CN216897752U

CN216897752U - Square display panel of hanging air conditioner

Info

Publication number: CN216897752U
Application number: CN202123378294.6U
Authority: CN
Inventors: 张遂富
Original assignee: Dongguan Huafang Electronic Technology Co ltd
Current assignee: Dongguan Huafang Electronic Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-07-05
Anticipated expiration: 2031-12-30

Abstract

The utility model relates to a square display panel of an air conditioner hanging machine, which comprises a substrate, a plastic shell and electronic components, wherein the substrate is a single-layer PCB (printed Circuit Board), and circuit patterns are only formed on the upper side surface of the substrate; all electronic components are welded on the upper side surface of the substrate in a surface mounting mode and are in conduction connection with the circuit patterns to construct an air conditioner on-hook display working circuit; the electronic component comprises patch lamp beads, a patch receiving head, a patch capacitor and a patch connecting terminal, wherein the patch lamp beads are arranged according to a preset lattice so as to construct a display circuit state by the combined light emission of the patch lamp beads of different loops; the plastic shell is fixed on the upper side face of the substrate and covers the surface mounted lamp beads, a plurality of reflection cavities are arranged on the plastic shell in a hollow mode, and the center of the bottom cavity opening of each reflection cavity corresponds to one surface mounted lamp bead. The utility model does not need a series of complex processes such as additional shaping of components, plug-in operation, wave soldering and the like, simplifies the production process, has high efficiency and greatly reduces the material cost and the labor cost.

Description

Square display panel of hanging air conditioner

Technical Field

The utility model relates to the technical field of display, in particular to an on-hook display panel of an air conditioner.

Background

As shown in fig. 1, which shows a schematic diagram of a conventional on-hook air conditioner display panel, including a main board 10, a daughter board 20 and a plastic housing 30, LED lamp beads are pre-welded and assembled on the daughter board 20, and extended and connected to an external circuit through a pin (201), and then the daughter board 20 and the plastic housing 30 are assembled and welded to the main board 10 through pins, an electric welding circuit needs to be formed on the lower side surface of the main board, wherein the daughter board 20 and the plastic housing 30 are assembled on the top surface of the main board 10, and after the daughter board 20 is inserted into a guide pin jack of the main board 10 through the guide pin 201 thereon, the lower side surface circuit is welded with pins; the circuit pattern on the lower side of the main board 10 is also provided with welding spots for receiving pins of components such as a head, a capacitor and a jumper, and the components are all in a plug-in mode, so that the components need to be shaped and then plugged in for operation, and after the traditional wave soldering, the production process of repairing the soldering tin panel by professional technicians is adopted, the efficiency is low, and the material cost and the labor cost are relatively high.

Disclosure of Invention

The utility model aims to provide a square display panel of an air conditioner hanging machine, which is convenient to manufacture and effectively reduces the production cost.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the square display panel of the air conditioner hanging machine comprises a substrate, a plastic shell and electronic components, wherein the substrate is a single-layer PCB (printed Circuit Board), the substrate is provided with an upper side surface and a lower side surface, and a circuit pattern is formed on the upper side surface only; all electronic components are welded on the upper side surface of the substrate in a surface mounting mode and are in conduction connection with the circuit patterns to construct an air conditioner on-hook display working circuit; the electronic components at least comprise patch lamp beads, a patch receiving head, a patch capacitor and patch connecting terminals, wherein the patch lamp beads are arranged on the upper side surface of the substrate according to a preset lattice so as to construct a display circuit state by the combined light emission of the patch lamp beads of different loops; the plastic shell is fixed on the upper side surface of the substrate and covers the surface-mounted lamp beads, a plurality of reflection cavities are arranged on the plastic shell in a hollow mode, and the center of the bottom cavity opening of each reflection cavity corresponds to one surface-mounted lamp bead; and the patch connecting terminal is used for connecting a signal port to the outside.

The scheme is further as follows: adopt the reference column to fix between plastic shell and the base plate, the reference column setting is at the back of plastic shell, and partial reference column falls into the inside that synthetic "8" word region is enclosed to the reflection chamber, and is the fretwork state around this partial reference column, corresponds on the base plate and has seted up the locating hole, and the locating hole runs through top side and downside, and the reference column penetrates behind the locating hole from the top side and level with the hydraulic press coldly pressing on the downside, makes the plastic shell together with the base plate is fixed.

