CN114093671A

CN114093671A - Capacitor with fusing protection

Info

Publication number: CN114093671A
Application number: CN202111235806.5A
Authority: CN
Inventors: 张淮鑫
Original assignee: Yangzhou Nissei Electric Co ltd
Current assignee: Yangzhou Nissei Electric Co ltd
Priority date: 2021-10-22
Filing date: 2021-10-22
Publication date: 2022-02-25
Anticipated expiration: 2041-10-22
Also published as: CN114093671B

Abstract

The invention discloses a capacitor with fusing protection, which comprises a shell with an opening structure at the top, wherein a lower electrode end plate is fixedly arranged at the bottom end in the shell, an upper electrode end plate is arranged in the shell and positioned above the lower electrode end plate in a sliding manner along the vertical direction, the top of the upper electrode end plate is fixedly connected with an insulating plate, the upper end surface of the insulating plate is connected with two telescopic conductors along the vertical direction, one telescopic conductor penetrates through the insulating plate and then is electrically connected with the upper electrode end plate, and the other telescopic conductor is electrically connected with the lower electrode end plate; the protective device is characterized by further comprising an upper cover which covers the shell, wherein two protective seats are fixedly mounted on the upper end face of the upper cover, and lead-out wires are connected to the tops of the two protective seats. In the capacitor, the upper electrode end plate can move relative to or away from the lower electrode end plate, and the charge storage capacity of the capacitor can be linearly changed by continuously changing the distance between the two electrode end plates, so that the application range of the capacitor can be widened.

Description

Capacitor with fusing protection

Technical Field

The invention relates to the field of electrical equipment, in particular to a capacitor with fusing protection.

Background

Two conductors which are close to each other, with a non-conductive insulating medium in between, constitute a capacitor. When a voltage is applied across the two plates of the capacitor, the capacitor stores charge. Capacitors play an important role in circuits such as tuning, bypassing, coupling, filtering, etc. The in-process that the condenser was used, because other each components and parts of electrical equipment can produce the electric current through the electric current, and the electric current can produce the heat because the loss, when the upper limit temperature that the temperature surpassed the condenser design, the condenser can be burnt out, if can not timely cut off power, then can arouse serious consequence such as short circuit or conflagration, consequently for the power consumption safety, all can establish ties the fuse on the output wire of condenser among the prior art, after the electric current in the circuit surpassed the temperature upper limit value of condenser, the fuse can automatic fusing, cut off the power supply, play the guard action to the circuit.

The capacity of storing charges in the capacitor has a direct relation with the distance between the two electrode plates, but in the prior art, once the capacitor is manufactured, the whole structure of the capacitor is kept fixed, so the distance between the two electrode plates is relatively fixed, which means that the capacity of storing charges in the capacitor is fixed, and a power person calculates the capacity first when designing a circuit, and then selects the capacitor according to needs, so that the use of the capacitor is limited.

Disclosure of Invention

The present invention is directed to a capacitor with fuse protection to solve the above problems.

In order to achieve the purpose, the invention provides the following technical scheme: a capacitor with fusing protection comprises a shell with an opening structure at the top, wherein a lower electrode end plate is fixedly mounted at the bottom end inside the shell, an upper electrode end plate is slidably mounted above the lower electrode end plate inside the shell along the vertical direction, an insulating plate is fixedly connected to the top of the upper electrode end plate, two telescopic conductors are connected to the upper end surface of the insulating plate along the vertical direction, one telescopic conductor penetrates through the insulating plate and then is electrically connected with the upper electrode end plate, and the other telescopic conductor is electrically connected with the lower electrode end plate; the fuse protector is characterized by further comprising an upper cover which is covered on the shell, two protection seats are fixedly mounted on the upper end face of the upper cover, lead-out wires are connected to the tops of the two protection seats, a fuse connected with the lead-out wires in series is mounted inside one of the protection seats, and the tops of the two telescopic conductors penetrate through the upper cover, extend to the inside of the corresponding protection seat and are connected with the lead-out wires.

Preferably, the bottom of the upper cover is integrally connected with an inserting plate, a limiting step matched with the inserting plate is formed at the top of the inner side of the shell, and the upper cover is detachably and hermetically inserted at the top of the shell.

Preferably, the both sides of upper cover are connected with the vaulting pole along vertical direction is downwards, and the bottom of vaulting pole is connected with spacing throw-out collar, and spacing throw-out collar slidingtype cup joints in the outside of shell, equal elastic connection has the stopper with spacing throw-out collar matched with on preceding terminal surface and the rear end face of shell.

Preferably, a guide rod is fixed inside the housing at the upper end of the lower electrode end plate along the vertical direction, the guide rod extends upwards to sequentially penetrate through holes formed in the upper electrode end plate and the insulating plate, and the insulating plate and the upper electrode end plate are both connected with the guide rod in a sliding manner.

