Cable explosion-proof joint with heat dissipation structure

Abstract

The utility model relates to the technical field of explosion -proof joint, and disclose a cable explosion -proof joint with heat dissipation structure, first explosion -proof casing, second explosion -proof casing, the second explosion -proof casing sets up in first explosion -proof casing one side, mounting block, the mounting block is equipped with two groups, two groups mounting block fixed connection in first explosion -proof casing and second explosion -proof casing outer wall respectively, fin, the fin is equipped with several, the fin sets up in first explosion -proof casing and second explosion -proof casing outer wall, through the collaborative design of inner tube, heat conduction piece and fin, has built perfect heat dissipation channel, can fast cable joint generated heat conduction and radiate, compared with the device lacking heat dissipation structure currently, effectively avoided the problem of overhigh temperature in the box, reduced cable joint and insulation material aging speed, reduced short circuit, electric leakage and other electrical fault risk.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof connector technology, specifically to an explosion-proof cable connector with a heat dissipation structure. Background Technology

[0002] Explosion-proof cable joint boxes are specialized devices used to enclose and protect cable joints. They are widely used in flammable and explosive hazardous environments such as petroleum, chemical, and mining industries. Through special sealing and explosion-proof design, they effectively prevent external explosive gases, dust, and other hazardous substances from contacting internal electrical components. They also resist external damage such as mechanical impact and corrosion, preventing explosions caused by cable joint discharge or overheating, and ensuring the safe and stable operation of electrical systems.

[0003] Application No. 202221689365.6 discloses an explosion-proof box for cable joints. This explosion-proof box for cable joints has two pressure relief ports, and each pressure relief port has a sealing block on its inner wall. When inspecting the inside of the first and second housings, the sealing block can be pulled out of the pressure relief port for inspection. After the cable joint explodes, the internal pressure of the first and second housings will push the sealing block outward until the sealing block is detached from the pressure relief port, thereby completing the pressure relief of the inside of the first and second housings.

[0004] The aforementioned devices lack an effective heat dissipation structure. During long-term use, the heat generated by current transmission in the cable joints cannot be dissipated in time, leading to a continuous increase in the internal temperature of the box. High temperatures not only accelerate the aging of the cable joints and internal insulation materials, reducing electrical performance and increasing the risk of short circuits and leakage, but may also cause a sudden increase in internal pressure due to heat accumulation, resulting in the failure of the explosion-proof box seal or even bursting, which in turn can lead to serious safety accidents such as fires and explosions. Therefore, we propose a cable explosion-proof joint with a heat dissipation structure. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an explosion-proof cable connector with a heat dissipation structure, thus solving the aforementioned problems.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution: an explosion-proof cable connector with a heat dissipation structure, comprising:

[0007] First explosion-proof enclosure;

[0008] The second explosion-proof enclosure is disposed on one side of the first explosion-proof enclosure;

[0009] The mounting blocks are provided in two sets, and the two sets of mounting blocks are respectively fixedly connected to the outer walls of the first explosion-proof housing and the second explosion-proof housing.

[0010] A heat sink, wherein a plurality of heat sinks are provided, and the heat sinks are disposed on the outer walls of the first explosion-proof housing and the second explosion-proof housing;

[0011] A limiting component is installed on the outer walls of the first and second explosion-proof housings to limit the movement of the heat sink.

[0012] Preferably, an inner cylinder is provided between the first explosion-proof housing and the second explosion-proof housing.

[0013] Preferably, the limiting assembly includes a connecting rod, a magnetic rod, a bolt, a guide groove, a first iron block, a circular groove, and a second iron block;

[0014] The connecting rod is disposed on the side wall of the mounting block, the side wall of the mounting block is in contact with the outer wall of the heat sink, and the outer walls at both ends of the heat sink are in contact with the outer walls of the first explosion-proof housing and the second explosion-proof housing;

[0015] The magnet rod is fixedly connected to the side walls at both ends of the connecting rod;

[0016] The guide groove is located at the end of the mounting block away from the first explosion-proof housing, and the first iron block is slidably connected to the inner wall of one end of the guide groove;

[0017] The bolt is located between the side wall of the first iron block and the side wall of the mounting block;

[0018] The circular grooves are respectively formed on the side wall of the first iron block and the side wall of the second iron block;

[0019] The second iron block is fixedly connected to the end of the mounting block away from the first iron block;

[0020] The magnet rod is matched with the circular groove.