The scheme is further as follows: the shape of reflection chamber is for leaking hopper-shaped or trapezoidal shape, and the bottom accent of reflection chamber narrows and is equipped with independent peripherad, and the peripherad surrounds the bottom accent of reflection chamber and closely laminates with the base plate, and different peripherads interval is distinguished.

The scheme is further as follows: the patch receiving head is provided with a main body and a pin extending outwards from one end of the main body, the pin is provided with a flat pasting part, and the flat pasting part is welded on the upper side surface of the substrate in a patch mode.

The scheme is further as follows: the flat pasting parts of the three pins are arranged in a row on the same horizontal plane, and the lower bottom surfaces of the flat pasting parts and the lower bottom surface of the main body are on the same horizontal plane.

The circuit electronic component is welded by an SMT chip mounter at one time, the production process is simple, the efficiency is high, and meanwhile, the material cost and the labor cost are greatly reduced; a series of complex processes such as additional shaping of components, plug-in operation and wave soldering, repair of a tin soldering panel by a professional technician and the like are not needed; the novel display panel process is revolutionary innovation for manufacturing the air conditioner on-hook display panel and accords with industrial popularization and utilization.

Description of the drawings:

FIG. 1 is a schematic diagram of a prior art structure;

FIG. 2 is a schematic structural diagram of a preferred embodiment of the present invention;

FIG. 3 is a circuit diagram of the embodiment of FIG. 2;

FIG. 4 is a partial structural view of the plastic housing of the embodiment of FIG. 2;

fig. 5 is a schematic structural diagram of the patch receiving head of the embodiment of fig. 2.

The specific implementation mode is as follows:

the conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

Referring to fig. 2 to 5, which are schematic views illustrating a preferred embodiment of the present invention, the present invention relates to an on-hook air conditioner display panel, and more particularly, to a square display panel distinguished from a circle, which includes a substrate 1, a plastic housing 2, and electronic components, wherein the substrate 1 is a single-sided PCB, the substrate 1 has an upper side 11 and a lower side 12, and a circuit pattern 13 is formed only on the upper side 11, so that the manufacturing is convenient, and the manufacturing cost of the substrate 1 is greatly reduced. All electronic components are welded on the upper side surface 11 of the substrate 1 in a surface mounting mode and are connected with the circuit patterns 13 in a conduction mode to form a loop, a novel display panel working circuit of an air conditioner hanging machine is constructed, one-time welding of an SMT surface mounting technology (surface mount technology) surface mounting machine is met, and the manufacturing process is greatly simplified. The electronic component at least comprises a surface-mounted lamp bead 3, a surface-mounted receiving head 4, a surface-mounted capacitor 5 and a surface-mounted wiring terminal 6, wherein the surface-mounted lamp beads 3 are arranged on the upper side surface 11 of the substrate 1 according to a preset lattice so as to construct a novel display state by the combined light emission of different surface-mounted lamp beads 3; the plastic shell 2 is fixed on the upper side surface of the substrate 1 and covers the surface-mounted lamp beads 3, a plurality of reflection cavities 21 are hollowed in the plastic shell 2, and the center of the bottom opening of each reflection cavity 21 corresponds to one surface-mounted lamp bead 3; and the patch connecting terminal 6 is used for connecting a signal port to the outside.

The substrate 1 only forms the circuit pattern 13 on the upper side 11, not only the manufacturing cost of the substrate is low, but also the circuit welding process of single-layer PCB layout can be met, the assembly of electronic components is facilitated, all the electronic components are welded on the upper side 11 of the substrate 1 in a surface mounting mode and are in conduction connection with the circuit pattern 13, therefore, the shaping components are not required to be inserted into the substrate 1 according to the traditional industry method and the circuit welding process formed on the lower side of the substrate 1 is not required, only the electronic components are required to be directly attached to the upper side of the substrate 1, the electronic components have no pins, the assembly process is simple, and the manufacturing cost of the air conditioner on-hook display panel is greatly reduced. As shown in fig. 3, in this embodiment, the circuit pattern 13 is arranged by optimizing the principle of the circuit loop, and the jumper is processed by using a patch-type zero-ohm resistor, so that the requirement of forming the circuit pattern by the single-layer PCB is met, and all electronic components are patch-type soldered on the upper side 11 of the substrate 1, thereby optimizing the manufacturing process and reducing the production cost.

