CN212518417U

CN212518417U - Intelligent capacitor

Info

Publication number: CN212518417U
Application number: CN202021847628.2U
Authority: CN
Inventors: 陶显升; 金鑫; 梅耿耿
Original assignee: Delixi Electric Co Ltd
Current assignee: Delixi Electric Co Ltd
Priority date: 2020-08-28
Filing date: 2020-08-28
Publication date: 2021-02-09
Anticipated expiration: 2030-08-28

Abstract

The invention provides an intelligent capacitor, which belongs to the technical field of low-voltage electric appliances and comprises a main body, a cover, a circuit board, a micro-end switch, a supporting piece and other parts, wherein the circuit board, the micro-end switch, the supporting piece and the other parts are arranged in a closed space formed by combining the main body and the cover, a binding post and a supporting column are arranged on the upper surface of the main body, the supporting piece is sleeved on the supporting column, a mounting hole is formed in the supporting piece, and the circuit board is. According to the invention, the number of parts and corresponding installation relation are saved by simplifying the structure and optimizing the layout, so that the required installation steps are greatly reduced, and the difficulty of installing the structure is reduced; secondly, the assembly structure of each part to be assembled is differentiated, the assembly relation of each part is unique, confusion in the installation process is effectively avoided, so that 'fool assembly' is realized, and the method is suitable for assembly by novices.

Description

Intelligent capacitor

Technical Field

The invention relates to the technical field of low-voltage electric appliances, in particular to an intelligent capacitor with a novel mounting structure.

Background

The intelligent capacitor integrates advanced technologies such as modern measurement and control, power electronics, network communication, automatic control and the like, changes the backward controller technology of the traditional reactive compensation device and the backward switching technology of a mechanical contactor or a mechatronic switch for switching the capacitor, and changes the bulky and heavy structural mode of the traditional reactive compensation device, so that the low-voltage reactive compensation device has a better compensation effect.

The intelligent capacitor is divided into an upper part and a lower part according to the structural characteristics, devices such as a capacitor and a reactor are generally arranged at the lower part, and related circuit control structures such as communication, temperature detection and control and controller devices such as a micro-break switch are generally arranged at the upper part.

In the control structure of the upper part of the existing intelligent capacitor, the following problems caused by various parts and scattered installation positions exist: firstly, the mounting steps are multiple, the required space is large, the assembly difficulty is very high, unskilled workers are difficult to operate, the required assembly time is long, and the production efficiency is low; secondly, the internal layout is disordered and all parts are irregularly distributed in the space, so that the use safety is affected due to insufficient electrical clearance and creepage distance.

Based on this, the present application is proposed.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides the intelligent capacitor with the mounting structure, and solves the problems that the mounting structure of the intelligent capacitor, particularly the upper part of the intelligent capacitor in the prior art is complex and inconvenient to produce and assemble, so that the intelligent capacitor is convenient to mount, easy to mount by a novice, low in assembly difficulty and high in assembly efficiency.

In order to achieve the above purpose, the intelligent capacitor of the invention has the following structure: comprises that

A main body, wherein a capacitor is arranged in the main body, and the top of the main body is closed;

the supporting columns are arranged perpendicular to the top surface of the main body and are arranged on two sides of the main body in pairs;

the binding post is arranged at the top of the main body, and the bottom of the binding post is communicated with the inside of the main body;

the supporting pieces are in inserted fit with the paired supporting columns;

the circuit board is matched with the top of the main body in shape, corresponding circuits for control, communication and temperature detection are integrated on the circuit board, and the circuit board is detachably fixed on the support piece through a connecting piece;

the fixed guide rail is arranged on the surface of the circuit board and is detachably fixed on the supporting piece together with the circuit board;

the micro-break switch is clamped on the fixed guide rail;

and the cover is positioned above the main body and matched with the main body to form a closed space for covering the circuit board, the micro-break switch and the supporting piece.

In the structure, the support columns are connected through the support pieces, so that a stable and reliable structure is formed, the support strength of mounting and connecting is improved, the support columns are isolated from the circuit board, the support pieces are fixedly mounted with the circuit board, and the convenience of positioning is improved. In addition, the structure intensively installs components such as control, communication, temperature detection, micro-breaking switches and the like on the circuit board, so that a plurality of parts on the upper part of the intelligent capacitor are concentrated on the circuit board, the structure is simplified, and overlarge space occupation caused by over dispersion of related circuits or corresponding parts is avoided.

Moreover, a fixed guide rail is provided for the installation of the micro-break switch in the structure, and the micro-break switch is installed in a clamping mode, so that the installation convenience is further improved.

