Anti-electromagnetic interference power electronic shielding device

Abstract

The invention discloses an anti-electromagnetic interference power electronic shielding device, and belongs to the field of shielding devices, and the shielding device comprises a shielding device body, an antenna disposed at the upper end of the shielding device body, and heat dissipation holes disposed at one side of the shielding device body. The protection structure is arranged on the shielding equipment body and used for protecting the shielding equipment body in the carrying process, and the protection structure comprises a base fixedly arranged at the lower end of the shielding equipment body, protection plates clamped to the two sides of the shielding equipment body and hinged to the base, and locking pieces arranged at the ends, away from the base, of the protection plates; the opposite ends of the two protection plates abut against each other. And through the design of the protection structure, the damage caused by external collision or scraping in the carrying process of the shielding equipment body is effectively avoided, and the service life of the equipment is prolonged. And the protective shell can completely cover the shielding equipment body in a closed state, so that external dust and impurities are effectively prevented from invading, and the internal part of the equipment is kept clean.

Description

Technical Field

[0001] The present application relates to the technical field of shielding devices, and in particular to a power electronic shielding device that resists electromagnetic interference. Background Art

[0002] With the rapid development of power electronics technology, power electronic shielding devices that resist electromagnetic interference are increasingly used in various electronic devices. Such shielding devices usually use alloy materials with good conductive properties (such as copper, aluminum, and steel) to make the shell to ensure that it has a good shielding effect, effectively resists external electromagnetic interference, and protects the normal operation of internal electronic components.

[0003] However, in actual application, the shielding device is easily scratched by foreign objects during carrying or transportation due to the lack of necessary protective devices on its outer surface, resulting in scratches or damage on the outer shell surface. This physical damage not only affects the aesthetics of the shielding device, but more importantly, it may reduce its shielding effect and weaken its ability to protect against electromagnetic interference.

[0004] Secondly, existing shielding devices are often designed with heat dissipation holes to dissipate the heat generated by internal electronic components when working for a long time. However, these heat dissipation holes also become potential channels for external dust and debris to enter the interior of the shielding device. During the carrying process, dust can easily enter the device through the heat dissipation holes and cover the electronic components, which not only affects the normal heat dissipation of the electronic components, but may also cause serious consequences such as circuit short circuit and component damage, further reducing the reliability and service life of the shielding device.

[0005] Therefore, the present application provides a power electronic shielding device that is resistant to electromagnetic interference to solve the above-mentioned problem. Summary of the invention

[0006] The present application provides an anti-electromagnetic interference power electronic shielding device, which aims to solve the problem that the existing shielding device mentioned in the background technology lacks necessary protective devices on its outer surface, and is easily scratched by external objects during carrying or transportation, resulting in scratches or damage on the outer shell surface, reducing its shielding effect and weakening its protection against electromagnetic interference. At the same time, during the carrying process, dust can easily enter the inside of the device through the heat dissipation holes and cover the electronic components, which not only affects the normal heat dissipation of the electronic components, but also may cause serious consequences such as circuit short circuit and component damage, further reducing the reliability and service life of the shielding device.

[0007] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an anti-electromagnetic interference power electronic shielding device, comprising a shielding device body, an antenna arranged at the upper end of the shielding device body, and a heat dissipation hole opened on one side of the shielding device body;

[0008] In order to prevent the shielding device body from being scratched during the process of being carried: a protective structure is provided on the shielding device body to protect the shielding device body during the process of being carried, the protective structure includes a base fixedly provided at the lower end of the shielding device body, a guard plate engaged on both sides of the shielding device body and hinged to the base, and a locking member provided at one end of the guard plate away from the base, wherein the opposite ends of the two guard plates are in contact with each other. The base and the two guard plates are combined into a protective shell for storing the shielding device body. The protective shell can prevent the shielding device body from contacting the outside during the process of being carried, thereby preventing the shielding device body from being scratched. At the same time, the protective shell can also prevent external dust from entering the inside of the shielding device body and covering the electronic components inside the shielding device body during the process of being carried, thereby reducing the shielding effect.

[0009] Preferably, a U-shaped groove for engaging with the outside of the shielding device body is provided at the bottom of the side of the shielding plate close to the shielding device body. The design of the U-shaped groove makes the connection between the shielding plate and the shielding device body more convenient.

