CN216209500U - Aging test box signal control device, aging test box and test cabinet - Google Patents
Aging test box signal control device, aging test box and test cabinet Download PDFInfo
- Publication number
- CN216209500U CN216209500U CN202121551624.4U CN202121551624U CN216209500U CN 216209500 U CN216209500 U CN 216209500U CN 202121551624 U CN202121551624 U CN 202121551624U CN 216209500 U CN216209500 U CN 216209500U
- Authority
- CN
- China
- Prior art keywords
- signal
- control device
- controller
- power supply
- signal control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Testing Of Individual Semiconductor Devices (AREA)
Abstract
The embodiment of the utility model discloses a signal control device of an aging test chamber, the aging test chamber and a test cabinet, wherein in a specific embodiment, the test chamber comprises a chamber body with a chamber door and an electric appliance arranged in the chamber body, and the signal control device comprises a proximity switch, a power switch and a controller, wherein the proximity switch senses the closing state of the chamber door and outputs a first signal, and the proximity switch senses the opening state of the chamber door and outputs a second signal; the power switch is coupled between the power supply and the electrical appliance; the controller outputs an enable signal enabling the power switch according to a first signal from the proximity switch.
Description
Technical Field
The present invention relates to the field of control. And more particularly, to a signal control apparatus of a burn-in test chamber, a burn-in test chamber and a test cabinet.
Background
The aging test box is used for aging test of electronic products, in the field of display panel detection, a display panel is usually lighted in the aging test box for lighting aging test, the high and low levels of electrical appliances are switched through a power switch to realize the output and disconnection of lighting signals, a box door is suddenly opened in a normal production lighting mode, and the products are still in a lighting state and have risks of damage and illegal operation on the products.
Disclosure of Invention
In view of the above, a first aspect of the present invention provides a signal control apparatus for a burn-in test chamber, the test chamber including a chamber body having a chamber door and an electrical appliance disposed in the chamber body, the signal control apparatus including a proximity switch, a power switch and a controller,
the proximity switch senses the closing state of the box door and outputs a first signal, and the proximity switch senses the opening state of the box door and outputs a second signal;
the power switch is coupled between the power supply and the electrical appliance;
the controller outputs an enable signal enabling the power switch according to a first signal from the proximity switch.
In one embodiment, the controller outputs an off signal to the power switch based on the second signal from the proximity switch.
In a specific embodiment, the test chamber includes a plurality of electrical appliances, the signal control device includes a plurality of controllers and a plurality of power switches respectively connected to the plurality of controllers, the controller includes a first signal transmission terminal for transmitting the first signal and the second signal, and the first signal transmission terminals of the plurality of controllers are connected in series.
In one embodiment, the proximity switch is a magnetic type proximity switch.
In one embodiment, the controller further outputs a switching signal to the power switch.
In one embodiment, the controller includes a power supply terminal, the power supply is connected to the power supply terminal, and the power switch is coupled between the power supply terminal and the electrical appliance.
In a specific embodiment, the test chamber comprises a plurality of electrical appliances, the signal control device comprises a plurality of controllers and a plurality of power switches respectively connected with the plurality of controllers, power supply ends of the plurality of controllers are connected in series, and the power supply is connected to a power supply end of a controller.
The second aspect of the utility model provides an aging test chamber, which comprises a chamber body with a chamber door, an electrical appliance arranged in the chamber body, and a signal control device provided by the first aspect of the utility model.
The aging test cabinet provided by the third aspect of the utility model comprises a cabinet body and a plurality of aging test boxes provided by the second aspect of the utility model which are arranged in a stacked mode.
The utility model has the following beneficial effects:
the utility model has the advantages of intellectualization, automation and accurate control, improves the safety and avoids the product damage.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 shows a structure of a signal control device of a burn-in test chamber according to an embodiment of the present invention.
Fig. 2 is a block diagram of another burn-in test chamber signal control apparatus according to an embodiment of the present invention.
Fig. 3 shows a structure diagram of a burn-in test cabinet according to an embodiment of the present invention.
