CN109194240B - Combined device for frequency converter - Google Patents
Combined device for frequency converter Download PDFInfo
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- CN109194240B CN109194240B CN201811104599.8A CN201811104599A CN109194240B CN 109194240 B CN109194240 B CN 109194240B CN 201811104599 A CN201811104599 A CN 201811104599A CN 109194240 B CN109194240 B CN 109194240B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P27/00—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage
- H02P27/04—Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/2089—Modifications to facilitate cooling, ventilating, or heating for power electronics, e.g. for inverters for controlling motor
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- Power Engineering (AREA)
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Abstract
The invention discloses a combination device for a frequency converter, which comprises an external equipment side plate, wherein first connecting blocks which are symmetrically distributed are arranged on the external equipment side plate, third connecting blocks are arranged on the first connecting blocks, elastic clamping blocks are arranged on the third connecting blocks, frame-shaped supports are arranged on the third connecting blocks, each frame-shaped support comprises a first support which is symmetrically distributed and a second support which is symmetrically distributed, sliding grooves are arranged on the opposite sides of the second supports which are symmetrically distributed, sliding slide rails are arranged in the sliding grooves in a sliding mode, and at least two second slide blocks are arranged on the first slide rails and the second slide rails in a sliding mode. The frequency converter combined device is suitable for the installation of different frequency converters, ensures the normal updating of the frequency converter, and does not influence the attractiveness of equipment and the sealing performance of the equipment; the combined device has the advantage of convenience in disassembly, and a first connecting block and a second connecting block are arranged between the frequency converter and the mechanical equipment, so that the heat dissipation performance of the mechanical equipment and the frequency converter is improved.
Description
Technical Field
The invention relates to a combined device, in particular to a combined device for a frequency converter.
Background
The frequency converter is one of the main electrical devices in the mechanical device, and provides the required power supply voltage according to the actual need of the motor, so as to achieve the purposes of energy saving and speed regulation. Along with the continuous improvement of the industrial automation degree, the frequency converter is also continuously updated, in order to ensure that the mechanical equipment can better run, the frequency converter is also updated in the mechanical equipment, the installation size of the frequency converter is changed along with the updating of the frequency converter, and the combination device between the frequency converter and the mechanical equipment is also changed along with the updating of the frequency converter; the connection between the frequency converter and the mechanical equipment usually adopts a suspension type and a screw connection mode, the suspension type connection directly suspends the frequency converter on the surface of the mechanical equipment, and the suspension type has the problem of difficult heat dissipation; through the mode of screw rod connection, when the converter updates, need set up the connecting hole again on mechanical equipment, influence the aesthetic property of equipment, and the leakproofness of equipment.
Disclosure of Invention
The invention aims to provide a combined device for a frequency converter, which is characterized in that when the combined device is used, the frequency converter is connected with a second sliding block through a screw rod, the second sliding block slides on a first sliding rail and a second sliding rail, the sliding rails slide in sliding grooves, the distance between connecting threaded holes is adjusted, the combined device is suitable for installation of different frequency converters, and normal updating of the frequency converter is ensured without influencing the attractiveness of equipment and the sealing performance of the equipment.
The extrusion touches the movable plate, elasticity fixture block extrusion elastic component, aim at the triangle-shaped through hole with the triangle-shaped fixture block, relieve the extrusion and touch the movable plate, elasticity fixture block is under the effect of elastic component, make to slide the triangle-shaped fixture block in the triangle-shaped through hole, first elastic sheet and second elastic sheet contactless this moment, through twisting the regulating part, adjust the turbine and adjust the meshing of scroll bar, adjust the first elastic sheet of scroll bar extrusion, through first fastener and second fastener block, with third connecting block on first connecting block, the advantage that has convenient to detach, there are first connecting block and second connecting block between converter and the mechanical equipment, make converter and mechanical equipment not direct contact, the heat dispersion of mechanical equipment and converter has been improved.
The purpose of the invention can be realized by the following technical scheme:
the utility model provides a composite set for converter, includes external equipment curb plate, be equipped with the first connecting block of symmetric distribution on the external equipment curb plate, be equipped with the first fixed block of symmetric distribution on the first connecting block.
The first fixing block is provided with a triangular through hole, one side of the first fixing block is provided with an adjusting hole, and the adjusting hole and the triangular through hole are vertically distributed.
The two sides of the first connecting block are provided with second connecting blocks, one side of each second connecting block is provided with a first elastic sheet, the first elastic sheets are located in the triangular through holes, and the first elastic sheets are provided with first clamping pieces.
