CN213272942U

CN213272942U - Electrical apparatus mounting box structure and air conditioner

Info

Publication number: CN213272942U
Application number: CN202022210329.4U
Authority: CN
Inventors: 凌圣明; 涂连军; 聂奇松; 王振媛; 李群; 罗卿
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-05-25
Anticipated expiration: 2030-09-30

Abstract

The utility model discloses an electrical appliance mounting box structure and an air conditioner, which comprises a filter circuit board, a master control circuit board, a driving circuit board and a reactor which are electrically connected, and also comprises a driving mounting board and a master control mounting board, wherein one side of the two mounting boards are connected to form a right-angle arrangement; one surface of the driving mounting plate is fixed with the driving circuit board, and the other surface of the driving mounting plate is exposed out of the radiator on the driving circuit board; one side of the main control mounting plate is fixed with the main control circuit board, and the other side of the main control mounting plate is fixed with the filter circuit board; the reactance is fixed in a mounting box and is connected with the driving circuit board through a wire; the utility model adopts an open design, the space utilization is reasonable, the circuit is modularized, the whole body can be directly disassembled or the parts can be disassembled by screws, the installation is convenient, and the disassembly and the maintenance are convenient; the wire casing and the wire passing hole convenient to wire are convenient for wire routing, so that strong current and weak current are separately routed, and EMC test standards are better met.

Description

Electrical apparatus mounting box structure and air conditioner

Technical Field

The utility model relates to an electrical equipment especially relates to an electrical installation box structure and air conditioner.

Background

In the prior art, an electrical box of an air conditioner condensing unit (also called an outdoor host) is large in overall size, large in required installation space and not beneficial to the layout of pipelines of the whole structure of the unit. The electric appliance box component mainly comprises an electric appliance box component, a power supply input part, a filtering part, a driving part and a main control part. In current air conditioner condensation unit, the overall arrangement is mostly that drive division and top management part are located electrical apparatus box subassembly enclosure space, and power input part and filtering part are located electrical apparatus box subassembly front side backup pad, the external power source wiring of being convenient for. However, the electrical box adopts a closed structure, which is not beneficial to heat dissipation of components in the electrical box and influences reliability and service life of the components.

Therefore, how to design an electrical installation box structure with smaller volume, good heat dissipation and strong interference resistance is an urgent technical problem to be solved in the industry.

SUMMERY OF THE UTILITY MODEL

In order to solve the unreasonable radiating defect that is unfavorable for of structure that exists among the prior art, the utility model provides an electrical apparatus mounting box structure and air conditioner.

The utility model adopts the technical scheme that an electric appliance mounting box structure is designed, which comprises a filter circuit board, a master control circuit board, a driving circuit board and a reactor which are electrically connected, and also comprises a driving mounting board and a master control mounting board, wherein one side of the two mounting boards are connected to form a right-angle arrangement; one surface of the driving mounting plate is fixed with the driving circuit board, and the other surface of the driving mounting plate is exposed out of the radiator on the driving circuit board; one side of the main control mounting plate is fixed with the main control circuit board, and the other side of the main control mounting plate is fixed with the filter circuit board; and the reactance is fixed in a mounting box and is connected with the driving circuit board through a wire.

The radiator is installed in the one side that deviates from the main control mounting panel.

The driving mounting plate and the main control mounting plate are perpendicular to the ground.

And the main control mounting plate is provided with a strong current wiring terminal and a weak current wiring terminal which are connected with an external power grid.

The main control mounting plate is provided with a threading hole through which a power supply line passes, and a rubber sealing sheet is arranged in the threading hole.

The driving mounting plate is of a frame-shaped structure with a window, and the window can penetrate through the radiator.

An air conditioner comprises a condensing unit, wherein the condensing unit adopts the electric appliance mounting box structure.

The condensation unit comprises a fan cavity and a compressor cavity which are arranged side by side, a fan is arranged in the middle of the fan cavity, a compressor is arranged on the lower portion of the compressor cavity, a driving mounting plate and a main control mounting plate are mounted above the compressor, and a mounting box is mounted in a corner above the fan.