Detailed Description
In order to more clearly illustrate the utility model, the utility model is further described below with reference to preferred embodiments and the accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and is not to be taken as limiting the scope of the utility model.
As shown in fig. 1, a first embodiment of the present invention provides a signal control apparatus of a burn-in test chamber, the test chamber including a chamber body having a chamber door and an electrical appliance 140 disposed in the chamber body, the signal control apparatus including a proximity switch 110, a power switch 120, and a controller 130, wherein,
the proximity switch 110 senses the door closed state and outputs a first signal, and the proximity switch 110 senses the door open state and outputs a second signal; in one embodiment, the proximity switch 110 is, for example, a magnetic type proximity switch including a switch portion installed on the swing door and a magnet portion installed on a door frame opposite to the swing door.
The power switch 120 is coupled between the power source 150 and the electrical consumer 140; the on/off state of the power switch 120 may be controlled by a user manually operating a key, or may be controlled by a device such as a controller transmitting a switching signal.
The controller 130 outputs an enable signal enabling the power switch according to the first signal from the proximity switch 110. The enabling signal enables the power switch to be in a working state, and the power switch can be switched on and off according to a switching signal determined by the set switch key or a switching signal sent by devices such as a controller and the like, so that the power supply can supply power to an electrical appliance or not supply power to the electrical appliance.
Further, the controller outputs a turn-off signal to the power switch according to a second signal from the proximity switch. The off signal is opposite to the enable signal, so that the power switch is in a forced off state, the electrical connection between the power source 150 and the electrical appliance 140 is in an off state, and the power supply 150 stops supplying power to the electrical appliance 140. Even if the power switch receives an on signal, it is in an "off" state, for example, the user cannot turn on the power by pressing the switch button at this time.
As shown in fig. 1, the test chamber includes a plurality of electrical appliances 140, the signal control device includes a plurality of controllers and a plurality of power switches respectively connected to the plurality of controllers, the controllers include first signal transmission terminals 134 for transmitting the first and second signals, and the first signal transmission terminals 134 of the plurality of controllers are connected in series.
For example, the control device includes N controllers 130 connected in series, the first signal transmission terminal 134 of the 1 st controller 130 is connected to the proximity switch 110, the first signal transmission terminal 134 of the nth controller 130 is connected to the first signal transmission terminal 134 of the (N-1) th controller 130, N is an integer greater than 1, and 1 < N ≦ N.
Referring to fig. 1, n is 4, the first signal transmission end 134 of the 1 st controller 130 is connected to the proximity switch 110, the first signal transmission end 134 of the 2 nd controller 130 is connected to the first signal transmission end 134 of the 1 st controller 130, the first signal transmission end 134 of the 3 rd controller 130 is connected to the first signal transmission end 134 of the 2 nd controller 130, the first signal transmission end 134 of the 4 th controller 130 is connected to the first signal transmission end 134 of the 3 rd controller 130, and so on, only one controller 130 is required to be connected to the proximity switch 110, and the other controllers are connected in series through the first signal transmission ends 134.
In the embodiment shown in fig. 2, the controller includes a power supply terminal 132, the power supply 150 is connected to the power supply terminal 132, and the power switch 120 is coupled between the power supply terminal 132 and the electrical consumer 140.
The test box comprises a plurality of electric appliances 140, the signal control device comprises a plurality of controllers 130 and a plurality of power switches 120 respectively connected with the controllers, power supply terminals 132 of the controllers are connected in series, and the power supply 150 is connected to the power supply terminal 132 of one controller.
For example, the control device includes N controllers 130 connected in series, the power supply terminal 132 of the 1 st controller 130 obtains power supply by connecting the power supply 150, and the power supply terminal 132 of the nth controller 130 is connected to the power supply terminal 132 of the (N-1) th controller 130. N is an integer greater than 1, and N is greater than 1 and less than or equal to N.
