrode and the Pb (lead) on the negative electrode to react chemically, generating gas. These gases need to be discharged to the outside of the battery through the exhaust hole, otherwise it will cause the internal pressure of the battery to be too high, or even explode. Such an explosion inside the power supply box is even more unacceptable in the external hazardous environment. Therefore, the national standards in the field of explosion protection strictly limit the gas concentration within the equipment.

[0005] Therefore, existing explosion-proof emergency power boxes have a low waterproof rating, for example, only meeting the IP23 protection standard. The main reason is that improving the waterproof rating requires improving the overall sealing of the equipment. However, this improved sealing prevents the exhaust gas from the lead-acid battery from escaping the emergency power box, which in turn fails to meet national explosion-proof standards and is prone to explosion risk. If the overall sealing of the box is not improved, the waterproof and dustproof performance of the power box will be affected. Secondly, some internal sparks and high temperatures can easily penetrate the box and cause an explosion in the external environment.

[0006] The power box in the prior art lacks a centralized exhaust channel, and the gas discharged by the battery is allowed to diffuse everywhere in the box and escape to the outside of the box through some gaps at the corners of the box.

[0007] Therefore, in the prior art, there is an urgent need for a method for constructing an exhaust passage in a power box, which can establish an exhaust passage in the power box that is both explosion-proof and highly waterproof.

[0008] Summary of the Invention

[0009] In view of the above-mentioned defects, one of the purposes of the present invention is to provide a power box that is both airtight and breathable.

[0010] To at least solve the above technical problems, in one embodiment of the present application, a method for constructing an exhaust passage for a power box is proposed, comprising the steps of:

[0011] S1. Provide a sealed box;

[0012] S2. An opening is provided on the housing;

[0013] S3. Fix the porous filter element (or simply referred to as filter element) to the opening through a fastener, and enclose the opening.

[0014] Optionally, in some embodiments, the power box contains at least one battery capable of discharging gas; the method further comprises the steps of:

[0015] S4. Establishing a fluid channel between the interior of the battery and the opening.

[0016] Optionally, in some embodiments, step S4 further includes the steps of:

[0017] S41 covers the exhaust port of the at least one battery or the exhaust slot where the exhaust port is located with an air collecting cover;

[0018] S42: sealingly connecting the gas collecting cover to the notch of the exhaust groove or the periphery of the exhaust port;

[0019] S43 establishes a first section of the fluid channel between the opening and the exhaust hole / exhaust port.

[0020] Optionally, in some embodiments, step S43 further includes the following steps:

[0021] S431 , fluidly connecting a) the opening and b) the exhaust hole / exhaust port through the exhaust pipe;

[0022] S432: fixing the exhaust pipe using a) a fixing pipe member adapted to the first end of the exhaust pipe and / or b) a hollow air release member adapted to the second end of the exhaust pipe;

[0023] S433: Establish a second section of the fluid channel between the air outlet at the second end of the exhaust pipe and the opening.

[0024] Optionally, in some embodiments, step S433 further includes the following steps:

[0025] S4331 inserting the second end of the exhaust pipe into the hollow chamber of the air release member, thereby connecting the air outlet fluid to the porous filter member or its surface through the air release port of the air release member;

[0026] S4332: shaping the porous filter element into a hollow cylinder / hollow column, and fitting at least a portion of the air release element thereon;

[0027] S4333 , corresponding to the porous filter element, forming the opening portion protruding toward the outside of the box into any one of the following shapes: a circular cylinder, a hollow cylinder, a cavity, a tubular cavity, or a finger ring shape;

[0028] S4333: The porous filter element is fixed and sealed to the opening portion by a fastener, so that the fastener and the porous filter element cooperate to enclose / enclose the opening portion.

[0029] Optionally, in some embodiments, the fastener includes a fixing cover, and the porous filter element has a first port and a second port connected through the interior thereof; and step S4333 further includes the steps of:

[0030] The second port of the porous filter is closed by the fixing cover, and the first port is pressed and fixed on the opening end surface of the opening to seal the opening; and the method further comprises the steps of:

[0031] S5: Disposing a sealing member at one or more of the following locations: a) between the filter member and the fastener, or b) between the filter member and the opening, or c) between the fixing cover and the second port, or d) between the inner side of the opening and the gas collecting cover, or e) between the opening and the air release member; or f) between the inner wall of the opening and the outer wall of the exhaust pipe, or g) between the first end of the exhaust pipe and the exhaust hole; or h) between the first end of the exhaust pipe and the fixing member.

[0032] S6: recessing the plurality of opposite walls of the box inwardly to abut against / approach the battery assembly, the opposite walls comprising: i) a top wall, a bottom wall, and / or ii) opposite side walls;

[0033] S7. The porous filter is formed into a range where the maximum pore size / average pore size is within any of the following ranges: [0.01 μm, 300 μm], [0.1 μm, 1.5 μm], [0.01 μm, 1 μm], [1 μm, 100 μm], [150 μm, 200 μm] or [100 μm, 180 μm], [0.05 μm, 150 μm], or [0.01 μm, 200 μm];

[0034] The enclosure is watertight covering or watertight enclosure;

[0035] The sealing member is an elastic member made of an elastomeric material and formed into a gasket, a washer, or an O-ring;

[0036] The sealed joint is an airtight coupling, and the airtight coupling is an airtight and liquid-tight threaded connection or a chemical bonding; or,

[0037] The joint is a sealed joint, which is a sealed butt joint / sealed sleeve joint / sealed sleeve joint, and has liquid tightness and / or air tightness, including a threaded connection; or,

[0038] The junction is in fluid connectivity;

[0039] The communication is fluid communication and / or sealed communication;

[0040] The fluid communication is gas communication;

[0041] The air inlet is in sealed communication with the air vent, and the filter element closes the air outlet, thereby forming the fluid passage, providing a fluid-tight passage or an airtight passage between the air vent and the filter element, and providing a fluid passage in gas communication but not liquid communication between the interior and exterior of the housing through the filter element;

[0042] The filter element is more water-tight than air-tight; the filter element is air-permeable, but under the same temperature and / or pressure conditions, the filter element is not water-permeable;

[0043] The box body, except for the filter element, has a closed / sealed structure, or maintains water tightness and air tightness; the filter element is water tight but not air tight;

[0044] The one or more batteries are lead-acid batteries that can vent gases.

[0045] A second purpose of the present invention is to improve the waterproofness and air permeability of the power box.

[0046] To solve at least one of the above technical problems, in one embodiment of the present application, a power supply box with a new structure is proposed, comprising:

[0047] Box;

[0048] An opening portion passes through the box wall of the box body;

[0049] A battery assembly is housed in the box;

[0050] a porous filter element, enclosing the opening;

[0051] Fastener;

[0052] The porous filter element is mounted to the opening portion via the fastener, and the maximum pore size / average pore size of the porous filter element is within the following range: [0.01 μm, 300 μm].

[0053] Optionally, in some embodiments, the fastening body includes a fastener or a chemical bonding layer;

[0054] The fastener cooperates with the porous filter to enclose the opening;

[0055] The maximum pore size / average pore size of the porous filter element is within any of the following ranges: [0.1 μm, 1.5 μm], [0.01 μm, 1 μm], [1 μm, 100 μm], [150 μm, 200 μm] or [100 μm, 180 μm], or [0.05 μm, 150 μm], or [0.01 μm, 250 μm].

[0056] Optionally, in the power box of some embodiments, the porous filter element is fixed to the box body by the fasteners, covering / enclosing the opening.

[0057] Optionally, in some embodiments of the power box, the fastener also includes a pressing piece and / or a connecting piece; the pressing piece presses the porous filter element onto the box body; or, the connecting piece is connected to the pressing piece and the box body; the porous filter element is clamped between the pressing piece and the box body.

[0058] Optionally, the power box of some embodiments further includes fasteners.

[0059] The filter element is fixed to the box body through the fastener to cover / enclose the opening.

[0060] Optionally, in some embodiments of the power box, the fastener also includes a pressing piece and / or a connecting piece; the pressing piece presses the filter element onto the box body; or, the connecting piece is connected to the pressing piece and the box body; the filter element is clamped between the pressing piece and the box body.

[0061] Optionally, in the power box of some embodiments, the filter element includes a filter core having a porous structure or made of a porous material.

[0062] Optionally, in the power box of some embodiments, the filter element corresponds to and / or is adapted to the opening portion and is suitable for engaging with the opening portion.

[0063] Optionally, in the power supply box of some embodiments, the filter is formed as a cover body, which is adapted to the shape of the opening; and

[0064] The filter element has a hollow structure and is shaped into any of the following: a circular cylinder, a hollow cylinder, a cavity, a tubular cavity, or a ring shape; or the filter element has a first port connected to the opening.

[0065] Optionally, in some embodiments of the power box, the opening is provided with a second positioning portion arranged along the circumference thereof, adapted to / corresponding to the first port; the first port is relatively fixed and / or docked with the opening via the second positioning portion; and / or,

[0066] The filter element further defines a second port, opposite to the first port. The first and second ports are interconnected through the interior of the filter element. The fixed cover is pressed against and sealed to the second port. A first positioning portion is disposed around the inner periphery of the fixed cover, adapted to / corresponding to the second port. The fixed cover is fixed relative to the second port via the first positioning portion, sealing the second port.

[0067] Optionally, in some embodiments of the power box, the first positioning portion is a groove or a step, circumferentially arranged on the inner side of the fixed cover, and fixes the second port; and / or,

[0068] The second positioning portion is a groove or a step, arranged along the end surface of the opening, and fixed to the first port.

[0069] Optionally, the power box of some embodiments further includes an air release member having a hollow structure with an air release hole and a mounting opening formed thereon;

[0070] The interior of the air vent is connected to the outside through the air vent hole; or, the air vent hole and the mounting port are connected through the internal fluid of the air vent; the mounting port engages with the opening and is connected to the filter element or its inner surface fluid through the interior of the air vent and the air vent hole.

[0071] Optionally, in some embodiments of the power box, the opening is formed to protrude toward the outside of the box body; the mounting port is opened at a first end of the air release member, and the first end is threadedly connected to the opening;

[0072] The vent hole is opened at the second end of the vent member and is i) connected to the fluid outside the opening portion, or ii) exposed outside the opening portion; the pressing member includes a fixing cover, and the connecting member is a screw; the fixing cover presses the filter member to the opening portion; the screw passes through the fixing cover and is threadedly connected to the second end of the vent member.

[0073] Optionally, in the power supply box of some embodiments, the exhaust pipe is fluidically connected to the exhaust hole and the air release member, or fluidically connected to the interior of the battery assembly and the air release member;

[0074] The first end and the second end of the exhaust pipe define an air inlet and an air outlet, respectively; the battery assembly has an exhaust hole; the air inlet is connected to the exhaust hole; the mounting port is sleeved on the second end of the exhaust pipe, and the air outlet is fluidically connected to the air release hole; or, the second end of the exhaust pipe is inserted into the interior of the air release member from the mounting port, and the air outlet passes through the interior of the air release member and is fluidically connected to the air release hole.

[0075] Optionally, in some embodiments of the power box, A) the battery assembly further includes a shell, and the exhaust hole is provided on the shell; or, B) the battery assembly further includes a shell, a gas collecting cover, and one or more lead-acid batteries, wherein each lead-acid battery has an exhaust port; the shell is partially concave to form an exhaust groove, and the exhaust ports provided on the one or more lead-acid batteries are all located in the exhaust groove; the gas collecting cover covers the exhaust groove and is connected / sealed to its groove, and the exhaust hole is provided on the gas collecting cover.

[0076] Optionally, in the power box of some embodiments, the first end of the air release member extends from the opening into the box body and engages with the second end of the exhaust pipe; the second end of the air release member / the air release hole is exposed outside the opening;

[0077] The exhaust pipe is a flexible pipe that flexibly connects the exhaust hole and the installation port; the first end of the exhaust pipe is connected to the exhaust hole.

