CN112086252A - High-voltage ultra-large-capacity water-cooled resistor - Google Patents
High-voltage ultra-large-capacity water-cooled resistor Download PDFInfo
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- CN112086252A CN112086252A CN202010959385.XA CN202010959385A CN112086252A CN 112086252 A CN112086252 A CN 112086252A CN 202010959385 A CN202010959385 A CN 202010959385A CN 112086252 A CN112086252 A CN 112086252A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 137
- 238000001816 cooling Methods 0.000 claims abstract description 95
- 239000000956 alloy Substances 0.000 claims abstract description 85
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 85
- 238000009413 insulation Methods 0.000 claims abstract description 32
- 239000000498 cooling water Substances 0.000 claims description 9
- 239000004642 Polyimide Substances 0.000 claims description 8
- 229920001721 polyimide Polymers 0.000 claims description 8
- 239000010445 mica Substances 0.000 claims description 7
- 229910052618 mica group Inorganic materials 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 8
- 230000017525 heat dissipation Effects 0.000 abstract description 7
- 230000000149 penetrating effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C1/00—Details
- H01C1/08—Cooling, heating or ventilating arrangements
- H01C1/082—Cooling, heating or ventilating arrangements using forced fluid flow
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C13/00—Resistors not provided for elsewhere
- H01C13/02—Structural combinations of resistors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01C—RESISTORS
- H01C3/00—Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids
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- Details Of Resistors (AREA)
Abstract
The invention discloses a high-voltage super-large capacity water-cooled resistor, which comprises: a resistor housing; at least two insulation pipes are arranged in parallel; the resistance assembly comprises a plurality of water cooling plates and a plurality of resistance units, the water cooling plates and the resistance units are sequentially and alternately arranged, each resistance unit comprises a first insulation layer, two alloy resistance pieces and two second insulation layers, the two alloy resistance pieces are arranged between the two second insulation layers, and the first insulation layer is arranged between the two alloy resistance pieces. The high-voltage ultra-large-capacity water-cooled resistor has a good heat dissipation effect and can work under the working condition of continuous high voltage and high power or under the working condition of high pulse current.
Description
Technical Field
The invention relates to the field of electrical components, in particular to a high-voltage super-large-capacity water-cooled resistor.
Background
The resistor is one of indispensable components in the electronic industry, and the application fields of the resistor are numerous. In some circuits, the resistor is required to withstand a high pulse current, which causes the resistor to generate a large amount of heat, which if not dissipated in a timely manner, can cause the resistor to burn out. At present, some water-cooled resistors exist in the market, and the water-cooled heat dissipation devices inside the water-cooled resistors occupy larger volume in the resistors, so that the power density of the whole structure is lower, and the continuous high-power work cannot be maintained.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a high-voltage super-large-capacity water-cooled resistor which is small in size, has a good heat dissipation effect and can work under the working condition of continuous high voltage and high power or under the working condition of high pulse current.
According to the embodiment of the invention, the high-voltage ultra-large capacity water-cooled resistor comprises: a resistor housing; at least two insulation pipes are arranged in parallel; the resistance assembly is arranged inside the resistance shell and provided with a plurality of water cooling plates and a plurality of resistance units, the water cooling plates and the resistance units are sequentially and alternately arranged and penetrate through the insulation pipes to be fixed, the water cooling plates are internally provided with water cooling channels and the water cooling plates which are arranged in parallel, the resistance units are provided with a first insulation layer, two alloy resistance pieces and two second insulation layers, the two alloy resistance pieces are located in the middle of the two second insulation layers, and the first insulation layer is located in the middle of the two alloy resistance pieces.
The high-voltage ultra-large capacity water-cooled resistor provided by the embodiment of the invention at least has the following beneficial effects: the resistor units and the water cooling plates are sequentially and alternately arranged, so that the water cooling plates are arranged on two sides of each resistor unit, and two alloy resistor discs are arranged between the two water cooling plates, so that each alloy resistor disc can be well radiated, the power density in the resistor is improved, and the resistor can be continuously used in high-power occasions; meanwhile, as the alloy resistance card is adopted, the specific heat capacity is relatively high, and the alloy resistance card can adapt to the working condition of high pulse current.
According to some embodiments of the invention, there is one more water-cooled plate than the resistor unit, and the outermost side of the resistor assembly is the water-cooled plate.