In conclusion, through the simplified installation design of the structures, the intelligent capacitor installation structure, particularly the installation structure at the upper part of the intelligent capacitor, is greatly simplified, has a simplified structure and reasonable layout, is convenient to install, and is more suitable for installation operation by a novice or a beginner.

In order to simplify the structure, the invention further provides the following steps: the pillar quantity is 4, and wherein 2 pillars constitute the first one end of locating the length direction of main part, and remaining 2 pillars are the second and organize the other end of locating the length direction of main part.

The structure controls the number of connection points required when the circuit board is connected with the support columns by limiting the number of the support columns, so that the number of parts and the number of the connection points are reduced, and the structure is simplified. Meanwhile, the matching relation of every two matched supporting columns in pairs and the structural design of the two sides of the main body are respectively arranged, so that the firmness and the stability of the supporting structure are also ensured under the condition of simplifying the structure.

The invention further provides the following: the set of 2 struts is arranged along the width direction of the main body.

The structure can reduce the bad occupation of the top space, optimize the space layout, reserve enough space for wiring and heat dissipation, and simultaneously, ensure that the supporting piece keeps enough distance with the wiring terminal and part of electric elements in the circuit board, and ensure the circuit safety on the circuit and the wiring terminal.

The invention further provides the following: the first group is arranged near one end of the main body, and the second group is arranged at an interval with the other end of the main body.

Because the product depth (that is, the length of the main body) of the intelligent capacitor is large, if only the supporting structures are arranged on the two sides of the main body, the middle area of the circuit board is easy to bend downwards under the action of gravity of the integrated circuit element on the circuit board, so that the distance between the wiring terminal and the circuit board is too short, the electric gap and the creepage distance can not meet the production standard, and the use safety of the capacitor has hidden troubles. Therefore, in the conventional solution, the support column and the supporting member are also disposed in the middle region of the circuit board, but although the stability of the circuit board can be enhanced, the creepage distance is reduced because the distance between the circuit board and the terminal is shortened due to the support column. Secondly, this mode inevitably leads to the part on main part upper portion to increase, the structure is complicated, and the space between the upper portion of main part and the circuit board also is extrudeed, is taken up or is cut apart, has both increased the cost, also is not convenient for carry out operations such as assembly, debugging of wiring in the space between main part top and the circuit board, and the practicality is poor.

To this end, the above structure provides the second set of struts on an area near the middle of the body rather than at the ends. On one hand, the second group can share the gravity of the middle area of the circuit board while supporting the end part of the circuit board, and the middle area of the circuit board is prevented from bending downwards, so that the circuit board is supported by the least parts, the structure is greatly simplified, and the production cost is correspondingly reduced. On the other hand, the second group of support columns and the first group of support columns are far away from each other, and a large amount of space exists between the second group of support columns and the first group of support columns, so that the distance between the second group of support columns and the binding posts on the main body meets the electric clearance and creepage distance required by the micro-disconnecting switch, and the use safety is ensured.

The invention further provides the following: the interval should satisfy the electric clearance between little disconnect-switch and the main part, and this clearance makes the second group keep away from the middle part region of main part as far as possible and be close to in the tip, reserves sufficient space for the middle part region of main part to satisfy demands such as wiring operation, heat dissipation, electric clearance and creepage distance, kill many birds with one stone. At the same time, the proximity of the micro disconnect to the end of the body can be assured for ease of operation of the micro disconnect during the next feature.

In order to reduce the gravity action on the circuit board and further prevent the part which is not contacted with the supporting piece from bending downwards under the action of force, the invention is further provided with the following components: the fixed guide rail is arranged on the second group.

The invention further provides the following: the supporting piece is arch bridge-shaped, the two sides of the bottom of the supporting piece are provided with openings which are matched with the supporting columns in an inserted connection or a sleeved connection, and the top of the supporting piece is provided with a first mounting hole.

Above-mentioned structure is through designing support piece for stable in structure, the better arched bridge shape of supporting role, when being convenient for install, has also effectively guaranteed that support piece possesses sufficient support strength and supports the circuit board.

In order to meet the design requirements of electrical clearance and creepage distance, the invention is further provided with the following components: the top of support piece is equipped with the boss, first mounting hole is located in the boss.

