CN211577249U - Hall sensor's installation device and medium voltage inverter - Google Patents
Hall sensor's installation device and medium voltage inverter Download PDFInfo
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- CN211577249U CN211577249U CN201921654084.5U CN201921654084U CN211577249U CN 211577249 U CN211577249 U CN 211577249U CN 201921654084 U CN201921654084 U CN 201921654084U CN 211577249 U CN211577249 U CN 211577249U
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- hall sensor
- cable
- side plate
- bracket
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Abstract
A mounting device of a Hall sensor and a medium voltage inverter are provided, the mounting device of the Hall sensor is used for mounting the Hall sensor in the medium voltage inverter, the Hall sensor comprises a central hole allowing a cable to pass through the central hole, and the mounting device comprises: the first insulation side plate is positioned on one side of the Hall sensor and is installed on a cabinet body of the medium-voltage frequency converter; a cable connector mounted on the first insulating side plate to allow a cable to pass through the first insulating side plate and be fixed relative to the first insulating side plate by the cable connector; a bracket connected to the hall sensor to be mounted to the first insulating side plate; and a second insulation side plate located at the other side of the hall sensor and including a first half portion and a second half portion which can be respectively connected to the bracket, wherein the second insulation side plate is configured to be respectively provided with a first semicircular hole and a second semicircular hole which are used for receiving the cable and are concentric with the cable connector on the first half portion and the second half portion, so that the first semicircular hole and the second semicircular hole are aligned with each other to clamp the cable when the first half portion and the second half portion are assembled with the bracket.
Description
Technical Field
The utility model relates to a medium-voltage inverter technical field, specifically, the utility model relates to a hall sensor's installation device for install hall sensor in the medium-voltage inverter. The utility model discloses still relate to the medium voltage inverter including this hall sensor's installation device.
Background
In present medium voltage inverter, suitable electric clearance can't be guaranteed with hall sensor's inner wall to power module output cable, and medium voltage cable can direct contact hall sensor's inner wall, and under this condition, the electric field and the temperature rise of medium voltage cable can influence hall sensor's performance and life-span. Also, in some cases, the fixing hole of the cable is too small, but the terminal (crimp copper nose) of the cable is too large, which may cause the copper nose to be unable to pass through the fixing hole of the cable.
The design of the existing product can not ensure that the Hall sensor works under the best performance. For example, referring to the schematic diagrams of the prior art product design shown in fig. 1A to 1C, the mounting assembly of the hall sensor comprises a hall sensor and a mounting bracket, the output cable of the power module passes through the hall sensor, and the fixing points at the two ends of the cable are far away. Obviously, the medium voltage cable is in a free state in the hole of the hall sensor, can move freely in the hall sensor, and is likely to contact with the inner wall of the hall sensor. The electric field and temperature rise of the medium-voltage cable can have adverse effects on the service life of the hall sensor and the accuracy of current detection, and meanwhile, the aging of the cable can be accelerated by the partial discharge of the cable.
Therefore, there is a need in the art for a novel hall sensor mounting apparatus that can ensure that the hall sensor operates at the best performance, and also allow the copper nose to pass through the fixing hole and fix the cable.
SUMMERY OF THE UTILITY MODEL
To this end, in one aspect, the utility model provides a hall sensor's installation device for install hall sensor in the medium voltage inverter, hall sensor includes the centre bore that allows the cable to pass therethrough, installation device includes: the first insulation side plate is positioned on one side of the Hall sensor and is installed on a cabinet body of the medium-voltage frequency converter; a cable connector mounted on the first insulating side plate to allow a cable to pass through the first insulating side plate and be fixed relative to the first insulating side plate by the cable connector; a bracket connected to the hall sensor to mount the hall sensor to the first insulating side plate; and a second insulation side plate located at the other side of the hall sensor and including a first half portion and a second half portion which can be connected to the bracket, respectively, wherein the second insulation side plate is configured to be provided with a first semicircular hole and a second semicircular hole which are used for receiving the cable and are concentric with the cable connector, respectively, on the first half portion and the second half portion, so that the first semicircular hole and the second semicircular hole are aligned with each other to clamp the cable when the first half portion and the second half portion are assembled with the bracket.