The power supply terminal 132 of the 1 st controller 130 obtains power supply by being connected to the power supply 150, the power supply terminal 132 of the 2 nd controller 130 is connected to the power supply terminal 132 of the 1 st controller 130, the power supply terminal 132 of the 3 rd controller 130 is connected to the power supply terminal 132 of the 2 nd controller 130, and the power supply terminal 132 of the 4 th controller 130 is connected to the power supply terminal 132 of the 3 rd controller 130.
The controller 130 further includes a second signal transmission terminal 131 for transmitting an enable signal or a turn-off signal to the switching power supply 120 or a switching signal for controlling the power supply switch 120 in an enabled state.
The plurality of controllers 130 may be disposed on one or more substrates.
In one example, the electrical consumer may be a light emitting source or a heat source.
Taking a product lighting test (using an electrical appliance as a light source) performed by the aging test chamber as an example, the operation mode of the signal control device will be described with reference to fig. 1:
the first mode is as follows: when the door is closed, the power switch 120 is turned on or off
If the electrical appliance 140 is not turned on and the door is closed, the controller 130 can output an enable signal for enabling the power switch 120 according to a first signal generated by the proximity switch 110 in the door closed state, and at the moment, the power switch 120 is turned on, so that the power 150 is communicated with the electrical appliance 140 to turn on the product; when the power switch 120 is turned off, the power supply and the electrical appliance are disconnected, and the lighting operation of the product is stopped.
And a second mode: when the door is opened, the operation of the power switch 120 is disabled
If the electrical appliance 140 is not lighted and the door is opened, the controller 130 cannot output the enable signal of the enable power switch 120, and the controller 130 generates a disconnection signal according to a second signal generated by the proximity switch in the door opening state to control the forced disconnection between the power 150 and the electrical appliance 140, and at this time, the power 150 and the electrical appliance 140 are disconnected no matter the power switch 120 is opened or closed, and the product cannot be lighted.
Secondly, if the electrical appliance 140 is in the lighting operation state, and if the door is suddenly opened, the controller 130 generates a disconnection signal according to a second signal generated by the proximity switch 110 in the door opening state to control the connection between the power supply 150 and the electrical appliance 140 to be forcibly disconnected, and the lighting operation of the product is stopped. And then the box door is closed, so that the risks of damage and illegal operation to the product are avoided.
The lighting states of the plurality of electrical appliances are consistent.
The aging test box signal control device provided by the utility model has the advantages of intelligence, automation and accurate control, improves the safety, avoids product damage and improves the integrity.
As shown in fig. 3, a second embodiment of the utility model provides a burn-in test cabinet, which includes a cabinet body and burn-in test chambers stacked in layers. The aging test chamber comprises a chamber body with a chamber door, an electric appliance arranged in the chamber body and a signal control device provided by the first embodiment of the utility model. Wherein the weathering test chamber of each layer operates independently.
In one example, a master switch (not shown) may be disposed on the cabinet for each layer of the burn-in test chamber for supplying a switching signal to a plurality of power switches in the burn-in test chamber.
The proximity switch 110 on each door sends a first signal to the controller in the test chamber according to the open state of the corresponding door or a second signal to the controller in the test chamber according to the closed state of the door.
The controller outputs an enable signal enabling the power switch according to the first signal from the proximity switch 110. The enabling signal enables the power switch to be in a working state, and the power switch can be switched on and off according to a switching signal determined by the set switch key or a switching signal sent by devices such as a controller and the like, so that the power supply can supply power to an electrical appliance or not supply power to the electrical appliance.
Further, the controller outputs a turn-off signal to the power switch according to a second signal from the proximity switch. The disconnection signal is opposite to the enabling signal, so that the power switch is in a forced disconnection state, the electric connection between the power supply and the electrical appliance is in a disconnection state, and the power supply to the electrical appliance is stopped. Even if the power switch receives an on signal, it is in an "off" state, for example, the user cannot turn on the power by pressing the switch button at this time.
The embodiment of the utility model has the advantages of intellectualization, automation and accurate control; the safety is improved, the product damage is avoided, and the overall performance is improved.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it will be obvious to those skilled in the art that other variations or modifications may be made on the basis of the above description, and all embodiments may not be exhaustive, and all obvious variations or modifications may be included within the scope of the present invention.