[0078] Optionally, the power box of some embodiments further includes a sealing member disposed between the opening and the air release member;

[0079] The first end of the degassing member extends along the inner wall of the opening toward the periphery of the opening, and the extension is fixed to the inner side of the opening through the sealing member.

[0080] Optionally, in some embodiments of the power box, the second end of the venting member is integrally connected to the middle portion of the inner side of the fixed cover, extends substantially perpendicular to the fixed cover toward the opening, and the first end of the venting member is docked / fitted / sleeved / threadedly connected to the opening; the first end of the venting member extends into the opening / the box body, and the mounting port is aligned with or fluidically connected to the exhaust hole;

[0081] The protruding space of the opening is filled with a sealant, which is located between a) the inner side of the opening and the gas collecting cover, or b) the inner side of the opening and the shell. The sealant surrounds i) the opening and ii) the exhaust hole.

[0082] Optionally, the power box in some embodiments further includes a sealing member filled in the opening and located between a) the inner wall of the opening and b) the outer wall of the exhaust pipe.

[0083] Optionally, in the power box of some embodiments, the first end of the exhaust pipe is fixed to the gas collecting cover or the outer shell by welding or chemical bonding, and the air inlet of the exhaust pipe is connected / sealed to the exhaust hole.

[0084] Optionally, the power box of some embodiments further includes: a fastening member and a sealing member;

[0085] The first end of the exhaust pipe extends into the box body and is connected to the exhaust hole through a fastening member;

[0086] The sealing member is arranged between the first end of the exhaust pipe and the exhaust hole, surrounding the exhaust hole.

[0087] Optionally, in the power box of some embodiments, the fastening member further comprises:

[0088] A fixing member having a through hole and fluidically connected to the exhaust hole; the fixing member is fixed to the gas collecting cover or the housing;

[0089] A fixed pipe member is respectively connected to the fixing member and the first end of the exhaust pipe; the first end of the exhaust pipe and the fixing member clamp the sealing member; the sealing member surrounds the through hole; and the air inlet is fluidically connected to the through hole.

[0090] Optionally, in the power box of some embodiments, the fixed pipe component is provided with a first opening and a second opening relative to each other, which respectively fit over the fixing component and the first end of the exhaust pipe to fasten the two together; the first opening and the second opening are connected through the interior of the fixed pipe component.

[0091] Optionally, in some embodiments of the power supply box, the first end of the exhaust pipe extends into the second opening; the second opening contracts inwardly, or the first end of the exhaust pipe extends laterally outward / toward the periphery, thereby being engaged with the second opening;

[0092] The pipe fixing member is threadedly connected to the fixing member so as to press the first end of the exhaust pipe toward the fixing member through the second opening.

[0093] Optionally, the power box in some embodiments further includes a fluid channel connecting the interior of the battery with the opening;

[0094] The covering / enclosure is a watertight covering or watertight enclosure; the joint / joint between the porous body and the fastener, and the joint / joint between the porous body and the opening are watertight and / or airtight and / or sealed. Alternatively, the joint / joint between the filter element and the fastener, and the joint / joint between the filter element and the opening are watertight and / or airtight and / or sealed.

[0095] A screw passes through the fixing cover from the outside of the box, extends toward the opening, and is threadedly connected to the screw hole on the degassing member.

[0096] The sealing member is an elastic member made of an elastomeric material and formed into a gasket, a washer, or an O-ring;

[0097] a sealing member filled in the opening and located between two or three of a) the inner wall of the opening, b) the outer wall of the exhaust pipe, and c) the second end of the exhaust pipe;

[0098] Optionally, the porous body or filter element can be implemented as a porous filter element.

[0099] The gas collecting cover seals and covers the exhaust port, and a sealant is filled between the gas collecting cover and the shell it covers;

[0100] The sealed joint is an airtight coupling, and the airtight coupling is an airtight and liquid-tight threaded connection or a chemical bonding; or,

[0101] The joint is a sealed joint, which is a sealed butt joint / sealed sleeve joint / sealed sleeve joint, and is liquid-tight and / or gas-tight, including a threaded connection; alternatively, the joint is fluid-connected, and the connection is fluid-connected and / or sealed, and the fluid connection is gas-connected. For example, fluid connection between components A and B means that the interiors of the two components can maintain a fluid connection, or that fluid can flow from A into B. Sealed connection between components A and B means that the joint / joint between A and B is sealed / hermetically sealed, preventing fluid from escaping through the joint / joint.

[0102] The air inlet is in sealed communication with the air vent, and the filter element closes the air outlet, thereby forming the fluid passage, providing a fluid-tight passage or an airtight passage between the air vent and the filter element, and providing a fluid passage in gas communication but not liquid communication between the interior and exterior of the housing through the filter element;

[0103] The filter element is more water-tight than air-tight; the filter element is air-permeable, but under the same temperature and / or pressure conditions, the filter element is not water-permeable; except for the filter element, the box body has a closed / sealed structure, or maintains water-tightness and air-tightness; the filter element is water-tight but not air-tight; the transverse direction is perpendicular to the axial direction / length direction / extension direction of the exhaust pipe; multiple opposite walls of the box body are recessed inward to abut against / approach the battery assembly, and the opposite walls include: i) a top wall, a bottom wall, and / or, ii) opposite side walls.

[0104] In addition, the phrase "the box body, except for the filter element, has a sealed / sealed structure" here means that all parts of the box body, except for the filter element, have sealing properties and capabilities, rather than always maintaining a sealed state. For example, the box body can also have other larger openings and corresponding covers to facilitate manual maintenance and repair operations inside the box. However, the space between this opening and the cover is The sealing ability is good. Once the cover is closed on the opening, water and gas cannot penetrate into the box through the joint / joint between the cover and the opening.

[0105] Emergency lighting, as an important safety facility, is powered by a connected host, which is an emergency lighting controller, emergency power supply box, or emergency distribution box. Changes in the output power of the host may cause electrical appliances to flicker, which will be detrimental to fire emergency lighting.

[0106] In order to solve this problem, in some embodiments of the present application, an energy storage device is connected inside the host or on the light source board of the fire emergency lighting fixture powered by the host as an electric energy buffer unit, so that when the power supply provided by the host fluctuates, the electric energy supply to the light source board in the fire emergency lighting fixture can be kept stable, so that the luminous power of the light source board is basically constant.

[0107] Based on this concept, the emergency lighting controller, emergency lighting centralized power supply, emergency lighting power distribution device, or emergency lighting distribution box in some embodiments of the present application also includes the above-mentioned energy storage device. The emergency power supply box in any embodiment of the present application may also include: a power supply board and an energy storage device, the energy storage device being provided on the power supply board, electrically connected to the light source board, and used to externally connect to the power from the battery assembly; the energy storage device further includes:

[0108] a plurality of electricity storage components, each of which includes an anode and a cathode;

[0109] a second power storage assembly; and

[0110] One or more switch units, wherein the one or more switch units include at least two or more poles, and wherein:

[0111] In the high-level mode of the one or more switching units, the first power storage component and the second power storage component are coupled in series, and

[0112] In the low-level mode of the one or more switching units, the first energy storage component and the second energy storage component are coupled in parallel.

[0113] Optionally, in one embodiment of the present application:

[0114] The one or more switch units include a first single-pole double-throw switch and a second single-pole double-throw (also known as single-pole double-throw) switch;

[0115] In the high level mode, the first single-pole double-throw switch and the second single-pole double-throw switch are both in the first switch position, thereby connecting the anode of the first storage assembly to the cathode of the second storage assembly; and

[0116] In low-level mode:

[0117] The first single-pole double-throw switch is in a second switch position, thereby connecting the cathode of the first electrical storage assembly to the cathode of the second electrical storage assembly; and

[0118] The second single-pole double-throw switch is in a second switch position, thereby connecting the anode of the first energy storage assembly to the anode of the second energy storage assembly.

[0119] Optionally, in one embodiment of the present application:

[0120] The one or more switch units include two single-pole single-throw switches;

[0121] In high-level mode:

[0122] The first of the two single-pole, single-throw switches is in the open position, and

[0123] a second of the two single-pole, single-throw switches in an engaged, energized position, thereby connecting the anode of the first electrical storage assembly to the cathode of the second electrical storage assembly; and

[0124] In low-level mode:

[0125] A first of the two single-pole, single-throw switches is in an engaged, energized position, thereby connecting the cathode of the first electrical storage assembly to the cathode of the second electrical storage assembly, and

[0126] The second of the two single-pole, single-throw switches is in the open position.

[0127] Optionally, in one embodiment of the present application, the energy storage device further includes at least one charging unit switch, and the at least one charging unit switch is configured to connect the first storage component and the second storage component to the charging unit and disconnect them from the charging unit.

[0128] Optionally, in a power supply box of an embodiment of the present application, in high level mode:

[0129] The anode of the light source panel is connected to the anode of the first power storage assembly; and

[0130] The cathode of the light source panel is connected to the cathode of the first power storage assembly.

[0131] Optionally, in one embodiment of the present application, the energy storage device further includes at least one load switch, and the at least one load switch includes at least two or more poles, wherein, in the high level mode:

[0132] When the at least one load switch is set to one or more first switch positions:

[0133] The anode of the light source panel is connected to the anode of the first power storage assembly, and

[0134] The cathode of the light source board is connected to the cathode of the first power storage assembly; and when the at least one load switch is set to one or more second switch positions:

[0135] The anode of the light source panel is connected to the anode of the second power storage assembly, and

[0136] The cathode of the light source panel is connected to the cathode of the first power storage assembly.

[0137] Optionally, in one embodiment of the present application, a control circuit is further included, which is configured to set the position of the at least one load switch according to the state parameters of at least one of the first storage component and the second storage component when in high-level mode.

[0138] Optionally, in one embodiment of the present application:

[0139] In the high-level mode, the energy storage device is configured to receive a charging voltage of 220 volts or 240 volts or more but not less than 800 volts.

[0140] Optionally, in one embodiment of the present application, in the charging configuration, the energy storage device is configured to provide a voltage of 48 volts or above 36 volts to the fire emergency lighting fixture or the light source panel.

[0141] Optionally, the emergency power supply box of an embodiment of the present application further includes an energy storage control unit, which is configured to select between a low-level mode and a high-level mode.

[0142] In these corresponding embodiments, the electrical connection between the energy storage device and the external power supply is dynamically adjusted in response to changes in the external power supply voltage, and / or the electrical connection between the energy storage device and the light source board is dynamically adjusted in response to changes in the external power supply voltage. Thus, through the central energy storage device, a stable power feed channel is established between an external power source such as a battery and the light source board, thereby maintaining a substantially constant optical power of the light source board in the fire emergency lighting fixture.

[0143] For example, in some embodiments, a) the electrical connection relationship between the energy storage device and the light source board is dynamically switched between series and parallel through the coordinated operation of the switching unit, or b) the electrical connection relationship between the entire energy storage device and the external power supply is dynamically switched between series and parallel through the coordinated operation of the switching unit, which enables the feeding channel of "external power supply→energy storage device" and / or the feeding channel of "energy storage device→light source board" to dynamically adapt to the voltage changes of the external power supply, thereby keeping the electric energy obtained by the light source board of the terminal stable.

[0144]

Technical Effect

[0145] Because the filter / porous body encloses the opening in the housing, and its pore size is small, under normal ambient pressure, liquids cannot pass through due to factors such as surface tension, making it watertight. However, gases can pass through the filter / porous body. Therefore, the interior of the housing is in gaseous communication with the exterior through the filter / porous body, but there is no liquid communication between the exterior and the interior. This ensures that all areas of the housing, except the filter / porous body, remain both watertight and airtight, while the filter is only watertight, not airtight. This housing structure ensures that gases within the housing can, and only can, escape through the filter / porous body. Furthermore, liquids and dust from the exterior cannot enter the housing. This ensures that the power supply box is both watertight and breathable. In other words, it resists water ingress and allows for easier ventilation.

