Expanded capacitor

Abstract

The utility model discloses an expansion type capacitor comprising a main body, a conductive part and a fixed part, and the conductive part and the fixed part are fixed on two sides of the main body. The main body comprises a capacitor core, an encapsulation part and a shell, and the capacitor core is fixed in the shell through the encapsulation part; the fixing part is provided with a connecting hole, a buckle and a positioning hole matched with the buckle, and the buckle and the positioning hole are distributed at the two ends of the shell; the conductive part comprises a plurality of conductive blocks, the conductive blocks are electrically connected with the two poles of the capacitor core respectively, and the two ends of each conductive block are provided with a first conductive sheet and a second conductive sheet respectively; the first conducting strip extends to the outer side of the encapsulation part, and the second conducting strip is fixed in the connecting hole. Through the arrangement of the conductive part and the fixing part, the capacitor core can be rapidly and stably connected with the capacitor core of another capacitor through the conductive block, and the expansion convenience of the capacitor is improved. By arranging the main bodies and the fixing parts, the multiple main bodies can be inserted into the positioning holes through the buckles to be stably connected, and the structural stability of the extended capacitor is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to capacitor technical field especially, it is an extension capacitor. BACKGROUND

[0002] The film capacitor is the electrode with metal foil, its and polyethylene, polypropylene, polystyrene or polycarbonate plastic film, from two ends overlap, winding into the structure of the cylindrical capacitor. In practical application, the film capacitor needs to meet the demand of different capacity. At present, it is generally to utilize the stack of multiple capacitor units to expand, thereby forming the capacitor of high capacity. However, the existing stack capacitor includes multiple capacitor units and lead frame, wherein each capacitor unit includes anode part, cathode part and insulation part, the insulation part makes the anode part and the cathode part electrically insulated from each other, and the multiple capacitors are connected by the lead frame to constitute a large-capacity film capacitor. Therefore, the large-capacity capacitor of the prior art needs external connecting components such as lead frame, and there is an external structure between each capacitor unit, which leads to a complex capacitor structure and is not conducive to integrated installation. SUMMARY

[0003] To solve the above problems, the utility model provides an extension capacitor, multiple capacitors are flexibly connected through the conductive part and the fixing part, and the expansion convenience and combination stability of the capacitor are improved.

[0004] The utility model solves the technical scheme that the problem thereof adopts:

[0005] An extension capacitor, comprising: a main body, a conductive part and a fixing part, the conductive part and the fixing part are fixed on both sides of the main body, the main body comprises a capacitor core, a potting part and a shell, the capacitor core is fixed in the shell through the potting part, the fixing part is provided with a connecting hole, a buckle and a positioning hole matched with the buckle, the buckle and the positioning hole are distributed at both ends of the shell, the conductive part comprises a plurality of conductive blocks, the conductive blocks are electrically connected with both poles of the capacitor core respectively, both ends of the conductive block are provided with a first conductive sheet and a second conductive sheet respectively, the first conductive sheet extends to the outside of the potting part, and the second conductive sheet is fixed in the connecting hole.

[0006] The above-mentioned extension capacitor has at least the following beneficial effects: by setting the conductive part and the fixing part, the capacitor core can be quickly and stably connected with the capacitor core of another capacitor through the conductive block, and the expansion convenience of the capacitor is improved; by setting the main body and the fixing part, multiple main bodies can be stably connected by inserting the buckle into the positioning hole, the situation that the capacitor is loose during use is avoided, and the structural stability of the extension capacitor is improved.

[0007] Further, one side of the shell is provided with an opening, and the other side of the shell is provided with a connecting table matched with the opening. By arranging the opening and the connecting table, the adjacent expansion capacitor can be inserted into the opening through the connecting table, so that the buckle can be quickly and accurately inserted into the positioning hole, and the assembly convenience of the expansion capacitor is improved.

[0008] Further, the positioning holes are uniformly distributed at the upper and lower ends of the opening, and the buckles are uniformly distributed at the upper and lower ends of the connecting table. This structure ensures that the connecting table can be stably fixed in the opening by inserting the buckle into the positioning hole, avoids the expansion capacitor from being loose or poorly connected, and ensures the working stability of the expansion capacitor.

[0009] Further, the height of the buckle gradually decreases in the direction away from the pouring part. This structure ensures that the buckle can be accurately and quickly inserted into the positioning hole, and avoids the connection of the expansion capacitors from being out of position.

[0010] Further, the connecting hole is also provided with a guide strip matched with the second conductive sheet. By arranging the guide strip, the first conductive sheet can be stably clamped between the second conductive sheet and the guide strip, the capacitors of different expansion capacitors can be stably electrically connected through the conductive block, the poor contact between the expansion capacitors is avoided, and the working stability of the expansion capacitor is ensured.

