Multi-core sub-capacitor capable of realizing equal output voltage

Abstract

A multi-core sub-capacitor with equal output voltage includes a plurality of multi-core sub-capacitor groups, a current collecting device, a switching assembly, a plurality of electrode terminals, and a housing. Each of the multi-core sub-capacitor groups includes a plurality of capacitors arranged in multiple rows and columns in series with each other in a current direction, and the number of capacitors in each of the multi-core sub-capacitor groups is equal. The current collecting device includes a current leading assembly for leading the current generated by the capacitors and a current collecting assembly for collecting the current of the current leading assembly. The switching assembly includes a plurality of switching members arranged at intervals. The current generated by the capacitors is finally shunted to the corresponding electrode terminals through the current leading assembly, the current collecting assembly, and the switching members, thereby ensuring that the current flowing through each of the electrode terminals is equal.

Description

Technical Field

[0001] This invention belongs to the field of capacitor manufacturing technology, and in particular to a multi-core capacitor that can achieve equal output voltage. Background Technology

[0002] Two conductors placed close together, with a non-conductive insulating medium sandwiched in between, constitute a capacitor. With the rapid development of electronic information technology and the increasingly fast pace of digital electronic product upgrades, the production and sales of consumer electronics, primarily flat-screen TVs, laptops, and digital cameras, have continued to grow, thus driving the growth of the capacitor industry.

[0003] In the prior art, electrode terminals are evenly distributed on the housing and copper busbars are vertically connected to the electrode terminals, thereby ensuring that the current passing through each electrode terminal is evenly distributed. For example, in the invention patent with publication number CN203121035B, the electrode terminals are vertically inserted and evenly distributed on the motor assembly.

[0004] However, in actual production, due to certain practical needs, the electrode terminals are not evenly distributed on the outer casing; that is, multiple electrode terminals are distributed on the same side of the casing. In this case, if a traditional vertical connection structure is used, the current flowing through the electrode terminals will be unevenly distributed, with excessive current flowing through some electrode terminals, resulting in excessive heat generation at those electrode terminals and ultimately damaging them. Summary of the Invention

[0005] In view of this, the present invention provides a multi-core capacitor that can achieve equal output voltage to solve the above problems.

[0006] A multi-core capacitor capable of achieving equal output voltage includes a housing, multiple sets of multi-core capacitors housed within the housing, a busbar connected to each set of multi-core capacitors, a converter connected to the busbar, and multiple electrode terminals unevenly distributed on the housing and connected to the converter. The number of multi-core capacitor sets is equal to the number of electrode terminals. Each multi-core capacitor set comprises multiple capacitors connected in series in multiple rows and columns according to the current direction, with each multi-core capacitor set containing an equal number of capacitors to ensure equal current flow from each multi-core capacitor set. The busbar includes a current-guiding component connected to the capacitors for guiding the current generated by the capacitors, and a busbar assembly connected to the current-guiding component for summing the current guided by the current-guiding component. The busbar assembly includes multiple spaced-apart main busbars. The converter includes multiple converters connected to the main busbars, the converters being located between the main busbars and the electrode terminals. The current generated by each of the multi-core capacitor banks flows sequentially through the current-guiding component, the current-combining component, and the adapter, and finally flows into the corresponding electrode terminal.

[0007] Furthermore, the current-draining assembly is attached to both ends of the capacitor to guide the current generated by the capacitor. The current-draining assembly includes a plurality of first current-draining elements connected to the capacitor, a plurality of second current-draining elements connected to the capacitor and disposed opposite to the first current-draining elements, a plurality of third current-draining elements connected to the capacitor and disposed at intervals from the second current-draining elements, and a plurality of fourth current-draining elements connected to the capacitor and disposed at intervals from the third current-draining elements. The number of first current-draining elements, second current-draining elements, and third current-draining elements is equal.

[0008] Furthermore, the first drain element is L-shaped, and each first drain element includes a first drain piece connected to the capacitor and used to guide the current generated by the capacitor, and a first overlap portion located at one end of the first drain piece and connected to the main busbar.

[0009] Furthermore, the bus assembly also includes a plurality of spaced-apart slave bus members, one end of which is connected to the second drain member and the other end of which is connected to the third drain member.