[0146] Furthermore, because the enclosure is tightly sealed, arcing and other factors within the enclosure cannot pass through any part of the enclosure, including the filter element, and affect the external environment. The enclosure as a whole is impermeable to water, dust, and other substances, while only the porous filter element allows air to pass through. This ensures that this type of power supply box meets the national IP66 and IP67 protection standards.

[0147] In this way, while the power box is not easily flooded, the pressure of gases inside the box, such as those discharged by batteries, can be continuously released, making it less likely for the power box to explode due to internal pressure buildup. The porous structure of the filter element has a maximum pore size / average pore size within the following ranges: [0.01μm, 250μm], [0.05μm, 150μm], or [0.01μm, 200μm], [0.1μm, 1.5μm], [0.01μm, 1μm], [1μm, 100μm], [150μm, 200μm], or [100μm, 180μm]. Smaller pore sizes increase watertightness, but due to factors such as the size of gas molecules and gas density, filters / porous bodies with these pore sizes generally do not prevent gas inside the box from passing through the filter element and being discharged outside the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0148] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0149] FIG1A is a schematic structural diagram of a power supply box according to an embodiment of the present invention;

[0150] FIG1B is a schematic structural diagram of a power supply box according to another embodiment of the present invention;

[0151] FIG2A is a schematic diagram of the three-dimensional structure of a power supply box according to an embodiment of the present invention;

[0152] FIG2B is a perspective exploded schematic diagram of the power supply box in FIG2A ;

[0153] FIG2C is a perspective exploded schematic diagram of the box body and battery assembly in the power box in FIG2A ;

[0154] FIG2D is an exploded perspective view of the battery assembly and one of the venting assemblies in FIG2C ;

[0155] FIG2E is an enlarged exploded perspective view of the deflating assembly in FIG2D ;

[0156] FIG2F is a partial cross-sectional view of the power box along the section line in FIG2A ;

[0157] FIG2G is an enlarged schematic diagram of the deflating member in FIG2E ;

[0158] FIG3A is a schematic structural diagram of a power supply box with its cover opened according to an embodiment of the present invention;

[0159] FIG3B is a schematic structural diagram of the battery assembly and the venting assembly thereon in FIG3A ;

[0160] FIG3C is a perspective exploded schematic diagram of the power supply box in FIG3A ;

[0161] FIG3D is a partially enlarged exploded perspective view of the deflating assembly in FIG3A ;

[0162] FIG3E is a partial cross-sectional view of the power box along the diameter of the bleed assembly in FIG3A ;

[0163] FIG4A is a schematic diagram of the three-dimensional structure of a power supply box according to an embodiment of the present invention;

[0164] FIG4B is a perspective exploded schematic diagram of the power box in FIG4A ;

[0165] FIG4C is a partial cross-sectional view of the power box along the section line in FIG4A ;

[0166] FIG5A is a schematic diagram of the three-dimensional structure of a power supply box according to an embodiment of the present invention;

[0167] FIG5B is a perspective exploded schematic diagram of the power supply box in FIG5A ;

[0168] FIG5C is a further exploded perspective view of the power box in FIG5B ;

[0169] FIG5D is a partial enlarged view of the power box cover in FIG5B ;

[0170] FIG5E is an enlarged exploded perspective view of the deflating assembly in FIG5B ;

[0171] FIG5F is a partial cross-sectional view of the power box along the section line in FIG5A ;

[0172] FIG6A is a schematic diagram of the three-dimensional structure of a power supply box according to an embodiment of the present invention;

[0173] FIG6B is a perspective exploded schematic diagram of the power box in FIG6A ;

[0174] FIG6C is an enlarged exploded perspective view of the deflating assembly in FIG6B ;

[0175] FIG6D is an enlarged structural schematic diagram of the deflating member in FIG6C ;

[0176] FIG6E is a perspective exploded schematic diagram of a portion of the battery assembly in FIG6B ;

[0177] FIG6F is a partial enlarged schematic diagram of the gas collecting cover and other components in FIG6E;

[0178] FIG6G is a partial cross-sectional view of the power supply box taken along a direction perpendicular to the section line in FIG5A ;

[0179] FIG6H is a schematic cross-sectional view of the power supply box taken along a direction perpendicular to the section line in FIG5A ;

[0180] FIG7 is a schematic flow chart of a method for constructing an exhaust passage for a power box according to one embodiment of the present invention;

[0181] FIG8 is a schematic flow chart of a method for constructing an exhaust passage for a power supply box according to another embodiment of the present invention;

[0182] FIG9 shows a schematic diagram of a feeding topology between an energy storage device in a power supply box and a light source board in an external lamp according to an embodiment of the present invention;

[0183] In the description of the drawings, the same, similar or corresponding reference numerals represent the same, similar or corresponding units, elements or functions. DETAILED DESCRIPTION

[0184] Reference will now be made in detail to the embodiments, examples of which are illustrated in the accompanying drawings. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the various described embodiments. However, it will be apparent to one of ordinary skill in the art that the various described embodiments may be practiced without these specific details. In other cases, well-known methods, processes, components, circuits, and networks have not been described in detail so as not to unnecessarily obscure various aspects of the embodiments.

[0185] The terms used in the description of the various embodiments herein are for the purpose of describing specific embodiments only and are not intended to be limiting. As used in the description of the various embodiments and in the appended claims, the singular forms "a", "an" and "the" are intended to also include the plural forms, unless the context clearly indicates otherwise. It will also be understood that the terms "and / or" used herein refer to and encompass any and all possible combinations of one or more of the items listed in association. It will also be understood that the terms "includes", "including", "comprises" and / or "comprising" when used in this specification specify the presence of stated features, integers, steps, operations, elements and / or parts, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, parts and / or their groupings.

[0186] Depending on the context, the word "by" as used in this application can be interpreted as "by", "by virtue of" or "by means of". Depending on the context, the words "if" and "if" as used herein can be interpreted as "at the time of" or "when" or "in response to determination" or "in response to detection". Similarly, depending on the context, "when" or "when" in some embodiments can also be interpreted as conditional assumptions such as "if" and "such as". Similarly, depending on the context, the phrases "if (stated condition or event)", "if it is determined" or "if (stated condition or event) is detected" can be interpreted as "when determined" or "in response to determination" or "when detecting (stated condition or event)". Similarly, depending on the context, the phrases "in response to (stated condition or event)" in some embodiments can be interpreted as "in response to detecting (stated condition or event)" or "in response to detecting (stated condition or event)".

[0187] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are used only to distinguish the same type of information from each other. For example, first may also be referred to as second, and vice versa, without departing from the scope of this disclosure. Depending on the context, the word "if" as used herein may be interpreted as "when..." or "when..." or "in response to determining."

[0188] The present application is further described below by way of examples, but the present application is not limited to the scope of the examples.

[0189] In the embodiment shown in FIG7 and FIG8, a method for constructing an exhaust duct for a power supply box is proposed. The method for constructing the exhaust duct is described below with reference to FIG1A to FIG6H. The method for constructing the exhaust duct includes the following steps:

[0190] S1. Provide a sealed box Ca23;

[0191] S2 opens an opening Ven1 on the box Ca23;

[0192] S3. Fix the porous filter F23 to the opening Ven1 using the fasteners Na23, D23, and G231 to enclose the opening Ven1.

[0193] Through steps S1 and S2, an opening is created in a completely sealed case Ca23. A porous filter F23 is then secured to this opening, forming an enclosure around the opening. However, due to the small pore size of the porous filter, liquids cannot pass through it under normal ambient pressure due to factors such as the surface tension of the liquid, resulting in a watertight structure. However, gases can pass through the porous filter. Therefore, the interior of case Ca23 can establish gaseous communication with the exterior of case Ca23 through the porous filter, but liquid communication between the exterior and interior of the case is not possible. Thus, the entire case, except for the porous filter, remains both watertight and airtight, while the porous filter F23 is only watertight, not airtight. This case structure ensures that gas within the case can, and only can, be discharged from case Ca23 through the porous filter. Furthermore, liquids outside of case Ca23 cannot enter the case. This ensures both a high level of watertightness and high air permeability. In other words, it resists water ingress and allows for air to flow easily. The box as a whole is impermeable to water, dust, and other substances, while only the porous filter element allows air to escape. This ensures that power boxes with this exhaust duct meet the national IP66 and IP67 protection standards.

[0194] Optionally, in some embodiments, at least one battery B23 is placed in the power box, which can discharge gas; the method further includes the steps of:

[0195] S4. Construct a fluid channel CH23 between the interior of the battery B23 and the opening Ven1. This prevents gas escaping from the battery assembly Ba23 from dispersing within the housing Ca23. Instead, it is directed by the exhaust pipe Con232 to the opening Ven1, where it is concentrated and discharged out of the housing through the porous filter F23 enclosing the opening Ven1.

[0196] Optionally, in some embodiments, step S4 further includes the steps of:

[0197] S41 covers the exhaust port Pai23, Pai23' of at least one battery B23 or the exhaust slot SL23 where the exhaust port is located through the gas collecting cover G232, G232';

[0198] S42: Sealingly connecting the gas collecting covers G232 and G232' to the notches of the exhaust slots SL23 or the peripheries of the exhaust ports Pai23 and Pai23';

[0199] S43 constructs the first section of the fluid channel CH23 between the opening Ven1 and the exhaust hole Pai23 / exhaust port Pai23'.

[0200] Optionally, in some embodiments, step S43 further includes the steps of:

[0201] S431 fluidly connects a) the opening Ven1 and b) the exhaust hole Pai23 / exhaust port Pai23' through the exhaust pipe Con232;

[0202] S432: Fix the exhaust pipe Con232 using a) a fixing pipe member G391 adapted to the first end TC1 of the exhaust pipe Con232 and / or b) a hollow degassing member V23 adapted to the second end TC2 of the exhaust pipe Con232;

[0203] S433 constructs the second section of the fluid channel CH23 between the outlet OU23 of the second end TC2 of the exhaust pipe Con232 and the opening Ven1.

[0204] Optionally, in some embodiments, step S433 further includes the steps of:

[0205] S4331 Insert the second end TC23 of the exhaust pipe Con232 into the hollow chamber of the air release member V23, thereby connecting the air outlet OU23 to the porous filter F23 or its surface through the air release port Fa23 of the air release member V23;

[0206] S4332: The porous filter element F23 is formed into a hollow cylinder / cylindrical body, and is fitted with at least a portion of the air release element V23;

[0207] S4333 , corresponding to the porous filter element F23 , the opening Ven1 is convexly formed toward the outside of the box Ca23 into any of the following shapes: a circular cylinder, a hollow cylinder, a cavity, a tubular cavity, or a finger ring shape;

[0208] S4333 fixes and seals the porous filter element F23 to the opening portion Ven1 through fasteners Na23, D23, and G231, so that the fasteners Na23, D23, and G231 cooperate with the porous filter element F23 to enclose / enclose the opening portion Ven1.

[0209] Optionally, in some embodiments, the fastener includes a fixing cover G231, and the porous filter element F23 has a first port TER1 and a second port TER2 communicated through the interior thereof; step S4333 further includes the steps of:

[0210] The second port TER2 of the porous filter element F23 is closed by fixing the cover G231, and the first port TER1 is pressed and fixed on the opening end surface of the opening portion Ven1 to seal the opening portion Ven1; and the method further comprises the steps of:

[0211] S5 arranges the sealing members D232', D232, D233', D233 at one or more of the following locations: a) between the filter member F23 and the fastener, or b) between the filter member F23 and the opening portion Ven1, or c) between the fixing cover G231 and the second port TER2, or d) between the inner side of the opening portion Ven1 and the gas collecting cover G232, G232', or e) between the opening portion Ven1 and the air venting member V23; or f) between the inner wall of the opening portion Ven1 and the outer wall of the exhaust pipe, or g) between the first end TC1 of the exhaust pipe Con232 and the exhaust hole Pai23; h) between the first end TC1 of the exhaust pipe Con232 and the fixed pipe member G391.