The condensing unit is provided with a face cover, one side of the face cover is provided with an access door, the access door is right opposite to the main control circuit board, the lower end of the access door is provided with a threading plate, and the threading plate is fixedly connected with the face cover.

The radiator extends into the fan cavity and is positioned obliquely above the fan.

The utility model provides a technical scheme's beneficial effect is:

the utility model adopts an open design, the space utilization is more reasonable, the layout of the pipeline with the whole structure is facilitated, the circuit is modularized, the whole can be directly disassembled or disassembled in parts through screws, the installation is convenient, the disassembly and the maintenance are convenient, and the like; the open type electrical box is small in installation area, the independent closed reactor box is arranged on the side edge, space is reasonably utilized, dust and water are prevented, the heat dissipation requirement of the reactor is met, and the reliability and the service life of components are improved; the reliability and the life of unit operation are improved, be convenient for walk the wire casing of line and cross the line hole, make strong and weak electricity separately walk the line, better satisfy EMC test standard, can not select two fan casings and adopt single fan casing, reduce cost.

Drawings

The invention is explained in more detail below with reference to exemplary embodiments and the accompanying drawings, in which:

FIG. 1 is an external perspective view of the preferred embodiment;

FIG. 2 is a perspective view of the preferred embodiment with the face shell removed;

FIG. 3 is a front view of a preferred embodiment master mounting plate;

FIG. 4 is a front view of the drive mounting plate and the master mounting plate of the preferred embodiment;

FIG. 5 is a rear view of the drive mounting plate and the main control mounting plate of the preferred embodiment;

FIG. 6 is a top view of the preferred embodiment drive and master mounting plates;

FIG. 7 is a reactive perspective view of the preferred embodiment;

FIG. 8 is a front view of the preferred embodiment drive mounting plate and main control mounting plate without components;

FIG. 9 is a schematic view of a preferred embodiment of a connection plate;

FIG. 10 is a perspective view of the preferred embodiment drive mounting plate;

FIG. 11 is a schematic view of a preferred embodiment of a spacer structure;

FIG. 12 is a schematic diagram of the electrical connections of the preferred embodiment.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The utility model discloses an electrical appliance mounting box structure, which comprises a filter circuit board, a main control circuit board, a driving circuit board, a reactor, a driving mounting board and a main control mounting board, wherein the filter circuit board, the main control circuit board, the driving circuit board and the reactor are electrically connected; one surface of the driving mounting plate is fixed with the driving circuit board, and the other surface of the driving mounting plate is exposed out of the radiator on the driving circuit board; one side of the main control mounting plate is fixed with the main control circuit board, and the other side of the main control mounting plate is fixed with the filter circuit board; and the reactance is fixed in a mounting box and is connected with the driving circuit board through a wire.

It is noted that the circuitry of a device may involve a plurality of circuits and modules. The present invention is applied to an air conditioner and has a circuit diagram as shown in fig. 12. The circuits can be organically integrated according to actual needs during design and installation and are installed on a plurality of installation boards. The utility model discloses an installation structure belongs to open, open structure, does not have inclosed space. Each fixing plate is made oppositely, and can be directly and integrally disassembled or disassembled in parts through screws, so that the mounting, the dismounting and the maintenance are convenient, and the like.

Fig. 3, 4, 5, and 6 show a front view of the main control mounting plate, a front view of the drive mounting plate and the main control mounting plate, a back view of the drive mounting plate and the main control mounting plate, and a top view of the drive mounting plate and the main control mounting plate, respectively, and it can be seen that the heat sink is mounted on a side facing away from the main control mounting plate in the preferred embodiment. The driving mounting plate and the main control mounting plate are perpendicular to the ground. The main control mounting plate is provided with a strong current wiring terminal 120 connected with an external power grid and a weak current wiring terminal (in a preferred embodiment, the terminal 130 is used for connecting an indoor unit of an air conditioner, and the two terminals are 140 and 150, one is a zero line wiring board and the other is a wiring terminal for outputting low voltage by a main board, the main control circuit board is provided with a threading hole (180 and 190) for a power supply line to pass through, and a rubber sealing sheet is arranged in the threading hole.

