High-strength relay mounting box

Abstract

The utility model relates to a high-strength relay mounting box which comprises a box body and a mounting seat, a sealing cover is arranged at the top of the box body, a placing cavity for placing a relay is formed in the box body, reinforcing ribs are arranged in the placing cavity, and the reinforcing ribs are longitudinally and transversely arranged in a crossed manner to form a latticed structure. The mounting seat is fixedly mounted in the placement cavity through bolts, and the relay is fixedly mounted on the mounting seat. The box body is made of iron, and the mounting seat is made of plastic. The box body is made of an iron material, so that the mechanical strength is obviously higher than that of a traditional plastic protection box, and the box can bear larger external force impact and long-term vibration and is not easy to crack and damage.

Description

Technical Field

[0001] This utility model relates to the field of relay box technology, and specifically to a high-strength relay mounting box. Background Technology

[0002] A relay is an electrical control device that causes a predetermined step change in the controlled quantity in the electrical output circuit when the input quantity changes to a specified level. It has an interactive relationship between the control system and the controlled system and is usually used in automated control circuits. In fact, it is an "automatic switch" that uses a small current to control a large current.

[0003] Currently, most relay protection boxes widely used in the market are made of plastic. Plastic has limited mechanical strength, and it is prone to cracking and damage when subjected to external impacts or prolonged vibration. This makes it unable to provide stable and reliable protection for the internal relays, affecting their normal operation and even leading to power system failures. Furthermore, plastic has poor heat resistance. When the relays generate heat during prolonged operation or in high ambient temperatures, the plastic protection boxes are prone to deformation and aging. This not only reduces the protective function of the box but may also cause serious problems such as short circuits in internal electrical components. Utility Model Content

[0004] In view of the above-mentioned prior art, in order to solve the problem that the plastic protective box has limited mechanical strength and is prone to cracking and damage when subjected to external impact or long-term vibration, this application proposes a high-strength relay mounting box.

[0005] This application provides a high-strength relay mounting box, which adopts the following technical solution:

[0006] A high-strength relay mounting box includes a protective box and a mounting base. The protective box includes a box body and a cover. The box body is provided with a placement cavity for placing the relay. The mounting base is fixedly installed in the placement cavity, and the relay is installed on the mounting base.

[0007] By adopting the above technical solution, the mounting base provides a stable mounting foundation for the relay. The mounting base is fixedly installed in the placement cavity, which can firmly position the relay and prevent the relay from shifting or colliding due to vibration and shaking during equipment operation, thus ensuring its normal operation.

[0008] Preferably, the cover is provided with a sealing groove, and a sealing gasket is provided in the sealing groove; when the cover is closed with the box body, the top of the box body is located in the sealing groove and abuts against the sealing groove.

[0009] By adopting the above technical solution, the sealing groove and the sealing gasket work together to form an effective sealing barrier. In the working environment, whether it is an industrial site with dust and moisture, or a special environment exposed to corrosive gases, this sealing structure can prevent external impurities from entering the protective box. In a high-humidity environment, moisture cannot pass through the tight seal between the sealing groove and the sealing gasket, avoiding problems such as short circuits and corrosion of the relay due to moisture, thereby ensuring the stable electrical performance of the relay and extending its service life.

[0010] Preferably, the box body is provided with a plurality of connecting blocks, which are evenly distributed around the outer wall of the box body on the top of the box body; the cover is provided with a plurality of protrusions around its circumference, each of which has a connecting groove, and the number of connecting blocks and connecting grooves are opposite; when the cover is closed to the box body, the connecting groove is fitted onto the connecting block, and a locking member fixed to the connecting block is provided in the connecting groove.

[0011] By adopting the above technical solution, multiple evenly distributed connecting blocks and grooves can evenly distribute the connection force between the cover and the housing, avoiding localized stress concentration. During equipment operation, even under significant vibration or shaking, the cooperation of the connecting blocks and grooves ensures that the cover will not easily detach from the housing, effectively protecting the internal relays. This design is also very convenient for installation and disassembly; installers can quickly align the cover with the housing before proceeding to the next fixing operation, improving work efficiency.

[0012] Preferably, the locking element is a bolt, and the connecting block has a threaded connection hole adapted to the bolt.

