Dust explosion-proof power supply
By designing a sealed enclosure and cooling components, the risk of industrial power supplies exploding in flammable dust environments has been eliminated, achieving efficient heat dissipation and safe use.
Patent Information
- Application Number
- CN202423187287.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Industrial power supplies are prone to explosion due to electrical sparks or high temperatures in flammable dust environments, endangering safety.
The sealed enclosure design and the contact arrangement between the cooling components and the power supply components reduce the probability of dust ingress through active cooling and heat dissipation, and prevent electrical sparks from coming into contact with dust.
It improves the heat dissipation efficiency and safety of power components, reduces the risk of explosion, and protects users' property and lives.
Smart Images
Figure CN223872188U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of industrial power supply dust explosion-proof technology, specifically to a dust explosion-proof power supply. Background Technology
[0002] Industrial power supplies are often used in environments that are prone to generating explosive dust and gases, such as petroleum and petrochemical, chemical, brewing, pharmaceutical, paint, textile, printing and dyeing, and military facilities. In related technologies, electrical equipment can generate electric sparks or generate high heat during long-term operation. Once electric sparks or high-temperature electrical equipment come into contact with combustible dust on site, it can easily lead to an explosion, directly endangering the user's property and life safety. Utility Model Content
[0003] In view of this, the present invention provides a dust explosion-proof power supply to solve the problem of safe use of industrial power supplies in combustible dust environments.
[0004] In a first aspect, this utility model provides a dust explosion-proof power supply, comprising:
[0005] The enclosure contains at least one power supply component sealed inside.
[0006] The connection component, including an input terminal and an output terminal, is respectively disposed through the outer wall of the enclosure and is sealed to the outer wall of the enclosure; the input terminal and the output terminal are adapted to electrically connect the power supply component to an external circuit.
[0007] The cooling component is partially housed within the enclosure and is positioned in contact with the power supply component, making it suitable for cooling the power supply component.
[0008] Beneficial effects:
[0009] This dust explosion-proof power supply, by employing a cooling component that contacts the power supply component, allows the power supply component inside the enclosure to actively cool and dissipate heat, rather than passively relying on heat exchange between the surface of the power supply component and the air, thus improving the heat dissipation efficiency of the power supply component. At the same time, the sealed enclosure design reduces the probability of combustible dust entering the enclosure, preventing explosions caused by electrical sparks generated by the power supply component coming into contact with combustible dust, thereby improving the safety of power supply use.
[0010] In one alternative implementation, the housing includes:
[0011] Sealing plates are installed around the outer wall of the enclosure to seal the enclosure.
[0012] Beneficial effects:
[0013] The structural design of the sealing plate can improve the sealing performance of the enclosure, reduce the probability of combustible dust entering the enclosure, and prevent the electrical sparks generated by the power supply components from coming into contact with combustible dust and causing an explosion, thus improving the safety of power supply use.
[0014] In one alternative embodiment, the input terminal includes a sealed connector adapted to allow a conductive wire to pass through the housing and be electrically connected to the power supply assembly.
[0015] Beneficial effects: The sealed connector design at the input end prevents the electrical sparks generated by the power components inside the enclosure from coming into contact with flammable dust and causing an explosion when the external conductive wires are connected to the enclosure, thus improving the safety of power supply use.
[0016] In one optional embodiment, the output terminal includes a conductive bus, one end of which is located inside the enclosure and the other end is located outside the enclosure, and the conductive bus is in sealed contact with the enclosure; the end of the conductive bus inside the enclosure is electrically connected to the power supply component.
[0017] Beneficial effects: The output end adopts a conductive busbar structure design, which enables the power supply to output effectively. At the same time, the structure design of the conductive busbar in sealed contact with the enclosure prevents flammable dust from entering the enclosure from the output end and coming into contact with the electric sparks generated by the power supply components, thus avoiding explosion and improving the safety of power supply use.