According to some embodiments of the invention, the resistance unit is further provided with at least two insulating collars, the insulating collars are sleeved on the insulating tube, and the insulating collars can be embedded into the first insulating layer and the two alloy resistance sheets.
According to some embodiments of the invention, the resistor assembly is further provided with at least two first electrode connecting pieces, and two poles of each alloy resistor piece are respectively and electrically connected with the two first electrode connecting pieces.
According to some embodiments of the invention, two second electrode connecting pieces are arranged between two alloy resistance pieces in the resistance unit, the two second electrode connecting pieces are respectively located at two electrodes of the alloy resistance pieces, and the first electrode connecting piece is fixedly connected with an electrode of one alloy resistance piece in the same resistance unit.
According to some embodiments of the invention, the two electrode plates are further provided, the first electrode connecting pieces are divided into two groups, one group of the first electrode connecting pieces is fixedly connected with one electrode plate, the other group of the first electrode connecting pieces is fixedly connected with the other electrode plate, and the two first electrode connecting pieces connected with the same alloy resistance card are respectively connected with different electrode plates.
According to some embodiments of the invention, the water cooling channel is provided with a water inlet and a water outlet, the water inlet and the water outlet are respectively used for connecting with an external cooling water pipeline, and the water outlet is provided with a temperature detection device.
According to some embodiments of the invention, the water inlet and the water outlet are respectively arranged at both ends of the water-cooling plate.
According to some embodiments of the invention, two main water pipes and a plurality of water distribution pipes are further arranged, and one main water pipe is respectively connected with the water inlets of the water cooling plates through the water distribution pipes; the other main water pipe is respectively connected with the water outlets on the water cooling plates through the water distribution pipe.
According to some embodiments of the invention, the first insulating layer is mica and the second insulating layer is polyimide.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a resistor according to an embodiment of the invention;
fig. 2 is a schematic diagram of an internal structure of the resistor shown in fig. 1;
fig. 3 is an exploded view of the internal structure of the resistor shown in fig. 2.
Reference numerals:
the resistor comprises a resistor shell 100, an insulating pipe 110, a resistor unit 120, a first insulating layer 121, an alloy resistor disc 122, a second insulating layer 123, an insulating collar 124, a first electrode connecting sheet 125, a second electrode connecting sheet 126, a water cooling plate 130, a main water pipe 131, a water dividing pipe 132, an electrode plate 140, an extension plate 150 and a water discharge outlet 160.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
Referring to fig. 1 to 3, a high-voltage ultra-large capacity water-cooled resistor according to some embodiments of the present invention includes a resistor housing 100, an insulating tube 110, and a resistor assembly. The insulating tubes 110 are used for fixing the resistor assembly, the insulating tubes 110 are arranged inside the resistor casing 100, at least two insulating tubes 110 are arranged, and at least two insulating tubes 110 are arranged in parallel. The resistance assembly is provided with a plurality of water-cooling plates 130 and a plurality of resistance units 120, the plurality of water-cooling plates 130 and the resistance units 120 are sequentially and alternately arranged, the plurality of water-cooling plates 130 are connected in parallel through water pipes, a plurality of water-cooling channels are arranged in the water-cooling plates 130, and the water-cooling channels can be used for cooling water to flow through so as to absorb heat of the resistance units 120.
Each resistive unit 120 comprises a first insulating layer 121, two alloyed resistive sheets 122 and two second insulating layers 123, wherein the two alloyed resistive sheets 122 are arranged between the two second insulating layers 123, and the first insulating layer 121 is arranged between the two alloyed resistive sheets 122. Mounting holes corresponding to the number and positions of the insulating tubes 110 are formed in the first insulating layer 121, the alloy resistor disc 122, the second insulating layer 123 and the water cooling plate 130, and the positions of the mounting holes in the first insulating layer 121, the alloy resistor disc 122, the second insulating layer 123 and the water cooling plate 130 are the same. The insulation tube 110 passes through a resistor assembly composed of a first insulation layer 121, an alloy resistor disc 122, a second insulation layer 123 and a water cooling plate 130, the first insulation layer 121, the alloy resistor disc 122, the second insulation layer 123 and the water cooling plate 130 are arranged on the insulation tube 110 in a penetrating mode, fasteners are arranged at two ends of the insulation tube 110, and the resistor unit 120 and the water cooling plate 130 are fixed on the insulation tube 110 in a tight fit mode.