[0013] By adopting the above technical solution, the fit between the bolt and the threaded connection hole provides a reliable tightening force. After the bolt is tightened, the connecting groove and the connecting block are firmly fixed together, ensuring the secure connection between the cover and the box. Compared with some other connection methods, bolted connections have better stability and repeatability. When the protection box needs to be disassembled and installed multiple times for relay maintenance and replacement, the bolted connection will not reduce the connection effect due to frequent operations and can always maintain good tightening performance.

[0014] Preferably, a mounting platform is provided at the bottom of the outer wall of the box, and the mounting platform has connection holes for connecting to external mechanisms.

[0015] By adopting the above technical solution, the design of the mounting platform and connection holes greatly facilitates the installation of the protection box. Depending on different usage scenarios and equipment requirements, bolts, screws, and other connectors can be used to install the protection box on various external structures such as equipment racks and control cabinets. This installation method ensures that the protection box maintains a stable position during equipment operation, preventing vibration or displacement from affecting the normal operation of internal relays.

[0016] Preferably, the outer wall of the housing has multiple cable entry and exit holes for connecting external cables to the relay.

[0017] By adopting the above technical solution, the cable entry / exit hole provides a clear channel for connecting external cables to relays, facilitating wiring operations. In actual electrical system installations, installers can quickly and accurately guide external cables through the cable entry / exit hole into the protection box to connect with the relays, avoiding the mess and tangling caused by haphazard cable arrangement within the box. This makes the wiring neater and more orderly, facilitating later inspection, maintenance, and troubleshooting.

[0018] Preferably, a cable guard ring is provided on the cable inlet / outlet hole.

[0019] By adopting the above technical solution, cable guard rings can effectively prevent cable wear when passing through cable entry and exit holes. During equipment operation, cables may frequently rub against the edges of holes due to their own shaking, equipment vibration, etc. Long-term friction can easily damage the cable insulation layer, leading to safety problems such as short circuits. Cable guard rings can act as buffers and isolate, reducing friction between the cable and the hole edges, protecting the cable insulation layer from damage, ensuring the normal service life and electrical performance of the cable, and reducing the failure rate caused by cable damage.

[0020] Preferably, a heat dissipation grille is provided on the side of the housing away from the cable inlet / outlet hole.

[0021] By adopting the above technical solution and setting up heat dissipation grilles, heat dissipation can be achieved, preventing the relay from overheating and causing damage.

[0022] In summary, this application includes at least one of the following beneficial technical effects:

[0023] 1. The mounting base provides a stable mounting foundation for the relay. The mounting base is fixedly installed in the placement cavity, which can firmly position the relay and prevent the relay from shifting or colliding due to vibration and shaking during equipment operation, thus ensuring its normal operation.

[0024] 2. The heat dissipation holes effectively dissipate the heat generated during relay operation, preventing heat buildup inside the housing and overheating, which could affect relay performance and lifespan. The dust filter effectively filters airborne dust particles, preventing dust from entering the protective housing through the heat dissipation holes. In dusty working environments, the dust filter intercepts dust, preventing it from accumulating on or inside the relay, thus ensuring unaffected heat dissipation. It also prevents electrical faults caused by dust, such as poor contact or short circuits, ensuring reliable relay operation.

[0025] 3. Cable guards effectively prevent cable wear when passing through cable entry and exit holes. During equipment operation, cables may frequently rub against the edges of the holes due to their own movement and equipment vibration. Prolonged friction can damage the cable insulation layer, leading to short circuits and other safety issues. Cable guards act as buffers and isolate, reducing friction between the cable and the hole edges, protecting the cable insulation layer from damage, ensuring the cable's normal service life and electrical performance, and reducing the failure rate caused by cable damage. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is an exploded view of this utility model;

[0028] Figure 3 This utility model is a schematic diagram showing the overall structure of the bottom of the cap;

[0029] Figure 4 This utility model is a schematic diagram of the overall structure of the mounting base.

[0030] Reference numerals: 1. Box body; 2. Mounting base; 21. Support leg; 3. Cover; 31. Sealing groove; 32. Sealing gasket; 4. Placement cavity; 5. Connecting block; 6. Protrusion; 61. Connecting groove; 7. Locking element; 8. Threaded connection hole; 9. Fixing block; 10. Limiting post; 101. Limiting plate; 11. Cable inlet / outlet hole; 12. Cable guard ring; 13. Heat dissipation grille; 14. Mounting platform; 141. Connecting hole. Detailed Implementation

[0031] This application discloses a high-strength relay mounting box.