[0010] Preferably, in order to facilitate the disassembly and storage of the antenna in the U-shaped groove: the guard plate is fixedly connected with a plurality of sets of U-shaped holders for storing and fixing the antenna in the U-shaped groove. Through the design of the U-shaped holder, the antenna can be easily disassembled and stored in the U-shaped groove, making the entire device more compact and light when carried. The U-shaped holder provides a stable storage space for the antenna, effectively preventing the antenna from being damaged or lost during transportation.

[0011] Preferably, in order to ensure the stability of the connection when the movable ends of the two guard plates are engaged with the shielding device body: the locking member includes an L-shaped card plate fixedly connected to one of the guard plates, and the other guard plate is provided with a card slot for the L-shaped card plate to be engaged. The matching design of the L-shaped card plate and the card slot enables the two guard plates to form a tight locking structure when closed, effectively preventing the guard plates from being accidentally opened, and enhancing the stability of the entire device.

[0012] Preferably, in order to improve the shielding effect of the shielding device body and increase the grounding area of ​​the shielding device body: the base and the guard plate are both stainless steel plates. The stainless steel plate has good electrical conductivity and can effectively absorb and dissipate energy in the electromagnetic field, thereby improving the shielding effect of the shielding device body. The flat contact surface design of the base enables the shielding device body to form good electrical contact with the ground or other conductive objects, thereby increasing the grounding area and further improving the electromagnetic shielding effect.

[0013] Preferably, in order to facilitate the release of the locking of the two guard plates by the locking member, the movable ends of the two guard plates can automatically unfold around the hinged end: the upper end of the base is symmetrically provided with an unfolding structure for automatically unfolding the two guard plates, and the unfolding structure includes a hinge rod symmetrically hinged on the base, a sliding sleeve hinged on the end of the hinge rod away from the base, a guide rod slidably inserted on the sliding sleeve and fixedly connected to the inner wall of the U-shaped groove, and a spring sleeved on the guide rod corresponding to the end of the sliding sleeve away from the base. Through the unfolding structure, when the locking of the two guard plates by the locking member is released, the two guard plates can automatically unfold around the hinged end to form a stable inverted T-shaped support seat. The design of the inverted T-shaped support seat makes the shielding device body more stable when placed and not easy to tip over or slide. The unfolded guard plate increases the contact area with the ground, thereby improving the grounding effect of the shielding device body and further enhancing the shielding performance of the shielding device.

[0014] Preferably, a support plate is symmetrically fixedly connected to the upper end of the base, and a hinge seat hinged to the two hinged rods is fixedly connected to the upper end of the support plate. The design of the support plate and the hinge seat enables the hinge rod to be firmly connected to the base, preventing it from loosening or falling off during use, thereby improving the stability of the entire device.

[0015] Preferably, in order to facilitate the installation of the guide rod: both ends of the guide rod are fixedly connected with a T-shaped seat fixedly connected to the U-shaped groove, and the T-shaped seat is fixedly installed in the U-shaped groove by screws. The design of the T-shaped seat makes it easier to position and align the guide rod during installation, thereby simplifying the installation process and improving work efficiency. Since the contact area between the T-shaped seat and the U-shaped groove is large and fixed installation is achieved by screws, the connection between them is more stable and is not easy to loosen or fall off.

[0016] Through the design of the protective structure, this application effectively avoids damage to the shielding device body caused by external collisions or scratches during carrying, thereby extending the service life of the device. The protective shell can completely cover the shielding device body in the closed state, effectively blocking the intrusion of external dust and debris, and keeping the inside of the device clean. The hinged design of the guard plate and the base makes the opening and closing of the protective structure easy and quick, and the user can easily complete the operation without additional tools.

[0017] The present application uses an unfolding structure to realize that when the locking member releases the locking of the two guard plates, the two guard plates can automatically unfold around the hinged end to form a stable inverted T-shaped support seat. The design of the inverted T-shaped support seat makes the shielding device body more stable when placed and not easy to tip over or slide. The unfolded guard plate increases the contact area with the ground, thereby improving the grounding effect of the shielding device body and further enhancing the shielding performance of the shielding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a power electronic shielding device for resisting electromagnetic interference;

[0019] Figure 2 for Figure 1 A schematic diagram of the structure of the connection between the shielding device body and the protection structure;

[0020] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0021] Figure 4 for Figure 1 Schematic diagram of the structure of the connection between the middle guard plate and the antenna;

[0022] Figure 5 for Figure 1 Schematic diagram of the middle guard plate in the unfolded state;

[0023] Figure 6 for Figure 5 The enlarged structural diagram at B in the middle;

[0024] Figure 7 for Figure 5 Schematic diagram of the enlarged structure at point C in the middle.