[0021] Preferably, both the inner walls of the first explosion-proof housing and the second explosion-proof housing are provided with heat-conducting plates, and there are a plurality of heat-conducting plates.

[0022] Preferably, the inner wall of the heat-conducting sheet is fixedly sleeved on the outer wall of the inner cylinder.

[0023] Preferably, both the first explosion-proof housing and the second explosion-proof housing have threaded holes on their outer walls.

[0024] Compared with the prior art, this utility model provides a cable explosion-proof connector with a heat dissipation structure, which has the following beneficial effects:

[0025] 1. High-efficiency heat dissipation: Through the coordinated design of the inner cylinder, heat-conducting fins, and heat sinks, a complete heat dissipation channel is constructed, which can quickly conduct and dissipate the heat generated by the cable joint. Compared with existing devices that lack heat dissipation structures, it effectively avoids the problem of excessive temperature inside the box, reduces the aging speed of cable joints and insulation materials, and reduces the risk of electrical faults such as short circuits and leakage. The magnetic rod and the circular groove in the limiting component, as well as the bolt fixing the first iron block, ensure the stability of the heat sink after installation. Under the condition that the device is subjected to external vibration, collision, etc., the heat sink is not easy to loosen or fall off, ensuring the continuous and stable performance of the heat dissipation function, and also enhancing the overall reliability of the explosion-proof joint structure.

[0026] 2. Flexible and adjustable: Through the cooperation of components such as connecting rods, magnetic rods, and bolts, the number of heat sinks can be flexibly increased according to actual heat dissipation needs, so that the explosion-proof connector can adapt to the heat dissipation requirements of different working scenarios, improving the applicability and versatility of the device. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0028] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0029] Figure 3 This is a schematic diagram of the internal structure of this utility model;

[0030] Figure 4 for Figure 2 A magnified view of part A in the diagram;

[0031] Figure 5 for Figure 2 A magnified view of part B in the diagram.

[0032] In the figure: 1. First explosion-proof housing; 2. Second explosion-proof housing; 3. Threaded hole; 4. Mounting block; 5. Heat-conducting plate; 6. Inner cylinder; 7. Heat sink; 8. Connecting rod; 9. Magnet rod; 10. Bolt; 11. Guide groove; 12. First iron block; 13. Circular groove; 14. Second iron block. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figure 1-5An explosion-proof cable connector with a heat dissipation structure, including

[0035] First explosion-proof enclosure 1;

[0036] The second explosion-proof enclosure 2 is disposed on one side of the first explosion-proof enclosure 1;

[0037] Mounting block 4, there are two sets of mounting blocks 4, and the two sets of mounting blocks 4 are respectively fixedly connected to the outer walls of the first explosion-proof housing 1 and the second explosion-proof housing 2.

[0038] Heat sink 7, several heat sinks 7 are provided, and heat sinks 7 are disposed on the outer walls of the first explosion-proof housing 1 and the second explosion-proof housing 2;

[0039] A limiting component is provided on the outer wall of the first explosion-proof housing 1 and the second explosion-proof housing 2 to limit the heat sink 7;

[0040] The first explosion-proof housing 1 and the second explosion-proof housing 2 are joined to form the explosion-proof body, and are connected and fixed through the threaded holes 3 on the outer wall. The mounting block 4 is fixed to the outer wall of the two housings, providing a mounting base for the heat sink 7 and the limiting assembly. The cable passes through the inner cylinder 6 between the first and second explosion-proof housings, and the connector is placed inside and protected. During operation, the heat generated by the cable is transferred sequentially through the inner cylinder 6 and the heat-conducting plate 5 to the first and second explosion-proof housings, and finally dissipated to the outside by the heat sink 7 on the outer wall. The connecting rod 8, the magnetic rod 9 and other components in the limiting assembly cooperate to realize the installation and limiting of the heat sink 7.