[0018] In one alternative implementation, the cooling assembly further includes:
[0019] Cooling ports, suitable for liquid input and output, are located on the outer wall of the enclosure;
[0020] The connecting pipe is located inside the enclosure and is connected to the cooling interface and the power supply assembly, respectively.
[0021] Beneficial effects: The cooling components are designed to contact the power components, allowing the power components located inside the enclosure to actively cool and dissipate heat, instead of passively dissipating heat by simply relying on the heat exchange between the surface of the power components and the air, thus improving the heat dissipation efficiency of the power components; the cooling interface and connecting pipes deliver coolant, enabling the coolant to absorb and exchange heat with the interior of the enclosure.
[0022] In one alternative implementation, the cooling assembly further includes:
[0023] A receiving slot is located at the bottom of the box.
[0024] The outlet is located at the bottom of the outer wall around the tank, suitable for discharging liquid from the container.
[0025] Beneficial effects: The containment tank can collect the condensate produced when the gas cools down during the heat exchange process inside the chamber. The condensate drips into the containment tank, and the outlet is located at the bottom of the outer wall around the chamber to prevent the condensate from continuing to accumulate inside the chamber, allowing for liquid discharge at any time.
[0026] In one alternative implementation, multiple power supply components are connected in parallel via a connecting pipe.
[0027] Beneficial effects: When the coolant is used to cool multiple power components, the parallel connection can ensure that the coolant temperature is the same for each power component, avoiding the situation where the temperature rises and the cooling efficiency decreases after the coolant has been used to cool different power components multiple times.
[0028] In one alternative embodiment, the enclosure further includes a bracket disposed within the enclosure and adapted to secure the power supply assembly.
[0029] Beneficial effects: The bracket provides structural support for the power supply components and fixes them in place, ensuring the stability of the overall structure.
[0030] In one alternative embodiment, the enclosure further includes a control module, which is disposed on a portion of the outer wall of the enclosure and electrically connected to the power supply assembly.
[0031] Beneficial effects: The control module can control the operation of the power supply components, enabling better and more efficient use of the power supply components.
[0032] In one alternative embodiment, one of the housing and the bracket is provided with a guide rail, and the other is provided with a guide groove. The guide rail and the guide groove are slidably engaged so that the bracket is slidably positioned relative to the housing.
[0033] Beneficial effects: The design of the guide rail and guide groove structure allows for the rapid installation and disassembly of the power supply components before and after processing through the relative sliding of the guide rail and guide groove, saving time and improving work efficiency. Attached Figure Description
[0034] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0035] Figure 1 This is a schematic diagram of one side of the dust explosion-proof power supply control module of this utility model;
[0036] Figure 2This is a schematic diagram of one side of the dust explosion-proof power supply output terminal of this utility model;
[0037] Figure 3 This is a schematic diagram of the internal support structure of the enclosure;
[0038] Figure 4 This is a schematic diagram of the interior of the dust explosion-proof box of this utility model;
[0039] Figure 5 for Figure 4 Enlarged view of a portion of point A in the middle;
[0040] Figure 6 This is a schematic diagram of one side of the internal cooling assembly of the dust explosion-proof power supply box of this utility model.
[0041] Explanation of reference numerals in the attached figures:
[0042] 1. Enclosure; 11. Control module; 12. Sealing plate; 13. Bracket;
[0043] 2. Connection component; 21. Input terminal; 22. Output terminal;
[0044] 3. Cooling assembly; 31. Receiving tank; 32. Cooling interface; 33. Discharge port; 34. Connecting pipe;
[0045] 4. Power supply components. Detailed Implementation
[0046] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0047] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0048] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0049] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.
[0050] The following is combined Figures 1 to 6 The following describes embodiments of the present invention.
