Power filter with protective structure

Abstract

The utility model relates to power filter technical field, and disclose a kind of power filter with protection structure, including power filter body and base, the top of base swingly provided with protective housing, the left and right sides of protective housing are all fixedly connected with extension plate, the rear side of protective housing is provided with heat dissipation channel, the left side middle part of protective housing is fixedly connected with heat dissipation fan, power filter body is set in the inside of protective housing, two guide rods reverse rotation, drive two movable collar to slide compression buffer spring on the outer wall of slide bar, and then the vibration of power filter body is played buffering protection effect, under the action of damper, it is favorable to guarantee the stability of power filter body, protective assembly is limited to move in vertical direction to power filter body, buffer pad is played anti-collision effect to the top of power filter body, and the use safety of power filter body is further protected.

Description

Technical Field

[0001] This utility model relates to the field of power filter technology, and more specifically to a power filter with a protective structure. Background Technology

[0002] A power filter is a new type of electronic device used to dynamically suppress harmonics and compensate for reactive power. It can quickly track and compensate for harmonics of different magnitudes and frequencies. It can sample the load current and separate each harmonic and reactive power, control and actively output the magnitude, frequency and phase of the current, and quickly respond to cancel the corresponding current in the load to achieve dynamic tracking compensation.

[0003] Research indicates that power filters, as key devices for suppressing grid harmonics and improving power quality, are widely used in industrial production, power systems, and electronic equipment. Currently, most power filters with basic protection functions adopt a "shell + base" structure. The shell is typically made of metal (such as cold-rolled steel plate) to isolate the internal filter components from external dust and moisture. Some shells have ventilation holes or simple heat dissipation meshes to alleviate the heat dissipation pressure during operation. The base is used to fix the filter body, and some bases have rubber pads on the bottom for anti-slip and slight shock absorption.

[0004] The shortcomings of existing technologies: Existing buffer structures are mostly made of a single flexible material, such as foam or rubber pads, which can only buffer minor external collisions. When encountering larger external impacts or vibrations, such as the bumps during equipment handling or the high-frequency vibrations generated by the operation of workshop machines, they cannot effectively absorb the impact force, which can easily lead to loosening or damage to the internal filter components. Moreover, existing buffer structures are mostly only for the outer shell or base, and do not form all-round protection covering the filter body. For example, when the top or sides of the filter are impacted, there is a lack of effective buffering, resulting in great limitations in protection.

[0005] Therefore, there is a need to provide a power filter with a protective structure to solve the problems mentioned above. Utility Model Content

[0006] In order to overcome the above-mentioned defects of the prior art, the present invention provides a power filter with a protective structure to solve the problems existing in the background art.

[0007] This utility model provides the following technical solution: a power filter with a protective structure, including a power filter body and a base, a protective shell is movably provided at the top of the base, extension plates are fixedly connected to the left and right sides of the protective shell, a heat dissipation groove is provided on the rear side of the protective shell, a heat dissipation fan is fixedly connected to the middle of the left side of the protective shell, the power filter body is disposed inside the protective shell, support feet are fixedly connected to the four corners of the bottom end of the base, and a buffer pad is fixedly connected to the top of the inner wall of the protective shell.

[0008] Power filters with protective structures also include:

[0009] A protective component is disposed between the bottom end of the power filter body and the top center of the base, and is used to buffer and protect the power filter body from impact.

[0010] Two limiting components are respectively disposed between the extension plates on the left and right sides of the protective shell and the two sides of the base, for limiting the protective shell and the base.

[0011] Two disassembly and assembly components are provided. The top of the base is provided with square slots near the left and right sides. The two disassembly and assembly components are respectively arranged between the two square slots and the two extension plates for installing and fixing the protective shell and the base.

[0012] Preferably, the protective component includes:

[0013] Two fixed blocks are provided, with their bottom ends fixedly connected to the top of the base. Slide rods are fixedly connected to the opposite sides of the two fixed blocks. A buffer spring is movably sleeved on the outer wall of the middle part of the slide rod. Spring telescopic rods are fixedly connected to the top of each of the two fixed blocks. Support plates are fixedly connected to the top of the two spring telescopic rods. The top of the support plates is fixedly connected to the bottom of the power filter body.