In this embodiment, the screw rod may be inserted through the inside of the insulating tube 110, and both ends of the screw rod may be fastened by nuts, so that the insulating tube 110, the resistor unit 120 and the water cooling plate 130 located on the insulating tube 110 are closely fixed to the screw rod. According to actual circumstances, the resistor unit 120 and the water cooling plate 130 may be fixed to the insulating tube 110 by directly providing threads at both ends of the insulating tube 110 and using nuts as fasteners. And threaded holes are formed in the water cooling plate 130 positioned on the outermost side, through holes corresponding to the threaded holes are formed in the resistor shell 100, and bolts penetrate through the through holes and are connected with the threaded holes to fix the resistor assembly on the resistor shell 100. The resistor assembly is fixed between at least two insulating tubes 110 and is closely attached to each other, so that the first insulating layer 121, the alloy resistor disc 122, the second insulating layer 123, and the water-cooling plate 130 can be overlapped and parallel. When the resistance units 120 are arranged to be a plurality of, the adjacent resistance units 120 share one water-cooling plate 130, and at this time, one water-cooling plate 130 can cool two alloy resistance sheets 122 simultaneously, and can play a role in simplifying the resistor structure and improving the power density.
The advantage of setting up like this is, under the operating mode of high pulse current in the twinkling of an eye, the resistor can produce a large amount of heats, adopts the alloy as the material of resistance card, because it has high temperature resistance characteristic, consequently can absorb more heat and make the resistor difficult to be burnt out. The structure of the resistor assembly is set to be that one resistor unit 120 is clamped between every two water-cooling plates 130, one side of each alloy resistor disc 122 in the resistor unit 120 is provided with one water-cooling plate 130, heat generated by the alloy resistor disc 122 when the resistor disc is powered on can be timely conducted to the water-cooling plates 130, and under the condition that the resistor is guaranteed to have enough power density, the heat dissipation system of the resistor assembly can meet the heat dissipation requirement of large heat.
All the water-cooling plates 130 and the resistance units 120 are alternately arranged in sequence and are fixedly arranged on the insulating tube 110 in a penetrating manner, when all the water-cooling plates 130 and the resistance units 120 are closely attached, the water-cooling plates 130 and the resistance units 120 are in a state of being parallel to each other, and all the water-cooling plates 130 or the resistance units 120 are the same, so that the potentials of the alloy resistance sheets 122 in the resistance units 120 at the same vertical position are the same. Since the potentials of two adjacent alloy resistance sheets 122 at the same vertical position are the same, the voltage between the two adjacent alloy resistance sheets 122 is zero, so that the insulating layer between the alloy resistance sheets 122 can be well prevented from being broken down. If the water cooling plate 130 is electrified in an extreme case, the electric potential at the same vertical position of the parallel water cooling plates 130 is the same, and the second insulating layer 123 between the water cooling plate 130 and the alloy resistor disc 122 can also be prevented from being broken down. Meanwhile, because the water cooling plate 130 and the resistor unit 120 are arranged in parallel, the resistor assembly does not need to be provided with excessive insulating materials, so that the volume of the insulating materials in the resistor can be reduced, and the volume of the resistor can be further reduced.
According to some embodiments of the present invention, there is one more water-cooling plate 130 than the resistor unit 120, and the outermost sides of the resistor assembly are the water-cooling plates 130. In the state that the water-cooling plates 130 and the resistance units 120 are sequentially and alternately arranged, one more water-cooling plate 130 is arranged than the resistance units 120, so that two sides of all the resistance units 120 are provided with one water-cooling plate 130, and the heat dissipation effect of the resistor can be improved.
Referring to fig. 3, according to some embodiments of the present invention, the resistance unit 120 is further provided with at least two insulating collars 124, the insulating collars 124 are sleeved on the insulating tube 110, and the insulating collars 124 can be embedded in the first insulating layer 121 and the two alloy resistance sheets 122. Two insulating collars 124 are arranged in each resistor unit 120, the aperture of the mounting holes in the first insulating layer 121 and the two alloy resistor sheets 122 is larger than the aperture of the mounting holes in the second insulating layer 123 and the water cooling plate 130, the aperture difference is the difference between the outer diameter and the inner diameter of the insulating collars 124, the insulating collars 124 are arranged in the mounting holes in the first insulating layer 121 and the alloy resistor sheets 122, and the insulating collars 124 are sleeved on the insulating tubes 110. By such an arrangement, the purpose is to increase the creepage distance and the electric gap between the alloy resistor discs 122 arranged on the insulating sleeve ring 124 by using the insulating sleeve ring 124 sleeved on the insulating tube 110, thereby avoiding the phenomenon of electric leakage. The insulating collar 124 may be made of mica or polyimide, as the case may be.