[0041] An inner cylinder 6 is provided between the first explosion-proof housing 1 and the second explosion-proof housing 2;

[0042] When the cable generates heat during operation, the heat is directly transferred to the inner cylinder 6. The inner cylinder 6 then conducts the heat to the first and second explosion-proof shells through the heat-conducting plates 5 fixedly fitted to its outer wall, providing a stable path for the transfer and dissipation of heat.

[0043] The limiting assembly includes a connecting rod 8, a magnetic rod 9, a bolt 10, a guide groove 11, a first iron block 12, a circular groove 13, and a second iron block 14;

[0044] The connecting rod 8 is set on the side wall of the mounting block 4. The side wall of the mounting block 4 is in contact with the outer wall of the heat sink 7. The outer walls of both ends of the heat sink 7 are in contact with the outer walls of the first explosion-proof housing 1 and the second explosion-proof housing 2.

[0045] The magnet rod 9 is fixedly connected to the side walls at both ends of the connecting rod 8;

[0046] The guide groove 11 is located at the end of the mounting block 4 away from the first explosion-proof housing 1, and the first iron block 12 is slidably connected to the inner wall of one end of the guide groove 11.

[0047] Bolt 10 is located between the side wall of the first iron block 12 and the side wall of the mounting block 4;

[0048] The circular grooves 13 are respectively formed on the side wall of the first iron block 12 and the side wall of the second iron block 14;

[0049] The second iron block 14 is fixedly connected to the end of the mounting block 4 away from the first iron block 12;

[0050] Magnet rod 9 matches the circular groove 13;

[0051] When it is necessary to add heat sink 7, rotate bolt 10 to loosen the fixation on the first iron block 12, pull connecting rod 8 to disengage magnet rod 9 from the circular groove 13 on the first iron block 12 and the second iron block 14, and release the fixation on heat sink 7; slide the middle of heat sink 7 into the guide groove 11 on mounting block 4, adjust the number, put the first iron block 12 back into the guide groove 11, tighten bolt 10 to fix it, at this time magnet rod 9 is inserted into circular groove 13, and fixed by magnetic attraction, so that the side wall of connecting rod 8 abuts against heat sink 7 to complete the limit; through the coordinated design of inner cylinder 6, heat-conducting plate 5 and heat sink 7, a perfect heat dissipation channel is constructed. It can quickly conduct and dissipate the heat generated by the cable joint. Compared with existing devices that lack heat dissipation structure, it effectively avoids the problem of excessive temperature inside the box, reduces the aging speed of cable joints and insulation materials, and reduces the risk of electrical faults such as short circuits and leakage. The magnetic rod 9 and the circular groove 13 in the limit component, as well as the bolt 10 fixing the first iron block 12, ensure the stability of the heat sink 7 after installation. Under the condition that the device is subjected to external vibration, collision, etc., the heat sink 7 is not easy to loosen and fall off, ensuring the continuous and stable performance of the heat dissipation function, and also enhancing the overall reliability of the explosion-proof joint structure.

[0052] Both the inner walls of the first explosion-proof housing 1 and the second explosion-proof housing 2 are provided with heat-conducting plates 5, and there are several heat-conducting plates 5.

[0053] The heat-conducting plates 5 on the inner walls of the first explosion-proof housing 1 and the second explosion-proof housing 2 are closely attached to the outer wall of the inner cylinder 6. When the inner cylinder 6 generates heat due to the operation of the cable, the heat-conducting plates 5, with their excellent thermal conductivity, quickly conduct the heat from the inner cylinder 6 to the inner walls of the first and second explosion-proof housings, and then the heat dissipation plates 7 on the outer wall of the housing further dissipate the heat, forming an efficient heat conduction path.

[0054] The heat-conducting plate 5 is fixedly sleeved on the outer wall of the inner cylinder 6;

[0055] The heat generated by the cable is directly transferred to the inner cylinder 6, and can be quickly conducted to the first and second explosion-proof shells through the heat-conducting plate 5 without obstruction, so that the heat is transferred with the shortest path and the highest efficiency.

[0056] Both the outer walls of the first explosion-proof housing 1 and the second explosion-proof housing 2 are provided with threaded holes 3;

[0057] The threaded holes 3 on the outer walls of the first explosion-proof housing 1 and the second explosion-proof housing 2 are connected together by bolts or other connecting parts.

