Alternating current capacitor with protection structure

Abstract

The utility model discloses an alternating current capacitor with a protective structure, which relates to the technical field of capacitors and specifically comprises a capacitor body, the protective structure is arranged at the top end of a shell of the capacitor body, a fixing groove is arranged at the top of the capacitor body, and a wiring terminal of the capacitor body is positioned in the middle of an inner cavity of the fixing groove. The outer ring of the top end of the wiring terminal is fixedly connected with a first connecting block, and the top of the first connecting block is connected with a second connecting block through a connecting structure. According to the alternating-current capacitor with the protection structure, through the arrangement of the first connecting block, the second connecting block, the connecting structure, the binding post and the wiring board, the alternating-current capacitor is connected with conductive assemblies such as a cable through the connecting post, the binding post is hidden in the first connecting block, the probability of damage to the binding post is reduced, and through the connecting structure, the protective effect is good. And the connecting block I and the connecting block II can be quickly fixed or separated, so that the connecting column is convenient to replace, and the convenience of the alternating current capacitor in use is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitors, in particular to an AC capacitor with a protection structure. Background Art

[0002] In an electronic circuit, an AC capacitor is used to pass alternating current and block direct current, and is also used to store and release charges to act as a filter to ensure a smooth output of a pulsating signal. Currently, the disclosed AC capacitors generally consist of a housing and an inner core. The inner core is composed of a number of capacitor elements connected in series and parallel. The capacitor elements are made of aluminum foil for the motor and a composite insulating film as the insulating medium; the housing is welded by a sealed steel plate, and an outgoing line insulating bushing, a hanging bracket and a grounding screw are installed on the housing. Since the lead-out part of the AC capacitor is located outside the housing and there is no protection for the lead-out part, during the transportation process of the AC capacitor, the lead-out part is easily damaged due to impacts and other reasons, affecting the safety of the AC capacitor during transportation. Moreover, when the lead-out part is damaged, it cannot be quickly replaced, affecting the use. Based on this, this application proposes an AC capacitor with a protection structure. Summary of the Utility Model

[0003] The utility model provides an AC capacitor with a protection structure, which solves the problems that the lead-out part of the AC capacitor disclosed in the above background art is exposed outside and is easily damaged, and when the lead-out part is damaged, it cannot be quickly replaced.

[0004] The utility model provides the following technical solution: an AC capacitor with a protection structure, including a capacitor body, a protection structure is provided at the top of the housing of the capacitor body, a fixed groove is provided at the top of the capacitor body, the wiring terminal of the capacitor body is located in the middle of the inner cavity of the fixed groove, and an outer ring at the top of the wiring terminal is fixedly connected with a connecting block one. The top of the connecting block one is connected with a connecting block two through a connecting structure. A connecting column is fixedly connected to the middle of the connecting block two. The bottom of the connecting column is in close fit with the top of the wiring terminal. A wiring board is movably sleeved on the outer ring of the connecting column. A compression cap is threadedly connected to the outer ring of the connecting column. The wiring board is located above the compression cap;

[0005] The protection structure includes a protection vertical plate one, a protection vertical plate two, a protection vertical plate three and a protection vertical plate four that are movably connected to the top of the housing of the capacitor body. The top of the protection vertical plate one is movably connected with a top cover, and the top cover is clamped with the protection vertical plate two, the protection vertical plate three and the protection vertical plate four;

[0006] The connection structure includes a clamping block and a limiting block fixedly connected to the top plate of the first connection block. A limiting hole is provided in the middle of the top end of the clamping block, and the limiting block is adapted to the limiting hole. A clamping groove adapted to the clamping block is provided at the bottom of the second connection block. A power groove is provided at the top end of the clamping groove. A pressing rod is movably connected to the middle of the top of the inner cavity of the power groove. A wedge-shaped block is fixedly connected to the bottom of the pressing rod. The wedge-shaped block is connected to the top of the power groove through a first spring. The limiting block is located on the side of the wedge-shaped block close to the clamping groove. The inclined side of the wedge-shaped block contacts the inclined side of the limiting block. The limiting block is connected to the inner cavity of the clamping groove through a second spring.