Preferably, the guide rod is an insulating threaded rod, the through hole penetrating through the insulating plate and the upper electrode terminal plate is rotatably connected with a rotator, and the insulating threaded rod is in threaded connection with the rotator.

Preferably, the rotator includes the screwed pipe, and the screwed pipe rotates to cup joint on the perforating hole that insulating board and last electrode terminal plate were seted up, and the top and the bottom of screwed pipe all are formed with the arch, and the arch that is located the top is used for backstop insulating board, and the arch of bottom is used for the backstop to go up the electrode terminal plate, and the top of insulating threaded rod extends to in the screwed pipe and threaded connection with it.

Preferably, the two sides of the circumferential surface of the protrusion positioned at the top of the threaded pipe are symmetrically connected with connecting rods, and the tail ends of the connecting rods are fixedly connected with a deflector rod along the horizontal direction.

Preferably, the fuse chooses for use closed filler-free fuse, and the inner chamber of protection seat is cylindricly, and the fuse-element of fuse is detachable installs inside the protection seat.

Preferably, capacitance scale lines are marked on two side walls in the shell.

Compared with the prior art, the invention provides a capacitor with fusing protection, which has the following beneficial effects:

(1) in the capacitor, the upper electrode end plate can move relative to the lower electrode end plate or move back and forth, so that the distance between the two electrode end plates is changed, and the charge storage capacity of the capacitor can be linearly changed by continuously changing the distance between the two electrode end plates, so that the application range of the capacitor can be enlarged, and the mass production of capacitors of different types can be reduced.

(2) The upper cover in this application adopts to dismantle the grafting mode with the shell and is connected, and the both sides of upper cover are connected with spacing throw-out collar through the vaulting pole, and spacing throw-out collar then slidingtype cup joints in the outside of shell, and when the sealed lid of upper cover was on the shell, spacing throw-out collar was blocked by the stopper, can prevent that the upper cover mistake from touching and being opened, when the upper cover was opened to needs, press the stopper, upwards promote spacing throw-out collar can, make things convenient for personnel to apply the effort to the upper cover.

(3) Link to each other through insulating threaded rod between two electrode end plates to the upper electrode end plate cooperatees with insulating threaded rod, and personnel directly can drive the upper electrode end plate to slide along insulating threaded rod to the rotor, adopt threaded connection to connect the more stable position with the upper electrode end plate for sliding friction to fix, and simultaneously, the upper electrode end plate removes along vertical direction all the time under the limiting displacement along the threaded rod, can not take place the slope, consequently just can not change the relative cross section change between two electrode end plates.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention without limiting the invention in which:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the present invention in an open state of the upper cover;

FIG. 3 is a schematic view of the assembly of the upper electrode end plate, the limit push ring and the upper cover;

FIG. 4 is a schematic sectional view of the housing of FIG. 1;

FIG. 5 is a schematic view of the assembly of the rotor and the insulator plate;

fig. 6 is a schematic view showing the structure of the rotating body according to the present invention.

In the figure: 1. a housing; 2. an upper cover; 3. a stay bar; 4. a limiting push ring; 5. a limiting block; 6. a protective seat; 7. a fuse; 8. leading out a lead; 9. an insulating plate; 10. a rotating body; 101. a threaded pipe; 102. a protrusion; 11. an upper electrode end plate; 12. a deflector rod; 13. a limiting step; 14. a lower electrode end plate; 15. an insulated threaded rod; 16. inserting plates; 17. a connecting rod; 18. a through hole; 19. a telescopic conductor.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the embodiments of the present invention.

As shown in fig. 1-6, the embodiment discloses a capacitor with fuse protection, which includes a case 1 with an open top, a lower electrode terminal plate 14 is fixedly installed at the bottom end inside the case 1, an upper electrode terminal plate 11 is installed inside the case 1 above the lower electrode terminal plate 14 in a sliding manner along a vertical direction, an insulating plate 9 is fixedly connected to the top of the upper electrode terminal plate 11, two telescopic conductors 19 are connected to the upper end surface of the insulating plate 9 along the vertical direction, one of the telescopic conductors 19 penetrates through the insulating plate 9 and then is electrically connected to the upper electrode terminal plate 11, and the other telescopic conductor 19 is electrically connected to the lower electrode terminal plate 14; still establish upper cover 2 on shell 1 including covering, the up end fixed mounting of upper cover 2 has two protection seats 6, the top of two protection seats 6 all is connected with draws forth wire 8, and the internally mounted of one of them protection seat 6 has fuse 7 with drawing forth wire 8 series connection, fuse 7 chooses for use closed no filler fuse, the inner chamber of protection seat 6 is cylindricly, the fuse-element of fuse 7 is detachable installs inside protection seat 6, after fuse 7 melts, completion change that can be quick. The top of two flexible conductors 19 all passes through upper cover 2 and extends to inside corresponding protection seat 6 and is connected with leading-out wire 8, the condenser in this application, upper electrode terminal plate 11 can carry out relative or back-to-back movement for lower electrode terminal plate 14, and then changes the distance between two electrode terminal plates, because other parameters (the voltage of applying between two electrode terminal plates, the cross-sectional area of two motor terminal plates etc.) of condenser can not change, consequently the capacity size that the condenser stores electric charge only is relevant with the distance between two electrode terminal plates, through the distance between two electrode terminal plates of continuous change, can linear change the electric charge storage capacity of condenser, thereby can promote the application scope of condenser.