[0011] Further, the height of the guide strip gradually decreases in the direction away from the pouring part. This structure ensures that the first conductive sheet can be accurately and quickly clamped between the second conductive sheet and the guide strip, avoids the displacement of the first conductive sheet and the second conductive sheet, and improves the expansion convenience of the expansion capacitor.

[0012] Further, the connecting piece is arranged between the conductive block and the first conductive sheet and the second conductive sheet. By arranging the connecting piece, the first conductive sheet and the second conductive sheet can be flexibly and stably connected with the capacitor, so as to adapt to different sizes of the shell and improve the compatibility of the expansion capacitor.

[0013] Further, the plane where the first conductive sheet is located is perpendicular to the plane where the connecting piece is located; and the plane where the second conductive sheet is located is perpendicular to the plane where the connecting piece is located. This structure ensures that the first conductive sheet and the second conductive sheet can extend outward at an angle parallel to the shell, and ensures the connection stability between the adjacent expansion capacitors.

[0014] Further, the length of the first conductive sheet is greater than the length of the second conductive sheet. This structure ensures that the second conductive sheet can be fixed in the connecting hole, and at the same time, the first conductive sheet can be inserted between the second conductive sheet and the guide strip, avoids the deformation of the second conductive sheet and the first conductive sheet during plugging, and improves the service life of the expansion capacitor.

[0015] Further, the first conductive sheet, the second conductive sheet and the connecting sheet are integrally formed from a copper bar. The copper bar is an indispensable conductive material for power distribution installation wires, and the first conductive sheet, the second conductive sheet and the connecting sheet are integrally formed from the copper bar to ensure the conductivity of the conductive part and reduce the production cost of the expansion capacitor.

[0016] The expansion capacitor has the advantages that: the capacitor core can be quickly and stably connected with the capacitor core of another capacitor through the conductive block, the expansion convenience of the capacitor is improved, the main body and the fixing part are arranged, the plurality of main bodies can be stably connected by being buckled into the positioning holes, the situation that the capacitor is loosened during use is avoided, and the structural stability of the expansion capacitor is improved, the opening and the connecting table are arranged, the adjacent expansion capacitors can be inserted into the opening through the connecting table, the buckle is quickly and accurately inserted into the positioning hole, and the assembly convenience of the expansion capacitor is improved, the guide strip is arranged, the first conductive sheet can be stably clamped between the second conductive sheet and the guide strip, the capacitor cores of different expansion capacitors can be stably electrically connected through the conductive block, the situation that the expansion capacitors are in poor contact is avoided, and the working stability of the expansion capacitor is ensured.

[0017] The additional aspects and advantages of the present application will be given in part in the following description, become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a structural schematic view of an expansion capacitor according to an embodiment of the present application;

[0019] Figure 2 FIG. 2 is an exploded view of the expansion capacitor according to the embodiment of the present application;

[0020] Figure 3 FIG. 3 is a structural schematic view of the expansion capacitor from another angle according to the embodiment of the present application;

[0021] Figure 4 FIG. 4 is an exploded view of the expansion capacitor from another angle according to the embodiment of the present application;

[0022] Figure 5 FIG. 5 is a connection schematic view of the expansion capacitor according to the embodiment of the present application. DETAILED DESCRIPTION

[0023] The embodiments of the present application are described below in detail, and examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary only, and are used only for explaining the present application, and cannot be understood as limiting the present application.

[0024] Referring to Figures 1 to 5 The utility model discloses an extension type capacitor, including: main part 100, conducting part 200 and fixed part 300, conducting part 200 and fixed part 300 are fixed on both sides of main part 100, main part 100 includes capacitor core 110, potting part 120 and shell 130, and capacitor core 110 is fixed in shell 130 through potting part 120, fixed part 300 is equipped with connecting hole 310, buckle 320 and with buckle 320 cooperation's positioning hole 330, and buckle 320 and positioning hole 330 are distributed in both ends of shell 130, conducting part 200 includes a plurality of conducting blocks 210, and conducting block 210 is electrically connected with both poles of capacitor core 110 respectively, and both ends of conducting block 210 are equipped with first conducting sheet 211 and second conducting sheet 212 respectively, first conducting sheet 211 extends to the outside of potting part 120, and second conducting sheet 212 is fixed in connecting hole 310.

[0025] Through setting conducting part 200 and fixed part 300, capacitor core 110 can be connected with the capacitor core 110 of another capacitor quickly and stably through conducting block 210, and the extension convenience of capacitor is improved, through setting main part 100 and fixed part 300, a plurality of main parts 100 can be stably connected by being inserted into positioning hole 330 through buckle 320, avoid the situation that capacitor is loose during use, improve the structural stability of extension type capacitor.

