CN2318695Y

CN2318695Y - Resistor

Info

Publication number: CN2318695Y
Application number: CN 97224554
Authority: CN
Inventors: 孙嘉祥
Original assignee: ZHENGTAI ELECTRICAL EQUIPMENT CO Ltd XIANGSHAN
Current assignee: ZHENGTAI ELECTRICAL EQUIPMENT CO Ltd XIANGSHAN
Priority date: 1997-08-18
Filing date: 1997-08-18
Publication date: 1999-05-12
Anticipated expiration: 2007-08-18

Abstract

The utility model relates to a resistor, comprising a support frame, a connecting screw rod, a resistance element, a connector lug, a connecting plate, a sleeve barrel, an insulator, etc. The utility model is characterized in that the resistance element is made of stainless steel plates; four corners of the resistance element is provided with circular holes, and the middle part is provided with a width slot; according to the difference of resistance and let-through current, in the method of punching the slot, the resistance element with a grid shape and with a flow area with different specifications and different size of current is formed. The utility model has the advantages of high mechanical strength, hard damage, long service life, beautiful appearance, legerity, high temperature resistance, no oxidation, high power-frequency withstand voltage, little resistance error, stable performance, etc.; the utility model is an ideal resistor matched with the starting, the speed regulation and the braking of an electrical machine.

Description

A kind of resistor

The utility model relates to a kind of resistor, and particularly a kind of resistive element is the resistor that corrosion resistant plate is made.

Various resistors are arranged in the known technology, as a kind of resistor that becomes the grid shape resistive element of zigzag to be formed by stacking by cast iron casting wherein through series connection, it is the starting that is used as motor at present, braking, a kind of resistor that speed governing etc. are more general, because its resistive element is a urib founding, so it is heavy, and it is frangible, power consumption is also big, also has a kind of resistive element formula resistor that forms through coiling with siderochrome aluminium strip shape material, utility model patent " highly reliable uninterrupted resistance-type noninductive resistor " as China's mandate, the patent No.: 91214250.2, promptly be the ribbon resistance sheet cast continuously a kind of because the resistor of this resistive element needs use Bolt Connection, it is big to exist contact resistance, shortcomings such as easy oxidation.

The purpose of this utility model provides a kind of mechanical strength height, long service life, resistance-stable resistor.

In order to achieve the above object, a kind of resistor provided by the utility model, comprise support, connect screw rod, resistive element, connector lug, connecting plate, sleeve, parts such as insulator, said resistive element is made by corrosion resistant plate, have circular hole on four jiaos of every resistive element, a sipes is opened in the centre, an end that keeps resistive element still links, like this a piece element has been divided into two parts symmetrical, different according to resistance and let-through current are gone out the sulculus that some ribs rise, and make the resistive element of the big small bore palisade of different size, during assembling, connect screw rod with at least five and pass the circular hole of four jiaos of resistive elements and the sipes of centre respectively, connect the screw rod two ends and be fixed on the support, connect screw surface and protect with sleeve, and every sheet resistor element separation is opened with insulator, with each sheet resistor element connected in series, by the requirement of different resistance values, resistor is divided into some levels by connecting plate, draw connector lug for every grade, each connector lug links with welding manner and resistive element.

Pass through technique scheme, because the resistive element that the utility model adopts is made by corrosion resistant plate, so mechanical strength height, not fragile, long service life, and attractive in appearance, light and handy, high temperature resistant, not oxidation, industrial frequency withstand voltage height, little, the stable performance of resistance error are a kind of electric motor starting, speed governing, the matching used ideal resistor of braking.

According to embodiment, in conjunction with the accompanying drawings, the utility model is described in further detail below.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the front view of parts 4 resistive elements among the utility model embodiment 1.

Fig. 3 is Fig. 2, Fig. 4 ... the A-A profile of Figure 12.

Fig. 4～Figure 12 is the parts 4 resistive element front views of embodiment 2～10.

Embodiment 1, with reference to Fig. 1, Fig. 2 and Fig. 3, a kind of resistor of the present utility model, comprise support 1, connect screw rod 7, resistive element 4, connector lug 2, connecting plate 3, sleeve 6, insulator 5 parts such as grade, wherein resistive element 4 is made by corrosion resistant plate, for with homemade former resistor in all-in resistance, grading resistance, let-through current, overall dimension, the unification of installation dimension etc., so that with homemade ZXI, ZX9, ZX12, ZX15 series resistance device exchanges, every resistive element adopts 200 * 300mm specification, thickness is the corrosion resistant plate of 1～1.5mm, on four jiaos, have circular hole 8, the groove 9 of a wide 16mm is opened in the centre, an end that keeps resistive element still links, requirement according to resistance and let-through current, go out the sulculus 10 that 16 road ribs rise, the A-A section of sulculus 10 is by shown in Figure 3, form certain flow area, the resistive element that is palisade, during assembling,, be fixed in then on the support 1 with connecting circular hole 8 and the middle sipes 9 that screw rod passes four jiaos of resistive elements respectively, connecting screw surface protects with sleeve 6, and open with insulator 5 and every sheet resistor element separation, with each sheet resistor element connected in series, and resistor is divided into R by connecting plate 3 ₁～R ₅Five levels are drawn connector lug 2 for every grade, and each connector lug links with welding manner and resistive element.

Embodiment 2, and is basic identical with embodiment 1 with reference to Fig. 1, Fig. 4 and Fig. 3, and only the road number of the sulculus 10 that rises of parts 4 resistive element ribs is 18 roads, and embodiment 1 is little for the current flowing section ratio.

Embodiment 3, and is basic identical with embodiment 1 and 2 with reference to Fig. 1, Fig. 5 and Fig. 3, and only to play the sulculus number be 20 roads to parts 4 resistive element ribs, and the current flowing cross section is less than the resistive element among the embodiment 2.

Embodiment 4～10, and is with reference to Fig. 1, Fig. 3, Fig. 6～12, same as the previously described embodiments substantially respectively, and only parts 4 resistive element ribs play the sulculus number and are respectively 26 roads, 28 roads, 32 roads, 36 roads, 44 roads, 50 roads, 60 roads, and the current flowing cross section also reduces gradually.

Claims

1, a kind of resistor, comprise support (1), connect screw rod (7), resistive element (4), connector lug (2), connecting plate (3), sleeve (6), insulator parts such as (5), it is characterized in that: said resistive element (4) is made by corrosion resistant plate, have circular hole (8) on four jiaos of every resistive element, a sipes (9) is opened in the centre, go out the sulculus (10) that some ribs rise according to resistance and let-through current different, form the big small bore of different size, the resistive element that is palisade, connect circular hole and middle sipes that screw rod passes four jiaos of resistive elements respectively, two ends are fixed on the support, connecting screw surface protects with sleeve, and every sheet resistor element separation is opened with insulator, with each sheet resistor element connected in series,, be divided into some levels by connecting plate by the requirement of different resistance values, draw connector lug for every grade, each connector lug links with welding manner and resistive element.

2, according to the said a kind of resistor of claim 1, it is characterized in that: said resistive element (4) is that to adopt thickness be 1～1.5mm, long * wide be that the corrosion resistant plate of 200 * 300mm specification is made.