The adjusting device is characterized in that an adjusting piece is arranged in the adjusting hole and comprises a twisting block, an adjusting rod is arranged on the twisting block and is a threaded rod, one end of the adjusting rod is fixedly connected with the twisting block, and an adjusting turbine is arranged at the other end of the adjusting rod.
The first connecting block is provided with a third connecting block, the third connecting block is provided with a first sliding square groove and a second sliding square groove which are symmetrically distributed, and a first connecting groove is arranged between the first sliding square groove and the second sliding square groove.
One side of the second sliding square groove is provided with a second connecting groove, the second sliding square groove is communicated with the outside through the second connecting groove, and the bottom of the second sliding square groove is provided with a first elastic piece connecting block.
And an elastic clamping block is arranged on the third connecting block, the elastic clamping block comprises a touch sheet, the touch sheet is positioned in the first sliding square groove, the touch sheet is used for controlling the elastic clamping block to move in the first sliding square groove, a first sliding block is arranged on the touch sheet, the first sliding block is positioned in the first connecting groove to slide, and the first sliding block is positioned at one end of the touch sheet.
And a second sliding block is arranged on the first sliding block, the second sliding block is positioned in the second sliding square groove to slide, and a second elastic piece connecting block is arranged at one end of the second sliding block.
And an elastic piece is arranged between the first elastic piece connecting block and the second elastic piece connecting block, one end of the elastic piece is fixedly connected with the first elastic piece connecting block, and the other end of the elastic piece is fixedly connected with the second elastic piece connecting block.
And a third sliding block is arranged on the second sliding block and is positioned in the second connecting groove to slide.
The third sliding block is provided with a third sliding block, the third sliding block is provided with a triangular clamping block, the triangular clamping block is provided with a second square hole, a second elastic sheet is arranged in the second square hole, and one end of the second elastic sheet is provided with a second clamping piece.
The third connecting block is provided with a frame-shaped support, the frame-shaped support comprises a first support and a second support, the first support and the second support are symmetrically distributed, a third square hole is formed in the second support, a screw rod is arranged in the screw rod through hole, the screw rod penetrates through the screw rod through hole and the third square hole to be connected through a nut, and the frame-shaped support is fixed on the third connecting block.
The opposite side of the second support of symmetric distribution is equipped with the spout, is equipped with first slide rail between the second support, is equipped with the third square groove that slides on the first slide rail, is equipped with fourth quad slit and fifth quad slit on the first slide rail, and fourth quad slit and fifth quad slit vertical distribution, third slide the quad slit and pass through fourth quad slit and fifth quad slit and external UNICOM.
The sliding device is characterized in that two ends of the second sliding rail are provided with limiting connecting blocks, sliding block connecting blocks are arranged on the limiting connecting blocks, first sliding blocks are arranged on the sliding block connecting blocks, and the sliding rails slide in the sliding grooves through the first sliding blocks.
The first slide rail and the second slide rail are provided with at least two second slide blocks in a sliding mode, each second slide block comprises a slide block main body, the slide block main bodies are located in the third sliding square grooves, the slide blocks are symmetrically distributed on the slide block main bodies, the slide blocks are located in the fifth square holes, and the slide block main bodies are provided with connecting threaded holes.
Furthermore, one side of the triangular through hole is provided with a first square hole.
Furthermore, the first elastic sheet is provided with an adjusting scroll rod.
Furthermore, the adjusting rod is matched with the adjusting hole, the adjusting turbine is meshed with the adjusting worm rod, and the deformation of the first elastic sheet is adjusted by screwing the screwing block.
Furthermore, the first connecting groove is communicated with the first sliding square groove and the second sliding square groove.
Furthermore, counter bores which are symmetrically distributed are formed in the third connecting block, and screw through holes are formed in the counter bores.
The invention has the beneficial effects that:
1. the frequency converter combined device is suitable for the installation of different frequency converters, ensures the normal updating of the frequency converter, and does not influence the attractiveness of equipment and the sealing performance of the equipment;
2. the combined device of the frequency converter has the advantage of convenience in disassembly, and the first connecting block and the second connecting block are arranged between the frequency converter and mechanical equipment, so that the heat dissipation performance of the mechanical equipment and the frequency converter is improved.