Referring to the preferred embodiment shown in fig. 10, the drive mounting plate 20 is in the form of a frame-like structure with a window 20c that extends through the heat sink. Icon 20a is a screw hole, icon 20b is a bump, and icon 20d is a bracket insert. Bracket tabs may be inserted into the bulkhead assembly 110 to secure the drive mounting plate.

The utility model also discloses an air conditioner, including the condensation unit, the condensation unit adopts foretell electrical apparatus mounting box structure. Fig. 1 shows a perspective view of the preferred embodiment.

Referring to the three-dimensional view of fig. 2 with the front shell removed, the condensing unit includes a fan chamber and a compressor chamber arranged side by side, a fan is installed in the middle of the fan chamber, a compressor is installed at the lower part of the compressor chamber, the driving installation plate and the main control installation plate are installed above the compressor, and the installation box is installed in the corner of the inclined upper side of the fan. In the drawing, 700 is a condenser assembly, 600 is a compressor, 500 is a fan, 400 is a fan bracket assembly, 300 is a main control mounting plate, 100 is a reactance mounting box, and 110c is a motor wire through hole. Mutually matched and fixed to keep the structure of the whole machine stable. The requirements of the vibration test of the whole machine are met.

Referring to fig. 1, in the preferred embodiment, the condensing unit is provided with a face cover 401, an access door 402 is arranged on one side of the face cover, the access door is opposite to the main control circuit board, and a threading plate 403 is arranged at the lower end of the access door and is fixedly connected with the face cover. The threading plate is also provided with a wire guide 404. The wire holes are two, one is used for passing a power wire, and the other is used for passing a control wire.

The heat sink 90 extends into the fan chamber and is located obliquely above the fan 500.

The details of the components of the present invention are detailed below with reference to the accompanying drawings:

fig. 3 is a front view of a preferred embodiment master mounting board, and the icon 300 is the sum of the mounting board and all components above. The main control mounting plate 10 is formed by a main plate support plate 11 and a filter support plate 12 which are stacked front and back. The main board support plate 11 is used for fixing the main control circuit board 30, and the filter support plate 12 is used for fixing the filter circuit board 50. In order to avoid the short circuit and other faults caused by the direct installation of the main control circuit board 30 on the main control installation board 10 made of metal, the main control circuit board 30 needs to be installed on the main control fixing board 40 first. The main control fixing plate 40 is made of plastic by injection molding and is fixed on the main board supporting plate 11 through screws, the main control circuit board 30 can be fixed on the main control fixing plate 40 through the edge buckle of the main control fixing plate 40, and the main control circuit board 30 can also be fixed on the main control fixing plate 40 through the holes reserved at four corners on the main control circuit board 30 by using screws. The main control circuit board 30 can be several parts, temperature sensing bulb wiring 30a, weak current wiring 30b, strong current wiring 30c, mainboard output to drive wiring 30 d. The strong current wiring terminal 120, the external electromagnetic coil wiring board 130, the zero line wiring board 140 and the low voltage wiring board 150 are fixed on the main board supporting board 11 by the cooperation of the screws and the holes on the main board supporting board 11 which are provided with the positioning convex hulls. The power line fixing clip 160 and the external electromagnetic coil fixing clip 170 are all provided with insulating gaskets and fixed on the mainboard supporting plate 11 through screws. Strong current passes through coil 180 and weak current passes through coil 190. Icon 20 is a drive mounting plate, icon 210 is a through-coil, icon 11e is a ground hole, and icon 200 is a through-coil.

Fig. 4 is a front view of the drive and master mounting boards of the preferred embodiment, with reference to fig. 10 as the master mounting board, reference to fig. 20 as the drive mounting board, and reference to fig. 90 as the heat sink. Fig. 8 is a front view of the drive mounting plate and main control mounting plate of the preferred embodiment shown without components, and the drive mounting plate and main control mounting plate combination is designated by reference numeral 1.