[0212] The multiple relative walls of the box Ca23 described in S6 are recessed inward to abut / approach the battery B23 assembly, and the relative walls include: i) a top wall, a bottom wall, and / or, ii) relative side walls, as shown in Figure 6B, etc.

[0213] S7. The porous filter element F23 is formed such that the maximum pore size / average pore size is within any of the following intervals: [0.01 μm, 300 μm], [0.1 μm, 1.5 μm], [0.01 μm, 1 μm], [1 μm, 100 μm], [150 μm, 200 μm] or [100 μm, 180 μm], [0.05 μm, 150 μm], or [0.01 μm, 200 μm];

[0214] Enclosure means watertight covering or watertight enclosure;

[0215] The sealing members D232', D232, D233', and D233 are elastic members made of an elastomeric material and formed into gaskets, washers, and O-rings;

[0216] The sealing joint is a gas-tight coupling, which is a gas-tight and liquid-tight threaded connection or chemical bonding; or,

[0217] The joint is a sealed joint, which is a sealed butt joint / sealed sleeve joint / sealed sleeve joint, which is liquid-tight and / or gas-tight, including a threaded connection; or

[0218] The junction has fluid connectivity;

[0219] The communication is fluid communication and / or sealed communication;

[0220] The fluid communication is gas communication;

[0221] The air inlet I23 is in sealed communication with the air outlet Pai23, and the filter F23 blocks the air outlet, thereby forming a fluid channel CH23. This provides a fluid-tight or airtight channel between the air outlet Pai23 and the filter F23, and also provides a fluid channel between the interior and exterior of the housing Ca23, allowing gaseous communication but no liquid communication, through the filter F23.

[0222] The filter element F23 is more water-tight than air-tight; the filter element F23 is air-permeable, but under the same temperature and / or pressure conditions, the filter element F23 is not water-permeable;

[0223] Except for the filter element F23, all parts of the housing Ca23 have a closed / sealed structure, or maintain watertightness and airtightness; the filter element F23 is watertight but not airtight;

[0224] One or more batteries B23 are lead-acid batteries B23 that can discharge gas.

[0225] In another embodiment, a power supply box with a new structure is also proposed, including:

[0226] Box Ca23;

[0227] An opening Ven1 passes through a wall of the box body Ca23;

[0228] Battery assembly B23, housed in case Ca23;

[0229] A porous filter F23 encapsulates the opening Ven1;

[0230] The porous filter F23 is attached to the opening Ven1 by a fastener. The maximum pore size / average pore size of the porous filter F23 is within the following range: [0.01 μm, 300 μm].

[0231] Optionally, in some embodiments, the fastener includes fasteners Na23, D23, G231, or a chemical adhesive layer. Thus, in some embodiments, an explicit fastener secures the porous filter element F23 to the opening, with the fasteners Na23, D23, and G231 cooperating with the porous filter element F23 to enclose the opening Ven1. In other embodiments, the porous filter element F23 is secured to the opening Ven1 using chemical means such as gluing. In this case, the porous filter element F23 can independently secure the opening Ven1. This chemical adhesive layer also serves as an implicit fastening method.

[0232] The maximum pore size / average pore size of the porous filter element F23 is within any of the following ranges: [0.1μm, 1.5μm], [0.01μm, 1μm], [1μm, 100μm], [150μm, 200μm] or [100μm, 180μm], or [0.05μm, 150μm], or [0.01μm, 250μm].

[0233] It should be noted that the encapsulation structure and enclosure structure of the filter element F23 for the opening portion Ven1 are not limited to the filter element F23 directly blocking the opening of the opening portion Ven1, nor are they limited to the need for direct physical contact between the filter element F23 and the opening portion Ven1. For example, the filter element F23 can also maintain a certain distance from the opening to form an enclosure structure. For example, in space, the filter element F23 may not be directly opposite to or aligned with the opening of the opening portion. In some embodiments, the filter element F23 can cooperate with other fasteners to form an encapsulation structure for the opening portion Ven1. In other words, the filter element F23 can be installed to the opening portion Ven1 through fasteners; the filter element F23 cooperates with the fasteners to enclose the opening portion Ven1. These deformed structures all belong to the enclosing and encapsulating structure of the filter element for the opening portion.

[0234] In this embodiment, the gas within the housing is discharged through a porous filter element. The porous filter element is provided with multiple micropores. Taking advantage of the different densities of air and water, as well as the surface tension of water, air can be discharged from the interior of the housing to the exterior of the housing Ba23 at the porous filter element, while water outside the housing cannot enter the interior of the housing. Furthermore, because the operation of equipment such as the lead-acid battery within the housing generates gas and heat, gas is typically discharged from the interior of the housing to the exterior, rather than the reverse. This gas discharge and airflow from the inside out through the porous filter element prevents dust, water, and the like from adhering to the outer surface of the porous body, making it even more difficult for them to penetrate the porous filter element and, consequently, enter the interior of the housing.

[0235] The communication between the first end or air inlet of the exhaust pipe and the exhaust hole / exhaust port of the battery assembly is not limited to a direct connection between the two to form a fluid connection. Fluid communication can also be formed by indirect connection to the interior of the battery assembly through other components such as a gas collecting cover and exhaust grooves. This directs the gas generated within the battery assembly to the surface of the porous filter element and then out of the casing through the porous filter element. This allows the gas inside the casing Ca23 to be discharged to the outside, preventing external dust, foreign matter, and liquid from entering the casing.

[0236] Furthermore, the gas generated by the lead-acid battery is discharged outward through the porous filter element, and the porous filter element can prevent water from entering the interior of the equipment. Combined with the sealing of other positions on the box body, the box can achieve a high waterproof level while meeting the national explosion-proof standards, avoiding the explosion caused by excessive gas concentration in the power box equipment, and improving the adaptability of the power box to the application site.

[0237] Other embodiments will be described in more detail below with reference to FIG. 3 to FIG. 8 and other drawings.

[0238] Optionally, the power box in some embodiments further includes fasteners Na23, D23, and G231.

[0239] The filter element F23 is secured to the housing Ca23 by fasteners Na23, D23, and G231. The filter element F23, or rather, the filter element F23 and the fasteners, cooperate to cover / engage the opening Ven1. This prevents gas within the housing from escaping through the fasteners or through the gaps between the filter element F23 and the fasteners (e.g., gaps). Instead, gas can only be discharged through the filter element F23 to the exterior of the housing Ca23.

[0240] Of course, in other embodiments, fasteners may not be provided, and the filter element F23 may be fixed to the box body by chemical bonding or the like, and a closed structure or an encapsulated structure may be formed on the opening.

[0241] Optionally, in some embodiments of the power supply box, the fasteners further include a compression member G231 and / or a connector Na23; the compression member G231 presses the filter element F23 onto the box Ca23. Alternatively, the connector Na23 connects the compression member G231 and the box Ca23; the filter element F23 is clamped between the compression member G231 and the box Ca23.

[0242] Optionally, in the power box of some embodiments, the filter element F23 includes a filter core having a porous structure or being made of porous ceramics, metals, or other materials, and may be formed by pressing together nanomaterials with a porous structure.

[0243] In the porous structure of the filter element, the maximum pore size / average pore size is within any of the following ranges: [0.1 μm, 1.5 μm], [0.01 μm, 1 μm], [1 μm, 100 μm], [150 μm, 200 μm] or [100 μm, 180 μm].

[0244] Optionally, in some embodiments, the filter element F23 corresponds to and / or is adapted to the opening portion Ven1 and is suitable for engaging with the opening portion Ven1.

[0245] Optionally, in the power box of some embodiments, the filter element F23 is formed as a cover body G231, which is adapted to the shape of the opening portion Ven1.

[0246] Optionally, in some embodiments of the power supply box, the filter element F23 has a hollow structure, shaped as any of the following: a circular cylinder, a hollow cylinder, a cavity, a tubular cavity, or a ring. For the tubular cavity, the cross-section of the middle section can be square, circular, elliptical, etc. The filter element F23 also defines a first port TER1 that interfaces with the opening Ven1.

[0247] Optionally, in the power box of some embodiments, the opening portion Ven1 is circumferentially provided with a second positioning portion Ste23 that matches / corresponds to the first port TER1; the first port TER1 is relatively fixed and / or docked with the opening portion Ven1 through the second positioning portion Ste23.

[0248] Optionally, in the power box of some embodiments, the filter element F23 further opens a second port TER2 opposite to the first port TER1, and the fixed cover G231 is pressed onto the second port TER2 and closes the second port TER2; a first positioning portion AO23 is arranged around the inner side of the fixed cover G231, which is adapted / corresponding to the second port TER2; the fixed cover is fixed relative to the second port TER2 through the first positioning portion AO23 and closes the second port TER2.

[0249] Optionally, in the power box of some embodiments, the first positioning portion AO23 is a groove or a step, which is circumferentially arranged on the inner side of the fixed cover to secure the second port.

[0250] Optionally, in the power box of some embodiments, the second positioning portion Ste23 is a groove or a step, arranged along the end surface of the opening portion Ven1, and fixes the first port TER1.

[0251] The provision of the first and second positioning portions AO23 and Ste23 prevents lateral movement of the porous filter element F23. Furthermore, when these positioning portions are implemented as grooves or steps, a tortuous interface is formed between the filter element and the opening, enhancing watertightness. Even without a rubber gasket between the two, water is unlikely to pass through this interface, such as between the opening Ven1 and the fixed cover, and enter the interior of the housing.

[0252] Optionally, the power box of some embodiments further includes an air release member V23 having a hollow structure with an air release hole Fa23 and a mounting opening Mou23 formed thereon;

[0253] The interior of the vent member V23 is connected to the exterior via the vent hole Fa23. When the filter element F23 (or filter element) is formed into a hollow cylindrical shape, for example, the interior of the vent member V23 is in fluid communication with the interior chamber of the filter element F23. Gas within the housing then escapes through the cavity wall of the filter element F23 to the exterior of the housing. In this configuration, the vent hole Fa23 and the mounting port Mou23 are preferably fluidically connected via the interior of the vent member V23, allowing gas within the housing to enter the vent member V23 through the mounting port and then escape through the vent hole Fa23.

[0254] Optionally, in the power box of some embodiments, the mounting port engages the opening portion Ven1 and is in fluid communication with the filter element F23 or its inner surface through the interior of the air vent member V23 and the air vent hole.

[0255] Optionally, in some embodiments of the power supply box, the opening Ven1 is formed to protrude outside the box body Ca23, as shown in Figures 3 to 8. The mounting port Mou23 is formed at the first end T1 of the air release member V23, and the first end T1 is threadedly connected to the opening Ven1;

[0256] The vent hole is formed at the second end T2 of the vent member V23 and is i) in fluid communication with the outside of the opening Ven1 or ii) exposed to the outside of the opening Ven1. The pressing member includes a fixing cover G231 and a connecting member is a screw Na23.

[0257] The cover G231 is fixed and the filter element F23 is pressed and fixed to the opening Ven1.

[0258] It should be noted that in some embodiments, screws and other connecting parts can be directly connected to the box body. As an alternative, screws and other connecting parts can also be further connected to the box body through intermediate parts such as the bleeder V23, so that the fixed cover is finally directly or indirectly connected to the box body, so that the filter element located between the fixed cover and the box body will also be fixed relative to the box body to form a stable mechanical structure.

[0259] Screw Na23 passes through fixed cover G231 and is threadedly connected to the second end T2 of the venting member V23. This connection / assembly structure, particularly in conjunction with the positioning features such as the grooved steps arranged in the fixed cover and the opening, squeezes the opening and venting member together in the direction of gas flow, preventing any unscrewing or lateral displacement in the direction of gas flow that could compromise the airtightness of the fluid passage and reduce the sealing effect, further enhancing the sealing effect.

[0260] Optionally, in some embodiments of the power supply box, the exhaust pipe Con232 has a first end TC1 and a second end TC2 defining an air inlet and an air outlet OU23, respectively. The battery assembly B23 has an exhaust hole Pai23. The air inlet I23 is in sealed communication with the exhaust hole Pai23, allowing gas escaping from the exhaust hole Pai23 of the battery assembly Ba23 to enter the exhaust pipe Con232 via the air inlet I23.