Drawings
The invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic view of the structure of the combined apparatus of the present invention;
FIG. 2 is a schematic view of a portion of the assembly of the present invention;
FIG. 3 is a schematic diagram of a second connecting block according to the present invention;
FIG. 4 is a schematic view of the structure of the adjusting member of the present invention;
FIG. 5 is a schematic diagram of a third connecting block according to the present invention;
FIG. 6 is a schematic view of an elastic latch according to the present invention;
FIG. 7 is a cross-sectional view of the resilient latch of the present invention;
FIG. 8 is a schematic view of the frame support structure of the present invention;
FIG. 9 is a cross-sectional view of a frame support of the present invention;
FIG. 10 is a schematic view of the sliding track structure of the present invention;
FIG. 11 is a schematic view of a second slider configuration according to the present invention.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
The utility model provides a composite set for converter, includes external equipment curb plate 1, as shown in fig. 1, fig. 2, is equipped with first connecting block 2 of symmetric distribution on the external equipment curb plate 1, is equipped with first fixed block 21 of symmetric distribution on the first connecting block 2.
The first fixing block 21 is provided with a triangular through hole 22, one side of the first fixing block 21 is provided with an adjusting hole 23, the adjusting hole 23 is a threaded hole, the adjusting hole 23 and the triangular through hole 22 are vertically distributed, and one side of the triangular through hole 22 is provided with a first square hole 24.
The two sides of the first connecting block 2 are provided with the second connecting block 3, as shown in fig. 1 and 3, one side of the second connecting block 3 is provided with a first elastic sheet 31, the first elastic sheet 31 is positioned in the triangular through hole 22, the first elastic sheet 31 is provided with an adjusting worm 32, and the first elastic sheet 31 is provided with a first clamping piece 33.
The adjusting member 4 is disposed in the adjusting hole 23, as shown in fig. 1 and 4, the adjusting member 4 includes a screwing block 41, an adjusting rod 42 is disposed on the screwing block 41, the adjusting rod 42 is a threaded rod, one end of the adjusting rod 42 is fastened to the screwing block 41, and the other end is disposed with an adjusting turbine 43.
The adjusting rod 42 is engaged with the adjusting hole 23, the adjusting worm wheel 43 is engaged with the adjusting worm 32, and the deformation of the first elastic sheet 31 is adjusted by screwing the screwing block 41.
The first connecting block 2 is provided with a third connecting block 5, as shown in fig. 1 and 5, the third connecting block 5 is provided with a first sliding square groove 51 and a second sliding square groove 52 which are symmetrically distributed, a first connecting groove 53 is provided between the first sliding square groove 51 and the second sliding square groove 52, and the first connecting groove 53 is communicated with the first sliding square groove 51 and the second sliding square groove 52.
One side of the second sliding square groove 52 is provided with a second connecting groove 54, the second sliding square groove 52 is communicated with the outside through the second connecting groove 54, and the bottom of the second sliding square groove 52 is provided with a first elastic member connecting block 55.
The third connecting block 5 is provided with counterbores 56 which are symmetrically distributed, and screw through holes 57 are arranged in the counterbores 56.
The third connecting block 5 is provided with an elastic clamping block 6, as shown in fig. 1, 6 and 7, the elastic clamping block 6 includes a touch piece 61, the touch piece 61 is located in the first sliding square groove 51, the touch piece 61 controls the movement of the elastic clamping block 6 in the first sliding square groove 51, the touch piece 61 is provided with a first sliding block 62, the first sliding block 62 is located in the first connecting groove 53 and slides, and the first sliding block 62 is located at one end of the touch piece 61.
The first sliding block 62 is provided with a second sliding block 63, the second sliding block 63 is located in the second sliding square groove 52 to slide, and one end of the second sliding block 63 is provided with a second elastic element connecting block 69.
An elastic piece is arranged between the first elastic piece connecting block 55 and the second elastic piece connecting block 69, one end of the elastic piece is fixedly connected with the first elastic piece connecting block 55, and the other end of the elastic piece is fixedly connected with the second elastic piece connecting block 69.
The second sliding block 63 is provided with a third sliding block 64, and the third sliding block 64 is located in the second connecting groove 54 to slide.
The third sliding block 64 is provided with a fourth sliding block 65, the fourth sliding block 65 is provided with a triangular clamping block 66, the triangular clamping block 66 is provided with a second square hole 67, the second square hole 67 is internally provided with a second elastic sheet 68, and one end of the second elastic sheet 68 is provided with a second clamping member 681.
The frame-shaped support 7 is arranged on the third connecting block 5, as shown in fig. 8 and 9, the frame-shaped support 7 includes a first support 71 and a second support 72, which are symmetrically distributed, the first support 71 and the second support 72 are vertically distributed, the second support 72 is provided with a third square hole 73, a screw rod is arranged in the screw rod through hole 57, the screw rod passes through the screw rod through hole 57 and is connected with the third square hole 73 through a nut, and the frame-shaped support 7 is fixed on the third connecting block 5.