The supporting height of the supporting piece is raised through the bosses so as to meet the production requirement; meanwhile, the boss structure is beneficial to quick positioning when the circuit board is matched with the supporting piece in the installation process of the circuit board, and is beneficial to reducing the installation difficulty. In addition, the boss structure has enough contact surface to contact with the circuit board, so that the excessive pressure at the contact position of the circuit board and the boss can be avoided, and the force applied by the circuit board can be quickly dispersed.

The invention further provides the following: in the width direction of the main body, a second mounting hole is formed in the side wall of the supporting piece, and the cover is detachably and fixedly connected to the second mounting hole through a connecting piece.

The above structure functions as follows: firstly, reducing the open holes on the main body and keeping the integrity of the main body as much as possible; aligning the cover with the surface of the main body to form an intelligent capacitor with a smooth and integrated appearance, and improving the overall sealing performance of the intelligent capacitor; and thirdly, the volume of the cover can be reduced, and materials are saved.

The invention further provides the following: the connecting piece is the screw of unified size.

The invention has the following beneficial effects:

firstly, the invention saves the number of parts and corresponding installation relation by simplifying the structure and optimizing the layout, thereby greatly reducing the required installation steps and reducing the difficulty of the installation structure; secondly, the assembly structures of the parts to be assembled are different, the assembly relation of each part is unique, confusion in the installation process is effectively avoided, so that 'fool assembly' is realized, and the method is suitable for assembly by a novice; moreover, the invention adopts more ways of sleeving, clamping and the like for assembly, thereby further simplifying the assembly structure and reducing the installation difficulty.

Drawings

FIG. 1 is a general schematic diagram of an embodiment of the present invention.

Fig. 2 is an overall schematic view of a main body according to an embodiment of the present invention.

FIG. 3 is a diagram illustrating an assembled state according to a first embodiment of the present invention.

FIG. 4 is a diagram illustrating an assembled state in step two according to the embodiment of the present invention.

FIG. 5 is a diagram illustrating an assembly state in three steps according to an embodiment of the present invention.

FIG. 6 is a side view of the assembled state in step three according to the exemplary embodiment of the present invention.

Reference numerals: 1-main part, 2-cover, 3-screw I, 4-micro-break switch, 5-support I, 6-support II, 7-circuit board, 8-fixed guide rail, 9-screw II, 10-wire;

101-upper closed surface, 102-pillar, 103-wiring terminal, 501-boss, 501 a-upper screw hole, 502-side screw hole, 503-rectangular through groove, and 701-wiring hole.

Detailed Description

Embodiment 1 as shown in fig. 1, this embodiment provides a smart capacitor, which includes a main body 1, a cover 2, and a circuit board 7, a micro-switch 4, etc. installed in a closed space formed by covering the main body 1 and the cover 2. The top of the body 1 is of closed design, formed with 101. The capacitor is arranged in the main body 1, the surface of the main body 101 is provided with a plurality of terminals 103, the tops of the terminals 103 are exposed out of the main body 101, and the bottoms of the terminals 103 extend into a closed cavity formed by the main body 1 and the 101. In this embodiment, the terminals 103 are provided with 6, i.e., a1 phase, B1 phase (both N phase), C1 phase, a2 phase, B2 phase, and C2 phase. As can be seen from fig. 1 and 2, the left side of the main body 1 in fig. 1 and 2 is the front side of the product, the right side of the main body 1 is the rear side of the product in use, and the six terminals 103 are distributed in parallel and adjacently in two rows of 3 terminals in the front half of the main body 1.

At the front side end of the main body 1, a first group of pillars 102 adjacent to the posts 103 is provided, and a second group of pillars 102 is provided on the rear half of the main body 1, the first group of pillars 102 and the second group of pillars 102 are identical in structure and each consist of two pillars 102 arranged side by side and adjacent to each other and perpendicular to the posts 101, and in the present embodiment, the pillars 102 are arranged in the width direction of the main body 1. Unlike the first group of pillars 102, the second group of pillars 102 is located at a certain interval from the end of the rear side end of the main body 1. The middle space of the embodiment is the safe electric clearance that the length of the circuit board 7 is not less than the micro-break switch 4. In the above structure, the first group of support posts 102 are disposed at the end portions, and the second group of support posts 102 are disposed at positions close to the middle portion, so that the problem that the plate-shaped bodies mounted on the first group of support posts 102 and the second group of support posts 102 cannot be strongly supported due to lack of support between the first group of support posts 102 and the second group of support posts 102 caused by too long interval therebetween can be avoided. Can effectively ensure the supporting effect, ensure the support intensity, also avoid the transition of pillar quantity simultaneously, lead to the situation that space undersize between circuit board 7 and the main part 1, the fragmentation or is cut apart by each part to appear, satisfy the installation needs of little break switch 4's electric clearance and creepage distance.