[0261] Optionally, in the power box of some embodiments, the mounting port Mou23 is sleeved on the second end TC2 of the exhaust pipe Con232, and the air outlet OU23 is fluidically connected to the air release hole Fa23; or,

[0262] The second end OU23 on the exhaust pipe Con232 is inserted into the interior of the air release member V23 from the installation port Mou23. The air outlet OU23 passes through the interior of the air release member V23 and is fluidically connected to the air release hole.

[0263] In some embodiments, an exhaust pipe Con232 is provided, with its two ends OU23 and I23 connecting the battery assembly interior and the exterior of the housing, respectively. This prevents gas escaping from the battery assembly Ba23 from dispersing within the housing. Instead, it is directed by the exhaust pipe to the opening Ven1 and discharged out of the housing Ca23 through the exhaust assembly Fang23, which consists of a fastened exhaust member and a filter. This prevents the exhaust gas from the battery assembly B23 from causing adverse effects such as corrosion on the inner wall of the housing.

[0264] Preferably, the exhaust pipe Con232 is a tubular structure. It is understood that when the exhaust pipe Con232 adopts a tubular cavity, if both ends are threaded, the cross-sections of the two ends can be circular, while the cross-section of the other hollow portion can be any optional shape, including but not limited to: circular, square, elliptical, rectangular, etc.; the overall shape of the explosion-proof cavity can be: prismatic, square, or elliptical.

[0265] Optionally, in the power box of some embodiments, the battery assembly B23 further includes a shell, and the exhaust hole Pai23 is opened on the shell.

[0266] In the power box of other embodiments, the battery assembly B23 also includes an outer shell, an air collecting cover G232, G232', and one or more lead-acid batteries, wherein each lead-acid battery has an exhaust port Pai23'; the outer shell is partially concave to form an exhaust slot SL23, and the exhaust ports Pai23' opened on one or more lead-acid batteries are all located in the exhaust slot SL23. The air collecting covers G232, G232' cover the notch of the exhaust slot SL23 and are connected / sealed to the notch. In this structure, the opening for exhausting gas opened on the air collecting cover is defined as the exhaust hole Pai23. The opening for exhausting gas opened directly on one or more lead-acid batteries is defined as the exhaust port Pai23'.

[0267] Optionally, in the power box of some embodiments, as shown in Figures 6A to 6H, the first end T1' of the air vent member V23' extends from the opening Ven1' into the box body Ca23' and engages with the second end TC2' of the exhaust pipe Con232"; the second end T2' / air vent hole Fa23' of the air vent member V23 is exposed outside the opening Ven1'.

[0268] The exhaust pipe Con232 ″ is a flexible pipe that flexibly connects the exhaust hole Pai23 and the mounting port Mou23 ′. A first end of the exhaust pipe Con232 ″ is connected to the exhaust hole Pai23 .

[0269] The flexible tube can be manufactured with an internal liner made of elastic material, so that the fluid can be sealed and connected, and at the same time the hose can be bent, twisted and rotated according to the needs of the battery placement and operation, which facilitates the use of the internal space of the box and improves the assembly flexibility and manufacturability of the power box.

[0270] Optionally, in some embodiments, the power box further includes a seal D232', which is arranged between the opening Ven1' and the venting piece V23', further enhancing the gas tightness of the entire fluid channel at the opening Ven1', so that the gas is basically only introduced into the venting piece Fa23' along the exhaust pipe Con232", and then discharged out of the box.

[0271] The first end T1' of the vent member V23 extends into the opening portion Ven1' and is optionally threadedly connected to the opening portion. After extending into the opening portion, the first end T1' of the vent member V23 extends along the inner wall of the opening portion Ven1' toward the periphery of the opening portion Ven1'. The extension Ext23' is secured to the inner side of the opening portion Ven1' via a seal. Because the extension Ext23' and the inner side of the opening portion Ven1' are sandwiched by a seal D232', even if the threaded connection between the first end T1' of the vent member V23 and the opening portion is not airtight, gas will not leak between a) the extension Ext23' of the first end T1' of the vent member V23 and b) the inner side of the opening portion.

[0272] Optionally, in some embodiments of the power box, the volume of the box body and the battery assembly are comparable, rather than the internal volume of the box body being significantly larger than the volume of the battery. In this "small box" power box, as shown in Figures 4A to 4C, multiple relative walls of the box body Ca23' can be recessed into the box body to abut / approach the battery assembly B23. These relative walls include: i) top wall, bottom wall, and / or ii) relative side walls. Through this structure, the displacement space inside the battery is reduced, and if it abuts against the battery shell, it can help fix the position of the battery in the box body, thereby improving the structural stability of the entire power box.

[0273] In addition, for these "small box" power boxes, since the distance between the opening Ven1' and the outer shell of the battery assembly B23 is very short or even close to each other, an exhaust pipe may no longer be provided in this structure.

[0274] Because the vent member V23' has a hollow structure, its mounting opening Mou23' and vent hole Fa23' are connected through the interior of the vent member V23'. Therefore, the vent member V23' can also function as a "gas diversion channel," similar to the exhaust pipe in other embodiments. Since the distance between the exhaust hole Pai23 and the mounting opening Mou23' on the battery assembly B23 is very short, a gasket or other means can be used to prevent gas leakage within this distance, forming an airtight channel. Therefore, in some embodiments such as those shown in FIG4C , the outwardly protruding opening Ven1' creates a small space within the housing. This space is filled with a sealing member D233', which is located between a) the inner side of the opening Ven1' and the gas collecting cover G232', or b) the inner side of the opening Ven1' and the battery assembly housing. The sealing member D233' surrounds i) the opening Ven1' and ii) the vent hole Pai23, forming an airtight channel at this location.

[0275] Optionally, the second end T2' of the venting member V23' is integrally connected to the middle portion of the inner side of the fixed cover G231', thereby omitting screws and other connectors used in other embodiments. The venting member V23' extends substantially perpendicular to the fixed cover G231' toward the opening Ven1', and the first end T1' of the venting member V23' is butt-jointed, sleeved, or threadedly connected to the opening Ven1'.

[0276] The first end T1' of the air release member V23 extends into the opening Ven1' / box Ca23', and the mounting port Mou23' is aligned with or fluidically connected to the exhaust hole Pai23. This forms a fluid passage that is shorter in length, has fewer parts, and is still airtight.

[0277] Optionally, in some power boxes as shown in FIG2A to FIG2G and FIG3A to FIG3E, the volume of the box body is significantly larger than the volume of the battery assembly. In this "large box" power box Ca23,

[0278] Seal D232 fills the opening Ven1, located between a) the inner wall of the opening Ven1 and b) the outer wall of the exhaust pipe Con232. This seal arrangement prevents gas that has been discharged through the vent hole Fa23 to the filter element F23 from flowing back through the threaded connection into the reflux channel of the opening. This enhances the airtightness and unidirectional flow of the entire fluid channel, preventing gas from flowing back into the box.

[0279] Alternatively, in some "small-box" power supply boxes as shown in Figures 5A to 5F , if an exhaust pipe Con232' is required, the exhaust pipe can be relatively short. In this case, the first end TC1' of the exhaust pipe Con232' can be fixed to the gas collecting cap G232' or the battery housing by welding or chemical bonding, and the air inlet (not shown) at the first end TC1' of the exhaust pipe Con232' is interconnected / sealed with the exhaust hole Pai23.

[0280] Optionally, in some power boxes with "large boxes" as shown in Figures 3A to 3E, the following are also included: a fastener G391, a seal D233; the first end TC1 of the exhaust pipe Con232 extends into the box Ca23 and is connected to the exhaust hole Pai23' through the fastener G391.

[0281] The seal D233 is disposed between the first end TC1 of the exhaust pipe Con232 and the exhaust hole Pai23, surrounds the exhaust hole Pai23, and forms airtightness between the first end TC1 and the exhaust hole Pai23, so that the two form an airtight fluid channel there.

[0282] Optionally, the connecting part G391 further includes: a fixing part Fi23 and a fixing pipe part G391.

[0283] The fixing member Fi23 has a through hole G727 and is fluidically connected to the exhaust hole Pai23'; the fixing member Fi23 is fixed to the gas collecting cover or the housing Ker23;

[0284] The fixed pipe G391 connects the fixing member Fi23 and the first end TC1 of the exhaust pipe Con232. The first end TC1 of the exhaust pipe Con232 and the fixing member Fi23 clamp the sealing member D233. The sealing member D233 surrounds the through hole G727. The air inlet I23 is in fluid communication with the through hole G727.

[0285] Optionally, in the power box of some embodiments, the fixed pipe G391 has a relative first opening OP97 and a second opening OP88, which respectively fit over the fixing member Fi23 and the first end TC1 of the exhaust pipe Con232 to fasten the two together; the first opening OP97 and the second opening OP88 are connected internally through the fixed pipe G391.

[0286] Further optionally, the first end TC1 of the exhaust pipe Con232 extends into the second opening OP88; the second opening OP88 contracts inwardly, or the first end of the exhaust pipe Con232 extends laterally outward / peripherally, with the extended portion EX62 engaging with the second opening OP88. The term "lateral" may be understood as a direction perpendicular to the extension direction of the exhaust pipe Con232, or the lateral direction may be perpendicular to the axial direction / length direction / extension direction of the exhaust pipe Con232.

[0287] The fixing pipe G391 and the fixing member Fi23 are threadedly connected to each other so as to press the first end TC1 of the exhaust pipe Con232 toward the fixing member Fi23 through the second opening OP88.

[0288] Optionally, the power box of some embodiments further includes a fluid channel CH23, as shown in FIG2 , the fluid channel CH23 can connect the interior of the battery with the opening of the box body Ca23, and this fluid channel is composed of one or more of i) an exhaust pipe, a venting member, or ii) a through hole, a chamber, a hollow part in a fixing member, and the opening of the box body, a vent hole, an exhaust hole and other openings / openings / ports, and iii) a seal between various components. This fluid channel is a gas channel that guides the exhaust gas of the battery so that the gas can be discharged to the outside of the box body through the filter element, and even, preferably, it can prevent the gas from randomly diffusing inside the box body. For this fluid channel, those skilled in the art can also conceive of various other forms of layout to allow the exhaust gas to escape from the battery pack and be discharged to the outside of the box body through the filter element. The variations and implementation methods of these fluid channels are all within the spirit and scope of the present invention.

[0289] The screw Na23 passes through the fixing cover G231 from the outside of the box body Ca23, extends to the opening portion Ven1, and is threadedly connected to the screw hole Na23' on the air release member V23.

[0290] Seals D232, D233, and D233' are elastic parts made of elastomeric materials and formed into gaskets, washers, and O-rings; they can be used to provide a fluid-tight connection between the interior of the battery assembly Ba23 and the exterior of the box Ca23, allowing the airflow to be sealed, connected, and flow.

[0291] The sealing member D232 is filled in the opening portion Ven1 and is located between two or three of a) the inner wall of the opening portion Ven1, b) the outer wall of the exhaust pipe Con232, and c) the second end TC2 of the exhaust pipe Con232;

[0292] The gas collecting covers G232 and G232' seal and cover the exhaust port Pai23', and sealant is filled between the gas collecting covers G232 and G232' and the shell Ker23 they cover.

[0293] In some embodiments, the "sealed joint" is an airtight coupling, which is an airtight and liquid-tight threaded connection or a chemical bonding; or,

[0294] In some embodiments, the "joint" is a sealed joint, which is a sealed butt joint / sealed sleeve joint / sealed sleeve joint, which is liquid-tight and / or gas-tight, including a threaded connection; or,

[0295] In some embodiments, "joining" is fluid connectivity;

[0296] In some embodiments, "communication" refers to fluid communication and / or sealed communication; and fluid communication refers to gas communication;

[0297] Optionally, in some embodiments, the air inlet I23 of the exhaust pipe is sealed and connected to the exhaust hole Pai23, and the filter element F23 closes the air outlet OU23, thereby forming a fluid channel, providing a fluid-tight channel or an airtight fluid channel between the exhaust hole Pai23 and the filter element F23, and providing a fluid channel that is gas-connected but liquid-not connected between the inside and outside of the box body Ca23 through the filter element F23.