[0025] In the figure:

[0026] 1. Shielding device body; 2. Antenna; 3. Heat dissipation hole; 4. Protection structure; 41. Base; 42. Guard plate; 421. U-shaped groove; 422. U-shaped card seat; 43. Locking piece; 431. L-shaped card plate; 432. Card slot; 5. Deployment structure; 51. Articulated rod; 511. Support plate; 512. Articulated seat; 52. Sliding sleeve; 53. Guide rod; 531. T-shaped seat; 54. Spring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] This embodiment provides a power electronic shielding device against electromagnetic interference, such as Figure 1-7 As shown, the shielding device comprises a shielding device body 1, an antenna 2 arranged at the upper end of the shielding device body 1, and a heat dissipation hole 3 opened on one side of the shielding device body 1;

[0029] In order to prevent the shielding device body 1 from being scratched during the carrying process: a protective structure 4 is provided on the shielding device body 1 for protecting the shielding device body 1 during the carrying process, and the protective structure 4 includes a base 41 fixedly provided at the lower end of the shielding device body 1, a guard plate 42 engaged on both sides of the shielding device body 1 and hinged to the base 41, and a locking member 43 provided at one end of the guard plate 42 away from the base 41, wherein the opposite ends of the two guard plates 42 are in conflict with each other. The base 41 and the two guard plates 42 are combined into a protective shell for storing the shielding device body 1. The protective shell can prevent the shielding device body 1 from contacting the outside during the carrying process, and then the shielding device body 1 can be prevented from being scratched. At the same time, the protective shell can also prevent external dust from entering the inside of the shielding device body 1 and covering the electronic components inside the inside during the carrying process, resulting in a phenomenon of reduced shielding effect. During the carrying or transportation process, the user first stores the antenna 2 of the shielding device body 1 inside the protective plate 42, and then closes the two protective plates 42 so that they contact each other and form a closed protective shell. The protective plates 42 are locked by the locking member 43 to ensure the stability of the protective structure 4. After arriving at the destination, the user only needs to unlock the locking member 43 and open the protective plate 42 to easily take out and use the shielding device body 1.

[0030] Specifically, a U-shaped groove 421 for engaging with the outside of the shielding device body 1 is provided at the bottom of the side of the shielding plate 42 close to the shielding device body 1. The design of the U-shaped groove 421 makes the connection between the shielding plate 42 and the shielding device body 1 more convenient.

[0031] Further, in order to facilitate the disassembly and storage of the antenna 2 in the U-shaped groove 421: the guard plate 42 is fixedly connected with multiple groups of U-shaped holders 422 for storing and fixing the antenna 2 in the U-shaped groove 421. Through the design of the U-shaped holder 422, the antenna 2 can be easily disassembled and stored in the U-shaped groove 421, making the entire device more compact and light when carried. The U-shaped holder 422 provides a stable storage space for the antenna 2, effectively preventing the antenna 2 from being damaged or lost during transportation. The user can easily disassemble and store the antenna 2 in the U-shaped groove 421 without additional tools or steps, simplifying the operation process. When the antenna 2 needs to be stored, the user first removes the antenna 2 from the shielding device body 1 according to the device manual or operation guide. Then, the user aligns the disassembled antenna 2 with the U-shaped space of the U-shaped holder 422 and snaps it into it. During the snapping process, the user needs to apply a little force to ensure that the antenna 2 is firmly stuck in the U-shaped holder 422. At this time, the antenna 2 is safely stored in the U-shaped groove 421, forming a whole with the protective plate 42. When the antenna 2 needs to be used, the user only needs to take the antenna 2 out of the U-shaped holder 422 and reinstall it on the shielding device body 1 according to the reverse operation steps.