[0007] Preferably, heat dissipation grooves are provided on the outer side of the protection structure, and suction cups are uniformly and fixedly connected to the inner cavities of the heat dissipation grooves.

[0008] Preferably, a fixing block is fixedly connected to the side of the top cover away from the suction cup. Fixing grooves adapted to the fixing block are provided at the movable ends of the second protection vertical plate, the third protection vertical plate, and the fourth protection vertical plate.

[0009] Preferably, the outer diameter of the top end of the second connection block is larger than the outer diameter of its bottom end. The outer diameter of the bottom end of the second connection block is adapted to the inner diameter of the fixing groove. The distance value between the top of the first connection block and the top of the fixing groove is the same as the height value of the bottom end of the second connection block.

[0010] Preferably, a slot is provided at the top of the first connection block. The bottom end of the connection column is located below the second connection block, and the bottom end of the connection column is inserted into the slot.

[0011] Preferably, the first connection block, the second connection block, and the compression cap are all made of insulating materials, and the connection column and the wiring board are both made of conductive materials.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] 1. For the AC capacitor with a protection structure, through the setting of the protection structure, the protection structure can protect the structures exposed on the top of the AC capacitor, reduce the influence of external forces on the structures exposed on the AC capacitor, facilitate the use of the AC capacitor, and the protection structure is a split structure. Each part of the protection structure can fit with the outer side wall of the capacitor, so that the top of the AC capacitor is exposed, which is convenient for the use of the AC capacitor and reduces the occupied space.

[0014] 2. For the AC capacitor with a protection structure, through the setting of the first connection block, the second connection block, the connection structure, the connection terminal, and the wiring board, the AC capacitor is connected to conductive components such as cables through the connection column. The connection terminal is hidden in the first connection block, reducing the probability of damage to the connection terminal. And through the connection structure, the first connection block and the second connection block can be quickly fixed or separated, facilitating the replacement of the connection column and improving the convenience of using the AC capacitor. Brief Description of the Drawings

[0015] Figure 1 Schematic diagram of the protection structure for protecting the capacitor body;

[0016] Figure 2 Structure of the present utility model Figure 1 Schematic diagram of the back side;

[0017] Figure 3 Schematic diagram of the top of the capacitor body of the structure of the present utility model;

[0018] Figure 4 Structure of the present utility model Figure 3 Schematic diagram of an explosion;

[0019] Figure 5 Schematic diagram of the clamping connection between the first connecting block and the second connecting block of the structure of the present utility model;

[0020] Figure 6 Schematic diagram of the explosion of the second connecting block of the structure of the present utility model.

[0021] In the figure: 1. Capacitor body; 2. First protective vertical plate; 3. Top cover; 4. Suction cup; 5. Fixed block; 6. Second protective vertical plate; 7. Third protective vertical plate; 8. Fourth protective vertical plate; 9. Fixed groove; 10. Compression cap; 11. Second connecting block; 12. First connecting block; 13. Wiring terminal; 14. Clamping block; 15. Wiring board; 16. Connecting column; 17. Extrusion rod; 18. Second spring; 19. Wedge block; 20. Limiting block; 21. Card slot; 22. First spring. Detailed Description of the Preferred Embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] The utility model provides an AC capacitor with a protection structure, which includes a capacitor body 1. The capacitor body 1 is an AC capacitor, and its model can be CJMAS. The working principle of the capacitor body 1 is the prior art and will not be elaborated here. A protection structure is provided at the top of the capacitor body 1. The protection structure includes a first protection vertical plate 2, a second protection vertical plate 6, a third protection vertical plate 7, and a fourth protection vertical plate 8 that are movably connected to the top of the outer shell of the capacitor body 1. Support blocks are respectively fixedly connected to the four side walls of the capacitor body 1. The middle parts of both ends of the support block are movably connected with rotating rods, and the other ends of the rotating rods are fixedly connected to the first protection vertical plate 2, the second protection vertical plate 6, the third protection vertical plate 7, or the fourth protection vertical plate 8. And there is a damping between the rotating rod and the support block. Under the action of an external force, the first protection vertical plate 2, the second protection vertical plate 6, the third protection vertical plate 7, and the fourth protection vertical plate 8 can rotate. When the external force is removed, the positions of the first protection vertical plate 2, the second protection vertical plate 6, the third protection vertical plate 7, and the fourth protection vertical plate 8 can all remain unchanged, which is convenient for the use of the protection structure.