Referring to fig. 3, according to some embodiments of the invention, the resistor assembly is further provided with at least two first electrode connection pads 125, and two poles of each alloy resistor sheet 122 are electrically connected with the two first electrode connection pads 125 respectively. Two opposite corners of each alloy resistance sheet 122, which are farthest from each other, are provided with tabs of two electrodes, and the two first electrode connecting sheets 125 are electrically connected with the tabs of the two electrodes, respectively. By providing the first electrode connecting piece 125, the purpose is to facilitate connection with an external power line, and the first electrode connecting piece 125 is provided on each resistor unit 120, so that the connection relationship between each resistor unit 120 can be freely selected when the resistor is connected with an external circuit, that is, different resistances and powers can be selected according to actual needs.
Referring to fig. 3, according to some embodiments of the present invention, two second electrode connection pads 126 are disposed between two alloy resistance sheets 122 in the same resistance unit 120, the two second electrode connection pads 126 are respectively located at electrodes of the alloy resistance sheets 122, and the first electrode connection pad 125 is fixedly connected to an electrode of one alloy resistance sheet 122 in the same resistance unit 120. Two second electrode connecting pieces 126 are arranged between the two alloy resistance pieces 122 and are positioned at the two electrodes of the alloy resistance pieces 122, so that one electrode of each of the two alloy resistance pieces 122 at the same position is electrically connected, namely, the two alloy resistance pieces 122 are connected in parallel, and then the two first electrode connecting pieces 125 are respectively connected with the two electrodes of one alloy resistance piece 122, so that the two alloy resistance pieces 122 can be electrically connected with an external circuit through the two first electrode connecting pieces 125. Through setting up like this, can play the effect of simplifying the structure, saving resistor inner space.
Referring to fig. 1 and 3, according to some embodiments of the present invention, two electrode plates 140 are further provided, the plurality of first electrode tabs 125 are respectively provided in two groups, one group of first electrode tabs 125 is fixedly connected to one electrode plate 140, the other group of first electrode tabs 125 is fixedly connected to the other electrode plate 140, and the two first electrode tabs 125 connected to the same alloy resistor sheet 122 are respectively connected to different electrode plates 140. The electrode plate 140 is advantageous in that a plurality of resistor units 120 can be connected in parallel to be electrically connected to an external circuit through two electrode plates 140, thereby facilitating connection of the resistor to the external circuit. Of course, according to practical circumstances, the extension plates 150 may be respectively disposed on the two electrode plates 140, and the extension plates 150 and the electrode plates 140 may be integrally formed. Two strip-shaped grooves corresponding to the extension plates 150 are formed in the resistor shell 100, the strip-shaped grooves are internally and externally communicated, so that the extension plates 150 can penetrate out of the strip-shaped grooves to the outside of the resistor, and the parts of the extension plates 150 penetrating out of the strip-shaped grooves are folded and parallel to the side wall of the resistor shell 100, so that the whole volume of the resistor is reduced. The extension plate 150 is provided with a plurality of connecting holes penetrating through the strip-shaped groove, so that the extension plate can be conveniently and electrically connected with an external circuit.
According to some embodiments of the invention, the water cooling channel is provided with a water inlet and a water outlet, the water inlet and the water outlet are respectively used for connecting an external cooling water pipeline, and the water outlet is provided with a temperature detection device. By arranging the temperature detection device, the temperature of the resistor can be judged through the water temperature, and then the flow rate, the flow speed and the like of the cooling water can be changed to adjust the temperature of the resistor.
According to some embodiments of the present invention, the water inlet and the water outlet are respectively disposed at both ends of the water-cooling plate 130. The water inlet and the water outlet are respectively arranged at two ends of the water cooling plate 130, and the purpose of the water cooling plate is to enable the temperatures of the alloy resistance pieces 122 located at the same vertical direction to be the same and to avoid uneven cooling of the alloy resistance pieces 122.