The opposite sides of the second supports 72 which are symmetrically distributed are provided with sliding grooves 74, first sliding rails 75 are arranged between the second supports 72, third sliding square grooves 751 are arranged on the first sliding rails 75, fourth square holes 752 and fifth square holes 753 are arranged on the first sliding rails 75, the fourth square holes 752 and the fifth square holes 753 are vertically distributed, and the third sliding square grooves 751 are communicated with the outside through the fourth square holes 752 and the fifth square holes 753.
The sliding slide rail 8 is slidably disposed in the sliding groove 74, as shown in fig. 1 and 10, the sliding slide rail 8 includes a second slide rail 81, the second slide rail 81 has the same structure as the first slide rail 75, and the difference lies in that two ends of the second slide rail 81 are provided with a limiting connection block 82, the limiting connection block 82 is provided with a slider connection block 83, the slider connection block 83 is provided with a first slider 84, and the sliding slide rail 8 slides in the sliding groove 74 through the first slider 84.
At least two second sliding blocks 9 are arranged on the first sliding rail 75 and the second sliding rail 81 in a sliding mode, as shown in fig. 11, each second sliding block 9 comprises a sliding block main body 91, the sliding block main bodies 91 are located in the third sliding square grooves 751, sliding sheets 92 which are symmetrically distributed are arranged on the sliding block main bodies 91, the sliding sheets 92 are located in the fifth square holes 753, and connecting threaded holes 93 are formed in the sliding block main bodies 91.
During the use, connect converter and second slider 9 through the screw rod, second slider 9 slides on first slide rail 75 and second slide rail 81, slide rail 8 slides in spout 74, adjust the interval between the connection screw hole 93, adapt to the installation of different converters, extrusion touch piece 61, elasticity fixture block 6 extrudees the elastic component, aim at triangle-shaped fixture block 66 triangle-shaped through hole 22, relieve extrusion touch piece 61, elasticity fixture block 6 is under the effect of elastic component, make triangle-shaped fixture block 66 slide in triangle-shaped through hole 22, first elastic piece 31 and second elastic piece 68 contactless this moment, through twisting adjusting part 4, adjust the meshing of turbine 43 and regulation scroll bar 32, regulation scroll bar 32 extrudes first elastic piece 31, through first fastener 33 and second 681 block, block third connecting block 5 block on first connecting block 2.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed.
Claims (6)
1. A combination device for a frequency converter comprises an external equipment side plate (1), and is characterized in that first connecting blocks (2) which are symmetrically distributed are arranged on the external equipment side plate (1), and first fixed blocks (21) which are symmetrically distributed are arranged on the first connecting blocks (2);
a triangular through hole (22) is formed in the first fixing block (21), an adjusting hole (23) is formed in one side of the first fixing block (21), and the adjusting hole (23) and the triangular through hole (22) are vertically distributed;
the two sides of the first connecting block (2) are provided with second connecting blocks (3), one side of each second connecting block (3) is provided with a first elastic sheet (31), each first elastic sheet (31) is positioned in the triangular through hole (22), and each first elastic sheet (31) is provided with a first clamping piece (33);
an adjusting piece (4) is arranged in the adjusting hole (23), the adjusting piece (4) comprises a screwing block (41), an adjusting rod (42) is arranged on the screwing block (41), the adjusting rod (42) is a threaded rod, one end of the adjusting rod (42) is tightly connected with the screwing block (41), and an adjusting turbine (43) is arranged at the other end of the adjusting rod;
a third connecting block (5) is arranged on the first connecting block (2), a first sliding square groove (51) and a second sliding square groove (52) which are symmetrically distributed are respectively arranged on the third connecting block (5), and a first connecting groove (53) is arranged between the first sliding square groove (51) and the second sliding square groove (52);
a second connecting groove (54) is formed in one side of the second sliding square groove (52), the second sliding square groove (52) is communicated with the outside through the second connecting groove (54), and a first elastic piece connecting block (55) is arranged at the bottom of the second sliding square groove (52);
an elastic clamping block (6) is arranged on the third connecting block (5), the elastic clamping block (6) comprises a touch sheet (61), the touch sheet (61) is positioned in the first sliding square groove (51), the touch sheet (61) is touched to control the elastic clamping block (6) to move in the first sliding square groove (51), a first sliding block (62) is arranged on the touch sheet (61), the first sliding block (62) is positioned in the first connecting groove (53) to slide, and the first sliding block (62) is positioned at one end of the touch sheet (61);
a second sliding block (63) is arranged on the first sliding block (62), the second sliding block (63) is positioned in the second sliding square groove (52) to slide, and a second elastic piece connecting block (69) is arranged at one end of the second sliding block (63);