FIG. 5 is a rear view of the drive and main control mounting plates of the preferred embodiment, with the external power supply lines of FIG. 3 attached to the lower ends of the high current terminals 120 and pressed tightly by the power line clamps 160. The upper end of the strong current terminal 120 is electrically connected to the filter board power input 50b of the filter circuit board 50 through the filter coil 210, and the connection line passing magnetic ring 230 is fixed below the filter circuit board 50 by using a tap wire. If the strong current terminal 120 ground wire passes through the magnetic ring, the magnetic ring 240 can be wound from the coil 210 to the side of the filter support plate 12, and the magnetic ring 240 is fixed on the filter support plate 12 by a terminal wire. And then the coil 210 passes back to the side of the main board supporting plate 11 (the space of the rear side is effectively utilized, the layout is more reasonable), and the coil is connected to the grounding hole 11e (the assembly is convenient). The ground wire of the filter circuit board 50 is routed from the wire coil 200 to the motherboard support plate 11 side, and is connected to the ground hole 11 e. The filtering circuit board 50 outputs a single-phase power to the main control circuit board 30, and the single-phase power is wired from the wire coil 200 and fixed by binding along the left side branch joint line of the main board support plate 11. The wires are routed to the main control circuit board 30 along the high voltage wiring terminals 120 and above the high voltage over coil 180. One of the live wire and the zero wire is connected by an inductor 220, the inductor 220 is arranged on the left side of the driving mounting plate 20, a non-inductive wire can selectively penetrate through a magnetic ring 250 (which is beneficial to meeting the EMC test requirement), and the magnetic ring 250 is arranged in the space on the left side of the main board supporting plate 11, so that the space of the electrical box assembly 1 is fully utilized. The output zero line end of the filter circuit board 50 is firstly connected to the zero line wiring board 140 and then is switched to the main control circuit board 30, and the terminals are in common voltage to improve the assembly efficiency. The electrical connection between the main board output to the driving connection point 30d on the main control circuit board 30 and the driving board bus and the communication line input 70a on the driving board circuit board 70 is routed from the wire passing coil 200, and the main board output to the driving connection point can be fixed by being tied with the wire routed from the wire passing coil 200, or can be fixed by being tied with a branch head wire on the main board support plate 11.

Fig. 9 is a schematic diagram of a connection board according to a preferred embodiment, in which strong current load wires such as the electromagnetic coil and the electric heating tape of the compressor shown in fig. 5 are fixed by the wire fixing hooks on the filter support plate 12, then pass through the strong current coil 180 to the main board support plate 11 side, and are fixed by the wire fixing hooks along the reserved holes on the main control circuit board 30 side to be connected to the strong current wire connection positions 30c on the main control circuit board 30. The weak point load wiring such as the sensor and the temperature sensing bulb is fixed through the wiring fixing hook 12d on the filtering supporting plate 12, then the weak point wiring passing coil 190 is penetrated to the side of the main board supporting plate 11, the wiring is fixed along the side hole position of the main board supporting plate 11, and the strong current load wiring which is wired along the side of the main control circuit board 30 is avoided. (being beneficial to meeting EMC test), then fixing the weak point load line by two hole sites reserved at the upper positions in the side edges of the main control circuit board 30, and finally connecting the weak point load line to the weak current line wiring position 30b on the main control circuit board 30. The main control circuit board 30 outputs 12V power to a low voltage terminal board 150 (for the main board has only one low voltage output port, but needs to connect a plurality of low voltage loads), and the electrical connection wires of the main control circuit board 30 and the external electromagnetic coil terminal board 130 are wired together with the weak point load wires. The low voltage terminal block 150 is connected to the external solenoid terminal block 130 to provide 12V power, and the electrical connections are wired to the adjacent line of weakness. External solenoid wiring board 130 is provided to facilitate customer wiring. The line is walked with strong and weak current rationally and is partd, better satisfying complete machine EMC test. In fig. 5, an icon 50a is a filter board power output, 60 is a filter fixing board (in order to prevent the filter circuit board 50 from being directly mounted on the filter supporting board 12 made of a metal material to cause a fault such as a short circuit, the filter circuit board 50 is required to be mounted on the filter fixing board 60 first, the filter fixing board 60 is made of plastic injection molding), 80a is an upper wire slot, 70b is a drive board power input, 70c is a drive board power output, 80 is a drive fixing board (in order to prevent the drive circuit board 70 from being directly mounted on the drive mounting board 20 made of a metal material to cause a fault such as a short circuit, the drive circuit board 70 is required to be mounted on the drive fixing board 80 first, the drive fixing board 80 is made of plastic injection molding. In fig. 9, reference numeral 12 denotes a filter support plate, 12a denotes heat dissipation holes, 12c denotes a weak current through hole, 12b denotes a strong current through hole, 11d denotes a weak current through hole, 11c denotes a strong current through hole, 11b denotes a U-shaped groove, 11e denotes a ground hole, and 11a denotes a U-shaped groove.