[0032] A high-strength relay mounting box, as shown in the reference. Figure 1 and Figure 2The device includes a housing 1 and a mounting base 2. A cover 3 is provided on the top of the housing 1, and a placement cavity 4 for placing the relay is formed inside the housing 1. The mounting base 2 is fixedly installed in the placement cavity 4 by bolts, and the relay is fixedly installed on the mounting base 2. In this embodiment, the housing 1 is made of iron, and the mounting base 2 is made of plastic.

[0033] Specifically, multiple connecting blocks 5 are provided on the outer wall of the box body 1, and the multiple connecting blocks 5 are evenly distributed around the top of the box body 1. Multiple protrusions 6 are provided around the outer wall of the cover 3, and connecting grooves 61 are provided on the protrusions 6. The number of connecting grooves 61 is adapted to the number of connecting blocks 5, and a reinforcing rib structure is provided in the connecting grooves 61. When the cover 3 is closed with the box body 1, the connecting grooves 61 are fitted with the connecting blocks 5. The two sides of the cover 3 near the protrusions 6 protrude outward along the bottom edge. The protruding edge can increase the contact area between the cover 3 and the fingers, which can effectively improve the grip friction when the operator opens and closes the cover 3. Even when wearing gloves or with wet hands, the installation and removal of the cover 3 can be completed more easily.

[0034] A locking element 7, which is a bolt, is provided in the connecting groove 61 to fix and cooperate with the connecting block 5. The bolt passes through the connecting groove 61, and multiple connecting blocks 5 are provided with threaded connection holes 8 to cooperate with the bolt. When the cover 3 and the box body 1 are closed, the connecting groove 61 is fitted with the connecting block 5 and is fixed by the bolt and the threaded connection hole 8. During installation, the cover 3 and the box body 1 can be quickly and initially positioned, and then fixed by the bolt to complete the installation. During disassembly, the cover 3 and the box body 1 can be easily separated by simply unscrewing the bolt, which facilitates the inspection and replacement of the internal relays and improves work efficiency.

[0035] Reference Figure 3 The bottom surface of the cover 3 has a sealing groove 31 that matches the top of the box 1, and a sealing gasket 32 ​​is installed inside the sealing groove 31. When the cover 3 is closed to the box 1, the top of the box 1 is located inside the sealing groove 31 and abuts against it. During equipment operation, the relay protection box may be subjected to vibration or slight impact. The tight contact between the sealing groove 31 and the top of the box 1, through the setting of the sealing gasket 32, can play a certain role in buffering.

[0036] Reference Figure 2 and Figure 4 Specifically, four fixing blocks 9 are provided on the bottom wall of the inner box 1, and threaded connection holes 8 are provided on the fixing blocks 9. Four support legs 21 are provided around the bottom of the mounting base 2, and bolts that form a threaded connection with the threaded connection holes 8 are passed through the support legs 21.

[0037] Furthermore, the mounting base 2 is a rectangular plate, with limit posts 10 at each of the four corners of its top surface. Limit plates 101 are installed on the side walls of the limit posts 10 near the relay, forming a rectangular limiting area. The relay is located within this limiting area, with its outer side wall abutting against the limit plate 101. During installation, the relay can be quickly snapped into the inner limiting area, ensuring accurate positioning of the relay on the mounting base 2 and preventing wiring errors or poor contact due to installation deviations.

[0038] The relay has a through hole, and the mounting base 2 has a threaded connection hole 8 corresponding to the through hole. A bolt passes through the through hole and is bolted to the threaded connection hole 8 for fixation.

[0039] Specifically, the outer wall of the housing 1 has multiple cable entry / exit holes 11, which are connected to the placement cavity 4. Cable guard rings 12 are installed on the cable entry / exit holes 11. The cable entry / exit holes 11 are used for external cables to pass through and connect to the relay inside the placement cavity 4. The cable guard rings 12 effectively prevent the cables from being worn when passing through the cable entry / exit holes 11. In actual use, cables may frequently rub against the edges of the holes due to equipment vibration, self-shaking, etc. Prolonged friction can easily damage the cable insulation layer, leading to short circuits and other safety issues. The cable guard rings 12 act as a buffer and isolation mechanism, protecting the cable insulation layer from damage, ensuring the normal service life and electrical performance of the cable, and reducing the failure rate caused by cable damage.