Referring to fig. 1 and 3, according to some embodiments of the present invention, two main water pipes 131 and a plurality of water diversion pipes 132 are further provided, one main water pipe 131 is connected to the water inlet of each water cooling plate 130 through the water diversion pipe 132, and the other main water pipe 131 is connected to the water outlet of each water cooling plate 130 through the water diversion pipe 132. Two main water pipes 131 are provided, two sets of water distribution pipes 132 are also provided, each main water pipe 131 is connected with one set of water distribution pipe 132, one set of water distribution pipe 132 is connected with the water inlet of each water cooling plate 130, and the other set of water distribution pipe 132 is connected with the water outlet of each water cooling plate 130. The parallel connection between the water-cooling plates 130 is more easily realized by providing the main water pipe 131 and the branch water pipe 132 corresponding thereto.
According to actual conditions, the main water pipe 131 is also provided with a quick-release joint. Through set up quick detach joint on main water pipe 131, be convenient for with the water route intercommunication of resistor and outside, the plug is convenient, uses swiftly. Meanwhile, a water outlet 160 is provided at the lowest water level of the main water pipe 131, and a plug is provided at the water outlet. When the resistor is not used, the plug can be removed, and the cooling water in the water cooling plate 130, the water diversion pipe 132 and the main water pipe 131 is discharged through the water discharge opening 160, so that the cooling channel of the cooling water is prevented from being corroded.
According to some embodiments of the present invention, the first insulating layer 121 is mica and the second insulating layer 123 is polyimide. The first insulating layer 121 and the second insulating layer 123 are respectively made of mica and polyimide, so that the two alloy resistance sheets 122 are higher in temperature due to the fact that insulation treatment needs to be carried out between the two alloy resistance sheets 122 and no cooling device is arranged between the two alloy resistance sheets, and mica with higher high temperature resistance limit needs to be used as the first insulating layer 121 between the two alloy resistance sheets 122; the polyimide has good insulating property, and the size of the polyimide is thin, so that heat on the alloy resistance sheet 122 is not influenced to be conducted to the water cooling plate 130, and the heat dissipation effect of the resistor is not influenced.
Referring to fig. 1 to 3, a high-voltage ultra-large capacity water-cooled resistor according to an embodiment of the present invention is described in detail in a specific embodiment. It is to be understood that the following description is only exemplary, and not a specific limitation of the invention.
A high-voltage ultra-large capacity water-cooled resistor comprises a resistor shell 100, an insulating tube 110, a resistor unit 120, a water-cooled plate 130 and an electrode plate 140. The number of the insulation pipes 110 is two, the two insulation pipes 110 are arranged in parallel, and screws are arranged in the two insulation pipes 110, and two ends of each screw protrude out of the insulation pipes 110. The electrode plates 140 are also provided in two. The number of the resistor units 120 is set to be several, the several resistor units 120 are arranged in parallel, and the specific number of the resistor units 120 can be set according to the actual application scenario. The water-cooling plates 130 are provided in number, and the number of the water-cooling plates 130 is one more than the number of the resistance units 120.
The resistance unit 120 includes a first insulating layer 121, an alloy resistance chip 122, a second insulating layer 123, a first electrode connection chip 125, a second electrode connection chip 126, and an insulating collar 124, wherein the alloy resistance chip 122, the second insulating layer 123, the first electrode connection chip 125, the second electrode connection chip 126, and the insulating collar 124 are provided in two. Mica is used as the first insulating layer 121, and polyimide is used as the second insulating layer 123. The water-cooling plates 130 and the resistor units 120 are alternately arranged with each other, two second insulation layers 123 between the two water-cooling plates 130, two alloy resistance sheets 122 between the two second insulation layers 123, and one first insulation layer 121 between the two alloy resistance sheets 122. The first insulating layer 121, the alloy resistance sheet 122, the second insulating layer 123 and the water cooling plate 130 are all provided with more than two concentric mounting holes, wherein the diameters of the mounting holes on the first insulating layer 121 and the two alloy resistance sheets 122 are larger than those of the mounting holes on the second insulating layer 123 and the water cooling plate 130, and the difference of the diameters is the difference between the outer diameter and the inner diameter of the insulating collar 124. The insulating collar 124 is disposed between the first insulating layer 121, the alloy resistor disc 122 and the insulating tube 110, and the second insulating layer 123 and the water-cooling plate 