[0010] Furthermore, the second drain element is L-shaped, and each second drain element includes a second drain piece connected to the capacitor and used to guide the current generated by the capacitor, and a second overlap portion located at one end of the second drain piece.

[0011] Furthermore, the third current-draining component is a right-angled groove type, and the third current-draining component includes a third current-draining piece connected to the capacitor and used to guide the current generated by the capacitor, and two third overlapping portions located at both ends of the third current-draining piece.

[0012] Furthermore, the adapter assembly is made of copper.

[0013] Furthermore, the electrode terminals are welded to the housing.

[0014] Furthermore, the housing is made of steel.

[0015] Compared with existing technologies, the multi-core capacitor provided by this utility model, which achieves equal output voltage, ensures that the current flowing out of each multi-core capacitor group is equal by approximately evenly distributing the number of capacitors within each multi-core capacitor group. The current from each correspondingly connected multi-core capacitor group is led out through the first, second, third, and fourth current-guiding components and flows to the correspondingly positioned electrode terminals via the adapter. This ensures that the current flowing through the unevenly distributed electrode terminals is equal, preventing damage to the electrode terminals. Attached Figure Description

[0016] Figure 1 A schematic diagram of the structure of a multi-core capacitor that can achieve equal output voltage, provided by this utility model.

[0017] Figure 2 for Figure 1 A schematic diagram of the internal structure of a multi-core capacitor housing that can achieve equal output voltage.

[0018] Figure 3 for Figure 2 A schematic diagram of the structure of a multi-core capacitor housing that can achieve equal output voltage from another direction. Detailed Implementation

[0019] The specific embodiments of this utility model are described in further detail below. It should be understood that the description of the embodiments of this utility model herein is not intended to limit the scope of protection of this utility model.

[0020] like Figures 1 to 3The diagram shows a structural schematic of a multi-core capacitor capable of achieving equal output voltages according to this invention. The multi-core capacitor capable of achieving equal output voltages includes a housing 10, multiple sets of multi-core capacitor groups 20 housed within the housing 10, a current collector 30 connected to the multi-core capacitor groups 20, a converter assembly 40 connected to the current collector 30, and multiple electrode terminals 50 connected to the converter assembly 40. The multi-core capacitor capable of achieving equal output voltages also includes other functional modules, such as a battery assembly connected to the multi-core capacitor, etc., which are technologies well known to those skilled in the art and will not be described in detail here.

[0021] The housing 10 is used to house the aforementioned functional components. Preferably, the housing 10 is made of a metal material such as steel, thereby providing better stability.

[0022] like Figure 3 As shown, the number of multi-core capacitor groups 20 is equal to the number of electrode terminals 50, and the number of multi-core capacitor groups 20 is determined by the number of electrode terminals 50. In this embodiment, the number of multi-core capacitor groups 20 is three. That is, each multi-core capacitor group 20 includes a first multi-core capacitor group 22, a second capacitor group 23 spaced apart from the first multi-core capacitor group 22, and a third capacitor group 24 spaced apart from the second capacitor group 23.

[0023] Each of the multi-core capacitor banks 20 includes multiple capacitors 21. Capacitors are used for energy storage and are existing technology, so they will not be described in detail here. Each multi-core capacitor bank 20 is formed by connecting multiple capacitors 21 in series in multiple rows and columns according to the current direction.

[0024] The number of capacitors 21 in each group of multi-core capacitor banks 20 is approximately equal. Even if there is a difference, it is only one. However, each multi-core capacitor bank 20 contains dozens of capacitors 21, so a difference of only one will not cause a significant difference in the output current of each multi-core capacitor bank 20. The equal number of capacitors 21 in each multi-core capacitor bank 20 ensures that the current flowing through each multi-core capacitor bank 20 is equal. Each group of multi-core capacitor banks 20 is arranged alternately. A fixing strap can also be wrapped around the outside of each multi-core capacitor bank 20 to fix the capacitors 21 in the multiple multi-core capacitor banks 20.

[0025] The current intensity drawn from the first multi-core capacitor bank 22 includes the current intensity drawn from the capacitor 21 corresponding to a second current drawer 312, a third current drawer 313, and a fourth current drawer 314.

