CN103680778A - Water-cooling resistor for variable-frequency cabinet and manufacturing method thereof - Google Patents
Water-cooling resistor for variable-frequency cabinet and manufacturing method thereof Download PDFInfo
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- CN103680778A CN103680778A CN201310676079.5A CN201310676079A CN103680778A CN 103680778 A CN103680778 A CN 103680778A CN 201310676079 A CN201310676079 A CN 201310676079A CN 103680778 A CN103680778 A CN 103680778A
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Abstract
The invention discloses a water-cooling resistor for a variable-frequency cabinet and a manufacturing method of the water-cooling resistor. The water-cooling resistor comprises an insulation body with a passage, an insulation cover, a resistance band and a lead end, wherein the resistance band is arranged in the passage of the insulation body, the lead end is connected with two ends of the resistance band, the insulation body is also provided with two water gaps, the resistance band comprises a resistance band body and a plurality of lugs, the resistance band body and the lugs are integrated, every two adjacent lugs on each side of the resistance band body are oppositely distributed on the resistance band body in a staggered manner, the lugs are contacted with two inner side walls of the of the passage of the insulation body, so that the resistance band body is vertically buckled onto a central axis position of the passage of the insulation body. The water-cooling resistor is good in cooling effect, simple in structure and convenient to install.
Description
Technical field
The present invention relates to a kind of water-cooled resistor and manufacture method thereof, relate in particular to a kind of water-cooled resistor for frequency conversion tank and manufacture method thereof.
Background technology
Existing water-cooled resistor is to be provided with water stream channel in the housing of making at insulating material, and resistance filament is set in water stream channel, during work, by being flowing in the cooling water of water stream channel, takes away heat on resistance filament to reach the object cooling.But, resistance wire in existing water-cooled resistor is at work owing to being subject to the impact of current, tend to depart from the central axis position of water stream channel, can make so the mobile discharge in the resistance wire left and right sides different, thereby cause the thermal diffusivity of the resistance wire left and right sides inconsistent, affect the overall performance of water-cooled resistor; Sometimes, resistance wire even can fit on the two side of water stream channel, and at this moment resistance wire is because can not get efficiently radiates heat, thereby can burn insulation shell.
Application publication number is CN 103050203 A, the Shen Qing Publication date is that the Chinese invention patent (hereinafter to be referred as documents 1) on April 17th, 2013 discloses a kind of integrated water-cooling damping resistance for extra-high voltage direct-current converter valve, it is characterized in that: described damping resistance is the damping piece that is provided with passage in made of insulating material, described damping piece comprises that input output is the resistance filament of corrosion-resistant end, is arranged on two resistance terminals described in described damping piece both sides and is connected with resistance filament through described corrosion-resistant end; Twist, described resistance filament is arranged on the axis of described passage described passage, and described damping piece bottom is provided with discharge outlet.
Resistance filament in the water-cooled resistance of describing in above-mentioned patent documentation comprises resistive band and resistance wire, in each segmentation place bilateral symmetry of resistive band, be provided with ambroin projection, to can allow resistive band be sandwiched in water-cooled resistance passage axis by the projection embedding of its both sides, fixed resistance silk, is shown in the Fig. 2 in [0039] section and this patent documentation simultaneously.Arrange like this, have some problems: first for resistive band being fixed in the axial location in water-cooled resistance passage, also must ambroin projection be set in its both sides, cause like this inconvenience of installing; Secondly, in the course of the work, the place that ambroin projection contacts with resistive band can hinder flow of cooling water, causes local temperature to raise, and affects the performance of whole water-cooled resistance; Again, when water-cooled resistance is when power overloads, the place that ambroin projection contacts with resistive band is because current are not smooth, can cause local temperature sharply to raise, make ambroin projection produce deformation, even melt, thereby what cause that resistive band can not be stable is fixed on the central axis position in water-cooled resistance passage, the cold water discharge that one side of resistive band is passed through is reduced, and there is evenly the problems such as cooling heat dissipation in resistive band, causes whole resistance cooling effect greatly to reduce.
