CN210568789U

CN210568789U - Electric heater and static guiding device thereof

Info

Publication number: CN210568789U
Application number: CN201921580375.4U
Authority: CN
Inventors: 张祝宾; 邓永文; 宁瀛锋; 杜东逸; 王锦辉; 赵跃
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-05-19
Anticipated expiration: 2029-09-20

Abstract

The utility model discloses an electric heater and static guiding device thereof. There is the gap on the insulating casing with the inside controller atmosphere intercommunication of electric heater, static guiding device is including aiming at the at least partial length setting's of gap electrically conductive part, electrically conductive part with the complete machine ground wire of electric heater is connected. The electric heater comprises the electrostatic flow guiding device. The utility model discloses electric heater and static guiding device thereof introduces the complete machine ground wire with electric charge through increasing electrically conductive ornamental strip or electrically conductive inserted sheet in gap department according to the principle of the little route of electric charge preferred selection impedance, through ground wire to the ground release, prevents that the controller from being damaged by static, provides complete machine antistatic reliability, and electrically conductive device conceals not to influence the outward appearance.

Description

Electric heater and static guiding device thereof

Technical Field

The utility model relates to an electrostatic diversion technique especially relates to an electric heater and electrostatic diversion device thereof.

Background

The display part of the front shell of the electric heater is basically a plastic mold, the electric heater does not have conductivity, assembly gaps exist in partial machine types, and if a controller exists under the condition that the gaps exist, the hidden danger that the controller is damaged by static electricity exists. When a 15kV air discharge test is actually carried out, static electricity can enter the whole machine through a gap and is led into a circuit through a metal component on a controller, and the controller element is damaged.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide an electric heater and static guiding device thereof, the insulating casing who has solved the electric heater has the static difficult problem when assembling the gap, passes through ground wire ground release with electric charge through the conductive parts who aims at this gap add.

In order to solve the technical problem, the utility model adopts the following technical scheme:

on the one hand, the utility model provides an electrostatic guiding device of electric heater. There is the gap on the insulating casing with the inside controller atmosphere intercommunication of electric heater, static guiding device is including aiming at the at least partial length setting's of gap electrically conductive part, electrically conductive part with the complete machine ground wire of electric heater is connected.

Optionally, for the electrostatic deflector, the conductive member includes a trim strip snapped at the gap.

Optionally, for the electrostatic current guiding device, the decorative strip extends to the intersection of the two walls of the insulating housing along the gap, and extends along the line of the intersection of the two walls of the insulating housing to the connection with the ground line of the whole machine.

Optionally, for the electrostatic deflector, the conductive member comprises a tab mounted on the controller, the tab being between the controller and the gap and having an angle with a plane in which the controller is located.

Optionally, for the electrostatic deflector, the controller comprises a printed circuit board.

Optionally, for the electrostatic deflector, the insert is soldered on the printed circuit board.

Optionally, for the electrostatic current guiding device, a wiring connection copper insert is arranged on the printed circuit board and connected to a power connection terminal, and the power connection terminal is electrically connected to the ground wire of the whole machine.

Optionally, for the electrostatic deflector, the electrically conductive member is made of metal.

Optionally, for the electrostatic deflector, the metal comprises copper.

On the other hand, the utility model provides an electric heater. The electric heater comprises the electrostatic flow guiding device.

Compared with the prior art, the utility model discloses the main advantage of technical scheme as follows:

the utility model discloses electric heater and static guiding device thereof introduces the complete machine ground wire with electric charge through increasing electrically conductive ornamental strip or electrically conductive inserted sheet in gap department according to the principle of the little route of electric charge preferred selection impedance, through ground wire to the ground release, prevents that the controller from being damaged by static, provides complete machine antistatic reliability, and electrically conductive device conceals not to influence the outward appearance.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic structural view of an electrostatic current guiding device of an electric heater provided in embodiment 1 of the present invention;

fig. 2 is the utility model provides an embodiment 2 provides an electrostatic current guiding device's of electric heater structural schematic diagram.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The casing of the electric heater, for example, the display front casing, is usually an insulator such as a plastic member, which itself has no conductivity, and when there is an assembly gap in the casing, there is a risk that static electricity may be generated and enter the inside of the casing through the gap to damage the controller inside.

There is a gap in the insulating housing that communicates with the controller atmosphere inside the electric heater. The embodiment of the utility model provides an electrostatic guiding device of electric heater is including the electrically conductive parts that aim at the at least partial length setting in gap on the insulating casing, and electrically conductive parts is connected with the complete machine ground wire electricity of electric heater.

Fig. 1 is the utility model provides an embodiment 1 provides an electrostatic current guiding device's of electric heater structural schematic diagram. As shown in fig. 1, the electrostatic current guiding apparatus of the electric heater provided in embodiment 1 includes a conductive member aligned with at least a partial length of the slot 110 on the insulating housing, and the conductive member is electrically connected to the overall ground 130 of the electric heater. In embodiment 2, the conductive member is a trim strip 120 snapped at the slit 110. As an alternative, a recess is provided along the edge of the insulating housing at the gap 110, and the decorative strip is inserted into the recess, so that the decorative strip 120 is preferentially removed by static electricity as long as the decorative strip 120 is closer to the gap 110 of the insulating housing than the metal components on the controller 140. The trim strip 120 may or may not fill the entire length of the gap 110, as long as the gap 110 is filled in the area near the controller 140.