[0014] A guiding mechanism is provided between the outer wall of the slide rod and the bottom end of the support plate, and is used to guide the vertical movement of the power filter body and the support plate.

[0015] Preferably, the guiding mechanism includes two movable collars, the inner walls of the two movable collars are slidably connected to the outer wall of the slide rod, the two ends of the buffer spring are fixedly connected to the opposite ends of the two movable collars, the top ends of the two movable collars are fixedly connected to a movable seat one, the middle of the two movable seats one are movably sleeved with a guide rod, the top ends of the two guide rods are movably sleeved with a movable seat two, and the top ends of the two movable seats two are fixedly connected to the bottom end of the support plate near the two spring telescopic rods.

[0016] Preferably, the limiting component includes a limiting seat, the bottom end of which is fixedly connected to the top end of the extension plate, an L-shaped limiting block is movably sleeved on the middle outer wall of the limiting seat, a clamping plate is fixedly connected to the outer wall of the base, the middle of the vertical side of the L-shaped limiting block is movably sleeved with the clamping plate, and a limiting rod is movably sleeved near the left side of the clamping plate.

[0017] Preferably, the disassembly and assembly assembly includes a top plate, the top end of which is fixedly connected to the bottom end of the extension plate. A locking post is fixedly connected to the middle of the bottom end of the top plate. A clamping block one is movably disposed on the left side of the outer wall of the locking post, and a clamping block two is movably disposed on the right side of the outer wall of the locking post. The bottom ends of clamping block one and clamping block two are staggered and sleeved. A limiting post is movably sleeved on the bottom ends of clamping block one and clamping block two. A convex groove seat is fixedly connected to both ends of the limiting post. The clamping block one and clamping block two are movably sleeved in the convex groove of the convex groove seat near their bottom ends. The bottom end of the convex groove seat is fixedly connected to the bottom end of the inner wall of the square groove.

[0018] Preferably, pressure plates are fixedly connected to the outer walls of both clamping block one and clamping block two, and strong springs are fixedly connected to the bottom ends of both pressure plates. The bottom ends of both strong springs are fixedly connected to the top of the convex groove seat near both sides.

[0019] The technical effects and advantages of this utility model are as follows:

[0020] 1. This utility model, by comprising a power filter body and a protective assembly, dissipates heat from the power filter body during operation under the action of a cooling fan. When the power filter body is protected, it is fixedly placed inside a protective shell. When the protective shell is subjected to external impact and vibration, the power filter body, supported by two fixed blocks, moves the support plate downwards, compressing two spring telescopic rods. Under the movable support of movable seat one and movable seat two, two guide rods rotate in opposite directions, causing two movable collars to slide and compress the buffer springs on the outer wall of the slide rod, thereby buffering and protecting the power filter body from vibration. The damper also helps ensure the stability of the power filter body. The protective assembly limits the vertical movement of the power filter body, and the buffer pad prevents collisions to the top of the power filter body, further protecting the safety of the power filter body during use.

[0021] 2. This utility model, by providing a limiting component and a disassembly component, allows for the removal of the protective shell from the base during disassembly. Under the movable support of the limiting seat, the limiting rod is pulled out, the L-shaped limiting block is rotated to separate from the clamping plate, and then the protective shell is moved upward, causing the clamping post to move upward. This compresses the clamping blocks one and two within the convex groove of the convex groove seat, causing the outer wall of the limiting post to rotate in opposite directions. This, in turn, causes the two pressure plates to rotate in opposite directions, compressing the powerful spring and causing the clamping post to move out of the inner wall of the clamping blocks one and two. This facilitates the rapid separation of the protective shell from the base, making it easier to remove or repair the power filter body inside the protective shell. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0024] Figure 3 This is an exploded view of the disassembly and assembly components of this utility model.

[0025] Figure 4 This is a schematic diagram of the protective component of this utility model.