According to a preferred embodiment, a protective strip of elastic material is provided in each semicircular hole for protecting the outer insulation sheath of the cable.
According to a preferred embodiment, the bracket comprises: the base plate is arranged transversely to the first insulating side plate and used for bearing the Hall sensor; a first mounting plate extending from the base plate in a direction parallel to the first insulating side plate; a second mounting plate extending from the base plate in a direction opposite to the first mounting plate and including a slot allowing passage of the cable.
According to a preferred embodiment, the base plate of the bracket may be fixedly connected with the base of the hall sensor by a first fastener.
According to a preferred embodiment, the first mounting plate of the bracket may be secured to the first insulating side plate by a second fastener.
According to a preferred embodiment, the second mounting plate of the bracket may be fixedly connected to the first and second halves of the second insulating side plate, respectively, by a third fastener.
According to a preferred embodiment, the elastic material comprises rubber.
On the other hand, the utility model provides a medium voltage inverter, it includes as before hall sensor's installation device.
The utility model provides a hall sensor's installation device can guarantee that hall sensor work is at best operating condition, ensures the precision that the electric current was listened, guarantees cable and hall sensor's maximum life simultaneously. Adopt above-mentioned neotype structural design, ensure that the minimum distance between power module output cable and the hall sensor inner wall is 7mm, guaranteed the electric clearance between hall sensor and the cable.
Drawings
The above and other features and advantages of the present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings, and the following description and drawings are given for illustrative purposes only, and do not limit the scope of the present invention in any way, wherein:
FIGS. 1A to 1C are schematic views of a prior art Hall sensor mounting apparatus showing three views, front, side and top, respectively;
fig. 2A is a schematic front view of a mounting device for a hall sensor according to a preferred embodiment of the present invention;
fig. 2B is a schematic test diagram of a mounting device for a hall sensor according to a preferred embodiment of the present invention;
fig. 2C is a schematic top view of a mounting arrangement for a hall sensor according to a preferred embodiment of the present invention;
fig. 3 is an exploded schematic view of a mounting arrangement for a hall sensor according to a preferred embodiment of the present invention;
fig. 4 is a schematic sectional view of a mounting device of a hall sensor according to a preferred embodiment of the present invention.
List of reference numerals
1 first insulating side plate
11. 12 mounting hole of first insulating side plate
2 cable joint
21. 22 first and second parts of a cable joint
3 Hall sensor
31 center hole of Hall sensor
Base of 32 Hall sensor
33 hall sensor's signal connection terminal
4 support
41 first mounting plate of support
42 second mounting plate of bracket
421 grooves of the support
43 holder base plate
44. 45, 46 first, second and third fasteners of bracket
5 second insulating side plate
51 first half of second insulating plate
511. 521 mounting holes of first and second halves
52 second half of the second insulating plate
53 round hole of second insulating side plate
531. 531 semi-circular holes of the first and second half parts
54 cable protective ring
541. 542 semicircular protective strip
6 medium voltage cable
7 cable connecting terminal
Detailed Description
The foregoing and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the embodiments with reference to the accompanying drawings. The following description contains various specific details to aid in this understanding, but these details should be construed as merely exemplary. Moreover, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.
Throughout the description and claims of this specification, the word "comprise", and variations such as "comprises" and "comprising", means "including but not limited to", and is not intended to exclude other components, integers or steps. It is to be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. In the present application, the expression "or" encompasses any and all combinations of the words listed together.
Although various elements of the present invention may be described using expressions such as "first" and "second," they are not intended to limit the respective elements. The above expressions are not intended to limit the order or importance of the corresponding elements. The above description is intended to distinguish one element from another, and "a first element" may be written as "a second element", and similarly "a second element" may be written as "a first element", without departing from the scope of the present invention. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In addition, the directional terms such as "upper", "lower", "left", "right", and the like mentioned herein are used only for showing relative positional relationships with respect to the drawings, and when the absolute position of the object to be described is changed, the relative positional relationships may be changed accordingly.