[0051] According to an embodiment of the present invention, in one aspect, a dust explosion-proof power supply is provided, comprising:
[0052] The enclosure 1 has at least one power supply component 4 sealed inside it;
[0053] The connection component 2 includes an input terminal 21 and an output terminal 22, which are respectively disposed through the outer wall of the housing 1 and are sealed to the outer wall of the housing 1; the input terminal 21 and the output terminal 22 are adapted to electrically connect the power supply component 4 to an external circuit.
[0054] The cooling component 3 is partially disposed inside the housing 1. The cooling component 3 is disposed in contact with the power supply component 4 and is suitable for cooling the power supply component 4.
[0055] In this embodiment, the outer shell of the enclosure 1 is made of high-quality steel plate and fully welded, with excellent airtightness. The sealed structure can prevent the electric sparks generated inside the power supply component 4 from coming into contact with the combustible dust outside the enclosure 1, making it suitable for combustible dustproof environments in Zones 20, 21, and 22.
[0056] Furthermore, a lifting ring can be installed on the top of the housing 1 to facilitate the vertical transportation of the dust explosion-proof power supply, reducing the impact of adverse factors such as bumps or vibrations caused by manual handling on the power supply. At the same time, it avoids the risk to life of operators entering the potentially explosive dust environment.
[0057] Optionally, the volume of the enclosure 1 can be increased or decreased according to the volume of the power supply assembly 4, and the volume of the power supply assembly 4 can be determined according to the working requirements.
[0058] Furthermore, the input terminal 21 and output terminal 22 of the connection component 2 ensure the normal use of a conventional industrial power supply, enabling the power supply component 4 to perform effective input and output.
[0059] Furthermore, the cooling component 3 can cool the power supply component 4, which generates high heat during long-term operation, thereby increasing working time while ensuring work efficiency, reducing the probability of industrial power supply explosion in dusty environments, and improving the protection of user property and life safety.
[0060] The dust explosion-proof power supply of this utility model adopts a method of contacting the cooling component 3 with the power supply component 4, which enables the power supply component 4 placed inside the housing 1 to actively cool and dissipate heat, instead of relying solely on the passive heat dissipation of the surface of the power supply component 4 to the air, thereby improving the heat dissipation efficiency of the power supply component 4. At the same time, the structural design of the sealed housing 1 reduces the probability of combustible dust entering the housing 1, and avoids the explosion caused by the contact between the electric spark generated by the power supply component 4 and the combustible dust, thus improving the safety of the power supply.
[0061] In some embodiments, combined with Figure 1 As shown, the box 1 includes a sealing plate 12, which is disposed around the outer wall of the box 1 and is suitable for sealing the box 1.
[0062] The structural design of the sealing plate 12 can improve the sealing performance of the housing 1, reduce the probability of combustible dust entering the housing 1, and prevent the electrical sparks generated by the power supply component 4 from coming into contact with combustible dust and causing an explosion, thereby improving the safety of power supply use.
[0063] Optionally, the sealing plate 12 can be connected to the housing 1 by connecting the sealing plate 12 to the frame of the housing 1, thereby sealing the structure of the housing 1 through sealing connections between different walls of the housing 1.
[0064] In some embodiments, combined with Figure 2 As shown, the input terminal 21 includes a sealed connector, which is adapted to allow the conductive wire to pass through the housing 1 and be electrically connected to the power supply assembly 4.
[0065] The input terminal 21 adopts a sealed connector structure design, which avoids the explosion caused by the electric spark generated by the power supply component 4 inside the box coming into contact with flammable dust when the external conductive wire is connected to the inside of the box 1, thus improving the safety of power supply use.
[0066] As one implementation, the sealed connector can be a power input flange, or it can be adapted and replaced according to different power components 4.
[0067] In some embodiments, combined with Figure 2 As shown, the output terminal 22 includes a conductive bus, one end of which is located inside the housing 1 and the other end is located outside the housing 1, and the conductive bus is in sealed contact with the housing 1; the end of the conductive bus located inside the housing 1 is electrically connected to the power supply assembly 4.