As shown in fig. 2 to 4, in this embodiment, the plastic housing 2 and the substrate 1 are fixed by a positioning column 22, the positioning column 22 is disposed on the back surface of the plastic housing 2, the substrate 1 is correspondingly provided with a positioning hole 14, the positioning hole 14 penetrates through the upper side 11 and the lower side 12, and the positioning column 22 penetrates through the positioning hole 14 from the upper side and then is cold-pressed and flattened on the lower side 12 by a hydraulic press, so that the plastic housing 2 and the substrate 1 are fixed together. Preferably, the plastic housing 2 is assembled on the substrate 1 by a press fit method of a hydraulic press, the positioning column 22 is uniformly stressed, the bumps are flat and do not bounce, and the substrate is connected by the positioning column 22 in a press-riveting manner, so that the assembly is simple and firm. In this embodiment, a part of the positioning columns 22 falls into the inside of the region enclosed by the reflective cavity and shaped like a "8", and the periphery of the part of the positioning columns is in a hollow state, so that the structural property of the reflective cavity is ensured, and the bottom cavity opening of the reflective cavity is convenient to be attached to the substrate; by using the structural layout, the effect of tightly adhering the bottom cavity opening of the reflection cavity near the periphery of the positioning column 22 to the substrate can be increased, light leakage and light crosstalk are prevented, and the structure is waterproof and moistureproof. And be the fretwork state around this part reference column, when the hydraulic press was colded pressing, reference column 22's bottom was compressed by external force and is expanded around to, the inflation part is filled the reference column around the fretwork position, the natural elasticity that forms after the release reference column compression expansion, guarantee whole plastic shell does not receive external force to influence, reach plastic shell and the laminating of base plate smoothness compactness, ensure that reflection chamber 21 closely covers paster lamp pearl 3, connect closely, have good each and prevent the cluster light between the independent chamber, dampproofing efficiency promotes display effect and life. In this embodiment, the shape of the reflection cavity 21 is funnel-shaped or trapezoid, which is beneficial to light emission, the bottom opening of the reflection cavity 21 is narrowed and provided with an independent rim 23, the rim 23 surrounds the bottom opening of the reflection cavity 21 and is tightly attached to the substrate 1, and different rims 23 are separated at intervals to obtain the characteristic of independently contacting the substrate. The structure further improves the tightness of the bottom orifice of the reflection cavity 21 and the laminating of the substrate 1, utilizes the independent and elastic annular edge 23, effectively reduces the contact area, ensures that the pasting plates of different reflection cavities 21 are effective and tight, has the good effect of preventing light leakage between independent cavities and moisture-proof effect, and effectively solves the problem that the traditional plastic shell cannot be laminated with a PCB substrate loosely due to the characteristic problem of plastic. In the embodiment, an independent sealing ring opening 24 is also formed at the edge of the back side of the plastic housing 2, and a large surrounding ring is further formed at the periphery of the ring edge 23, so that the plastic housing has a good anti-crosstalk and light-leakage effect.

In the embodiment shown in fig. 5, the die attach receiving head 4 includes a main body 41 and a lead 42 extending outward from one end of the main body 41, and the lead 42 includes a flat attaching portion 421, and the flat attaching portion 421 is die attach welded to the upper side 11 of the substrate 1, so that the die attach receiving head 4 can be die attach welded to the substrate 1. As shown in the figure, the three pins 42 are provided, and the flat attaching portions 421 of the three pins are arranged in a row on the same horizontal plane, and the lower bottom surfaces of the flat attaching portions 421 and the lower bottom surface of the main body 41 are on the same horizontal plane, so as to ensure that the flat attaching portions 421 are connected with the corresponding bonding pads on the substrate in a surface mounting manner and can tin, the welding is firm, the loosening is not easy, and meanwhile, the main body 41 of the surface mounting receiving head 4 is ensured to lie flat against the substrate.