[0298] Referring to Figures 6A and 6B, in this embodiment, the small box includes a box body Ca23'-1 and a box cover Ca23'-2. These two parts are sealed and connected to form a closed box. The box body Ca23'-1 can also be implemented as the outer shell Ca23'-1' of a battery or battery assembly, that is, the shell Ca23'-1' of the battery / battery assembly is used as the box body Ca23'-1, or as a part of the box body Ca23'. When the box cover Ca23'-2 is sealed and connected to the shell Ca23'-1' of the battery / battery assembly as shown in Figure 6B, a closed space can also be formed. The gas discharged from the exhaust hole of the battery is discharged outside the box bodies Ca23'-2 and Ca23'-1' through the venting component Fang23 in the closed space. In this case, the box body Ca23'-1 in Figure 6B is no longer required.

[0299] It should be noted that in some of the above and following embodiments, "jumping", "fixed connection", "fixing" and "connection" are not limited to direct connection or direct contact between two components or assemblies, but can be implemented as: direct connection, or indirect connection formed by devices such as resistors.

[0300] Thus, this application may use the expressions "coupled," "coupled," "fixed," and "connected," as well as their derivatives, to describe some embodiments. It should be understood that these terms are not intended to be synonyms for each other. For example, some embodiments may be described using the term "connected" to indicate that two or more elements are in direct physical or electrical contact with each other. In another example, some embodiments may be described using the term "coupled" to indicate that two or more elements are in direct physical or electrical contact with each other. However, the term "coupled" may also mean that two or more elements are not in direct contact with each other, but still operate or interact with each other. The embodiments are not limited to this context.

[0301] The emergency power supply box in some embodiments of the present application is externally connected to the emergency lighting fixture. The emergency power supply box includes a power storage component connected between the power supply / battery in the power supply box and the external emergency lighting fixture.

[0302] Figure 9 shows a macroscopic schematic diagram of the electrical connection topology C311 between the storage components 210 and 211, electrical components, and sub-components within the power box according to some embodiments of the present application and between the storage components and the light source board. Each of the storage components 210 and 211 includes a connection terminal anode and a connection terminal cathode. For example, the storage component 210 has a connection terminal anode connected to the bus 234 and a connection terminal cathode connected to the bus B341. In addition, the storage component 211 has a connection terminal anode connected to the bus B343 and a connection terminal cathode connected to the switch ONOFF361.

[0303] As shown in FIG9 , switches ONOFF361, ONOFF362, ONOFF365, and ONOFF367 are single-pole double throw (SPDT). For example, any one or all of switches ONOFF361, ONOFF362, ONOFF365, and ONOFF367 can be "ON-ON" or "ON-OFF-ON" types of single-pole double throw switches. Any one or all of switches ONOFF361, ONOFF362, ONOFF365, and ONOFF367 can include one or more contactors, relays, or transistors. For example, switches ONOFF361, ONOFF362, ONOFF365, and ONOFF367 can all be single-pole double throw (SPDT) contactors. In another embodiment, switches ONOFF361, ONOFF362, ONOFF365, and ONOFF367 can all include two single-pole single throw (SPST) contactors that are appropriately wired to achieve SPDT connectivity. As shown in FIG9 , switches ONOFF371 and ONOFF373 ​​are both single-pole, single-throw switches configured to connect and disconnect corresponding terminals of the battery charging unit EU381 from the busbars B341 and B343. Either or both of switches ONOFF371 and ONOFF373 ​​may include contactors, relays, or transistors.

[0304] As shown in Figure 9, the storage components 210 and 211 are coupled in series. For example, the switch ONOFF361 and the switch ONOFF362 are configured to connect the anode of one connection terminal of the storage component 210 to the cathode of one connection terminal of the storage component 211. The light source board 31 of the emergency lighting fixture connected to the emergency power supply box in Figures 2B, 3C and other figures is shown as being connected to the storage component 210 via the switch ONOFF367 and the switch ONOFF365. As shown in Figure 9, the switch ONOFF367 connects the bus bar B341 to the cathode connection terminal of the light source board 31, while the switch ONOFF365 connects the bus bar 234 to the anode connection terminal of the light source board 31.

[0305] In some embodiments, the storage component 210 may also be referred to as a battery cell and may further include modules 313, 315, 317, and 319. In some embodiments, the storage component 211 may also include submodules 203, 205, 207, and 209, which may also be referred to as battery cells. For example, the storage component 210 may be referred to as a "string of battery cells" (i.e., battery cells coupled in series). The voltage of the storage component 210 may be a combination of battery cells 313, 315, 317, and 319. For example, as schematically shown in Figure 9, the voltage of the storage component 210 is the sum of the voltages of each of the battery cells 313, 315, 317, and 319. In another embodiment, the storage component (e.g., the storage component 210 or the storage component 211) may include one or more battery cells coupled in parallel (e.g., to increase the current capacity of the storage component). For clarity, the present application is described based on the storage component.

[0306] For simplicity, topology C311 illustrates two storage components, but according to the present application, more than two storage components can be managed. For example, three storage components that operate at 220V can be connected using a switch configuration in parallel (e.g., charging at 110V) or in series (e.g., charging at 220, 240 volts). In another embodiment, three storage components that each operate at 220 volts can be configured in parallel (i.e., in parallel) (e.g., charging at 220 volts), or two of the three can be configured in parallel and then connected in series with the third (e.g., charging at 220V, 240 volts). According to the present application, any suitable number of storage components can be managed (e.g., coupled in series or in parallel with a switch configuration). It will be understood that the storage component can include one or more submodules (e.g., separate submodules that can be coupled together to form a module).

[0307] [Alternative embodiment]:

[0308] Example 1. A method for constructing an exhaust duct for a power box, comprising the steps of:

[0309] S1. Provide a sealed box;

[0310] S2. An opening is provided on the housing;

[0311] S3. Fix the porous filter to the opening with a fastener to enclose the opening.

[0312] 2. The method according to embodiment 1, wherein the power box contains at least one battery capable of discharging gas; the method further comprises the steps of:

[0313] S4. Establishing a fluid channel between the interior of the battery and the opening.

[0314] 3. The method according to embodiment 2, wherein step S4 further comprises the following steps:

[0315] S41 covers the exhaust port of the at least one battery or the exhaust slot where the exhaust port is located with an air collecting cover;

[0316] S42: sealingly connecting the gas collecting cover to the notch of the exhaust groove or the periphery of the exhaust port;

[0317] S43 establishes a first section of the fluid channel between the opening and the exhaust hole / exhaust port.

[0318] 4. The method according to embodiment 3, wherein step S43 further comprises the following steps:

[0319] S431 , fluidly connecting a) the opening and b) the exhaust hole / exhaust port through the exhaust pipe;

[0320] S432: fixing the exhaust pipe using a) a fixing pipe member adapted to the first end of the exhaust pipe and / or b) a hollow air release member adapted to the second end of the exhaust pipe;

[0321] S433: Establish a second section of the fluid channel between the air outlet at the second end of the exhaust pipe and the opening.

[0322] 5. The method according to embodiment 4, wherein step S433 further comprises the steps of:

[0323] S4331 inserting the second end of the exhaust pipe into the hollow chamber of the air release member, thereby connecting the air outlet fluid to the porous filter member or its surface through the air release port of the air release member;

[0324] S4332: shaping the porous filter element into a hollow cylinder / hollow column, and fitting at least a portion of the air release element thereon;

[0325] S4333 , corresponding to the porous filter element, forming the opening portion protruding toward the outside of the box into any one of the following shapes: a circular cylinder, a hollow cylinder, a cavity, a tubular cavity, or a finger ring shape;

[0326] S4333: The porous filter element is fixed and sealed to the opening portion by a fastener, so that the fastener and the porous filter element cooperate to enclose / enclose the opening portion.

[0327] 6. The method of embodiment 5, wherein the fastener comprises a fixing cover, the porous filter element comprises a first port and a second port connected through the interior thereof; and step S4333 further comprises the steps of:

[0328] The second port of the porous filter is closed by the fixing cover, and the first port is pressed and fixed on the opening end surface of the opening to seal the opening; and the method further comprises the steps of:

[0329] S5: placing a sealing member at one or more of the following locations: a) between the porous filter and the fastener, or b) between the porous filter and the opening, or c) between the fixing cover and the second port, or d) between the inner side of the opening and the gas collecting cover, or e) between the opening and the air release member; or f) between the inner wall of the opening and the outer wall of the exhaust pipe, or g) between the first end of the exhaust pipe and the exhaust hole; or h) between the first end of the exhaust pipe and the fixed pipe member.

[0330] S6: recessing the plurality of opposite walls of the box inwardly to abut against / approach the battery assembly, the opposite walls comprising: i) a top wall, a bottom wall, and / or ii) opposite side walls;

[0331] S7. The porous filter is formed into a range where the maximum pore size / average pore size is within any of the following ranges: [0.01 μm, 300 μm], [0.1 μm, 1.5 μm], [0.01 μm, 1 μm], [1 μm, 100 μm], [150 μm, 200 μm] or [100 μm, 180 μm], [0.05 μm, 150 μm], or [0.01 μm, 200 μm];

[0332] The enclosure is watertight covering or watertight enclosure;

[0333] The sealing member is an elastic member made of an elastomeric material and formed into a gasket, a washer, or an O-ring;

[0334] The sealed joint is an airtight coupling, and the airtight coupling is an airtight and liquid-tight threaded connection or a chemical bonding; or,

[0335] The joint is a sealed joint, which is a sealed butt joint / sealed sleeve joint / sealed sleeve joint, and has liquid tightness and / or air tightness, including a threaded connection; or,

[0336] The junction is in fluid connectivity;

[0337] The communication is fluid communication and / or sealed communication;

[0338] The fluid communication is gas communication;

[0339] The air inlet is in sealed communication with the air outlet, and the porous filter element closes the air outlet, thereby forming the fluid passage, providing a fluid-tight passage or an airtight passage between the air outlet and the porous filter element, and providing a fluid passage in gas communication but not liquid communication between the interior and exterior of the housing through the porous filter element;

[0340] The porous filter element is more water-tight than air-tight; the porous filter element is air-permeable, but under the same temperature and / or pressure conditions, the porous filter element is not water-permeable;

[0341] The housing, except for the filter element, has a closed / sealed structure, or maintains watertightness and airtightness; the porous filter element is watertight but not airtight;

[0342] The one or more batteries are lead-acid batteries that can vent gases.

[0343] 7. A power supply box, comprising:

[0344] Box;

[0345] An opening portion passes through the box wall of the box body;

[0346] A battery assembly is housed in the box;

[0347] a porous filter element, enclosing the opening;

[0348] Fastener;

[0349] The porous filter element is mounted to the opening portion via the fastener, and the maximum pore size / average pore size of the porous filter element is within the following range: [0.01 μm, 300 μm].

[0350] 8. The power supply box according to embodiment 7, wherein:

[0351] The fastener includes a fastener or a chemical bonding layer;

[0352] The fastener cooperates with the porous filter to enclose the opening;

[0353] The porous filter element is made of porous material, and its maximum pore size / average pore size is within any of the following ranges: [0.1μm, 1.5μm], [0.01μm, 1μm], [1μm, 100μm], [150μm, 200μm] or [100μm, 180μm], or [0.05μm, 150μm], or [0.01μm, 250μm].

[0354] 9. The power supply box according to embodiment 8, wherein the fastener further comprises a pressing piece and / or a connecting piece; the pressing piece presses the porous filter element onto the box body; or,

[0355] The connecting piece is connected to the pressing piece and the box body; the porous filter element is clamped between the pressing piece and the box body.