[0024] Another support block is fixedly connected to the end of the first protection vertical plate 2 away from the rotating rod. The middle parts of both ends of the other support block are movably connected with another rotating rod, and the other end of the other rotating rod is fixedly connected to the top cover 3. When the first protection vertical plate 2, the second protection vertical plate 6, the third protection vertical plate 7, and the fourth protection vertical plate 8 are all in the vertical state, the top cover 3 can be used to seal the frame formed by the first protection vertical plate 2, the second protection vertical plate 6, the third protection vertical plate 7, and the fourth protection vertical plate 8. And the top cover 3 and the frame are fixed together by a clamping method. At this time, a fixing block 5 is fixedly connected to the inner side of the top cover 3. Fixing grooves 9 adapted to the fixing block 5 are provided at the movable ends of the second protection vertical plate 6, the third protection vertical plate 7, and the fourth protection vertical plate 8 away from the rotating rod. Through the setting of the fixing block 5 and the fixing grooves 9, the top cover 3 is clamped to the frame, and the top cover 3 and the frame structure form a protection structure. The protection structure can protect components such as the wiring terminals provided at the top of the capacitor body 1, which is convenient for the transfer of the capacitor.

[0025] And heat dissipation grooves are provided on the outer side of the protection structure. Suction cups 4 are evenly fixedly connected to the inner cavity of the heat dissipation grooves. A fixing block 5 is fixedly connected to the side of the top cover 3 away from the suction cups 4. Through the setting of the suction cups 4, the suction cups 4 can be negatively connected to the outer shell of the capacitor body 1, improving the stability when the protection structure is unfolded, which is convenient for the use of the AC capacitor.

[0026] As can be seen from the above description of the protection structure, when the protection structure is in use, the first protection vertical plate 2, the second protection vertical plate 6, the third protection vertical plate 7, the fourth protection vertical plate 8, and the top cover 3 can form a sealed protection structure. When the protection structure is not in use, the first protection vertical plate 2, the second protection vertical plate 6, the third protection vertical plate 7, and the fourth protection vertical plate 8 can fit with the outer shell of the capacitor body 1, reducing the occupied space of the protection structure, which is convenient for the use of the capacitor body 1.

[0027] A fixing groove is provided at the top of the capacitor body 1. The wiring terminal 13 of the capacitor body 1 is located in the middle of the inner cavity of the fixing groove. An outer ring at the top of the wiring terminal 13 is fixedly connected with a first connecting block 12. The top of the first connecting block 12 is connected with a second connecting block 11 through a connecting structure. The connecting structure includes a clamping block 14 and a limiting block 20 fixedly connected to the top plate of the first connecting block 12. A limiting hole is provided in the middle of the top of the clamping block 14. The limiting block 20 is adapted to the limiting hole. A clamping groove 21 adapted to the clamping block 14 is provided at the bottom of the second connecting block 11. A power groove is provided at the top of the clamping groove 21. A pressing rod 17 is movably connected to the middle of the top of the inner cavity of the power groove. The bottom of the pressing rod 17 is fixedly connected with a wedge-shaped block 19. The wedge-shaped block 19 is connected to the top of the power groove through a first spring 22. The limiting block 20 is located on one side of the wedge-shaped block 19 close to the clamping groove 21. The inclined side of the wedge-shaped block 19 contacts the inclined side of the limiting block 20. The limiting block 20 is connected to the inner cavity of the clamping groove 21 through a second spring 18. And when the top of the first connecting block 12 contacts the bottom of the second connecting block 11, the limiting block 20 can be inserted into the limiting hole.