[0026] The current intensity drawn from the second multi-core capacitor bank 23 includes the current intensity drawn from the capacitor 21 connected to the second current drawer 312, the third current drawer 313, and the fourth current drawer 314.

[0027] The current intensity drawn from the third multi-core capacitor bank 24 includes the current intensity drawn from the capacitors 21 corresponding to the two first current-leading members 311 and the fourth current-leading member 314. In this embodiment, the number of rows of capacitors 22 corresponding to the second current-leading member 312 is three, the number of rows of capacitors 22 corresponding to the first current-leading member 311 is five, and the number of rows of capacitors 22 corresponding to the third connecting member 313 is eight. Therefore, the total number of rows of the first multi-core capacitor bank 22 and the second multi-core capacitor bank 23 is equal, only one more row than the number of rows of the third multi-core capacitor bank 24, and the current flowing out of the three is approximately equal. This is only one embodiment of the present invention for the sake of simplicity. The multi-core capacitor bank 20 can also be provided with a fourth multi-core capacitor bank, a fifth multi-core capacitor bank, etc., according to actual needs, and is not specifically limited here.

[0028] like Figure 2 As shown, the busbar 30 is used to guide the current generated across the capacitor 21 to the adapter 40. The busbar 30 includes a current-guiding component 31 connected to the capacitor 21 and a current-combining component 32 connected to the current-guiding component 31. The busbar 30 is made of copper, thus having good conductivity.

[0029] The current-guiding assembly 31 is attached to both ends of the capacitor 21 and is used to guide the current generated by the capacitor 21. The current-guiding assembly 31 includes a plurality of first current-guiding elements 311 connected to the capacitor 21, a plurality of second current-guiding elements 312 connected to the capacitor 21 and corresponding to the first current-guiding elements 311, a plurality of third current-guiding elements 313 connected to the capacitor 21 and spaced apart from the second current-guiding elements 312, and a plurality of fourth current-guiding elements 314 connected to the capacitor 21 and spaced apart from the third current-guiding elements 313.

[0030] like Figure 3As shown, the first drain element 311 is L-shaped. The number of the first drain elements 311 is determined by the number of the electrode terminals 50, and the number of the first drain elements 311 is one less than the number of the electrode terminals 50. In this embodiment, there are two first drain elements 311. Each first drain element 311 includes a first drain piece 3111 connected to the capacitor 21 and used to guide the current generated by the capacitor 21, and a first overlap portion 3112 located at one end of the first drain piece 3111 and connected to the main busbar 321 described below.

[0031] The length of the first guide piece 3111 is determined by the division between the multi-core capacitor groups 20. In this embodiment, the length of the first guide piece 3111 is the length formed by the series connection of the five rows of capacitors 21.

[0032] The first overlapping portion 3112 is used to guide the current guided by the first current guide 3111 to the main busbar 321.

[0033] The second current-draining member 312 is also L-shaped. The second current-draining member 312 and the first current-draining member 311 are located in the same column of the plurality of capacitors 21 and are arranged opposite to each other along the row direction of the plurality of capacitors 21. Each second current-draining member 312 includes a second current-draining piece 3121 connected to the capacitor 21 and used to guide the current generated by the capacitor 21, and a second overlap portion 3122 located at one end of the second current-draining piece 3121 and connected to the current-draining member 322 described below.

[0034] The length of the second lead plate 3121 is determined by the division between the multi-core capacitor groups 20. In this embodiment, each capacitor group 20 is composed of eight rows of capacitors 21. Since the length of the first lead plate 3111 is the length formed by connecting five rows of capacitors 21 in series, the length of the second lead plate 3121 is the length formed by connecting the remaining three rows of capacitors 21 in the same column in series.

[0035] The second overlap portion 3122 is used to guide the current guided by the second drain piece 3121 to the busbar 322.

[0036] The third current-guiding element 313 is a right-angled groove type. The third current-guiding element 313 includes a third current-guiding piece 3131 connected to the capacitor 21 and used to guide the current generated by the capacitor 21, and two third overlapping portions 3132 located at both ends of the third current-guiding piece 3131.