Because when adjusting the distance between two electrode end plates, need operate upper electrode end plate 11, consequently peg graft in shell 1 top with detachable sealed of upper cover 2 in this application, the bottom integrated into one piece of upper cover 2 is connected with picture peg 16, and the top of shell 1 inboard is formed with the spacing step 13 with picture peg 16 looks adaptation, and upper cover 2 and shell 1 adopt above-mentioned structure can keep relative leakproofness between them.

Further, because the cross section of upper cover 2 is the same with shell 1, consequently when the sealed lid of upper cover 2 is on shell 1, it is inconvenient that personnel open upper cover 2, consequently be connected with vaulting pole 3 in this application along vertical direction downwards in the both sides of upper cover 2, the bottom of vaulting pole 3 is connected with spacing throw-out collar 4, the outside in shell 1 is cup jointed to spacing throw-out collar 4 slidingtype, equal elastic connection has stopper 5 with spacing throw-out collar 4 matched with on the preceding terminal surface of shell 1 and the rear end face, when the sealed lid of upper cover 2 is on shell 1, spacing throw-out collar 4 is blocked by stopper 5, prevent that upper cover 2 mistake from touching and being opened, when the upper cover 2 is opened to needs, press stopper 5, upwards promote spacing throw-out collar 4 can, make things convenient for personnel to apply the effort to upper cover 2.

In order to enable the upper electrode terminal plate 11 to be capable of keeping a horizontal state (without changing the relative cross sections of the two electrode terminal plates) when and after moving, a guide rod is fixed at the upper end of the lower electrode terminal plate 14 in the shell 1 along the vertical direction, the guide rod extends upwards to sequentially penetrate through holes 18 formed in the upper electrode terminal plate 11 and the insulating plate 9, the insulating plate 9 and the upper electrode terminal plate 11 are both connected with the guide rod in a sliding manner, and the upper electrode terminal plate 11 always moves along the vertical direction under the limiting action of the guide rod without inclining.

As a preferred embodiment, the guide rod in this embodiment is an insulating threaded rod 15, a through hole 18 through which the insulating plate 9 and the upper electrode terminal plate 11 pass is rotatably connected to the rotating body 10, the insulating threaded rod 15 is in threaded connection with the rotating body 10, the upper electrode terminal plate 11 and the insulating threaded rod 15 are in threaded connection, which facilitates fine adjustment of the storage capacity of the capacitor by a person, and the threaded connection fixes the upper electrode terminal plate 11 more stably than a sliding friction connection.

Specifically, the rotating body 10 in this embodiment includes a threaded pipe 101, the threaded pipe 101 is rotatably sleeved on the through hole 18 formed in the insulating plate 9 and the upper electrode terminal plate 11, the top and the bottom of the threaded pipe 101 are both formed with protrusions 102, the protrusion 102 located at the top is used for stopping the insulating plate 9, the protrusion 102 located at the bottom is used for stopping the upper electrode terminal plate 11, the top of the insulating threaded rod 15 extends into the threaded pipe 101 and is in threaded connection with the threaded pipe 101, when the threaded pipe 101 and the insulating threaded rod 15 are in threaded connection with each other to slide, the insulating plate 9 and the upper electrode terminal plate 11 can be driven to slide axially along the insulating threaded rod 15 through the two protrusions 102.

Furthermore, two sides of the circumferential surface of the protrusion 102 at the top of the threaded pipe 101 are symmetrically connected with a connecting rod 17, the tail end of the connecting rod 17 is fixedly connected with a shifting lever 12 along the horizontal direction, when the upper electrode end plate 11 needs to be adjusted, a person directly opens the upper cover 2, and the shifting lever 12 is directly shifted clockwise to drive the upper electrode end plate 11 to move. In order to facilitate the direct viewing of the adjusted storage capacity of the capacitor by the personnel, capacitance scale marks are respectively engraved on the two side walls inside the shell 1, and the change relationship between the capacitance scale marks and the upper electrode terminal plate 11 is very easy to obtain because the change of the storage capacity of the capacitor and the change of the distance between the two electrode terminal plates are in a linear relationship.