[0028] Through the setting of the connecting structure, when the pressing rod 17 is pressed, the pressing rod 17 can drive the wedge-shaped block 19 fixedly connected thereto to move downward. When the wedge-shaped block 19 moves downward, it can squeeze the limiting block 20, so that the limiting block 20 can move horizontally. The limiting block 20 is inserted into the limiting hole to realize the quick fixation of the first connecting block 12 and the second connecting block 11. When the restriction on the pressing rod 17 is released, under the action of the resilience of the first spring 22, the wedge-shaped block 19 moves in the reverse direction. When the wedge-shaped block 19 moves in the reverse direction, the limiting block 20 separates from the clamping block 14 under the action of the resilience of the second spring 18, and the connection between the first connecting block 12 and the second connecting block 11 is released.

[0029] The outer diameter of the top of the second connecting block 11 is larger than the outer diameter of its bottom end. The outer diameter of the bottom end of the second connecting block 11 is adapted to the inner diameter of the fixing groove. The distance value between the top of the first connecting block 12 and the top of the fixing groove is the same as the height value of the bottom end of the second connecting block 11. Through the setting of the second connecting block 11, the top of the second connecting block 11 can seal the fixing groove.

[0030] A connecting column 16 is fixedly connected to the middle of the second connecting block 11. A slot is provided at the top of the first connecting block 12. The bottom of the connecting column 16 is located below the second connecting block 11. The bottom end of the connecting column 16 is inserted into the slot. When the first connecting block 12 is connected to the second connecting block 11, the bottom of the connecting column 16 is in close contact with the top of the wiring terminal 13, which is convenient for the flow of current.

[0031] A wiring board 15 is movably sleeved on the outer ring of the connecting column 16. Both the wiring board 15 and the connecting column 16 are made of conductive materials, which can be copper. Current can flow between the wiring board 15 and the connecting column 16. A compression cap 10 is threadedly connected to the outer ring of the connecting column 16. The wiring board 15 is located above the compression cap 10. By screwing the compression cap 10, the position of the wiring board 15 can be fixed by using the compression cap 10, so that the wiring board 15 is closely attached to the second connecting block 11, which is convenient for the use of the wiring board 15. And at this time, the extrusion rod 17 can be pressed by using the wiring board 15.

[0032] From the above description of the connection structure, it can be seen that in this application, the connecting column 16 is connected to conductive components such as cables, reducing the probability of damage to the terminal 13. And after the wiring board 15 is fixed, the first connecting block 12 and the second connecting block 11 can be fixedly connected synchronously. After the wiring board 15 is removed, the first connecting block 12 and the second connecting block 11 can be separated synchronously, which is convenient for the replacement of the connecting column 16 and improves the convenience of using this AC capacitor.

[0033] The first connecting block 12, the second connecting block 11 and the compression cap 10 are all made of insulating materials, which can be insulating plastics.

[0034] In summary: When this AC capacitor with a protective structure is in use, the first protective vertical plate 2, the second protective vertical plate 6, the third protective vertical plate 7, the fourth protective vertical plate 8 and the top cover 3 are all in a vertical state, and the suction cup 4 is negatively connected to the outer side wall of the capacitor body 1. The state of the first protective vertical plate 2 is as Figure 3 shown, the wiring board 15 of this AC capacitor is exposed, which is convenient for this AC capacitor to be used in an electronic circuit. And this AC capacitor transmits current through the connecting column 16 and the wiring board 15, reducing the probability of damage to the terminal 13. When the connecting column 16 or the wiring board 15 needs to be replaced, the user screws the compression cap 10 to release the pressing of the extrusion rod 17 by the wiring board 15. The resilience of the first spring 22 drives the wedge-shaped block 19 to move upward, releasing the extrusion of the wedge-shaped block 19 on the limiting block 20. Under the action of the resilience of the second spring 18, the limiting block 20 can move away from the locking block 14 until the limiting block 20 is completely separated from the locking block 14, releasing the fixation between the first connecting block 12 and the second connecting block 11, and the connecting column 16 or the wiring board 15 can be quickly replaced.