[0037] The length of the third lead plate 3131 is determined by the number of rows of the multi-core capacitor bank 20. In this embodiment, the multi-core capacitor bank 20 has six rows.

[0038] The two third connecting portions 3132 are respectively connected to the main busbar 321 and the secondary busbar 322. The third connecting portions 3132 are used not only to guide the current flowing through the third guide piece 3131 to the main busbar 321, but also to guide the current flowing through the second guide piece 3121 to the main busbar 321 through the secondary busbar 322 and then into the main busbar 321 together with the third guide piece 3131.

[0039] Each of the fourth lead-in pieces 214 is L-shaped. Each of the fourth lead-in pieces includes a fourth lead-in piece 3141 connected to the capacitor 21 and used to guide the current generated by the capacitor 21, and a fourth overlap portion 3142 overlapping the main busbar 321 and used to guide the current generated by the fourth lead-in piece 3141.

[0040] The number of fourth lead-in pieces 214 is determined by the number of columns in the multi-core capacitor bank 20. In this embodiment, the multi-core capacitor bank 20 has seven columns, and the number of the first lead-in pieces 211 and the third lead-in pieces 213 is two each, therefore the number of fourth lead-in pieces 214 is three.

[0041] The bus assembly 32 includes a plurality of main busbars 321 connected to the adapter assembly 40, and a plurality of slave busbars 322 connected to the second drain plate 212 and the third drain plate 213.

[0042] The number of main busbars 321 is determined by the number of electrode terminals 50. In this embodiment, there are three main busbars 321. The main busbars 321 are used to transmit current to the adapter 41 described below. The main busbars 321 are spaced apart from each other.

[0043] The number of slave busbars 322 is determined by the number of electrode terminals 50. The number of slave busbars 322 is one less than the number of electrode terminals 50. In this embodiment, there are two slave busbars 322. The slave busbars 322 are used to transmit the current on the second current guide 312 to the third current guide 313, and finally converge to the corresponding main current guide 321.

[0044] The adapter assembly 40 includes multiple adapters 41. The number of adapters 41 is determined by the number of electrode terminals 50; in this embodiment, there are three adapters 41. One end of each adapter 41 is connected to the main busbar 321, and the other end is connected to the corresponding electrode terminal 50, for transferring the current on the main busbar 321 to the electrode terminal 50. It is conceivable that each adapter 41 also has at least one guide plate connected to the main busbar 321 and used to guide the current on the main busbar 321 to quickly enter the electrode terminal 50.

[0045] The electrode terminal 50 is used to guide current and connect to an external load (not shown), which should be well known to those skilled in the art. In this embodiment, there are three electrode terminals 50. A load refers to a device that converts electrical energy into other forms of energy; it is a general term for all electrical appliances, such as light bulbs, motors, and electric stoves.

[0046] In the invention patent with publication number CN203121035B, the electrode terminals are evenly distributed on the battery assembly, thereby splitting the current flowing through each electrode terminal to ensure that the current flowing through each electrode terminal is equal in magnitude. This protects the electrode terminals and prevents them from overheating due to excessive current in a single terminal, which could damage the electrode terminal. However, in real-world applications, due to practical needs, some of the electrode terminals 50 are not evenly distributed on the housing 10, but rather biased to one side. In this case, if a traditional connection structure is used, the current flowing through each electrode terminal 50 will be unequal, which can easily lead to excessive current flowing through some electrode terminals 50, resulting in excessive heat generation and damage to the electrode terminal 50. Based on this, in this invention, the multi-row, multi-column capacitors 21 are divided and arranged in a segmented manner, dividing the capacitors 21 in the multi-core capacitor group 20 into approximately equal numbers of portions as the number of electrode terminals 50. At this time, the current generated by the capacitor 21 flows through the busbar 30 successively through the corresponding adapter 41, the electrode terminal 50, and the load (not shown), then through the electrode terminal 50 at the other end, the adapter 41, the busbar 30, and finally to the other side of the capacitor 21, thus forming a closed loop. Since the number of capacitors 21 in each multi-core capacitor bank 20 is approximately equal, the current flowing through the multiple electrode terminals 50 is approximately equal, thus ensuring that even when the electrode terminals 50 are unevenly distributed on one side, the current is still evenly distributed, thereby protecting the electrode terminals 50.