In the scheme of the display panel of the on-hook air conditioner, the substrate is a single-layer PCB, the circuit pattern is only formed on the upper side surface, the plastic shell and the electronic components are assembled on the upper side surface of the substrate together, all the electronic components are welded on the upper side surface of the substrate in a surface mounting mode and are in conduction connection with the circuit pattern, the on-hook air conditioner is completed by adopting an SMT (surface mounting technology) surface mounting machine through one-step welding, the production process is simple, the efficiency is high, and meanwhile, a series of complex processes such as additional shaping of the components, plug-in operation and wave soldering, manual tin panel repairing and the like are not needed; meanwhile, the material cost and the labor cost are both greatly reduced, the manufacturing of the novel display panel of the air conditioner hanging machine is revolutionary innovation, and the industrial popularization and utilization are met. Compared with the traditional old process display board of the air conditioner on-hook, the utility model greatly reduces the number of discrete components, greatly simplifies the production and assembly process links of the display board of the air conditioner on-hook, ensures the production quality and greatly saves the production cost of the display board of the air conditioner on-hook.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it is therefore intended that all such changes and modifications as would be within the spirit and scope of the appended claims be embraced thereby.

Claims

1. The air conditioner hanging machine square display board is characterized in that: the PCB comprises a substrate (1), a plastic shell (2) and electronic components, wherein the substrate (1) is a single-layer PCB, the substrate (1) is provided with an upper side surface (11) and a lower side surface (12), and a circuit pattern (13) is only formed on the upper side surface (11); all electronic components are welded on the upper side (11) of the substrate (1) in a surface mounting mode and are in conduction connection with the circuit pattern (13), and an air conditioner on-hook display working circuit is constructed; the electronic component at least comprises a patch lamp bead (3), a patch receiving head (4), a patch capacitor (5) and a patch connecting terminal (6), wherein the patch lamp beads (3) are arranged on the upper side (11) of the substrate (1) according to a preset lattice so that display states are constructed by combined light emission of the patch lamp beads (3) of different loops; the plastic shell (2) is fixed on the upper side face of the substrate (1) and covers the patch lamp beads (3), a plurality of reflection cavities (21) are arranged on the plastic shell (2) in a hollowed-out mode, and the center of the bottom cavity opening of each reflection cavity (21) corresponds to one patch lamp bead (3); and the patch connecting terminal (6) is used for connecting a signal port to the outside.

2. An air conditioner hanging machine square display board according to claim 1, characterized in that: adopt reference column (22) fixed between plastic shell (2) and base plate (1), reference column (22) set up the back at plastic shell (2), and part reference column (22) fall into the inside that synthetic "8" word region is enclosed in reflection chamber (21), and be the fretwork state around this part reference column, locating hole (14) have been seted up to correspondence on base plate (1), side (11) and downside (12) are run through in locating hole (14), reference column (22) are pressed cold to level and are fixed with the hydraulic press on downside (12) after side (14) penetrate locating hole (14) from last side, make plastic shell (2) and base plate (1) fixed seal together.

3. An air conditioner hanging machine square display board according to claim 1 or 2, characterized in that: the shape of reflection chamber (21) is for leaking hopper-shaped or trapezoidal shape, and the bottom accent of reflection chamber (21) narrows and is equipped with independent rim (23), and rim (23) surround the bottom accent of reflection chamber (21) and closely laminate with base plate (1), and different rim (23) interval are distinguished.

4. An air conditioner hanging machine square display board according to claim 1, characterized in that: the patch receiving head (4) is provided with a main body (41) and a pin (42) extending outwards from one end of the main body (41), the pin (42) is provided with a flat pasting part (421), and the flat pasting part (421) is welded on the upper side (11) of the substrate (1) in a patch mode.

5. An air conditioner hanging machine square display board according to claim 4, characterized in that: the pins (42) are three, the flat pasting parts (421) of the three pins are arranged in a row on the same horizontal plane, and the lower bottom surfaces of the flat pasting parts (421) and the lower bottom surface of the main body (41) are on the same horizontal plane.