[0026] The attached diagram is labeled as follows: 1. Protective shell; 2. Cooling fan; 3. Power filter body; 4. Limiting component; 401. Limiting seat; 402. L-shaped limiting block; 403. Clamping plate; 404. Limiting rod; 5. Base; 6. Support foot; 7. Buffer pad; 8. Protective component; 801. Support plate; 802. Spring telescopic rod; 803. Fixing block; 804. Slide rod; 805. Movable collar; 806. Buffer spring; 807. Movable seat one; 808. Guide rod; 809. Movable seat two; 9. Assembly / disassembly component; 901. Top plate; 902. Clamping block one; 903. Clamping post; 904. Convex groove seat; 905. Limiting post; 906. Clamping block two; 907. Strong spring; 908. Pressure plate. Detailed Implementation

[0027] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figure 1-4 As shown, this utility model has the following two specific embodiments.

[0029] Example 1

[0030] This utility model is a power filter with a protective structure, including a power filter body 3 and a base 5. A protective shell 1 is movably provided on the top of the base 5. Extension plates are fixedly connected to both the left and right sides of the protective shell 1. A heat dissipation groove is opened on the rear side of the protective shell 1. A heat dissipation fan 2 is fixedly connected to the middle of the left side of the protective shell 1. The power filter body 3 is located inside the protective shell 1. Support feet 6 are fixedly connected to the four corners of the bottom of the base 5. A buffer pad 7 is fixedly connected to the top of the inner wall of the protective shell 1.

[0031] Power filters with protective structures also include:

[0032] The protective component 8 is disposed between the bottom end of the power filter body 3 and the top center of the base 5, and is used to buffer and protect the power filter body 3 from impact.

[0033] Two limiting components 4 are respectively disposed between the extension plates on the left and right sides of the protective shell 1 and the two sides of the base 5, and are used to limit the protective shell 1 and the base 5.

[0034] Two disassembly and assembly components 9 are provided. Square slots are provided at the top of the base 5 near the left and right sides. The two disassembly and assembly components 9 are respectively set between the two square slots and the two extension plates for installing and fixing the protective shell 1 and the base 5.

[0035] Protective component 8 includes:

[0036] Two fixing blocks 803 are fixedly connected to the bottom of the base 5. Slide rods 804 are fixedly connected to the opposite sides of the two fixing blocks 803. A buffer spring 806 is movably sleeved on the outer wall of the middle part of the slide rod 804. Spring telescopic rods 802 are fixedly connected to the top of the two fixing blocks 803. Support plates 801 are fixedly connected to the top of the two spring telescopic rods 802. The top of the support plate 801 is fixedly connected to the bottom of the power filter body 3.

[0037] The guide mechanism is located between the outer wall of the slide bar 804 and the bottom end of the support plate 801, and is used to guide the vertical movement of the power filter body 3 and the support plate 801.

[0038] The guiding mechanism includes two movable collars 805. The inner walls of the two movable collars 805 are slidably connected to the outer wall of the slide rod 804. The two ends of the buffer spring 806 are fixedly connected to the opposite ends of the two movable collars 805. The top of each of the two movable collars 805 is fixedly connected to a movable seat 807. The middle of each of the two movable seats 807 is movably sleeved with a guide rod 808. The top of each of the two guide rods 808 is movably sleeved with a movable seat 809. The top of each of the two movable seats 809 is fixedly connected to the bottom of the support plate 801 near the two spring telescopic rods 802.

[0039] In this embodiment, as Figure 1-2 and Figure 4 As shown, when the protective shell 1 is subjected to an external impact and vibrates, the power filter body 3, supported by two fixed blocks 803, moves the support plate 801 downward, compressing the two spring telescopic rods 802. Under the movable support of movable seat one 807 and movable seat two 809, the two guide rods 808 rotate in opposite directions, causing the two movable collars 805 to slide on the outer wall of the slide rod 804 and compress the buffer spring 806, thereby buffering and protecting the vibration of the power filter body 3. Under the action of the damper, the stability of the power filter body 3 is ensured.