[0068] The output terminal 22 adopts a conductive bus structure design, which enables the power supply to output effectively. At the same time, the structure design of the conductive bus in sealed contact with the housing 1 prevents flammable dust from entering the housing 1 from the output terminal and coming into contact with the electric spark generated by the power supply component 4, thus avoiding an explosion and improving the safety of the power supply.
[0069] As one implementation, the output terminal busbar is sealed to prevent electrical sparks from coming into contact with flammable dust and causing an explosion during the connection between the busbar and the load.
[0070] In some embodiments, combined with Figure 5 As shown, the cooling assembly 3 also includes:
[0071] Cooling interface 32, suitable for liquid input and output, is located on the outer wall of housing 1;
[0072] A connecting pipe 34 is installed inside the housing 1, and the connecting pipe 34 is connected to the cooling interface 32 and the power supply assembly 4 respectively.
[0073] The cooling component 3 is in contact with the power component 4, which enables the power component 4 placed inside the housing 1 to actively cool and dissipate heat, instead of passively dissipating heat by simply relying on the surface of the power component 4 to exchange heat with the air, thereby improving the heat dissipation efficiency of the power component 4; the cooling interface 32 and the connecting pipe 34 deliver coolant, which allows the coolant to absorb and exchange heat with the inside of the housing 1.
[0074] After the coolant is input through the cooling interface 32, it enters the connecting pipe and exchanges heat with the power component 4 connected to the connecting pipe 34, thereby achieving the purpose of cooling the power component 4.
[0075] As one implementation, the cooling interface 32 can be a flange interface, and different specifications can be selected according to the different flow rates of the required coolant to meet the power supply cooling requirements.
[0076] In some embodiments, combined with Figure 5 As shown, the cooling assembly 3 also includes:
[0077] The receiving groove 31 is provided at the bottom of the box body 1;
[0078] The outlet 33 is located at the bottom of the outer wall around the tank 1 and is suitable for discharging liquid from the container 31.
[0079] In this embodiment, the receiving tank 31 is set at the bottom of the box 1, so that the receiving tank 31 can collect the condensate generated by the gas cooling during the heat exchange process inside the box 1, so that the condensate drips and collects in the receiving tank 31, preventing the condensate from overflowing at will.
[0080] Furthermore, by setting an outlet 33 and placing the outlet 33 at the bottom of the outer wall around the box 1, the outlet 33 can be connected to the inside of the receiving tank 31 so as to discharge the liquid in the receiving tank 31.
[0081] Furthermore, a manual or electric control valve can be installed at the outlet 33 to allow for drainage as needed.
[0082] To prevent the condensate inside the housing 1 from accumulating and exceeding the upper limit, a liquid level alarm can be installed in the receiving tank 31 to issue an alarm when the condensate level rises to a certain level.
[0083] Furthermore, when an electrically controlled valve is installed at the outlet 33, the liquid level alarm and the electrically controlled valve can be associated with the control module to enable automatic liquid drainage.
[0084] In some embodiments, multiple power supply components 4 are connected in parallel by a connecting pipe 34.
[0085] When the coolant cools multiple power components 4, the parallel connection ensures that the coolant temperature is the same for each power component 4, avoiding the situation where the temperature rises and the cooling efficiency decreases after the coolant cools different power components 4 multiple times.
[0086] Optionally, the coolant can be water or liquid nitrogen, etc.
[0087] As a form of implementation, combined Figure 3 As shown, the enclosure 1 also includes a bracket 13, which is disposed inside the enclosure 1 and is suitable for fixing the power supply assembly 4.
[0088] The bracket 13 provides structural support for the power supply assembly 4 and fixes the power supply assembly 4 in place, ensuring the stability of the overall structure.
[0089] In some embodiments, combined with Figure 1 As shown, the enclosure 1 also includes a control module 11, which is located on part of the outer wall of the enclosure 1 and is electrically connected to the power supply assembly 4.