130 are disposed directly on the insulating tube 110. The two electrodes of the alloy resistance sheet 122 protrude out of the body of the alloy resistance sheet, the first insulating layer 121 separates the two alloy resistance sheets 122 except the two electrodes, the two second electrode connecting sheets 126 are sandwiched between the two opposite electrodes of the alloy resistance sheet 122, the two first electrode connecting sheets 125 connect the two electrodes of one alloy resistance sheet 122, and the two second electrode connecting sheets 126 enable the two alloy resistance sheets 122 to be in a parallel connection state. The first electrode pads 125 are divided into two groups, the first electrode pads 125 at the same vertical position are divided into one group, and the two electrode plates 140 are respectively connected to the two groups of first electrode pads 125, so that all the resistor units 120 are connected in parallel. The water cooling plate 130 is provided with a water cooling pipeline inside, the two ends of the water cooling plate 130 are provided with a water inlet and a water outlet connected with the water cooling pipeline, all the water inlets and the water outlets are respectively connected with a water dividing pipe 132, the water dividing pipe 132 connected with the water inlet is connected with a main water pipe 131, the water dividing pipe 132 connected with the water outlet is connected with the main water pipe 131, and thus the water cooling plates 130 are connected in parallel. Since the same main water pipe 131 supplies cooling water, the temperature of the cooling water in each water cooling plate 130 is the same, so that the cooling effect of each water cooling plate 130 on the alloy resistance sheet 122 is the same.
According to the high-voltage ultra-large capacity water-cooled resistor, at least some effects can be achieved as follows: the two alloy resistance pieces 122 are separated by the first insulating layer 121, and one water-cooling plate 130 is arranged on one side of each of the two alloy resistance pieces 122, so that the resistance unit 120 in the resistor can be ensured to have a good cooling effect, and meanwhile, the resistor can be ensured to have high power density as much as possible, and the resistor can continuously work under a working condition of high power; meanwhile, the alloy resistance card 122 is adopted, the specific heat capacity is relatively high, and the alloy resistance card can adapt to the working condition of high pulse current; the alloy resistance piece 122 and the water cooling plate 130 are in a parallel state, so that the alloy resistance piece 122 or the water cooling plate 130 located at the same vertical position can be in a state of the same potential, and the alloy resistance piece 122 or the water cooling plate 130 has the same potential, so that the possibility that the resistance assembly is broken down can be greatly reduced, the volume of an insulation structure of the resistance assembly can be reduced, and the volume of the resistor is further reduced.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (10)
1. A high-voltage ultra-large capacity water-cooled resistor is characterized by comprising:
a resistor housing;
the insulating tubes are at least two and are arranged in parallel;
the resistance assembly sets up inside the resistance housing, the resistance assembly is provided with a plurality of water-cooling boards and a plurality of resistance unit, the water-cooling board with the resistance unit sets up in proper order in turn and wears to establish and fix on the insulating tube, be provided with the water-cooling passageway in the water-cooling board just parallelly connected setting between the water-cooling board, the resistance unit is provided with first insulation layer, two alloy resistance pieces and two second insulation layers, two the alloy resistance piece is located two the centre of second insulation layer, the first insulation layer is located two the centre of alloy resistance piece.
2. The high-voltage ultra-large capacity water-cooled resistor of claim 1, wherein: the number of the water-cooling plates is one more than that of the resistor units, and the outermost sides of the resistor components are the water-cooling plates.
3. The high-voltage ultra-large capacity water-cooled resistor of claim 1, wherein: the resistance unit is further provided with at least two insulating lantern rings, the insulating lantern ring is sleeved on the insulating tube, and the insulating lantern rings can be embedded into the first insulating layer and the alloy resistor sheets.
4. The high-voltage ultra-large capacity water-cooled resistor of claim 1, wherein: the resistance assembly is further provided with at least two first electrode connecting sheets, and two poles of each alloy resistance sheet are electrically connected with the two first electrode connecting sheets respectively.
5. The high-voltage ultra-large capacity water-cooled resistor of claim 4, wherein: two second electrode connecting pieces are arranged between the two alloy resistance pieces in the resistance unit, the two second electrode connecting pieces are respectively positioned at the two electrodes of the alloy resistance pieces, and the first electrode connecting piece is fixedly connected with the same electrode of one alloy resistance piece in the resistance unit.