[0356] 10. The power supply box according to any one of embodiments 7-9, wherein:

[0357] The porous filter element corresponds to and / or fits the opening and is suitable for engaging with the opening;

[0358] The porous filter is formed into a cover body, which is adapted to the shape of the opening; and

[0359] The porous filter element has a hollow structure and is shaped into any of the following: a circular cylinder, a hollow cylinder, a cavity, a tubular cavity, or a finger ring; or

[0360] The porous filter element is provided with a first port connected to the opening.

[0361] 11. The power supply box according to embodiment 10, wherein:

[0362] The opening is provided with a second positioning portion arranged along the circumference thereof, adapted to / corresponding to the first port; the first port is relatively fixed and / or docked with the opening via the second positioning portion; and / or,

[0363] The porous filter element also has a second port opposite to the first port; the first port and the second port are interconnected through the interior of the porous filter element; the fixed cover is pressed onto the second port and closes the second port; a first positioning portion is arranged around the inner side of the fixed cover, which is adapted / corresponding to the second port; the fixed cover is fixed relative to the second port through the first positioning portion and closes the second port.

[0364] 12. The power supply box according to embodiment 11, wherein:

[0365] The first positioning portion is a groove or a step, arranged circumferentially on the inner side of the fixed cover, and fixes the second port; and / or,

[0366] The second positioning portion is a groove or a step, arranged along the end surface of the opening, and fixed to the first port.

[0367] 13. The power supply box according to embodiment 12, further comprising a venting member having a hollow structure with a venting hole and a mounting opening formed thereon;

[0368] The interior of the degassing member is communicated with the outside through the degassing hole; or, the degassing hole and the mounting port are communicated with each other through the internal fluid of the degassing member.

[0369] 14. The power supply box according to embodiment 13, wherein the mounting port engages the opening portion and is in fluid communication with the porous filter element or its inner surface through the interior of the air release member and the air release hole;

[0370] The opening is formed to protrude toward the outside of the box; the mounting port is opened at the first end of the air release member, and the first end is threadedly connected to the opening;

[0371] The vent hole is formed at the second end of the vent member and is i) in fluid communication with the outside of the opening, or ii) exposed to the outside of the opening;

[0372] The pressing member includes a fixing cover, and the connecting member is a screw;

[0373] The fixing cover presses and fixes the porous filter element to the opening;

[0374] The screw passes through the fixing cover and is threadedly connected to the second end of the deflating member.

[0375] 15. The power supply box according to embodiment 14, further comprising an exhaust pipe, fluidically connecting the exhaust hole and the air release member, or fluidically connecting the interior of the battery assembly and the air release member;

[0376] The first end and the second end of the exhaust pipe define an air inlet and an air outlet respectively;

[0377] The battery assembly has a vent hole;

[0378] The air inlet is in communication with the exhaust hole;

[0379] The mounting port is sleeved on the second end of the exhaust pipe, and the air outlet is in fluid communication with the air release hole; or,

[0380] The second end of the exhaust pipe is inserted into the interior of the air release member from the installation port, and the air outlet passes through the interior of the air release member and is fluidically connected to the air release hole.

[0381] 16. The power supply box according to embodiment 15, wherein:

[0382] A) the battery assembly further includes a housing, and the exhaust hole is provided on the housing; or

[0383] B) The battery assembly further includes a housing, a gas collecting cover, and one or more lead-acid batteries, each of which has an exhaust port; the housing is partially concave to form an exhaust groove, and the exhaust ports on the one or more lead-acid batteries are all located in the exhaust groove;

[0384] The gas collecting cover covers the exhaust groove and is connected / sealed with the notch thereof. The exhaust hole is provided on the gas collecting cover.

[0385] 17. The power supply box according to embodiment 16, wherein:

[0386] The first end of the air release member extends from the opening into the box body and engages with the second end of the exhaust pipe; the second end / air release hole of the air release member is exposed outside the opening;

[0387] The exhaust pipe is a flexible pipe that flexibly connects the exhaust hole and the installation port;

[0388] The first end of the exhaust pipe is connected to the exhaust hole.

[0389] 18. The power supply box according to embodiment 17, further comprising a sealing member disposed between the opening and the air release member;

[0390] The first end of the degassing member extends along the inner wall of the opening toward the periphery of the opening, and the extension is fixed to the inner side of the opening through the sealing member.

[0391] 19. The power supply box according to embodiment 13 or 14, wherein:

[0392] The second end of the degassing member is integrally connected to the middle portion of the inner side of the fixing cover, extends substantially perpendicular to the fixing cover toward the opening, and the first end of the degassing member is butt-jointed / sleeved / sleeved / threadedly connected to the opening;

[0393] The first end of the degassing member extends into the opening portion / the box body, and the mounting port is aligned with or fluidically connected to the exhaust hole;

[0394] The protruding space of the opening is filled with a sealant, which is located between a) the inner side of the opening and the gas collecting cover, or b) the inner side of the opening and the shell, and surrounds i) the opening and ii) the exhaust hole.

[0395] 20. The power supply box according to embodiment 16, further comprising:

[0396] The sealing member is filled in the opening and is located between a) the inner wall of the opening and b) the outer wall of the exhaust pipe.

[0397] 21. The power supply box according to embodiment 16, wherein:

[0398] The first end of the exhaust pipe is fixed to the gas collecting cover or the housing by welding or chemical bonding, and the air inlet of the exhaust pipe is in communication / sealed communication with the exhaust hole.

[0399] 22. The power supply box according to embodiment 16, further comprising: a fastening member and a sealing member;

[0400] The first end of the exhaust pipe extends into the box body and is connected to the exhaust hole through a fastening member;

[0401] The sealing member is arranged between the first end of the exhaust pipe and the exhaust hole, surrounding the exhaust hole.

[0402] 23. The power box according to embodiment 22, wherein the fastening member further comprises:

[0403] a fixing member having a through hole and fluidically connected to the exhaust hole; the fixing member is fixed to the gas collecting cover or the housing;

[0404] A fixing pipe member is connected to the fixing member and the first end of the exhaust pipe respectively; the first end of the exhaust pipe and the fixing member clamp the sealing member; the sealing member surrounds the through hole;

[0405] The air inlet is in fluid communication with the through hole.

[0406] 24. The power supply box according to embodiment 23, wherein:

[0407] The pipe fixing member is provided with a first opening and a second opening opposite to each other, which respectively fit over the fixing member and the first end of the exhaust pipe to fasten the two together;

[0408] The first opening and the second opening are connected through the interior of the fixed pipe.

[0409] 25. The power supply box according to embodiment 24, wherein:

[0410] The first end of the exhaust pipe extends into the second opening; the second opening contracts inwardly, or the first end of the exhaust pipe extends outwardly / peripherally in a transverse direction, thereby being engaged with the second opening;

[0411] The pipe fixing member is threadedly connected to the fixing member so as to press the first end of the exhaust pipe toward the fixing member through the second opening.

[0412] 26. The power supply box according to embodiment 25, further comprising a fluid channel connecting the interior of the battery with the opening;

[0413] The covering / enclosure is a watertight covering or watertight enclosure; the joint / joint portion between the porous filter element and the fastener, or the joint / joint portion between the porous filter element and the opening, is watertight and / or airtight and / or sealed;

[0414] The screw passes through the fixing cover from the outside of the box, extends toward the opening, and is threadedly connected to the screw hole on the degassing member.

[0415] The sealing member is an elastic member made of an elastomeric material and formed into a gasket, a washer, or an O-ring;

[0416] a sealing member filled in the opening and located between two or three of a) the inner wall of the opening, b) the outer wall of the exhaust pipe, and c) the second end of the exhaust pipe;

[0417] The gas collecting cover seals and covers the exhaust port, and a sealant is filled between the gas collecting cover and the shell it covers;

[0418] The sealed joint is an airtight coupling, and the airtight coupling is an airtight and liquid-tight threaded connection or a chemical bonding; or,

[0419] The joint is a sealed joint, which is a sealed butt joint / sealed sleeve joint / sealed sleeve joint, and has liquid tightness and / or air tightness, including a threaded connection; or,

[0420] The junction is in fluid connectivity;

[0421] The communication is fluid communication and / or sealed communication;

[0422] The fluid communication is gas communication;

[0423] The air inlet is in sealed communication with the air outlet, and the porous filter element closes the air outlet, thereby forming the fluid passage, providing a fluid-tight passage or an airtight passage between the air outlet and the porous filter element, and providing a fluid passage in gas communication but not liquid communication between the interior and exterior of the housing through the porous filter element;

[0424] The porous filter element is more water-tight than air-tight; the porous filter element is air-permeable, but under the same temperature and / or pressure conditions, the porous filter element is not water-permeable;

[0425] The housing, except for the filter element, has a closed / sealed structure, or maintains watertightness and airtightness; the porous filter element is watertight but not airtight;

[0426] The porous filter element is a porous filter element, and the maximum pore size / average pore size range is: [0.05 μm, 150 μm], or [0.01 μm, 200 μm];

[0427] The transverse direction is perpendicular to the axial direction / length direction / extension direction of the exhaust pipe;

[0428] The multiple opposite walls of the box body are recessed inwardly to abut against / approach the battery assembly, and the opposite walls include: i) a top wall, a bottom wall, and / or ii) opposite side walls.

[0429] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 understood as limiting the present invention.

[0430] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0431] In the description of the present invention, "plurality" means two or more.

[0432] In the description of the present invention, a first feature being “on” or “under” a second feature may include the first and second features being in direct contact with each other, or the first and second features not being in direct contact with each other but being in contact with each other via another feature therebetween.

[0433] In the description of the present invention, “on”, “above” and “above” a first feature of a second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0434] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0435] The filter element in some of the above-mentioned embodiments can be a filter element in an ordinary water filtration device, which is watertight and non-airtight - for example, it is breathable but not watertight at normal temperature and pressure. The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referred to each other. Each optional technical feature can be combined with other embodiments in any reasonable manner, and the contents between the various embodiments and under various headings can also be reasonably combined in any manner. Each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.

[0436] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The singular forms of "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two. It should be understood that the term "and / or" used in this article is merely an association relationship describing associated objects, indicating that three relationships can exist, for example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0437] Although specific embodiments of the present application have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present application is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present application, and such changes and modifications are intended to fall within the scope of protection of the present application.

Claims

1. A method for constructing an exhaust passage for a power box, comprising the steps of: S1. Provide a sealed box; S2. An opening is provided on the housing; S3. Fix the porous filter to the opening through fasteners to enclose the opening.

2. The method of claim 1, wherein: The power box contains at least one battery capable of discharging gas; the method further comprises the steps of: S4. Establishing a fluid channel between the interior of the battery and the opening.

3. The method of claim 2, wherein: The step S4 further comprises the steps of: S41, covering the exhaust port of the at least one battery or the exhaust groove where the exhaust port is located with an exhaust cover; S42 sealingly connects the gas collecting cover to the notch of the exhaust groove or the periphery of the exhaust port; S43: Establishing a first section of the fluid channel between the opening and the exhaust hole / exhaust port.

4. The method of claim 3, wherein: The step S43 further comprises the steps of: S431, fluidly connecting a) the opening and b) the exhaust hole / exhaust port through the exhaust pipe; S432: fixing the exhaust pipe by using a) a fixing pipe member adapted to the first end of the exhaust pipe and / or b) a hollow air release member adapted to the second end of the exhaust pipe; S433: Establishing a second section of the fluid channel between the air outlet at the second end of the exhaust pipe and the opening.

5. The method of claim 4, wherein: The step S433 further includes the steps of: S4331 inserting the second end of the exhaust pipe into the hollow chamber of the exhaust member, so that the exhaust port fluid is connected to the porous filter member or its surface through the exhaust port of the exhaust member; S4332: forming the porous filter element into a hollow cylinder / hollow column, and fitting at least a portion of the air release element; S4333 corresponding to the porous filter, the opening is convexly formed toward the outside of the box into any one of the following shapes: a circular cylinder, a hollow cylinder, a cavity, a tubular cavity, or a finger ring shape; S4333: The porous filter element is fixed and sealed to the opening by means of a fastener, so that the fastener and the porous filter element cooperate to enclose / enclose the opening.