The following description is combined with fig. 1-4 to describe the utility model provides a hall sensor installation device for installing hall sensor in medium voltage inverter. The mounting device mainly comprises a first insulating side plate 1, a cable joint 2, a bracket 4 and a second insulating side plate 5. Referring to the exploded view of fig. 3, the cable connector 2, the first insulating side plate 1, the hall sensor 3 between the first insulating side plate and the bracket 4, and the second insulating side plate 5 are shown from left to right, respectively.
The hall sensor 3 includes a central hole 31 and a base 32 that allow the cable 6 to pass therethrough.
The first insulating side plate 1 is located at the left side of the hall sensor 3 and is installed on a cabinet of a medium voltage inverter (not shown in the figure). The first insulating side plate 1 has cable connector mounting holes 11 and bracket mounting holes 12 therebelow.
The cable connector 2 is mounted on the first insulating side plate 1, with reference to fig. 2 and the cross-sectional view of fig. 3, to allow the cable 6 to pass through the first insulating side plate 1 through the cable connector 2 and to be fixed with respect to the first insulating side plate 1. The cable joint 2 may be made up of two parts 21, 22 cooperating to be able to grip and hold the cable 6 while protecting the insulating sheath of the cable 6. The cable joint 2 may preferably be a watertight joint.
The bracket 4 is connected to the hall sensor 3 to mount the hall sensor 3 to the first insulating side plate 1. In the preferred embodiment shown in the drawings, the stent 4 may be a zig-zag stent as shown. The bracket 4 includes a base plate 43, a first mounting plate 41, and a second mounting plate 42. The base plate 43 is arranged transversely to the first insulating side plate 1, i.e. in the horizontal direction as shown, for carrying the hall sensor 3, the width of the base plate 43 preferably being greater than the width of the hall sensor 3. The base plate 43 of the bracket 4 can be fastened to the base 32 of the hall sensor 3 by means of a first fastening element 44. The first mounting plate 41 extends from the base plate 43 in a direction parallel to the first insulating side plate 1, i.e., in a vertically downward direction as shown. The first mounting plate 41 of the bracket 4 may be fixed to the first insulating side plate 1 by the second fastening member 45. The second mounting plate 42 extends from the base plate 43 in a direction opposite to the first mounting plate 41, i.e., in a vertically upward direction as shown. The second mounting plate 42 comprises a slot 421, which may be for example a U-shaped slot as shown, for giving way for the passage of the cable 6. The second mounting plate 42 of the bracket 4 may be fixedly coupled to the first and second halves of the second insulated side panel 5, respectively, by third fasteners 46. It will be appreciated by those skilled in the art that the first, second and third fasteners may take the form of conventional fastening screws, and may have other forms.
The second insulating side plate 5 is located on the right side of the hall sensor 3 as shown, and is also referred to as a right insulating plate 5, and includes a right insulating plate upper plate for supporting points and a right insulating plate lower plate for supporting points, i.e., a first half 51 and a second half 52, which can be attached to the bracket 4 through mounting holes and fastening connectors, respectively. The second insulating side plate 2 is configured such that a first semicircular hole 531 and a second semicircular hole 532 for receiving the cable 6 and concentric with the cable joint 2 are provided on the first half 51 and the second half 52, respectively, so that when the first and second halves are assembled with the bracket 4, the first and second semicircular holes are aligned with each other to form a circular hole 53 (refer to fig. 2A), and semicircular protective strips 541, 542 provided in each semicircular hole form a protective ring 54 so that the cable 6 is clamped between the first and second halves. The semicircular protective strips 541, 542 are made of an elastic material, which may be rubber, for example, for protecting the outer insulation of the cable.
Therefore, as shown in the sectional view of fig. 4, the cable connector on the left side and the cable protection ring on the right side are concentrically arranged, and the distance between the cable protection rubber ring 54 and the inner wall of the hall sensor 3 is ensured to achieve the design of minimum 7mm, so that the hall sensor can work in the best state, and the maximum service lives of the cable and the hall sensor are ensured.