6. The high-voltage ultra-large capacity water-cooled resistor of claim 4, wherein: the alloy resistor disc is characterized in that two electrode plates are further arranged, the first electrode connecting pieces are divided into two groups, one group of the first electrode connecting pieces is fixedly connected with one electrode plate, the other group of the first electrode connecting pieces is fixedly connected with the other electrode plate, and the two first electrode connecting pieces which are connected with the same alloy resistor disc are respectively connected with different electrode plates.
7. The high-voltage ultra-large capacity water-cooled resistor of claim 1, wherein: the water cooling channel is provided with a water inlet and a water outlet, the water inlet and the water outlet are respectively used for being connected with an external cooling water pipeline, and a temperature detection device is arranged at the water outlet.
8. The high-voltage ultra-large capacity water-cooled resistor of claim 7, wherein: the water inlet and the water outlet are respectively arranged at two ends of the water cooling plate.
9. The high-voltage ultra-large capacity water-cooled resistor of claim 7, wherein: the water cooling plate is also provided with two main water pipes and a plurality of water distribution pipes, wherein one main water pipe is respectively connected with the water inlets on the water cooling plates through the water distribution pipes; and the other main water pipe is respectively connected with the water outlets on the water cooling plates through the water distribution pipes.
10. The high-voltage ultra-large capacity water-cooled resistor of claim 1, wherein: the first insulating layer is mica, and the second insulating layer is polyimide.
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| CN202010959385.XA CN112086252A (en) | 2020-09-14 | 2020-09-14 | High-voltage ultra-large-capacity water-cooled resistor |
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| CN202010959385.XA CN112086252A (en) | 2020-09-14 | 2020-09-14 | High-voltage ultra-large-capacity water-cooled resistor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113192711A (en) * | 2021-04-08 | 2021-07-30 | 株洲中车奇宏散热技术有限公司 | Method for cooling resistor by adopting seawater and insulating water-cooled resistor |
| CN114334318A (en) * | 2021-12-03 | 2022-04-12 | 广东福德电子有限公司 | Resistor resistant to large current |
| CN114334314A (en) * | 2021-12-06 | 2022-04-12 | 广东福德电子有限公司 | Sandwich type resistor |
| CN115206610A (en) * | 2022-08-17 | 2022-10-18 | 深圳市永裕泰电子有限公司 | High-stability laminated NTC thermistor |
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| DE4225723A1 (en) * | 1992-08-04 | 1994-02-10 | Abb Patent Gmbh | Power resistance for liquid cooling |
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| CN210606831U (en) * | 2019-11-12 | 2020-05-22 | 西安神电电器有限公司 | Water-cooling resistor |
| CN212624985U (en) * | 2020-09-14 | 2021-02-26 | 广东意杰科技有限公司 | High-voltage ultra-large-capacity water-cooled resistor |
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| DE4225723A1 (en) * | 1992-08-04 | 1994-02-10 | Abb Patent Gmbh | Power resistance for liquid cooling |
| GB201003867D0 (en) * | 2010-03-09 | 2010-04-21 | Cressall Resistors Ltd | Liquid-cooled brake resistor for use in electric vehicles |
| CN204558173U (en) * | 2015-04-22 | 2015-08-12 | 西安神电电器有限公司 | A kind of water-cooled resistance of electricity separation |
| CN210606831U (en) * | 2019-11-12 | 2020-05-22 | 西安神电电器有限公司 | Water-cooling resistor |
| CN212624985U (en) * | 2020-09-14 | 2021-02-26 | 广东意杰科技有限公司 | High-voltage ultra-large-capacity water-cooled resistor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113192711A (en) * | 2021-04-08 | 2021-07-30 | 株洲中车奇宏散热技术有限公司 | Method for cooling resistor by adopting seawater and insulating water-cooled resistor |
| CN114334318A (en) * | 2021-12-03 | 2022-04-12 | 广东福德电子有限公司 | Resistor resistant to large current |
| CN114334314A (en) * | 2021-12-06 | 2022-04-12 | 广东福德电子有限公司 | Sandwich type resistor |
| CN115206610A (en) * | 2022-08-17 | 2022-10-18 | 深圳市永裕泰电子有限公司 | High-stability laminated NTC thermistor |
| CN115206610B (en) * | 2022-08-17 | 2024-05-07 | 深圳市永裕泰电子有限公司 | High-stability laminated NTC thermistor |
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