[0040] Example 2

[0041] The difference from Embodiment 1 is that this embodiment discloses a limiting component 4 including a limiting seat 401, the bottom end of the limiting seat 401 being fixedly connected to the top end of the extension plate, an L-shaped limiting block 402 being movably sleeved on the outer wall of the middle part of the limiting seat 401, a locking plate 403 being fixedly connected to the outer wall of the base 5, the middle part of the vertical side of the L-shaped limiting block 402 being movably sleeved with the locking plate 403, and a limiting rod 404 being movably sleeved near the left side of the locking plate 403.

[0042] The assembly / disassembly component 9 includes a top plate 901, the top of which is fixedly connected to the bottom of the extension plate. A locking post 903 is fixedly connected to the middle of the bottom of the top plate 901. A clamping block 902 is movably disposed on the left side of the outer wall of the locking post 903, and a clamping block 906 is movably disposed on the right side of the outer wall of the locking post 903. The bottom ends of the clamping block 902 and the clamping block 906 are staggered and sleeved. A limiting post 905 is movably sleeved on the bottom ends of the clamping block 902 and the clamping block 906. A convex groove seat 904 is fixedly connected to both ends of the limiting post 905. The clamping block 902 and the clamping block 906 are movably sleeved in the convex groove of the convex groove seat 904 near their bottom ends. The bottom end of the convex groove seat 904 is fixedly connected to the bottom end of the inner wall of the square groove.

[0043] The outer walls of clamping block 1 902 and clamping block 2 906 are both fixedly connected to pressure plates 908. The bottom ends of the two pressure plates 908 are both fixedly connected to strong springs 907. The bottom ends of the two strong springs 907 are both fixedly connected to the top of the convex groove seat 904 near both sides.

[0044] In this embodiment, as Figure 1-3As shown, under the movable support of the limiting seat 401, the limiting rod 404 is pulled out, the L-shaped limiting block 402 is rotated to separate from the clamping plate 403, and then the protective shell 1 is moved upward, which drives the clamping post 903 to move upward, squeezing the clamping block 1 902 and the clamping block 2 906 in the convex groove of the convex groove seat 904. The outer wall of the limiting post 905 rotates in opposite directions, which in turn drives the two pressure plates 908 to rotate in opposite directions to compress the strong spring 907, so that the clamping post 903 moves out of the inner wall of the clamping block 1 902 and the clamping block 2 906.

[0045] The working principle of this utility model is as follows: The cooling fan 2 dissipates heat from the power filter body 3 during operation. When protecting the power filter body 3, it is fixedly placed inside the protective shell 1. When the protective shell 1 is subjected to external impact and vibration, the power filter body 3, supported by two fixing blocks 803, moves the support plate 801 downwards, compressing the two spring telescopic rods 802. With the movable support of movable seat one 807 and movable seat two 809, the two guide rods 808 rotate in opposite directions, causing the two movable collars 805 to slide and compress the buffer spring 806 on the outer wall of the slide rod 804. This buffers and protects against vibration of the power filter body 3. The damper ensures the stability of the power filter body 3. (Protective components) The 8 pairs of power filter bodies 3 provide vertical movement limits, and the buffer pad 7 provides anti-collision protection for the top of the power filter body 3. When disassembling the protective shell 1 and the base 5, under the movable support of the limiting seat 401, the limiting rod 404 is pulled out, the L-shaped limiting block 402 is rotated to separate from the clamping plate 403, and then the protective shell 1 is moved upward, causing the clamping post 903 to move upward, squeezing the clamping block 1 902 and clamping block 2 906 in the convex groove of the convex groove seat 904. The outer wall of the limiting post 905 rotates in opposite directions, which in turn causes the two pressure plates 908 to rotate in opposite directions to compress the strong spring 907, so that the clamping post 903 moves out of the inner wall of the clamping block 1 902 and clamping block 2 906, quickly separating the protective shell 1 from the base 5, and taking out or repairing the power filter body 3 inside the protective shell 1.