an elastic piece is arranged between the first elastic piece connecting block (55) and the second elastic piece connecting block (69), one end of the elastic piece is fixedly connected with the first elastic piece connecting block (55), and the other end of the elastic piece is fixedly connected with the second elastic piece connecting block (69);
a third sliding block (64) is arranged on the second sliding block (63), and the third sliding block (64) is positioned in the second connecting groove (54) to slide;
a fourth sliding block (65) is arranged on the third sliding block (64), a triangular clamping block (66) is arranged on the fourth sliding block (65), a second square hole (67) is formed in the triangular clamping block (66), a second elastic sheet (68) is arranged in the second square hole (67), and a second clamping piece (681) is arranged at one end of the second elastic sheet (68);
the third connecting block (5) is provided with a frame-shaped support (7), the frame-shaped support (7) comprises a first support (71) and a second support (72), the first support (71) and the second support (72) are symmetrically distributed, the first support (71) and the second support (72) are vertically distributed, the second support (72) is provided with a third square hole (73), a screw rod is arranged in the screw rod through hole (57), the screw rod penetrates through the screw rod through hole (57) and is connected with the third square hole (73) through a nut, and the frame-shaped support (7) is fixed on the third connecting block (5);
the opposite sides of the symmetrically-distributed second supports (72) are provided with sliding grooves (74), first sliding rails (75) are arranged between the second supports (72), third sliding square grooves (751) are arranged on the first sliding rails (75), fourth square holes (752) and fifth square holes (753) are arranged on the first sliding rails (75), the fourth square holes (752) and the fifth square holes (753) are vertically distributed, and the third sliding square grooves (751) are communicated with the outside through the fourth square holes (752) and the fifth square holes (753);
the sliding device is characterized in that two ends of the second sliding rail (81) are provided with limiting connecting blocks (82), the limiting connecting blocks (82) are provided with sliding block connecting blocks (83), the sliding block connecting blocks (83) are provided with first sliding blocks (84), and the sliding rail (8) slides in the sliding groove (74) through the first sliding blocks (84);
first slide rail (75) and second slide rail (81) go up the slip and are equipped with two at least second slider (9), and second slider (9) are equipped with symmetric distribution's slider (92) including slider main part (91), and slider main part (91) are located third slip quad slit (751), are equipped with on slider main part (91), and slider (92) are located fifth quad slit (753), are equipped with connecting screw hole (93) on slider main part (91).
2. Combination for a frequency converter according to claim 1, characterized in that one side of the triangular through-going hole (22) is provided with a first square hole (24).
3. A combination unit for a frequency converter according to claim 1, characterized in that the first elastic sheet (31) is provided with a regulating scroll (32).
4. Combination for a frequency converter according to claim 1, characterized in that the adjustment rod (42) cooperates with the adjustment hole (23), the adjustment worm wheel (43) engages with the adjustment worm (32), and the magnitude of the deformation of the first elastic strip (31) is adjusted by screwing the screwing block (41).
5. A combination for a frequency converter according to claim 1, characterized in that the first connection slot (53) communicates with the first sliding square slot (51) and the second sliding square slot (52).
6. A combination according to claim 1, wherein the third connecting block (5) is provided with symmetrically distributed counter bores (56), and screw through holes (57) are provided in the counter bores (56).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811104599.8A CN109194240B (en) | 2018-09-21 | 2018-09-21 | Combined device for frequency converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811104599.8A CN109194240B (en) | 2018-09-21 | 2018-09-21 | Combined device for frequency converter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109194240A CN109194240A (en) | 2019-01-11 |
| CN109194240B true CN109194240B (en) | 2020-02-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811104599.8A Active CN109194240B (en) | 2018-09-21 | 2018-09-21 | Combined device for frequency converter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112737285B (en) * | 2020-12-30 | 2022-02-01 | 巢湖市金辉自控设备有限公司 | Protection device suitable for not unidimensional converter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3143174C2 (en) * | 1981-10-30 | 1983-09-22 | Siemens AG, 1000 Berlin und 8000 München | Clamping device for contacting electrical contact points on circuit boards |
| CN102006757B (en) * | 2010-10-22 | 2012-10-03 | 华为技术有限公司 | Installation bracket |
| CN202587707U (en) * | 2012-04-06 | 2012-12-05 | 北京唯瑞新源科技有限公司 | Professional display splicing unit module |
| CN203827163U (en) * | 2014-05-21 | 2014-09-10 | 浙江人民电器有限公司 | Support of adjustable frequency converter |
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