The invention provides a capacitor with fusing protection, when in specific use, firstly, the storage capacity of the capacitor is determined according to the design of a circuit, then an upper cover 2 is opened to adjust the internal capacity, when the upper cover 2 is opened, a person presses a limit block 5, then a limit push ring 4 is pushed upwards to open the upper cover 2, according to the designed capacity of the circuit, a deflector rod 12 is poked to drive a rotating body 10 to rotate by referring to etched charge capacity scale marks on the inner wall of a shell 1, further an upper electrode end plate 11 is driven to slide along an insulated threaded rod 15, when the upper electrode end plate 11 slides to the corresponding scale marks, the deflector rod 12 stops rotating, the upper electrode end plate 11 stops at the position, then the upper cover 2 is sealed and covered on the shell 1 again, and the capacitor is connected to the circuit and can be normally put into use.

In the description of the present invention, the terms "first", "second", "another", and "yet" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The capacitor with the fusing protection function is characterized by comprising a shell (1) with the top in an open structure, wherein a lower electrode end plate (14) is fixedly installed at the bottom end of the interior of the shell (1), an upper electrode end plate (11) is installed in the shell (1) and is located above the lower electrode end plate (14) in a sliding mode along the vertical direction, an insulating plate (9) is fixedly connected to the top of the upper electrode end plate (11), two telescopic conductors (19) are connected to the upper end face of the insulating plate (9) along the vertical direction, one telescopic conductor (19) penetrates through the insulating plate (9) and then is electrically connected with the upper electrode end plate (11), and the other telescopic conductor (19) is electrically connected with the lower electrode end plate (14); still establish upper cover (2) on shell (1) including covering, the up end fixed mounting of upper cover (2) has two protection seats (6), the top of two protection seats (6) all is connected with and draws wire (8) out, and the internally mounted of one of them protection seat (6) has fuse (7) with drawing wire (8) series connection, the top of two telescopic conductor (19) all passes upper cover (2) back and extends to inside protection seat (6) corresponding and be connected with drawing wire (8).

2. A capacitor with fuse protection as claimed in claim 1, wherein the bottom of the top cover (2) is integrally connected with an insert plate (16), the top of the inner side of the case (1) is formed with a limit step (13) matching with the insert plate (16), and the top cover (2) is detachably and hermetically inserted into the top of the case (1).

3. The capacitor with fusing protection as claimed in claim 2, wherein the two sides of the upper cover (2) are connected with support rods (3) downwards along the vertical direction, the bottom of each support rod (3) is connected with a limit push ring (4), the limit push rings (4) are slidably sleeved outside the casing (1), and the front end face and the rear end face of the casing (1) are elastically connected with limit blocks (5) matched with the limit push rings (4).

4. A capacitor with fuse protection according to claim 2 or 3, characterized in that a guide rod is fixed in the vertical direction inside the case (1) at the upper end of the lower electrode terminal plate (14), the guide rod extends upwards to penetrate through the through holes (18) of the upper electrode terminal plate (11) and the insulating plate (9) in turn, and the insulating plate (9) and the upper electrode terminal plate (11) are connected with the guide rod in a sliding manner.

5. A capacitor with fuse protection as claimed in claim 4, wherein the guide rod is an insulated threaded rod (15), the rotor (10) is rotatably connected to a through hole (18) through which the insulating plate (9) and the upper electrode terminal plate (11) pass, and the insulated threaded rod (15) is threadedly connected to the rotor (10).

6. A capacitor with fuse protection as claimed in claim 5, wherein the rotor (10) comprises a threaded pipe (101), the threaded pipe (101) is rotatably sleeved on the insulating plate (9) and the through hole (18) formed in the upper electrode terminal plate (11), the top and the bottom of the threaded pipe (101) are formed with protrusions (102), the protrusion (102) at the top is used for stopping the insulating plate (9), the protrusion (102) at the bottom is used for stopping the upper electrode terminal plate (11), and the top of the insulating threaded rod (15) extends into the threaded pipe (101) and is in threaded connection with the threaded pipe.

7. A capacitor with fuse protection as claimed in claim 6 wherein the connecting rods (17) are symmetrically connected to both sides of the circumference of the protrusion (102) at the top of the threaded pipe (101), and the end of the connecting rod (17) is fixedly connected with the driving rod (12) along the horizontal direction.

8. A capacitor with fuse protection as claimed in claim 1, wherein the fuse (7) is a closed filler-free fuse, the inner cavity of the protection base (6) is cylindrical, and the fuse element of the fuse (7) is detachably mounted inside the protection base (6).

9. A capacitor with fuse protection according to any of claims 1-3 and 5-7, characterized in that the capacitance scale marks are engraved on both side walls inside the case (1).