[0046] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0047] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0048] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A power filter with a protective structure, comprising a power filter body (3) and a base (5), characterized in that: The top of the base (5) is movably provided with a protective shell (1). Extension plates are fixedly connected to both the left and right sides of the protective shell (1). A heat dissipation channel is opened on the rear side of the protective shell (1). A heat dissipation fan (2) is fixedly connected to the middle of the left side of the protective shell (1). The power filter body (3) is set inside the protective shell (1). Support feet (6) are fixedly connected to the four corners of the bottom of the base (5). A buffer pad (7) is fixedly connected to the top of the inner wall of the protective shell (1). Power filters with protective structures also include: The protective component (8) is disposed between the bottom end of the power filter body (3) and the top center of the base (5) for buffering and protecting the power filter body (3) from impact. Two limiting components (4) are respectively disposed between the extension plates on the left and right sides of the protective shell (1) and the two sides of the base (5) to limit the protective shell (1) and the base (5); Two disassembly and assembly components (9) are provided. The top of the base (5) is provided with square grooves near the left and right sides. The two disassembly and assembly components (9) are respectively set between the two square grooves and the two extension plates for installing and fixing the protective shell (1) and the base (5).

2. A power filter with a protective structure according to claim 1, characterized in that: The protective component (8) includes: Two fixed blocks (803) are fixedly connected at their bottom ends to the top of the base (5). Slide rods (804) are fixedly connected to the opposite sides of the two fixed blocks (803). A buffer spring (806) is movably sleeved on the outer wall of the middle part of the slide rod (804). Spring telescopic rods (802) are fixedly connected to the top ends of the two fixed blocks (803). A support plate (801) is fixedly connected to the top ends of the two spring telescopic rods (802). The top end of the support plate (801) is fixedly connected to the bottom end of the power filter body (3). A guiding mechanism is provided between the outer wall of the slide bar (804) and the bottom end of the support plate (801) to guide the vertical movement of the power filter body (3) and the support plate (801).

3. A power filter with a protective structure according to claim 2, characterized in that: The guiding mechanism includes two movable collars (805), the inner walls of which are slidably connected to the outer wall of the slide rod (804). The two ends of the buffer spring (806) are fixedly connected to the opposite ends of the two movable collars (805). The top ends of the two movable collars (805) are fixedly connected to movable seat one (807). The middle of the two movable seat one (807) is movably sleeved with guide rod (808). The top ends of the two guide rods (808) are movably sleeved with movable seat two (809). The top ends of the two movable seats two (809) are fixedly connected to the bottom end of the support plate (801) near the two spring telescopic rods (802).

4. A power filter with a protective structure according to claim 1, characterized in that: The limiting component (4) includes a limiting seat (401), the bottom end of which is fixedly connected to the top end of the extension plate. An L-shaped limiting block (402) is movably sleeved on the outer wall of the middle part of the limiting seat (401). A locking plate (403) is fixedly connected to the outer wall of the base (5). The middle part of the vertical side of the L-shaped limiting block (402) is movably sleeved with the locking plate (403). A limiting rod (404) is movably sleeved near the left side of the locking plate (403).

5. A power filter with a protection structure according to claim 1, characterized in that: The disassembly / assembly assembly (9) includes a top plate (901), the top end of which is fixedly connected to the bottom end of the extension plate. A locking post (903) is fixedly connected to the middle of the bottom end of the top plate (901). A clamping block one (902) is movably disposed on the left side of the outer wall of the locking post (903), and a clamping block two (906) is movably disposed on the right side of the outer wall of the locking post (903). The clamping block one (902) and the clamping block two (906) are... The bottom ends of the clamping blocks are staggered and sleeved together. The bottom ends of the clamping blocks 1 (902) and 2 (906) are movably sleeved with limiting posts (905). The two ends of the limiting posts (905) are fixedly connected with convex groove seats (904). The clamping blocks 1 (902) and 2 (906) are movably sleeved in the convex groove of the convex groove seat (904) near the bottom end. The bottom end of the convex groove seat (904) is fixedly connected to the bottom end of the inner wall of the square groove.

6. A power filter with a protection structure according to claim 5, characterized in that: The outer walls of clamping block one (902) and clamping block two (906) are fixedly connected with pressure plates (908), and the bottom ends of the two pressure plates (908) are fixedly connected with strong springs (907). The bottom ends of the two strong springs (907) are fixedly connected to the top of the convex groove seat (904) near both sides.

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