[0058] Structural Description: First explosion-proof housing 1: Connects with second explosion-proof housing 2 to form an explosion-proof space. The outer wall is provided with threaded holes 3, mounting blocks 4 and heat sinks 7, and the inner wall is equipped with heat-conducting plates 5; it connects to the other housing through the threaded holes 3, protecting the internal cable joints and providing a basis for heat dissipation, effectively blocking external hazardous substances.

[0059] The second explosion-proof enclosure 2: It works with the first explosion-proof enclosure 1 to form a complete explosion-proof enclosure; it also has structures such as threaded holes 3. The two are sealed after being connected through the threaded holes 3 to prevent the intrusion of hazardous substances and ensure that the cable joint operates in a safe environment.

[0060] Threaded holes 3: Distributed on the outer walls of both explosion-proof housings, used for installing bolts. Bolts pass through threaded holes 3 to fix the housing, forming a stable explosion-proof structure, ensuring airtightness, facilitating assembly and disassembly, resisting external impacts, and preventing the entry of flammable and explosive substances.

[0061] Mounting Block 4: Two sets of mounting blocks 4 are fixed to the outer walls of the two explosion-proof housings, providing a mounting base for the heat sink 7 and the limiting component; the guide groove 11 on it cooperates with the limiting component to realize the installation, fixing and quantity adjustment of the heat sink 7.

[0062] Heat-conducting plate 5: Located on the inner wall of the two explosion-proof shells, and fitted onto the outer wall of the inner cylinder 6. With its high thermal conductivity, it quickly conducts heat from the inner cylinder 6 to the shell, and is a key component for transferring heat from the cable connector to the heat sink 7, thus improving heat dissipation efficiency.

[0063] Inner cylinder 6: Located between the two explosion-proof shells, it allows cables to pass through and accommodates cable joints; it provides an independent protective space and serves as the starting point for heat transfer, working in conjunction with the heat-conducting plate 5 to promptly dissipate the heat generated by the cable joints.

[0064] Heat sink 7: Installed on the outer wall of the two explosion-proof housings, the number of which can be adjusted as needed; it works in conjunction with heat conduction plate 5 and explosion-proof housing to dissipate heat from the inside to the outside, reduce the temperature of the device, and prevent the cable joints from being damaged due to overheating.

[0065] Connecting rod 8: It is located on the side wall of the mounting block 4 and contacts the heat sink 7 for limiting its position; it is connected to magnetic rods 9 at both ends, which cooperate with the circular grooves 13 of the first iron block 12 and the second iron block 14 to realize the installation and removal of the heat sink 7.

[0066] Magnetic rod 9: Fixed to both ends of connecting rod 8 and matched with circular groove 13; using magnetic attraction, it helps connecting rod 8 to fix heat sink 7, ensuring that heat sink 7 is stable during use and will not fall off due to vibration, etc.

[0067] Bolt 10: Connects the first iron block 12 to the mounting block 4 and is used to fix the first iron block 12; by turning the bolt 10, the fixed state of the first iron block 12 in the guide groove 11 is controlled, thereby realizing the installation and disassembly control of the heat sink 7.

[0068] Guide groove 11: At one end of the mounting block 4, it accommodates the first iron block 12 and the heat sink 7; it provides a track for the sliding of the first iron block 12, guides the installation of the heat sink 7, and assists in completing the installation and quantity adjustment of the heat sink 7.

[0069] First iron block 12: slides in guide groove 11 and is fixed by bolt 10; cooperates with second iron block 14, and is attracted to magnetic rod 9 through circular groove 13, adjusting and fixing heat sink 7 in limiting assembly.

[0070] Circular groove 13: On the side wall of the first iron block 12 and the second iron block 14, it matches the magnetic rod 9; by adsorbing the magnetic rod 9, the connecting rod 8 is fixed, thereby limiting the heat sink 7 and ensuring its stability after installation.

[0071] The second iron block 14 is fixed on the mounting block 4 and cooperates with the first iron block 12; it is attracted to the magnetic rod 9 through the circular groove 13 and assists in the installation, fixing and limiting of the heat sink 7 in the limiting assembly.