After the body 1 is formed, its shape and structure are as described above, and its surface exposes four pillars and a plurality of posts 103.

As shown in fig. 3, the first group of pillars 102 and the second group of pillars 102 are respectively provided with a first supporting member 5 and a second supporting member 6, which are arch bridge-shaped, wherein the arch bridge-shaped means that the middle position of the bottom is provided with a supporting structure which is provided with a through groove, supported by the side walls of the through groove and the two sides of the arch bridge and close to the arch bridge. As shown in fig. 4, the first support member 5 and the second support member 6 are both provided with a pair of support legs, a support platform integrally formed with the support legs is arranged above the support legs, the upper surface of the support platform is a plane, and a rectangular through groove 503 with a round angle is formed between the support legs, and the rectangular through groove 503 can be used for introducing data lines such as lead-out lines of a temperature sensor or lead lines, so as to facilitate wiring operation. Moreover, the first support member 5 and the second support member 6 are oppositely arranged, and the rectangular through grooves 503 of the first support member and the second support member are communicated with each other, so that air flow is facilitated, and heat dissipation of the circuit board is facilitated. In order to facilitate the insertion or sleeve fit with the pillar 102, the bottom surface of the supporting leg is provided with an opening with a height and a diameter corresponding to the pillar 102, and the upper surface of the supporting platform is provided with an upper screw hole 501 a.

As shown in fig. 4, the length and the width of the circuit board 7 are slightly smaller than the top of the main body 1, that is, the length and the width of the main body 101, the left side of the circuit board 7 is provided with a first connecting hole corresponding to the position of the upper screw hole 501a of the first support member 5, and the right side of the circuit board 7 is provided with a second connecting hole corresponding to the upper screw hole 501a of the second support member 6. The number of the upper screw holes 501a and the number of the side screw holes 502 may be 1 to 3, and in this embodiment, in order to have a good fixing effect and consider convenience of assembly, the number of the upper screw holes 501a and the number of the side screw holes 502 are both set to two.

During installation, only the connecting holes in the circuit board 7 are opposite to the corresponding mounting holes, and then the screws I3 are screwed and fixed. Certainly, when the circuit board 7 is installed, the fixed guide rail 8 used in cooperation with the micro disconnecting switch 4 needs to be fixed on the upper surface of the circuit board 7 corresponding to the second support member 6, so that after the circuit board 7 is fixed, the micro disconnecting switch 4 can be directly fixed on the fixed guide rail 8 in a clamping manner (in a sliding manner from the side surface of the fixed guide rail 8), and then the quick assembly of the micro disconnecting switch 4 is completed.

Finally, in the width direction of the main body 1, side screw holes 502 are formed in the side walls of the first support member 5 and the second support member 6, and the cover 2 is detachably and fixedly connected to the side screw holes 502 through the second screws 9.

As can be seen from the above structural description, the present embodiment provides a capacitor with high part concentration, simple structure, convenient assembly and few steps, and the assembly process thereof is as follows:

firstly, respectively sleeving a support part on a first group of support columns 102 and a second group of support columns 102 on the structure of the main body 1 shown in FIG. 2 to form the structure shown in FIG. 3;

secondly, on the basis of the structure shown in fig. 3, placing the circuit board 7 and aligning the circuit board 7, meanwhile, placing the fixed guide rail 8 on the circuit board 7 above the second group of pillars 102, and screwing and fixing the circuit board 7, the first support piece 5 and the second support piece 6 by using the first screw 3 to form the assembly structure shown in fig. 4;

thirdly, rapidly mounting the micro disconnecting switch 4 on the fixed guide rail 8 on the structure shown in fig. 4, and connecting the micro disconnecting switch 4 with the corresponding binding post 103 by using a lead 10;

fourthly, in the structure shown in fig. 5, the cover 2 is screwed and fixed on the supporting member by the second screw 9, namely, the cover 2 is covered and closed with the main body 1.

Example 2 this example differs from example 1 in that: in this embodiment, circular bosses 501 are convexly provided on the upper surfaces of the supporting platforms of the first supporting member 5 and the second supporting member 6, the diameters of the circular bosses 501 are not less than 1/2 of the widths of the first supporting member 5 and the second supporting member 6, and the upper screw holes 501a are provided in the bosses 501. And the number of bosses 501 corresponds one-to-one to the number of upper screw holes 501 a.