[0032] Specifically, in order to ensure the stability of the connection when the movable ends of the two guard plates 42 are engaged with the shielding device body 1: the locking member 43 includes an L-shaped card plate 431 fixedly connected to one of the guard plates 42, and a card slot 432 for the L-shaped card plate 431 to be engaged is provided on the other guard plate 42. The matching design of the L-shaped card plate 431 and the card slot 432 enables the two guard plates 42 to form a tight locking structure when closed, effectively preventing the guard plates 42 from being accidentally opened, and enhancing the stability of the entire device. The user can easily complete the closing and locking operations of the guard plates 42 without additional tools or steps, simplifying the operation process. When closing the guard plates 42, the user first rotates the two guard plates 42 along the hinge point to a position parallel to the shielding device body 1, and aligns the vertical part of the L-shaped card plate 431 with the card slot 432 on the other guard plate 42. Then, the user pushes the two guard plates 42 with a little force, so that the vertical part of the L-shaped card plate 431 is smoothly inserted into the card slot 432. At this time, the horizontal part of the L-shaped card plate 431 will be attached to the outer surface of another guard plate 42 to form a stable locking structure. When the guard plate 42 needs to be opened, the user only needs to push the L-shaped card plate 431 out of the card slot 432 with a little force.

[0033] Specifically, in order to improve the shielding effect of the shielding device body 1 and increase the grounding area of ​​the shielding device body 1: the base 41 and the guard plate 42 are both stainless steel plates. The stainless steel plate has good conductivity and can effectively absorb and dissipate energy in the electromagnetic field, thereby improving the shielding effect of the shielding device body 1. The flat contact surface design of the base 41 enables the shielding device body 1 to form a good electrical contact with the ground or other conductive objects, thereby increasing the grounding area and further improving the electromagnetic shielding effect. The surface of the stainless steel plate is smooth and not easily contaminated with dust and dirt, which is convenient for daily cleaning and maintenance.

[0034] Furthermore, in order to facilitate the release of the locking of the two guard plates 42 by the locking member 43, the movable ends of the two guard plates 42 can automatically unfold around the hinged end: the upper end of the base 41 is symmetrically provided with an unfolding structure 5 for automatically unfolding the two guard plates 42, and the unfolding structure 5 includes a hinge rod 51 symmetrically hinged on the base 41, a sliding sleeve 52 hinged on the end of the hinge rod 51 away from the base 41, a guide rod 53 slidably inserted on the sliding sleeve 52 and fixedly connected to the inner wall of the U-shaped groove 421, and a spring 54 sleeved on the guide rod 53 corresponding to the end of the sliding sleeve 52 away from the base 41. Through the unfolding structure 5, when the locking of the two guard plates 42 by the locking member 43 is released, the two guard plates 42 can automatically unfold around the hinged end to form a stable inverted T-shaped support seat. The design of the inverted T-shaped support seat makes the shielding device body 1 more stable when placed and not easy to tip over or slide. The unfolded guard plate 42 increases the contact area with the ground, thereby improving the grounding effect of the shielding device body 1 and further enhancing the shielding performance of the shielding device. The user can easily realize the automatic unfolding and unlocking of the guard plate 42 without additional steps or tools, simplifying the operation process. The automatic unfolding design enables the user to operate the shielding device more conveniently during use, improving the overall user experience. When the guard plate 42 needs to be opened, the user first presses the L-shaped card plate 431 to unlock the two guard plates 42. At this time, the elastic force of the spring 54 begins to play a role, pushing the sliding sleeve 52 to move along the guide rod 53 toward the base 41. As the sliding sleeve 52 moves, the hinge rod 51 begins to rotate around the hinge point with the base 41 and the sliding sleeve 52. This rotation drives the guard plates 42 to automatically unfold around their hinged ends. When the guard plates 42 are unfolded to be in the same plane as the lower end of the base 41, the elastic force of the spring 54 reaches a balanced state, and at this time, the two guard plates 42 and the base 41 together form a stable inverted T-shaped support seat. The user can place the shielding device body 1 on the support base, and use the unfolded protective plate 42 and the base 41 to form a good electrical contact with the ground, thereby improving the grounding effect and shielding performance.