6. The method of claim 5, wherein: The fastener includes a fixing cover, and the porous filter has a first port and a second port connected through the inside thereof; the step S4333 further includes the steps of: The second port of the porous filter is closed by the fixing cover, and the first port is pressed and fixed on the opening end surface of the opening to seal the opening; and the method further comprises the steps of: S5: placing a sealing member at one or more of the following locations: a) between the porous filter and the fastener, or b) between the porous filter and the opening, or c) between the fixed cover and the second port, or d) between the inner side of the opening and the gas collecting cover, or e) between the opening and the air release member; or f) between the inner wall of the opening and the outer wall of the exhaust pipe, or g) between the first end of the exhaust pipe and the exhaust hole; h) between the first end of the exhaust pipe and the fixed pipe member; S6: recessing the plurality of opposite walls of the box body inwardly to abut against / approach the battery assembly, wherein the opposite walls include: i) a top wall, a bottom wall, and / or, ii) opposite side walls; S7. The porous filter is formed into a range where the maximum pore size / average pore size is in any of the following intervals: [0.01 μm, 300 μm], [0.1 μm, 1.5 μm], [0.01 μm, 1 μm], [1 μm, 100 μm], [150 μm, 200 μm] or [100 μm, 180 μm], [0.05 μm, 150 μm], or [0.01 μm, 200 μm]; The enclosure is watertight covering or watertight enclosure; The sealing member is an elastic member, made of an elastomeric material, and formed into a gasket, a washer, or an O-ring; The sealed joint is an airtight coupling, and the airtight coupling is an airtight and liquid-tight threaded connection or chemical bonding; or, The joint is a sealed joint, which is a sealed butt joint / sealed sleeve joint / sealed sleeve joint, has liquid tightness and / or air tightness, and includes a threaded connection; or, The engagement is in fluid connectivity; The communication is fluid communication and / or sealed communication; The fluid communication is gas communication; The air inlet is sealed and connected to the air outlet, and the porous filter seals the air outlet, thereby forming the fluid passage, providing a fluid-tight passage or an airtight passage between the air outlet and the porous filter, and providing a fluid passage that is gas-connected but liquid-incompatible between the inside and outside of the box through the porous filter; The porous filter element has better water tightness than air tightness; the porous filter element has air permeability, but under the same temperature and / or pressure conditions, the porous filter element has no water permeability; The box body, except for the filter element, has a closed / sealed structure, or maintains water tightness and air tightness; the porous filter element is water tight but not air tight; The one or more batteries are lead-acid batteries that can vent gases.

7. A power supply box, comprising: Box; An opening portion, penetrating through the box wall of the box body; A battery assembly is contained in the box; A porous filter element encapsulating the opening; Fastener; The porous filter is mounted to the opening portion through the fastener, and the maximum pore size / average pore size of the porous filter is within the following range: [0.01 μm, 300 μm].

8. The power supply box according to claim 7, wherein: The fastener includes a fastener or a chemical bonding layer; The fastener cooperates with the porous filter to enclose the opening; The porous filter element is made of porous material, and its maximum pore size / average pore size is within any of the following ranges: [0.1μm, 1.5μm], [0.01μm, 1μm], [1μm, 100μm], [150μm, 200μm] or [100μm, 180μm], or [0.05μm, 150μm], or [0.01μm, 250μm].

9. The power supply box according to claim 8, wherein: The fastener also includes a pressing piece and / or a connecting piece; the pressing piece presses the porous filter element onto the box body; or, The connecting piece is connected to the pressing piece and the box body; the porous filter element is clamped between the pressing piece and the box body.

10. The power supply box according to any one of claims 7 to 9, wherein: The porous filter element corresponds to and / or fits the opening and is suitable for engaging with the opening; The porous filter is formed into a cover body, which is adapted to the shape of the opening; as well as, The porous filter has a hollow structure and is shaped into any of the following: a circular cylinder, a hollow cylinder, a cavity, a tubular cavity, or a finger ring; or, The porous filter element has a first port connected to the opening.

11. The power supply box according to claim 10, wherein: The opening is provided with a second positioning portion along the circumferential direction, adapted to / corresponding to the first port; the first port is relatively fixed and / or docked with the opening via the second positioning portion; and / or, The filter element also has a second port opposite to the first port; the first port and the second port are interconnected through the inside of the filter element; the fixed cover is pressed onto the second port and closes the second port; a first positioning portion is arranged around the inner side of the fixed cover and is adapted / corresponding to the second port; the fixed cover is fixed relative to the second port through the first positioning portion and closes the second port.

12. The power supply box according to claim 11, wherein: The first positioning portion is a groove or a step, which is arranged circumferentially on the inner side of the fixing cover to fix the second port; and / or, The second positioning portion is a groove or a step, arranged along the end surface of the opening portion, and fixes the first port.

13. The power supply box according to claim 12, further comprising a venting member having a hollow structure with a venting hole and a mounting opening formed thereon; The interior of the air release member is connected to the outside through the air release hole; or, the air release hole and the mounting port are connected through the internal fluid of the air release member.

14. The power supply box according to claim 13, wherein: The mounting port engages the opening portion and is in fluid communication with the filter element or its inner surface through the interior of the air release element and the air release hole; The opening is formed to protrude toward the outside of the box; the mounting port is opened at the first end of the air release member, and the first end is threadedly connected to the opening; The vent hole is opened at the second end of the vent member and is i) connected to the fluid outside the opening, or ii) exposed outside the opening; The pressing member includes a fixing cover, and the connecting member is a screw; The fixing cover presses and fixes the filter element to the opening; The screw passes through the fixing cover and is threadedly connected to the second end of the air releasing member.

15. The power supply box according to claim 14, further comprising an exhaust pipe, fluidly connecting the exhaust hole and the exhaust member, or fluidly connecting the interior of the battery assembly and the exhaust member; The first end and the second end of the exhaust pipe define an air inlet and an air outlet respectively; The battery assembly has a vent hole; The air inlet is communicated with the exhaust hole; The mounting port is sleeved on the second end of the exhaust pipe, and the air outlet is fluidically connected to the air release hole; or, The second end of the exhaust pipe is inserted into the exhaust member from the mounting opening, and the exhaust port passes through the exhaust member and is fluidically connected to the exhaust hole.

16. The power supply box according to claim 15, wherein: A) the battery assembly further comprises a shell, and the exhaust hole is provided on the shell; or, B) The battery assembly further comprises a housing, a gas collecting cover, and one or more lead-acid batteries, wherein each lead-acid battery has an exhaust port; the housing is partially concave to form an exhaust groove, and the exhaust ports provided on the one or more lead-acid batteries are all located in the exhaust groove; The gas collecting cover covers the exhaust groove and is connected / sealed with the notch thereof. The exhaust hole is formed on the gas collecting cover.

17. The power supply box according to claim 16, wherein: The first end of the air release member extends from the opening into the box body and engages with the second end of the exhaust pipe; the second end / air release hole of the air release member is exposed outside the opening; The exhaust pipe is a flexible pipe, flexibly connecting the exhaust hole and the installation port; The first end of the exhaust pipe is engaged with the exhaust hole.

18. The power supply box according to claim 17, further comprising a sealing member disposed between the opening and the air release member; The first end of the degassing member extends along the inner wall of the opening toward the periphery of the opening, and the extension is fixed to the inner side of the opening through the sealing member.

19. The power supply box according to claim 13 or 14, wherein: The second end of the degassing member is integrally connected to the middle portion of the inner side of the fixing cover, and extends toward the opening portion substantially perpendicular to the fixing cover, and the first end of the degassing member is butt-jointed / sleeved / sleeved / threadedly connected to the opening portion; The first end of the air release member extends into the opening portion / the box body, and the mounting port is aligned with or fluidically connected to the exhaust hole; The protruding space of the opening is filled with a sealant, which is located between a) the inner side of the opening and the gas collecting cover, or b) the inner side of the opening and the outer shell, and surrounds i) the opening and ii) the exhaust hole.

20. The power box according to claim 16, further comprising: The sealing member is filled in the opening and is located between a) the inner wall of the opening and b) the outer pipe wall of the exhaust pipe.

21. The power supply box according to claim 16, wherein: The first end of the exhaust pipe is fixed to the gas collecting cover or the outer shell by welding or chemical bonding, and the air inlet of the exhaust pipe is connected / sealed to the exhaust hole.

22. The power box according to claim 16, further comprising: Fasteners and seals; The first end of the exhaust pipe extends into the box body and is connected to the exhaust hole through a fastening member; The sealing member is arranged between the first end of the exhaust pipe and the exhaust hole, and surrounds the exhaust hole.

23. The power supply box according to claim 22, wherein: The fastening member further comprises: A fixing member having a through hole and fluidically connected to the exhaust hole; the fixing member is fixed to the gas collecting cover or the housing; A fixing pipe member, respectively connecting the fixing member and the first end of the exhaust pipe; the first end of the exhaust pipe and the fixing member clamp the sealing member; the sealing member surrounds the through hole; The air inlet is in fluid communication with the through hole.

24. The power supply box according to claim 23, wherein: The fixing pipe member is provided with a first opening and a second opening opposite to each other, which respectively fit the fixing member and the first end of the exhaust pipe to fasten the two together; The first opening and the second opening are connected to each other through the interior of the fixed pipe.

25. The power supply box according to claim 24, wherein: The first end of the exhaust pipe extends into the second opening; the second opening shrinks inwards, or the first end of the exhaust pipe extends outwards / towards the periphery in a transverse direction, so as to be clamped in the second opening; The pipe fixing member is threadedly connected to the fixing member so as to press the first end of the exhaust pipe toward the fixing member through the second opening.

26. The power supply box according to claim 25, wherein: Also includes a fluid channel connecting the interior of the battery with the opening; The covering / enclosure is a watertight covering or a watertight enclosure; the joint / combination between the filter element and the fastener, or the joint / combination between the filter element and the opening, is watertight and / or airtight and / or sealed; The screw passes through the fixing cover from the outside of the box, extends toward the opening, and is threadedly connected to the screw hole on the air release member. The sealing member is an elastic member, made of an elastomeric material, and formed into a gasket, a washer, or an O-ring; A sealing member filled in the opening and located between two or three of a) the inner wall of the opening, b) the outer wall of the exhaust pipe, and c) the second end of the exhaust pipe; The gas collecting cover seals and covers the exhaust port, and a sealant is filled between the gas collecting cover and the shell covered by it; The sealed joint is an airtight coupling, and the airtight coupling is an airtight and liquid-tight threaded connection or chemical bonding; or, The joint is a sealed joint, which is a sealed butt joint / sealed sleeve joint / sealed sleeve joint, has liquid tightness and / or air tightness, and includes a threaded connection; or, The engagement is in fluid connectivity; The communication is fluid communication and / or sealed communication; The fluid communication is gas communication; The air inlet is in sealed communication with the air outlet, and the filter element closes the air outlet, thereby forming the fluid passage, providing a fluid-tight passage or an airtight passage between the air outlet and the filter element, and providing a fluid passage in which gas is connected but liquid is not connected between the inside and the outside of the housing through the filter element; The filter element is more water-tight than air-tight; the filter element is air-permeable, but under the same temperature and / or pressure conditions, the filter element is not water-permeable; The box body, except for the filter element, has a closed / sealed structure, or maintains water tightness and air tightness; the filter element is water tight but not air tight; The filter element is a porous filter element, and the range of the maximum pore size / average pore size is: [0.05 μm, 150 μm], or [0.01 μm, 200 μm]; The transverse direction is perpendicular to the axial direction / length direction / extension direction of the exhaust pipe; The multiple opposite walls of the box body are recessed inwardly to abut against / approach the battery assembly, and the opposite walls include: i) a top wall, a bottom wall, and / or, ii) opposite side walls.

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