The purpose of the present embodiment of the boss 501 is to: firstly, the height of the circuit board 7 relative to the circuit board 101 is further raised, the distance between the position of the micro-disconnecting switch 4 and a binding post is prolonged, the electric clearance and the creepage distance are increased, the production requirement is met, and the use safety of the capacitor is ensured. Meanwhile, larger operation space is provided for assembling steps such as wiring and the like. Secondly, there is the clearance between the boss 501 structure, and cooperation support piece 5 and the logical groove 503 of support piece two 6 bottoms can make the space of circuit board 7 below realize trompil around in the front of main part 1, the rear to the passing of wire such as temperature line also is favorable to arranging the wire, keeps the structure between circuit board 7 and the main part 1 neat, orderly.

Example 3 this example differs from example 1 in that: circular bosses 501 are convexly arranged on the upper surfaces of the supporting platforms of the first supporting piece 5 and the second supporting piece 6, the diameter of each circular boss 501 is preferably not less than 1/2 of the width of each supporting piece, and upper screw holes 501a coaxial with the circular bosses 501 are formed in the circular bosses 501. The structure of the circuit board 7 is especially different from that of the circuit board 7 in embodiment 1, circular openings with the size corresponding to the circular bosses 501 are formed in the positions, corresponding to the circular bosses 501, of the front side and the rear half of the circuit board 7, during assembly, the circuit board 7 is directly sleeved on the circular openings through the circular openings after being aligned, and then a gasket and a screw I3 with the size larger than the size of the circular openings and the size of the circular bosses 501 are matched, so that the circuit board 7 can be fastened on the first support piece 5 and the second support piece 6.

In the embodiment, the circuit board 7 is nested on the supporting pieces on the two sides by utilizing the protruding structure of the circular boss 501, on one hand, the matching use of the circular opening and the circular boss 501 is more beneficial to the quick positioning of the circuit board 7, the positioning difficulty of the circuit board 7 is reduced, and the assembly efficiency is improved; on the other hand, in the process of screwing by using the screw, the circular opening and the circular boss 501 are limited mutually, so that the circuit board 7 can be prevented from shifting and deviating in the screwing process, and further the fixed connection of the circuit board 7 is greatly facilitated.

In the above embodiment, in addition to the screw-fitting with the side screw hole 502, the upper screw hole 501a, etc. to detachably and fixedly connect the circuit board 7 and the cover 2 with the support on the main body 1, the screw hole structure may be designed as a through hole structure and fastened by a tapping screw; alternatively, the locking can be realized by a screw in an insert mode.

In conclusion, the invention provides the capacitor convenient to mount, the mounting structure of each mounting step is simplified and differentiated by centralizing parts, the processing operations convenient to connect, such as sleeving, clamping and the like, are used as much as possible, the mounting difficulty of the mounting structure of the capacitor is greatly reduced, the mounting process (mounting with the cover 2) of each part on the capacitor main body 1 is compressed to 5 steps, the assembly efficiency is effectively improved, the intelligent capacitor is convenient to mount and easy to mount by a novice, and the requirements of actual production, processing and later maintenance are fully met.

Claims

1. Intelligent condenser, its characterized in that: comprises that

the supporting pieces are in inserted fit with the paired supporting columns;

the micro-break switch is clamped on the fixed guide rail;

2. The smart capacitor of claim 1, wherein: the pillar quantity is 4, and wherein 2 pillars constitute the first one end of locating the length direction of main part, and remaining 2 pillars are the second and organize the other end of locating the length direction of main part.

3. The smart capacitor of claim 2, wherein: the set of 2 struts is arranged along the width direction of the main body.

4. The smart capacitor of claim 2 or 3, wherein: the first group is arranged near one end of the main body, and the second group is arranged at an interval with the other end of the main body.

5. The smart capacitor of claim 4, wherein: the spacing is not less than the electrical distance of the micro-break switch.

6. The smart capacitor of claim 2, wherein: the fixed guide rail is arranged on the second group.

7. The smart capacitor of claim 1 or 2, wherein: the supporting piece is arch bridge-shaped, the two sides of the bottom of the supporting piece are provided with openings which are matched with the supporting columns in an inserted connection or a sleeved connection, and the top of the supporting piece is provided with a first mounting hole.

8. The smart capacitor of claim 7, wherein: the top of support piece is equipped with the boss, first mounting hole is located in the boss.

9. The smart capacitor of claim 1 or 8, wherein: in the width direction of the main body, a second mounting hole is formed in the side wall of the supporting piece, and the cover is detachably and fixedly connected to the second mounting hole through a connecting piece.