[0035] If it is necessary to transport this AC capacitor, the user rotates the first protective vertical plate 2, the second protective vertical plate 6, the third protective vertical plate 7 and the fourth protective vertical plate 8 by 180 degrees. At this time, a frame is formed around the first protective vertical plate 2, the second protective vertical plate 6, the third protective vertical plate 7 and the fourth protective vertical plate 8. The user then rotates the top cover 3 until the top cover 3 is in a horizontal state. At this time, the top cover 3 uses the fixing block and the fixing groove to achieve clamping with the frame, and the top cover 3 and the frame form a protective structure, as Figure 1 and Figure 2As shown, the protective structure can protect the exposed structure at the top of the AC capacitor, facilitating the transportation of the AC capacitor.

[0036] All the standard parts used in the present utility model can be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, welding, etc. that are mature in the prior art. The machinery, parts and equipment all adopt conventional models in the prior art, which will not be elaborated here. The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An AC capacitor with a protection structure, comprising a capacitor body (1), characterized in that: A protective structure is provided at the top of the outer shell of the capacitor body (1). A fixing groove is provided at the top of the capacitor body (1). The wiring terminal (13) of the capacitor body (1) is located in the middle of the inner cavity of the fixing groove. An outer ring at the top of the wiring terminal (13) is fixedly connected with a first connecting block (12). The top of the first connecting block (12) is connected with a second connecting block (11) through a connecting structure. A connecting column (16) is fixedly connected to the middle of the second connecting block (11). The bottom of the connecting column (16) is in close contact with the top of the wiring terminal (13). A wiring board (15) is movably sleeved on the outer ring of the connecting column (16). A compression cap (10) is threadedly connected to the outer ring of the connecting column (16). The wiring board (15) is located above the compression cap (10). The protective structure includes a first protective vertical plate (2), a second protective vertical plate (6), a third protective vertical plate (7), and a fourth protective vertical plate (8) that are movably connected to the top of the outer shell of the capacitor body (1). The top of the first protective vertical plate (2) is movably connected with a top cover (3). The top cover (3) is snap-connected to the second protective vertical plate (6), the third protective vertical plate (7), and the fourth protective vertical plate (8). The connecting structure includes a clamping block (14) and a limiting block (20) fixedly connected to the top plate of the first connecting block (12). A limiting hole is provided in the middle of the top of the clamping block (14). The limiting block (20) is adapted to the limiting hole. A clamping groove (21) adapted to the clamping block (14) is provided at the bottom of the second connecting block (11). A power groove is provided at the top of the clamping groove (21). A middle part of the top of the inner cavity of the power groove is movably connected with a pressing rod (17). The bottom of the pressing rod (17) is fixedly connected with a wedge-shaped block (19). The wedge-shaped block (19) is connected to the top of the power groove through a first spring (22). The limiting block (20) is located on one side of the wedge-shaped block (19) close to the clamping groove (21). The inclined side of the wedge-shaped block (19) is in contact with the inclined side of the limiting block (20). The limiting block (20) is connected to the inner cavity of the clamping groove (21) through a second spring (18).

2. The AC capacitor with a protection structure according to claim 1, characterized in that: Heat dissipation grooves are provided on the outer side of the protective structure. Suction cups (4) are uniformly fixedly connected to the inner cavities of the heat dissipation grooves.

3. The AC capacitor with a protection structure according to claim 2, characterized in that: A fixing block (5) is fixedly connected to one side of the top cover (3) away from the suction cups (4). Fixing grooves (9) adapted to the fixing block (5) are provided at the movable ends of the second protective vertical plate (6), the third protective vertical plate (7), and the fourth protective vertical plate (8).

4. The AC capacitor with a protection structure according to claim 1, wherein: The outer diameter of the top end of the second connecting block (11) is larger than the outer diameter of its bottom end. The outer diameter of the bottom end of the second connecting block (11) is adapted to the inner diameter of the fixing groove. The distance value between the top of the first connecting block (12) and the top of the fixing groove is the same as the height value of the bottom end of the second connecting block (11).

5. An AC capacitor with a protection structure according to claim 1, characterized in that: A slot is provided at the top of the first connecting block (12). The bottom of the connecting column (16) is located below the second connecting block (11). The bottom end of the connecting column (16) is inserted into the slot.

6. The AC capacitor with a protection structure according to claim 1, wherein: The first connecting block (12), the second connecting block (11), and the compression cap (10) are all made of insulating materials. The connecting column (16) and the wiring board (15) are both made of conductive materials.

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