[0026] Another embodiment, one side of shell 130 is equipped with opening 131, and the other side of shell 130 is equipped with connecting table 132 with opening 131 cooperation. Through setting opening 131 and connecting table 132, the adjacent extension type capacitor can be inserted into opening 131 through connecting table 132, so that buckle 320 is quickly and accurately inserted into positioning hole 330, and the assembly convenience of extension type capacitor is improved.

[0027] Another embodiment, positioning hole 330 is evenly distributed in the upper and lower ends of opening 131, and buckle 320 is evenly distributed in the upper and lower ends of connecting table 132. This structure ensures that connecting table 132 can be stably fixed in opening 131 by being inserted into positioning hole 330 through buckle 320, avoids the situation that extension type capacitor is loose and contact is poor, and ensures the working stability of extension type capacitor.

[0028] In another embodiment, the height of the buckle 320 gradually decreases in the direction away from the pouring portion 120. This structure ensures that the buckle 320 can be accurately and quickly inserted into the positioning hole 330, avoiding the situation that the connection between the expansion capacitors is not in place.

[0029] In another embodiment, the connecting hole 310 is also provided with a guide strip 311 matched with the second conductive sheet 212. By arranging the guide strip 311, it is ensured that the first conductive sheet 211 can be stably clamped between the second conductive sheet 212 and the guide strip 311, ensuring that the capacitor core 110 of different expansion capacitors can be stably electrically connected through the conductive block 210, avoiding the situation that the expansion capacitors are not in contact, and ensuring the working stability of the expansion capacitors.

[0030] In another embodiment, the height of the guide strip 311 gradually decreases in the direction away from the pouring portion 120. This structure ensures that the first conductive sheet 211 can be accurately and quickly clamped between the second conductive sheet 212 and the guide strip 311, avoiding the situation that the first conductive sheet 211 and the second conductive sheet 212 are displaced, and improving the expansion convenience of the expansion capacitor.

[0031] In another embodiment, the connecting piece 213 is arranged between the conductive block 210 and the first conductive sheet 211 and the second conductive sheet 212. By arranging the connecting piece 213, it is ensured that the first conductive sheet 211 and the second conductive sheet 212 can be flexibly and stably connected with the capacitor core 110 to adapt to different sizes of the shell 130, and improve the compatibility of the expansion capacitor.

[0032] In another embodiment, the plane where the first conductive sheet 211 is located is perpendicular to the plane where the connecting piece 213 is located; the plane where the second conductive sheet 212 is located is perpendicular to the plane where the connecting piece 213 is located. This structure ensures that the first conductive sheet 211 and the second conductive sheet 212 can extend outward at an angle parallel to the shell 130, ensuring the connection stability between adjacent expansion capacitors.

[0033] In another embodiment, the length of the first conductive sheet 211 is greater than the length of the second conductive sheet 212. This structure ensures that the second conductive sheet 212 can be fixed in the connecting hole 310, and at the same time, the first conductive sheet 211 can be inserted between the second conductive sheet 212 and the guide strip 311, avoiding the deformation of the second conductive sheet 212 and the first conductive sheet 211 during plugging, and improving the service life of the expansion capacitor.

[0034] In another embodiment, the first conductive sheet 211, the second conductive sheet 212 and the connecting sheet 213 are integrally formed by a copper bar. The copper bar is an indispensable conductive material for power distribution installation, and the first conductive sheet 211, the second conductive sheet 212 and the connecting sheet 213 integrally formed by the copper bar ensure the conductive performance of the conductive part 200 and reduce the production cost of the extended capacitor.

[0035] The working principle of the utility model will be further described below.

[0036] In the production process of the extended capacitor in the embodiment, first, according to the specification of the capacitor core 110, a corresponding size of the shell 130 is selected to enable the capacitor core 110 to be stably fixed in the shell 130. One side of the shell 130 is provided with an opening 131, and the other side of the shell 130 is provided with a connecting table 132 matched with the opening 131. The buckles 320 and the positioning holes 330 are distributed at both ends of the shell 130. Then, the conductive block 210 is installed at the upper and lower ends of the capacitor core 110, respectively, so that the middle position of the conductive block 210 is attached to the two poles of the capacitor core 110. The first conductive sheet 211 extends to the outside of the opening 131, and the second conductive sheet 212 is inserted into the connecting hole 310. Finally, the pouring part 120 is formed between the capacitor core 110 and the shell 130 by injection molding, and the conductive hole 121 matched with the second conductive sheet 212 is formed on the pouring part 120 during the injection molding process. In this way, the production of the extended capacitor is completed, the whole process is controllable and efficient, and the production efficiency of the extended capacitor is ensured.