[0040] Furthermore, a heat dissipation grille 13 is provided on the outer wall of the housing 1 on the side opposite to the cable inlet / outlet hole 11. During operation, the relay generates heat; if this heat cannot be dissipated in time, the temperature inside the housing 1 will rise. The heat dissipation grille 13 increases the contact area between the housing 1 and the outside air, accelerating airflow and allowing the heat inside the housing 1 to dissipate more quickly into the external environment, preventing excessive temperature from affecting the normal operation and lifespan of the relay.

[0041] Mounting platforms 14 are provided on both sides of the housing 1, and the mounting platforms 14 have connection holes 141 for connecting to external mechanisms. The connection holes 141 on the mounting platforms 14 provide an interface for connecting the relay protection box to external mechanisms, and the protection box can be securely installed in equipment racks, control cabinets, and other locations using bolts, screws, and other connectors. This design ensures that the protection box remains stable during equipment operation, preventing the normal operation of internal relays from being affected by shaking or displacement, thus enhancing the stability and reliability of the entire system.

[0042] The implementation principle of the application embodiment is as follows: The housing 1 is made of iron, which has a much higher mechanical strength than common plastic materials. When faced with external impacts or long-term equipment vibration, the iron housing 1 can withstand greater forces and is less prone to cracking or damage. The mounting base 2 is made of plastic, which is a good electrical insulator. Using a plastic mounting base 2 effectively prevents leakage between the relay and the metal housing 11. The mounting base 2 is fixed inside the placement cavity 4, providing a stable mounting foundation for the relay and preventing it from shifting or colliding during equipment operation. The sealing groove 31 and sealing gasket 32 ​​on the cover 3 cooperate to form a sealing barrier, preventing external impurities from entering. The connecting block 5 on the housing 1 cooperates with the protrusion 6, connecting groove 61, and bolts on the cover 3, making the connection firm and facilitating installation and disassembly. The mounting platform 14 and connecting hole 141 at the bottom of the outer wall of the housing 1 facilitate the installation of the protective box on external mechanisms, ensuring its stability. The heat dissipation grille 13 on the side wall of the housing 1 can dissipate heat in a timely manner, preventing excessive temperature from affecting the normal operating performance and service life of the relay. The cable entry and exit holes 11 on the box 1 facilitate cable routing, and the cable guard rings 12 inside the holes can prevent cable wear and ensure normal use and electrical performance of the cables.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A high-strength relay mounting box, characterized in that, The device includes a housing (1) and a mounting base (2). The top of the housing (1) is provided with a cover (3). A placement cavity (4) for placing a relay is formed inside the housing (1). The mounting base (2) is fixedly installed in the placement cavity (4). The relay is installed on the mounting base (2). The housing (1) is made of metal.

2. The high-strength relay mounting box according to claim 1, characterized in that, The cover (3) is provided with a sealing groove (31), and a sealing gasket (32) is provided in the sealing groove (31); when the cover (3) is closed with the box body (1), the top of the box body (1) is located in the sealing groove (31) and abuts against the sealing groove (31).

3. A high-strength relay mounting box according to claim 2, characterized in that, The box body (1) is provided with a plurality of connecting blocks (5), which are evenly distributed around the outer wall of the box body (1) on the top of the box body (1); the outer wall of the cover (3) is provided with a plurality of protrusions (6), which are provided with connecting grooves (61), and the number of connecting blocks (5) and connecting grooves (61) are opposite; when the cover (3) is closed to the box body (1), the connecting grooves (61) are fitted onto the connecting blocks (5), and a locking member (7) fixed to the connecting blocks (5) is provided in the connecting grooves (61).

4. A high-strength relay mounting box according to claim 3, characterized in that, The locking element (7) is a bolt, and the connecting block (5) has a threaded connection hole (8) that is compatible with the bolt.

5. A high-strength relay mounting box according to claim 1, characterized in that, The bottom of the outer wall of the box (1) is provided with a mounting platform (14), and the mounting platform (14) is provided with a connection hole (141) for connecting to an external mechanism.

6. A high-strength relay mounting box according to claim 1, characterized in that, The outer wall of the box (1) is provided with multiple cable entry and exit holes (11) for connecting external cables to relays.

7. A high-strength relay mounting box according to claim 6, characterized in that, A cable guard ring (12) is provided inside the cable inlet / outlet hole (11).

8. A high-strength relay mounting box according to claim 1, characterized in that, A heat dissipation grille (13) is provided on the side of the box (1) away from the cable inlet / outlet hole (11).

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