[0035] Specifically, the upper end of the base 41 is symmetrically fixedly connected with a support plate 511, and the upper end of the support plate 511 is fixedly connected with a hinge seat 512 hinged to the two hinge rods 51. The design of the support plate 511 and the hinge seat 512 enables the hinge rod 51 to be firmly connected to the base 41, preventing it from loosening or falling off during use, thereby improving the stability of the entire device. The hinge rod 51 is connected to the base 41 through the hinge seat 512, so that it can rotate around the hinge point within a certain range, thereby realizing the automatic deployment function of the guard plate 42.

[0036] Specifically, in order to facilitate the installation of the guide rod 53: both ends of the guide rod 53 are fixedly connected with a T-shaped seat 531 fixedly connected to the U-shaped groove 421, and the T-shaped seat 531 is fixedly installed in the U-shaped groove 421 by screws. The design of the T-shaped seat 531 enables the guide rod 53 to be more conveniently positioned and aligned during installation, thereby simplifying the installation process and improving work efficiency. Since the contact area between the T-shaped seat 531 and the U-shaped groove 421 is large, and fixed installation is achieved by screws, the connection between them is more stable and is not easy to loosen or fall off. When installing the guide rod 53, first fix the T-shaped seat 531 with both ends of the guide rod 53. Then, embed the T-shaped seat 531 into the U-shaped groove 421 to ensure that the plane part of the T-shaped seat 531 is tightly fitted with the bottom of the U-shaped groove 421. Then, use screws to fix the T-shaped seat 531 in the U-shaped groove 421 to complete the installation of the guide rod 53.

[0037] The above is only a preferred specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes according to the technical solution and concept of the present application within the technical scope disclosed in the present application, which should be covered by the protection scope of the present application.

Claims

1. A power electronic shielding device for resisting electromagnetic interference, comprising a shielding device body (1), an antenna (2) arranged at the upper end of the shielding device body (1), and a heat dissipation hole (3) opened on one side of the shielding device body (1); Features: A protective structure (4) is arranged on the shielding device body (1) for protecting the shielding device body (1) during carrying, the protective structure (4) includes a base (41) fixedly arranged at the lower end of the shielding device body (1), a protective plate (42) engaged on both sides of the shielding device body (1) and hinged to the base (41), and a locking member (43) arranged at one end of the protective plate (42) away from the base (41), wherein opposite ends of the two protective plates (42) are in contact with each other.

2. The power electronic shielding device against electromagnetic interference according to claim 1, characterized in that: A U-shaped groove (421) for engaging with the outside of the shielding device body (1) is provided at the bottom of one side of the shielding plate (42) close to the shielding device body (1).

3. The power electronic shielding device against electromagnetic interference according to claim 2, characterized in that: The guard plate (42) is fixedly connected to a plurality of groups of U-shaped holders (422) for receiving and fixing the antenna (2) in the U-shaped groove (421).

4. The power electronic shielding device against electromagnetic interference according to claim 1, characterized in that: The locking member (43) comprises an L-shaped clamping plate (431) fixedly connected to one of the guard plates (42), and the other guard plate (42) is provided with a clamping groove (432) for clamping the L-shaped clamping plate (431).

5. The power electronic shielding device against electromagnetic interference according to claim 1, characterized in that: The base (41) and the guard plate (42) are both made of stainless steel plates.

6. The power electronic shielding device against electromagnetic interference according to claim 1, characterized in that: An unfolding structure (5) for automatically unfolding the two guard plates (42) is symmetrically arranged at the upper end of the base (41), and the unfolding structure (5) comprises a hinge rod (51) symmetrically hinged on the base (41), a sliding sleeve (52) hinged on the end of the hinge rod (51) away from the base (41), a guide rod (53) slidably inserted on the sliding sleeve (52) and fixedly connected to the inner wall of the U-shaped groove (421), and a spring (54) sleeved on the guide rod (53) corresponding to the end of the sliding sleeve (52) away from the base (41).

7. The power electronic shielding device against electromagnetic interference according to claim 6, characterized in that: The upper end of the base (41) is symmetrically fixedly connected to a support plate (511), and the upper end of the support plate (511) is fixedly connected to a hinge seat (512) hinged to the two hinge rods (51).

8. The power electronic shielding device against electromagnetic interference according to claim 6, characterized in that: Both ends of the guide rod (53) are fixedly connected to a T-shaped seat (531) fixedly connected to the U-shaped groove (421), and the T-shaped seat (531) is fixedly installed in the U-shaped groove (421) by means of screws.

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