As shown in fig. 2, 5 and 11. The electrical connection line from the filter board power output 50a on the filter circuit board 50 to the drive board power input 70b on the drive board circuit board 70 is tied and fixed with a high temperature wire along the wiring slot 80a on the drive fixing board 80. The magnetic ring passing through the connecting wire can be fixed at the reserved hole position on the upper side of the right side bending part 110g on the partition board assembly 110 by a branch head wire. The compressor wire is fixed by high temperature wire binding along the lower wire slot 80b of the driving fixing plate 80. The magnetic ring passing through the connecting wire can be fixed at the reserved hole position in the middle of the right side bending part 110g on the partition board assembly 110 by a branch head wire. In fig. 11, an icon 110a is a reactor wire passing hole, 110b is a wire fixing hook, 110c is a motor wire passing hole, 110d is a square groove, 110e is a square hole, and 110f is a bracket.

As shown in fig. 2, 3, and 11, the motor wires are passed from the blower fan 500 side to the electrical box unit 300 side through the motor wire passing holes 110c in the bulkhead assembly 110. Reserved hole sites along the left sides of the partition plate assembly 110 and the main board supporting plate 11 are tied with branch heads and fixed to be wired to the main control circuit board 30, the ground wire is connected to the grounding hole 11e in the main board supporting plate 11, and the hole sites are provided with screws for avoiding wiring touch. The compressor ground wire can be wired to the ground hole 11e together with the motor wire.

As shown in fig. 2, 5 and 6, an independent reactor box is designed and arranged at the side of the fan 500, so that the space of the whole machine is utilized more reasonably. The reactor is arranged on the fan 500 side, and a totally-enclosed reactor box 101 structure (the reactor box is shown in figure 7) is adopted, so that the dustproof and waterproof requirements are better met. Meanwhile, the reactor box assembly 100 is arranged on the side of the fan 500, namely on the air duct of the whole machine, so that the reactor box assembly 100 can radiate heat conveniently, and the temperature requirement of the reactor 103 can be met. The reactor box 101 is provided with two wire fixing hooks 105 for fixing magnetic rings through which the incoming wires and the outgoing wires of the three reactors 103 penetrate respectively. The reactor box 101 is provided with a U-shaped hole which is sleeved with a wire passing rubber ring 104 for the wire inlet and outlet of the reactor 103. The inlet and outlet wires of the reactor 103 and the electrical connection wires from the filter board power output 50a on the filter circuit board 50 to the drive board power input 70b on the drive board circuit board 70 are wired together and fixed by high temperature wire binding along the wiring of the wire slot 80a on the drive fixing board 80, and are connected to the reactor inlet wire connection position 70d and the reactor outlet wire connection position 70e on the drive board circuit board 70. The reactor box 101 is provided with a bracket 101a and a bracket 101c, the bracket 101a is matched with the motor bracket assembly 400, and the bracket 101c is matched with the driving mounting plate 20 to support the reactor box assembly 100 and then fixed through screws. The brackets 101b at both ends of the reactor case 101 are fitted to the reactor case cover 102, and screws are screwed to close the reactor case assembly 100.