The size at cable crimping copper nose 7 is a lot more than the external diameter of cable 6, under cable 6 can pass through cable guard circle 54, nevertheless under the unable condition through cable guard circle 54 of copper nose 7, adopts the utility model discloses an installation device structural design can adopt following mode installation hall sensor 3 in the medium voltage inverter to realize the improvement of power module output cable mounting process:
a cable joint 2 is arranged on the first insulation side plate 1;
a Hall sensor 3 is arranged on the Z-shaped bracket 4;
the second half part 52 of the second insulating side plate 5 and a semicircular elastic material protection strip 542 are arranged on the Z-shaped bracket 4;
the output medium-voltage cable 2 of the power module passes through the central hole 31 of the Hall sensor 3, and the cable joint 2 and the protective strip 542 are used as supporting fulcrums;
a first half part 51 of the second insulating side plate and a semicircular elastic material protection strip 541 are installed on the Z-shaped bracket 4;
the cable joint 2 is locked.
The utility model discloses still provide including the aforesaid be arranged in installing the hall sensor installation device's of hall sensor in the medium-voltage inverter.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention, which is defined by the appended claims. It will be appreciated by persons skilled in the art that variations and modifications may be made to the various embodiments described herein without departing from the scope of the invention as defined by the appended claims. Moreover, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.
Finally, it is also to be understood that certain features of the embodiments may not be necessary to solve a particular technical problem, and thus may be absent or omitted without affecting the solution of the technical problem or the formation of a technical solution; furthermore, the features, elements, and/or functions of one embodiment may be combined, coupled, or coordinated with the features, elements, and/or functions of one or more other embodiments as appropriate, unless the combination, coupling, or coordination is clearly not practical.
Claims (8)
1. A mounting apparatus of a hall sensor for mounting the hall sensor in a medium voltage inverter, the hall sensor including a center hole for allowing a cable to pass therethrough, the mounting apparatus comprising:
the first insulation side plate is positioned on one side of the Hall sensor and is installed on a cabinet body of the medium-voltage frequency converter;
a cable connector mounted on the first insulating side plate to allow a cable to pass through the first insulating side plate and be fixed relative to the first insulating side plate by the cable connector;
a bracket connected to the hall sensor to mount the hall sensor to the first insulating side plate;
a second insulating side plate located at the other side of the Hall sensor and including a first half part and a second half part capable of being connected to the bracket, respectively,
wherein the second insulating side plate is configured such that a first semicircular hole and a second semicircular hole for receiving the cable and concentric with the cable connector are provided on the first half and the second half, respectively, such that the first and second semicircular holes are aligned with each other to clamp the cable when the first and second halves are assembled with the bracket.
2. The hall sensor mounting apparatus of claim 1 wherein each semicircular hole is provided therein with a protective strip of an elastic material for protecting the outer insulation sheath of the cable.
3. The hall sensor mounting apparatus of claim 1 wherein the bracket comprises:
the base plate is arranged transversely to the first insulating side plate and used for bearing the Hall sensor;
a first mounting plate extending from the base plate in a direction parallel to the first insulating side plate;
a second mounting plate extending from the base plate in a direction opposite to the first mounting plate and including a slot allowing passage of the cable.
4. The Hall sensor mounting apparatus of claim 3, wherein the base plate of the bracket is fastened to the base of the Hall sensor by a first fastener.
5. The hall sensor mounting apparatus of claim 3 wherein the first mounting plate of the bracket is secured to the first insulating side plate by a second fastener.
6. The hall sensor mounting apparatus of claim 3 wherein the second mounting plate of the bracket is fixedly attached to the first and second halves of the second insulating side plate, respectively, by a third fastener.
7. The hall sensor mounting arrangement of claim 2 wherein the resilient material comprises rubber.
8. A medium voltage frequency converter, characterized in that it comprises a mounting device of a hall sensor according to any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921654084.5U CN211577249U (en) | 2019-09-30 | 2019-09-30 | Hall sensor's installation device and medium voltage inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921654084.5U CN211577249U (en) | 2019-09-30 | 2019-09-30 | Hall sensor's installation device and medium voltage inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211577249U true CN211577249U (en) | 2020-09-25 |
Family
ID=72528749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921654084.5U Active CN211577249U (en) | 2019-09-30 | 2019-09-30 | Hall sensor's installation device and medium voltage inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211577249U (en) |
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2019
- 2019-09-30 CN CN201921654084.5U patent/CN211577249U/en active Active
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