Summary of the invention
Technical problem to be solved by this invention is the deficiency existing for prior art, a kind of water-cooled resistor for frequency conversion tank and manufacture method thereof are provided, it can be by the stable central axis position that is fixed on water-cooled resistance passage of resistive band, to reach the even cooling effect in resistive band both sides, good cooling results and simple in structure, simple installation.
For solving above technical problem, the technical solution adopted in the present invention is: a kind of water-cooled resistor for frequency conversion tank, in comprising, be provided with the insulator of passage and be arranged on the insulating lid on described insulator, be arranged on the resistive band in described insulator passage, the lead end being connected with described resistive band two ends, described lead end is positioned at the end positions of described insulator passage, it is arranged in a side of described insulator and through described insulator, described insulator is also provided with two mouths of a river that are connected with described insulator passage two ends respectively, described resistive band comprise be vertically fastened on the strip in described insulator passage resistive band body and be arranged on described resistive band body, a plurality of lugs of lower both sides, described resistive band body and lug are one, the adjacent lug of the every side of described resistive band body is state towards the opposite and is in staggered distribution on described resistive band body, thereby contact with two side in insulator passage by described a plurality of lugs, described resistive band body is vertically fastened on the central axis position of passage of described insulator.
Preferably, the lug of the every side of described resistive band body and be vertically fastened between the locational resistive band body of central axis of described insulator passage and have certain angle, its angle degree is 120 degree to 150 degree.
Preferably, the passage of described insulator is distributed on described insulator twist.
Preferably, described two mouths of a river are arranged in the side with respect to the insulator of described lead end, and it passes through mouth of a river channel connection with described insulator passage two ends respectively.
The present invention also provides a kind of manufacture method of water-cooled resistor as above, comprises the following steps:
(1), the making of insulating lid and insulator: make the insulating lid that matches and with the insulator of passage with injection molding, on the insulator sidewall at described passage two ends, have through hole, on described insulator, be also provided with two mouths of a river that are connected with described insulator passage two ends respectively;
(2), the making of resistive band: stamp out a plurality of lugs in the both sides of a strip resistive band, the more adjacent lug of the every side of described resistive band is struck out to state towards the opposite, then two screw rods is welded to respectively to the two ends of described resistive band;
(3), the installation of insulator and resistive band: the screw rod at described resistive band two ends is passed to the through hole on the insulator sidewall at described passage two ends, thereby contact with two side in insulator passage by a plurality of lugs of described resistive band, described resistive band is vertically fastened on the central axis position of passage of described insulator, then with nut, the screw rod at described resistive band two ends is locked on insulator;
(4), the installation of insulating lid and insulator: described insulating lid is welded on insulator, completes making;
Wherein, (1) and (2) step in no particular order order.
Preferably, the lug of the every side of described resistive band body and be vertically fastened between the locational resistive band body of central axis of described insulator passage and have certain angle, its angle degree is 120 degree to 150 degree.
Preferably, the passage of described insulator is distributed on described insulator twist.
Preferably, described two mouths of a river are arranged in the side with respect to the insulator of described lead end, and it passes through mouth of a river channel connection with described insulator passage two ends respectively.
Beneficial effect of the present invention is: the lug by resistive band body both sides is vertically fastened on resistive band on the central axis position of passage of described insulator, the heat that lug produces is minimum, therefore lug can not cause because of temperature distortion the position of resistive band to change, in addition, lug is parallel with cooling water flow direction, can not cause the position of resistive band to change because being subject to cooling water flow impact, guarantee that resistive band can be fixed on the central axis position of passage of described insulator all the time, thereby the cooling water flow that guarantees resistive band both sides is consistent, make resistive band cooling heat dissipation uniformly, described lug makes resistive band body in a kind of vacant state, and it is not contacted with passage, and what contact with passage is the minimum lug of caloric value, and while having avoided the overload of water-cooled resistor power, passage is because contacting the fault that temperature distortion occurs with resistive band, lug and resistive band body are one, and cooling water can carry out lug and resistive band body effectively cooling, can not cause the phenomenon of local overheating to occur, thereby have improved the performance of whole cold water resistor, tab structures in the present invention is similar to the fin in fin radiator, has increased area of dissipation, has strengthened cooling effect, under power of the same race, the water-cooled resistor in the present invention is the volume 1/10 of the cooling resistance of nature, has saved space, cost.When mounted, as long as resistive band is vertically fastened in described passage by lug, install extremely simple and convenient.