[0072] The first explosion-proof housing 1 and the second explosion-proof housing 2 are connected and fixed through the threaded hole 3 to form the main structure of the explosion-proof joint. The cable passes through the inner cylinder 6 to achieve cable positioning and installation. The inner cylinder 6 provides a stable space for the cable and, together with the explosion-proof housing, creates a protective environment. When the cable joint generates heat due to current transmission, the heat is first transferred to the inner cylinder 6. The heat-conducting plates 5 fixedly sleeved on the outer wall of the inner cylinder 6 quickly conduct the heat to the first explosion-proof housing 1 and the second explosion-proof housing 2. Subsequently, several heat dissipation fins 7 set on the outer walls of the first explosion-proof housing 1 and the second explosion-proof housing 2 dissipate the heat. To effectively dissipate internal heat in the external environment, when it is necessary to add heat sink 7, rotate bolt 10 to release the fixation of the first iron block 12, pull connecting rod 8 to make the magnet rod 9 disengage from the circular groove 13 on the first iron block 12 and the second iron block 14, remove the first iron block 12 from the guide groove 11, slide the middle of the heat sink 7 into the guide groove 11, after installation, put the first iron block 12 back into the guide groove 11 and fix it with bolt 10, the connecting rod 8 drives the magnet rod 9 to insert into the circular groove 13, and use the adsorption force of the magnet rod 9 and the limiting effect of the connecting rod 8 to achieve a stable fixation of the heat sink 7.

[0073] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cable explosion-proof connector with a heat dissipation structure, characterized in that, include: First explosion-proof enclosure (1); The second explosion-proof housing (2) is disposed on one side of the first explosion-proof housing (1); Mounting block (4), the mounting block (4) is provided in two sets, the two sets of mounting blocks (4) are respectively fixedly connected to the outer walls of the first explosion-proof shell (1) and the second explosion-proof shell (2); Heat sink (7), a plurality of heat sinks (7) are provided, and the heat sinks (7) are disposed on the outer walls of the first explosion-proof housing (1) and the second explosion-proof housing (2); The limiting component is installed on the outer wall of the first explosion-proof housing (1) and the second explosion-proof housing (2) to limit the heat sink (7).

2. The explosion-proof cable connector with a heat dissipation structure according to claim 1, characterized in that: An inner cylinder (6) is provided between the first explosion-proof housing (1) and the second explosion-proof housing (2).

3. The explosion-proof cable connector with a heat dissipation structure according to claim 1, characterized in that: The limiting assembly includes a connecting rod (8), a magnetic rod (9), a bolt (10), a guide groove (11), a first iron block (12), a circular groove (13), and a second iron block (14). The connecting rod (8) is disposed on the side wall of the mounting block (4), the side wall of the mounting block (4) is in contact with the outer wall of the heat sink (7), and the outer walls of both ends of the heat sink (7) are in contact with the outer walls of the first explosion-proof housing (1) and the second explosion-proof housing (2); The magnet rod (9) is fixedly connected to the side walls at both ends of the connecting rod (8); The guide groove (11) is located at one end of the mounting block (4) away from the first explosion-proof housing (1), and the first iron block (12) is slidably connected to the inner wall of one end of the guide groove (11); The bolt (10) is located between the side wall of the first iron block (12) and the side wall of the mounting block (4); The circular grooves (13) are respectively opened on the side wall of the first iron block (12) and the side wall of the second iron block (14); The second iron block (14) is fixedly connected to the end of the mounting block (4) away from the first iron block (12); The magnet rod (9) is matched with the circular groove (13).

4. The explosion-proof cable connector with a heat dissipation structure according to claim 1, characterized in that: The inner walls of the first explosion-proof housing (1) and the second explosion-proof housing (2) are provided with heat-conducting plates (5), and there are several heat-conducting plates (5).

5. The explosion-proof cable connector with a heat dissipation structure according to claim 4, characterized in that: The inner wall of the heat-conducting sheet (5) is fixedly sleeved on the outer wall of the inner cylinder (6).

6. The explosion-proof cable connector with a heat dissipation structure according to claim 1, characterized in that: Both the first explosion-proof housing (1) and the second explosion-proof housing (2) have threaded holes (3) on their outer walls.

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