The trim strip 120 extends along the slit 110 to the intersection of the two walls of the insulating housing and along the line of intersection of the two walls of the insulating housing to the junction 150 with the earth of the complete machine. As an alternative embodiment, the decorative strip 120 extends at the slit 110 to the intersection of the two walls of the insulating housing and along the line of intersection of the two walls of the insulating housing up to below the insulating housing, there being a connection point 150 at the lower end of the insulating housing, to which connection point 150 the overall ground line in the power supply line is connected. In this alternative embodiment, the connection point 150 is disposed at the lower cut-off for convenient routing, and the routing distance of the power line can be reduced. The trim strip 120 may be formed or welded with a U-shaped connecting piece as the connecting point 150, and as an alternative, the trim strip 120 may be formed or welded with a connecting piece of another shape as the connecting point 150, and the power line is inserted into the connecting piece formed or welded on the trim strip 120, so as to complete the electrical connection between the trim strip 120 and the ground wire 130 of the whole machine. When the static electricity test is carried out, the charges are directly led into the ground through the decorative strip 120 and released, and the controller 140 can be effectively prevented from being damaged by the static electricity.

The conductive member may be made of metal. Further, the metal may include copper.

Embodiment 1 of the utility model also provides an electric heater, and this electric heater can include above-mentioned static guiding device.

Fig. 2 is the utility model provides an embodiment 2 provides an electrostatic current guiding device's of electric heater structural schematic diagram. As shown in fig. 2, the electrostatic current guiding apparatus of the electric heater provided in embodiment 2 includes a conductive member aligned with at least a partial length of the slot 210 on the insulating housing, and the conductive member is electrically connected to the overall ground 230 of the electric heater. In embodiment 2, the conductive member is a tab 220 mounted on the controller. Tab 220 is between the controller 240 and slot 210 of the insulated housing and is angled with respect to the plane of the controller 240. In this embodiment, the tab 220 is positioned directly below the slot 210. In this embodiment, the surface of the controller 240 close to the front housing may be 5mm from the front housing, the height of the plane of the blade 220 may be 4.9mm, and the angle between the blade 220 and the plane of the controller 240 is 90 °.

The controller 240 includes a Printed Circuit Board (PCB). The tab 220 is soldered to the printed circuit board. The printed circuit board is provided with a wiring connecting insertion piece 220 to a power supply wiring terminal, and the power supply wiring terminal is electrically connected with a ground wire 230 of the whole machine. When performing the static test, the charge is directly introduced to the ground through the plug 220 and discharged, and the controller 240 can be effectively prevented from being damaged by the static electricity. As an optional implementation mode, the insertion sheet 220 can be welded on a PCB, a power connection terminal is arranged on the PCB, a wire is arranged on the PCB to connect the insertion sheet 220 to the power connection terminal, and the power connection terminal is connected with a whole machine ground wire 230 in a power line.

Embodiment 2 of the utility model also provides an electric heater, and this electric heater can include above-mentioned embodiment 2's static guiding device.

An embodiment of the utility model provides an electric heater and static guiding device thereof increases conductive parts in insulating casing's gap department, introduces the complete machine ground wire with electric charge, avoids static damage controller.

The above mentioned embodiments are only examples of the present invention, and not intended to limit the scope of the claims of the present invention, and all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings of the present invention or directly or indirectly applied to other related technical fields are also included in the scope of the claims of the present invention.

Claims

1. The utility model provides an electrostatic guiding device of electric heater, has the gap on the insulating casing with the inside controller atmosphere intercommunication of electric heater, its characterized in that, electrostatic guiding device is including aiming at the electrically conductive part that at least part length of gap set up, electrically conductive part with the complete machine ground wire electricity of electric heater is connected.

2. The electrostatic deflector of claim 1, wherein the conductive member comprises a trim strip snapped into the gap.

3. The electrostatic deflector of claim 2, wherein the trim strip extends along the gap to the intersection of the walls of the insulating housing and along the line of intersection of the walls of the insulating housing to the junction with the ground of the machine.

4. The electrostatic deflector of claim 1, wherein the conductive member comprises a tab mounted on the controller, the tab being between the controller and the gap and angled with respect to a plane in which the controller lies.

5. The electrostatic deflector of claim 4, wherein the controller comprises a printed circuit board.

6. The electrostatic deflector of claim 5, wherein the tab is soldered to the printed circuit board.

7. The electrostatic dissipative apparatus of claim 5, wherein traces are provided on the printed circuit board to connect the copper inserts to power terminals, the power terminals being electrically connected to a ground of the entire apparatus.

8. The electrostatic deflector of claim 1, wherein the electrically conductive member is made of metal.

9. The electrostatic deflector of claim 8, wherein the metal comprises copper.

10. An electric heater comprising an electrostatic deflector as claimed in any of claims 1-9.