Accompanying drawing explanation
Fig. 1 is the perspective view one of water-cooled resistor in the present invention;
Fig. 2 is the perspective view two of water-cooled resistor in the present invention;
Fig. 3 is the theory structure schematic diagram that the resistive band of water-cooled resistor in the present invention is fastened on insulated channel central axis position;
Fig. 4 is the sectional structure schematic diagram along the delivery port axis of water-cooled resistor in the present invention;
In figure: 1. passage, 2. insulator, 3. insulating lid, the 4. mouth of a river, 5. resistive band body, 6. lug, 7. screw rod, 8. nut and pad, 9. angle, 10. insulator passage two ends, 11. mouth of a river passages, 12. through holes.
Embodiment
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is done to further detailed elaboration.
Embodiment: as Fig. 1, shown in Fig. 2 and Fig. 4, a kind of water-cooled resistor for frequency conversion tank, in comprising, be provided with the insulator 2 of passage 1 and be arranged on the insulating lid 3 on described insulator 2, be arranged on the resistive band in described insulator passage 1, the lead end being connected with described resistive band two ends, described lead end is positioned at 10 positions, described insulator passage two ends, it is arranged in a side of described insulator 2 and through described insulator 2, described insulator 2 is also provided with two mouths of a river 4 that are connected with described insulator passage two ends 10 respectively, described resistive band comprises and is vertically fastened on the resistive band body 5 of the strip in described insulator passage 1 and is arranged on described resistive band body 5, a plurality of lugs 6 of lower both sides, described resistive band body 5 is one with lug 6, the lug 6 that the every side of described resistive band body 5 is adjacent is state towards the opposite and is in staggered distribution on described resistive band body 5, thereby contact with two side in insulator passage 1 by described a plurality of lugs 6, described resistive band body 5 is vertically fastened on the central axis position of passage 1 of described insulator.Described lead end comprises the screw rod 7 being connected with described resistive band two ends, and described screw rod 7 one end are connected with described resistive band, and its other one end, through a side of described insulator 2, is fixedly connected on screw rod 7 in a side of described insulator 2 by nut and pad 8.During work, a mouth of a river 4 is water inlet, and the another one mouth of a river 4 is delivery port, and the Inlet and outlet water at two mouths of a river can exchange.In documents D1, be by the left and right sides in each segmentation place of resistive band, to be arranged with ambroin projection to fix resistive band, and the present invention is by being arranged on the projection of the both sides up and down of the resistive band body resistive band that is fixed, and lug and resistive band body are integrated, compare with documents 1, during work, the heat that lug 6 in the present invention produces is minimum, therefore lug 6 can not cause because of temperature distortion the position of resistive band to change, guarantee that resistive band can be fixed on the central axis position of passage of described insulator all the time, thereby the cooling water flow that guarantees resistive band both sides is consistent, make resistive band cooling heat dissipation uniformly, in addition, described lug 6 makes resistive band body in a kind of vacant state, it is not contacted with passage 1, what contact with passage 1 is the minimum lug of caloric value 6, while having avoided the overload of water-cooled resistor power, passage 1 is because contacting the fault that temperature distortion occurs with resistive band, lug 6 is one with resistive band body 5, and cooling water can carry out lug 6 and resistive band body 5 effectively cooling, can not cause the phenomenon of local overheating to occur, thereby improve the performance of whole cold water resistor.