[0047] Compared with the prior art, the present invention provides a multi-core capacitor that can achieve equal output voltage by approximately equally distributing the number of capacitors 21 in each multi-core capacitor group 20 to ensure that the current flowing out of each multi-core capacitor group 20 is equal. The current from each correspondingly connected multi-core capacitor group 20 is led out through the first current guide 311, the second current guide 312, the third current guide 313, and the fourth current guide 314 and flows through the adapter 41 to the correspondingly arranged electrode terminals 50. This ensures that the current flowing through each unevenly distributed electrode terminal 50 is equal, preventing damage to the electrode terminals 50.

[0048] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.

Claims

1. A multi-core capacitor capable of achieving equal output voltage, characterized in that: The multi-core capacitor capable of achieving equal output voltage includes a housing, multiple sets of multi-core capacitors housed within the housing, a current collector connected to each set of multi-core capacitors, a converter connected to the current collector, and multiple electrode terminals unevenly distributed on the housing and connected to the converter. The number of multi-core capacitor sets is equal to the number of electrode terminals. Each multi-core capacitor set includes multiple capacitors connected in series in multiple rows and columns according to the current direction. The number of capacitors in each multi-core capacitor set is equal to ensure that the voltage from each multi-core capacitor is equal. The current flowing out of each capacitor bank is equal. The busbar device includes a current-guiding component connected to the capacitor and used to guide the current generated by the capacitor, and a current-collecting component connected to the current-guiding component and used to collect the current guided by the current-guiding component. The current-collecting component includes a plurality of spaced main busbars. The adapter component includes a plurality of adapters connected to the main busbars. The adapters are located between the main busbars and the electrode terminals. The current generated by each multi-core capacitor bank flows sequentially through the current-guiding component, the current-collecting component, and the adapters, and finally flows into the corresponding electrode terminal.

2. The multi-core capacitor capable of achieving equal output voltage as described in claim 1, characterized in that: The current-guiding assembly is attached to both ends of the capacitor and is used to guide the current generated by the capacitor. The current-guiding assembly includes a plurality of first current-guiding elements connected to the capacitor, a plurality of second current-guiding elements connected to the capacitor and disposed opposite to the first current-guiding elements, a plurality of third current-guiding elements connected to the capacitor and disposed at intervals from the second current-guiding elements, and a plurality of fourth current-guiding elements connected to the capacitor and disposed at intervals from the third current-guiding elements. The number of first current-guiding elements, second current-guiding elements and third current-guiding elements is equal.

3. The multi-core capacitor capable of achieving equal output voltage as described in claim 2, characterized in that: The first drain element is L-shaped, and each first drain element includes a first drain piece connected to the capacitor and used to guide the current generated by the capacitor, and a first overlap portion located at one end of the first drain piece and connected to the main busbar.

4. The multi-core capacitor capable of achieving equal output voltage as described in claim 2, characterized in that: The bus assembly also includes a plurality of spaced-apart slave bus members, one end of which is connected to the second drain member and the other end of which is connected to the third drain member.

5. The multi-core capacitor capable of achieving equal output voltage as described in claim 2, characterized in that: The second drain element is L-shaped, and each second drain element includes a second drain piece connected to the capacitor and used to guide the current generated by the capacitor, and a second overlap portion located at one end of the second drain piece.

6. The multi-core capacitor capable of achieving equal output voltage as described in claim 2, characterized in that: The third current-guiding component is a right-angled groove type. The third current-guiding component includes a third current-guiding piece connected to the capacitor and used to guide the current generated by the capacitor, and two third overlapping portions located at both ends of the third current-guiding piece.

7. The multi-core capacitor capable of achieving equal output voltage as described in claim 1, characterized in that: The adapter assembly is made of copper.

8. A multi-core capacitor capable of achieving equal output voltage as described in claim 1, characterized in that: The electrode terminals are welded to the housing.

9. The multi-core capacitor capable of achieving equal output voltage as described in claim 1, characterized in that: The shell is made of steel.

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