[0090] The control module 11 can control the power supply component 4, and the power supply component can be used more efficiently through the control module 11.
[0091] As one implementation, the control module 11 generally includes a three-display control head, a signal alarm indicator, and a viewing window.
[0092] In some embodiments, combined with Figure 1As shown, one of the housing 1 and the bracket 13 is provided with a guide rail, and the other is provided with a guide groove. The guide rail and the guide groove are slidably engaged so that the bracket 13 is slidably positioned relative to the housing 1.
[0093] The design of the guide rail and guide groove structure allows the dust explosion-proof power supply to be quickly installed and disassembled by the relative sliding of the guide rail and guide groove before and after processing, saving time and improving work efficiency.
[0094] Generally, the bracket 13 and the housing 1 can be fixed with bolts. The bolt connection structure can significantly improve the structural load-bearing capacity, reduce maintenance costs, and make the power supply component 4 fixed with high strength, avoiding the impact of vibration or impact on the power supply component 4, thereby reducing work efficiency.
[0095] Obviously, the above embodiments are merely examples for clear illustration and are not intended to limit the implementation. Although embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the present invention, and all such modifications and variations fall within the scope defined by the present invention.
Claims
1. A dust explosion-proof power supply, characterized in that, include: The enclosure (1) has at least one power supply component (4) sealed inside. The connection component (2) includes an input terminal (21) and an output terminal (22), which are respectively disposed through the outer wall of the housing (1) and sealed to the outer wall of the housing (1); the input terminal (21) and the output terminal (22) are adapted to electrically connect the power supply component (4) to an external circuit; The cooling component (3) is partially disposed inside the housing (1). The cooling component (3) is disposed in contact with the power supply component (4) and is suitable for cooling the power supply component (4).
2. The dust explosion-proof power supply according to claim 1, characterized in that, The housing (1) includes: A sealing plate (12) is provided around the outer wall of the box (1) to seal the box.
3. The dust explosion-proof power supply according to claim 1, characterized in that, The input terminal (21) includes a sealed connector adapted to allow a conductive wire to pass through the housing (1) and be electrically connected to the power supply assembly (4).
4. The dust explosion-proof power supply according to claim 1, characterized in that, The output terminal (22) includes a conductive busbar, one end of which is located inside the housing (1) and the other end is located outside the housing (1), and the conductive busbar is in sealed contact with the housing (1); the end of the conductive busbar located inside the housing (1) is electrically connected to the power supply assembly (4).
5. The dust explosion-proof power supply according to claim 1, characterized in that, The cooling assembly (3) also includes: A cooling port (32), suitable for liquid input and output, is provided on the outer wall of the housing (1); A connecting pipe (34) is disposed inside the housing (1), and the connecting pipe (34) is connected to the cooling interface (32) and the power supply assembly (4) respectively.
6. The dust explosion-proof power supply according to claim 4, characterized in that, The cooling assembly (3) also includes: A receiving groove (31) is provided at the bottom of the box body (1); The outlet (33) is located at the bottom of the outer wall of the box (1) and is suitable for discharging the liquid in the container (31).
7. The dust explosion-proof power supply according to claim 5, characterized in that, Multiple power supply components (4) are connected in parallel by the connecting pipe (34).
8. The dust explosion-proof power supply according to claim 1, characterized in that, The housing (1) also includes: A bracket (13) is disposed inside the housing (1) and is suitable for fixing the power supply assembly (4).
9. The dust explosion-proof power supply according to claim 1, characterized in that, The housing (1) also includes: The control module (11) is located on the outer wall of part of the enclosure (1) and is electrically connected to the power supply assembly (4).
10. The dust explosion-proof power supply according to claim 8, characterized in that, One of the housing (1) and the bracket (13) is provided with a guide rail, and the other is provided with a guide groove. The guide rail and the guide groove are slidably engaged so that the bracket (13) is slidably positioned relative to the housing (1).