The lug 6 that the every side of described resistive band body 5 is adjacent is that the state that is towards the opposite is in staggered distribution on described resistive band body 5, be that a plurality of lugs 6 of described resistive band body 5 every sides are successively state towards the opposite and are in staggered distribution on described resistive band body 5, a plurality of lugs 6 towards the opposite by being successively of upper and lower both sides contact with insulated channel 1 two side, resistive band body 5 are fastened on the central axis position of insulated channel 1.Resistive band in documents 1 is arranged with ambroin projection by the left and right sides and fixes resistive band, and ambroin projection can hinder flowing of cooling water, affects cooling effect; In addition, cold water current can cause certain impact to ambroin projection, and under the percussion of cold water current, resistive band can be moved, thereby cannot guarantee on its central axis position that is fixed on all the time insulated channel; And lug 6 of the present invention is arranged on the two ends up and down of resistive band body 5, it is parallel relation with water (flow) direction, makes flow of cooling water drag minimization, and good cooling results can not impacted and not cause the position of resistive band to change because being subject to cooling water flow.
As shown in Figure 3, the lug 6 of the every side of described resistive band body and be vertically fastened between the locational resistive band body 5 of central axis of described insulator passage and have certain angle 9, its angle 9 number of degrees are 135 degree, can be also 120 degree or 150 degree.Now, on the central axis position that is fastened on described insulator passage that resistive band body 5 more can be firm.In the present embodiment, the lug 6 of resistive band body is the symmetrical resistive band body 5 upper and lower both sides that are distributed in, and also can asymmetricly be distributed in the upper and lower both sides of resistive band body 5.
As shown in Figure 2, described insulator passage 1 is distributed on described insulator 2 twist, is similar to " mosquito-repellent incense " structure, and whole insulator passage 1 is that geometry is tangent, does not have lofty flex point, makes water-cooled damping resistance flow resistance less, makes current unobstructed.
As shown in Figure 4, described two mouths of a river are arranged in the side with respect to the insulator 2 of described lead end, and it is communicated with by mouth of a river passage 11 with described insulator passage two ends 10 respectively.Lead end in the cooling water at 10 places, insulated channel two ends be charged, but owing to being provided with the mouth of a river passage 11 of a segment distance between the 10Yu mouth of a river, insulated channel two ends 4, thereby the cooling water that has guaranteed delivery port is uncharged, the also charged and generation of the security incident that causes of the cooling water of having avoided the mouth of a river.
As shown in Figures 1 to 4, the present invention also provides a kind of manufacture method of water-cooled resistor as above, comprises the following steps:
(1), the making of insulating lid and insulator: make the insulating lid 3 that matches and with the insulator 2 of passage 1 with injection molding, on insulator 2 sidewalls at described passage two ends, have through hole 12, on described insulator 2, be also provided with two mouths of a river 4 that are connected with described insulator passage two ends 10 respectively;
(2), the making of resistive band: stamp out a plurality of lugs 6 in the both sides of a strip resistive band, the more adjacent lug 6 of the every side of described resistive band is struck out to state towards the opposite, then two screw rods 7 is welded to respectively to the two ends of described resistive band;
(3), the installation of insulator and resistive band: the through hole 12 that the screw rod at described resistive band two ends 7 is passed on the insulator sidewall at described passage two ends, thereby contact with two side in insulator passage by a plurality of lugs of described resistive band again, described resistive band is vertically fastened on the central axis position of passage of described insulator, then with nut, the screw rod 7 at described resistive band two ends is locked on insulator 2;
(4), the installation of insulating lid and insulator: described insulating lid 3 is welded on insulator 2, completes making;
Wherein, (1) and (2) step in no particular order order.
The lug 6 of the every side of described resistive band body and be vertically fastened between the locational resistive band body 5 of central axis of described insulator passage and have certain angle 9, its angle 9 number of degrees are 135 degree, can be also 120 degree or 150 degree.
Described insulator passage 1 is distributed on described insulator 2 twist.