[0037] In the use process of the extended capacitor in the embodiment, a corresponding number of extended capacitors is selected according to the use environment. When the demand for capacitors in the use environment is multiple, only the connecting table 132 of the current extended capacitor needs to be inserted into the opening 131 of another extended capacitor. At this time, the first conductive sheet 211 is inserted into the connecting hole 310 of the front extended capacitor to enable the first conductive sheet 211 to be fixed in the connecting hole 310, i.e., the first conductive sheet 211 is clamped between the second conductive sheet 212 and the guide strip 311, so that the capacitor core 110 can be electrically connected to the capacitor core 110 of the rear extended capacitor through the conductive block 210, the second conductive sheet 212 and the conductive hole 121, thereby conducting the capacitor cores 110 of the two extended capacitors, ensuring that the capacitor cores 110 of different extended capacitors can be stably electrically connected through the conductive block 210, and avoiding poor contact between the extended capacitors. At the same time, the buckles 320 at the upper and lower ends of the connecting table 132 are inserted into the positioning holes 330 at the upper and lower ends of the opening 131 to enable the two shells 130 to be stably and accurately combined, thereby avoiding the extended capacitor from being loose during use. At this time, the extended capacitor is in the state as shown in FIG. 6. Figure 5In the shown assembled state, since the buckles 320 are inserted into the positioning holes 330 and the first conductive sheets 211 are clamped between the second conductive sheets 212 and the guide strips 311, the plurality of capacitors are flexibly connected through the conductive parts 200 and the fixing parts 300, and the expansion convenience and combination stability of the capacitors are improved.

[0038] As can be seen from the above description, the expansion capacitor of the utility model is connected with another capacitor through the conductive block 210 and the capacitor core 110 quickly and stably, and the expansion convenience of the capacitor is improved; the plurality of main bodies 100 can be stably connected by inserting the buckles 320 into the positioning holes 330, the situation of loosening of the capacitor in the use process is avoided, and the structural stability of the expansion capacitor is improved; the adjacent expansion capacitors can be inserted into the openings 131 through the connecting tables 132, the buckles 320 are quickly and accurately inserted into the positioning holes 330, and the assembly convenience of the expansion capacitor is improved; the first conductive sheets 211 are stably clamped between the second conductive sheets 212 and the guide strips 311, the capacitor cores 110 of different expansion capacitors are stably electrically connected through the conductive block 210, the situation of poor contact between the expansion capacitors is avoided, and the working stability of the expansion capacitor is ensured.

[0039] The utility model is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the utility model.

Claims

1. An extended capacitor, characterized by, The utility model relates to a capacitor, including: Main body, conductive part and fixed part, the conductive part and the fixed part are fixed in both sides of main body, the main body includes capacitor core, filling part and shell, the capacitor core is fixed in the shell through the filling part, the fixed part is equipped with connecting hole, buckle and the positioning hole that cooperates with buckle, the buckle and the positioning hole distribute in both ends of shell, the conductive part includes a plurality of conductive block, the conductive block respectively with both poles of capacitor core electricity is connected, both ends of the conductive block are equipped with first conductive sheet and second conductive sheet respectively, the first conductive sheet extends to the outside of filling part, and the second conductive sheet is fixed in the connecting hole.

2. An extended capacitor according to claim 1, wherein One side of the shell is provided with an opening, and the other side of the shell is provided with a connecting table matched with the opening.

3. An extended capacitor according to claim 2, wherein The positioning holes are uniformly distributed on the upper and lower ends of the opening, and the buckles are uniformly distributed on the upper and lower ends of the connecting table.

4. An extended capacitor according to claim 3, wherein The height of the buckle gradually decreases in the direction away from the filling part.

5. An extended capacitor as claimed in claim 1, wherein, The connecting hole is also provided with a guide strip matched with the second conductive sheet.

6. An extended capacitor according to claim 5, wherein The height of the guide strip gradually decreases in the direction away from the filling part.

7. An extended capacitor as defined in claim 1, wherein The conductive block is provided with a connecting piece between the first conductive sheet and the second conductive sheet.

8. An extended capacitor according to claim 7, wherein The plane of the first conductive sheet is perpendicular to the plane of the connecting piece; the plane of the second conductive sheet is perpendicular to the plane of the connecting piece.

9. An extended capacitor according to claim 8, wherein The length of the first conductive sheet is greater than the length of the second conductive sheet.

10. An extended capacitor according to claim 7, wherein The first conductive sheet, the second conductive sheet and the connecting piece are made of copper bar integrated molding.

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