As shown in fig. 2, 10 and 11, the partition plate assembly 110 is provided with a square groove 110d and a square hole 110e for cooperating with the electrical box component 300. The support insert 20d on the driving mounting plate 20 can be inserted into the square hole 110e for supporting. The square groove 110d is convenient for mounting the electric appliance box component, and the whole electric appliance box component 300 can be directly mounted at a designated position by moving downwards from the upper part without being influenced by the structure pipeline of the whole machine. The partition assembly 110 is provided with a bracket 110f for installing a GPRS communication module, thereby realizing a remote monitoring function. The wire fixing hook 110b is used for fixing an external customer incoming wire.

The open type electrical box is used for an air conditioner, so that components can be better radiated, and the temperature requirement is met. The reliability and the service life of the device are improved. And this design utilization space is more reasonable, is favorable to the overall arrangement of structural line, can adopt single fan casing, practices thrift the cost. And the open electrical box is formed by combining a plurality of modules, can be directly integrally disassembled or disassembled in parts through screws, and is convenient to install, disassemble and maintain. The reasonable layout of the components and the hole sites on the electric appliance box component is beneficial to the electric connection between the electric appliance components, effectively separates strong current from weak current, and better meets the EMC test standard.

The foregoing examples are illustrative only and are not intended to be limiting. Any equivalent modifications or variations without departing from the spirit and scope of the present application should be included in the claims of the present application.

Claims

1. The utility model provides an electrical apparatus mounting box structure, includes filter circuit board, master control circuit board, dirver circuit board, the reactance of electricity connection, its characterized in that: the device also comprises a driving mounting plate and a main control mounting plate, wherein one sides of the two mounting plates are connected to form a right-angle arrangement; one surface of the driving mounting plate is fixed with the driving circuit board, and the other surface of the driving mounting plate is exposed out of the radiator on the driving circuit board; one side of the main control mounting plate is fixed with the main control circuit board, and the other side of the main control mounting plate is fixed with the filter circuit board; and the reactance is fixed in a mounting box and is connected with the driving circuit board through a wire.

2. The electrical apparatus mounting box structure of claim 1, wherein: the radiator is installed in the one side that deviates from the main control mounting panel.

3. The electrical apparatus mounting box structure of claim 1, wherein: the driving mounting plate and the main control mounting plate are perpendicular to the ground.

4. The electrical apparatus mounting box structure of claim 1, wherein: and the main control mounting plate is provided with a strong current wiring terminal and a weak current wiring terminal which are connected with an external power grid.

5. The electrical equipment mounting box structure of claim 4, wherein: the main control mounting plate is provided with a threading hole through which a power supply line passes, and a rubber sealing sheet is arranged in the threading hole.

6. The electrical apparatus mounting box structure of claim 2, wherein: the driving mounting plate is of a frame-shaped structure with a window, and the window can penetrate through the radiator.

7. An air conditioner, includes condensing unit, its characterized in that: the condenser unit adopts the electrical installation box structure of any one of claims 1 to 6.

8. The air conditioner according to claim 7, wherein: the condensation unit comprises a fan cavity and a compressor cavity which are arranged side by side, a fan is arranged in the middle of the fan cavity, a compressor is arranged on the lower portion of the compressor cavity, a driving mounting plate and a main control mounting plate are mounted above the compressor, and a mounting box is mounted in a corner above the fan.

9. The air conditioner according to claim 8, wherein: the condensing unit is provided with a face cover, one side of the face cover is provided with an access door, the access door is right opposite to the main control circuit board, the lower end of the access door is provided with a threading plate, and the threading plate is fixedly connected with the face cover.

10. The air conditioner according to claim 9, wherein: the radiator extends into the fan cavity and is positioned obliquely above the fan.