Described two mouths of a river are arranged in the side with respect to the insulator 2 of described lead end, and it is communicated with by mouth of a river passage 11 with described insulator passage two ends 10 respectively.
Described insulating lid and insulator adopt nylon composite plastic.
Data by the water-cooled resistor in the present invention after by the testing current of various power are as following table:
As can be seen from the above table, the cooling performance of the water-cooled resistor in the present invention is good.
In sum, the lug of water-cooled resistor in the present invention by resistive band body both sides is vertically fastened on resistive band on the central axis position of passage of described insulator, the heat that lug produces is minimum, therefore lug can not cause because of temperature distortion the position of resistive band to change, in addition, lug is parallel with cooling water flow direction, can not cause the position of resistive band to change because being subject to cooling water flow impact, guarantee that resistive band can be fixed on the central axis position of passage of described insulator all the time, thereby the cooling water flow that guarantees resistive band both sides is consistent, make resistive band cooling heat dissipation uniformly, described lug makes resistive band body in a kind of vacant state, and it is not contacted with passage, and what contact with passage is the minimum lug of caloric value, and while having avoided the overload of water-cooled resistor power, passage is because contacting the fault that temperature distortion occurs with resistive band, lug and resistive band body are one, and cooling water can carry out lug and resistive band body effectively cooling, can not cause the phenomenon of local overheating to occur, thereby have improved the performance of whole cold water resistor, tab structures in the present invention is similar to the fin in fin radiator, has increased area of dissipation, has strengthened cooling effect, under power of the same race, the water-cooled resistor in the present invention is the volume 1/10 of the cooling resistance of nature, has saved space, cost.When mounted, as long as resistive band is vertically fastened in described passage by lug, install extremely simple and convenient.
Above embodiment is used for illustrative purposes only, but not limitation ot it.The relevant technologies personnel in relevant field, without departing from the spirit and scope of the present invention, can also make a variety of changes or convert.Therefore, all technical schemes that are equal to also should belong to protection scope of the present invention.Protection scope of the present invention should be limited by each claim.
Claims (8)
1. the water-cooled resistor for frequency conversion tank, in comprising, be provided with the insulator of passage and be arranged on the insulating lid on described insulator, be arranged on the resistive band in described insulator passage, the lead end being connected with described resistive band two ends, described lead end is positioned at the end positions of described insulator passage, it is arranged in a side of described insulator and through described insulator, described insulator is also provided with two mouths of a river that are connected with described insulator passage two ends respectively, it is characterized in that: described resistive band comprise be vertically fastened on the strip in described insulator passage resistive band body and be arranged on described resistive band body, a plurality of lugs of lower both sides, described resistive band body and lug are one, the adjacent lug of the every side of described resistive band body is state towards the opposite and is in staggered distribution on described resistive band body, thereby contact with two side in insulator passage by described a plurality of lugs, described resistive band body is vertically fastened on the central axis position of passage of described insulator.
2. water-cooled resistor according to claim 1, it is characterized in that: the lug of the every side of described resistive band body and be vertically fastened between the locational resistive band body of central axis of described insulator passage and have certain angle, its angle degree is 120 degree to 150 degree.
3. the water-cooled resistor of stating according to claim 1 or 2, is characterized in that: the passage of described insulator is distributed on described insulator twist.
4. water-cooled resistor according to claim 3, is characterized in that: described two mouths of a river are arranged in the side with respect to the insulator of described lead end, and it passes through mouth of a river channel connection with described insulator passage two ends respectively.
5. according to a manufacture method for the water-cooled resistor described in any one claim in claim 1 to 4, it is characterized in that: comprise the following steps:
(1), the making of insulating lid and insulator: make the insulating lid that matches and with the insulator of passage with injection molding, on the insulator sidewall at described passage two ends, have through hole, on described insulator, be also provided with two mouths of a river that are connected with described insulator passage two ends respectively;
(2), the making of resistive band: stamp out a plurality of lugs in the both sides of a strip resistive band, the more adjacent lug of the every side of described resistive band is struck out to state towards the opposite, then two screw rods is welded to respectively to the two ends of described resistive band;
(3), the installation of insulator and resistive band: the screw rod at described resistive band two ends is passed to the through hole on the insulator sidewall at described passage two ends, thereby contact with two side in insulator passage by a plurality of lugs of described resistive band, described resistive band is vertically fastened on the central axis position of passage of described insulator, then with nut, the screw rod at described resistive band two ends is locked on insulator;
(4), the installation of insulating lid and insulator: described insulating lid is welded on insulator, completes making;
Wherein, (1) and (2) step in no particular order order.
6. the manufacture method of water-cooled resistor according to claim 5, it is characterized in that: the lug of the every side of described resistive band body and be vertically fastened between the locational resistive band body of central axis of described insulator passage and have certain angle, its angle degree is 120 degree to 150 degree.
7. the manufacture method of water-cooled resistor according to claim 6, is characterized in that: the passage of described insulator is distributed on described insulator twist.
8. the manufacture method of water-cooled resistor according to claim 7, is characterized in that: described two mouths of a river are arranged in the side with respect to the insulator of described lead end, and it passes through mouth of a river channel connection with described insulator passage two ends respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310676079.5A CN103680778B (en) | 2013-12-13 | 2013-12-13 | A kind of water-cooled resistor for frequency conversion tank and manufacture method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310676079.5A CN103680778B (en) | 2013-12-13 | 2013-12-13 | A kind of water-cooled resistor for frequency conversion tank and manufacture method thereof |
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| CN103680778A true CN103680778A (en) | 2014-03-26 |
| CN103680778B CN103680778B (en) | 2016-06-15 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114334320A (en) * | 2021-12-06 | 2022-04-12 | 广东福德电子有限公司 | High-load impact-resistant resistor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10199701A (en) * | 1997-01-07 | 1998-07-31 | Toshiba Corp | Liquid-cooled resistor and manufacture thereof |
| CN201156456Y (en) * | 2007-12-21 | 2008-11-26 | 中国西电电气股份有限公司 | Water cooling damping resistor for DC power transmission converter valve |
| DE202012009701U1 (en) * | 2012-09-13 | 2013-01-29 | Reo Inductive Components Ag | Electrical resistance |
| CN103050203A (en) * | 2012-12-13 | 2013-04-17 | 国网智能电网研究院 | Integrated water-cooling damping resistor for extra-high voltage direct current converter valve |
-
2013
- 2013-12-13 CN CN201310676079.5A patent/CN103680778B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10199701A (en) * | 1997-01-07 | 1998-07-31 | Toshiba Corp | Liquid-cooled resistor and manufacture thereof |
| CN201156456Y (en) * | 2007-12-21 | 2008-11-26 | 中国西电电气股份有限公司 | Water cooling damping resistor for DC power transmission converter valve |
| DE202012009701U1 (en) * | 2012-09-13 | 2013-01-29 | Reo Inductive Components Ag | Electrical resistance |
| CN103050203A (en) * | 2012-12-13 | 2013-04-17 | 国网智能电网研究院 | Integrated water-cooling damping resistor for extra-high voltage direct current converter valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114334320A (en) * | 2021-12-06 | 2022-04-12 | 广东福德电子有限公司 | High-load impact-resistant resistor |
| CN114334320B (en) * | 2021-12-06 | 2024-04-05 | 广东福德电子有限公司 | High-load impact-resistant resistor |
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| CN103680778B (en) | 2016-06-15 |
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Address after: Zhuzhou Lukou Town Tree Hill 412007 in Hunan city of Zhuzhou Province Patentee after: Zhuzhou Zhongche AVC Cooling Technology Co. Ltd. Address before: Zhuzhou Lukou Town Tree Hill 412007 in Hunan city of Zhuzhou Province Patentee before: Zhuzhou CSR Qihong Heat Dissipation Technology Co., Ltd. |