Claims (9)
1. A signal control device of an aging test chamber, the test chamber comprises a chamber body with a chamber door and an electric appliance arranged in the chamber body, the signal control device is characterized in that the signal control device comprises a proximity switch, a power switch and a controller, wherein,
the proximity switch senses the closing state of the box door and outputs a first signal, and the proximity switch senses the opening state of the box door and outputs a second signal;
the power switch is coupled between the power supply and the electrical appliance;
the controller outputs an enable signal enabling the power switch according to a first signal from the proximity switch.
2. Signal control device according to claim 1,
the controller outputs a turn-off signal to the power switch according to a second signal from the proximity switch.
3. The signal control device according to claim 1, wherein the test chamber comprises a plurality of electrical appliances, the signal control device comprises a plurality of controllers and a plurality of power switches respectively connected with the plurality of controllers, the controllers comprise first signal transmission terminals for transmitting the first signal and the second signal, and the first signal transmission terminals of the plurality of controllers are connected in series.
4. The signal control device of claim 1, wherein the proximity switch is a magnetic type proximity switch.
5. The signal control device of claim 1, wherein the controller further outputs a switching signal to the power switch.
6. The signal control device of claim 1, wherein the controller comprises a power supply terminal, the power supply is connected to the power supply terminal, and the power switch is coupled between the power supply terminal and the electrical appliance.
7. The signal control device of claim 6, wherein the test chamber comprises a plurality of electrical appliances, the signal control device comprises a plurality of controllers and a plurality of power switches respectively connected with the plurality of controllers, power supply terminals of the plurality of controllers are connected in series, and the power supply is connected to a power supply terminal of a controller.
8. An aging test chamber, comprising a chamber body with a chamber door and an electrical appliance placed in the chamber body, characterized by further comprising the signal control device according to any one of claims 1 to 7.
9. A weathering test cabinet comprising a cabinet body and a plurality of the weathering test chambers of claim 8 stacked one on top of the other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121551624.4U CN216209500U (en) | 2021-07-08 | 2021-07-08 | Aging test box signal control device, aging test box and test cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121551624.4U CN216209500U (en) | 2021-07-08 | 2021-07-08 | Aging test box signal control device, aging test box and test cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216209500U true CN216209500U (en) | 2022-04-05 |
Family
ID=80894464
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121551624.4U Active CN216209500U (en) | 2021-07-08 | 2021-07-08 | Aging test box signal control device, aging test box and test cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216209500U (en) |
-
2021
- 2021-07-08 CN CN202121551624.4U patent/CN216209500U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203799201U (en) | Power supply control device | |
| CN107112052B (en) | Load isolation for pad signal monitoring | |
| CA2080052A1 (en) | Appliance control system providing out-of-context usage | |
| CN101888120B (en) | Smart switch | |
| CN101282591B (en) | Buzzer driving circuit | |
| WO2012015246A9 (en) | Switch for preventing inrush current shock and cutting off standby power | |
| US8093969B2 (en) | Low-power numerically controlled contactor and control system made of the contactors | |
| CN216209500U (en) | Aging test box signal control device, aging test box and test cabinet | |
| CN101582550B (en) | Master-slave type socket system | |
| CN202696570U (en) | Energy-efficient intelligent switch without relay | |
| CN107845519B (en) | Double power supply automatic transfer switch and its control method | |
| AU6269500A (en) | Electric appliance comprising a power supply unit, a transformer power supply unit, and a control card for an electric appliance | |
| CN101924305B (en) | Master-slave mode socket device with sequence control | |
| CN108388143A (en) | A kind of intelligent panel switch and intelligent domestic system with mechanical switch | |
| EP3772157B1 (en) | Switch device | |
| CN203607336U (en) | Relay contact control device and equipment | |
| CN106383544B (en) | SSR controller and its control method of the exchange 24V switches with the type that is galvanically isolated | |
| CN207368450U (en) | A kind of ring main unit for possessing linear quadratic control | |
| CN205666198U (en) | Support manually and intelligent air switch automatic control | |
| CN212874301U (en) | Hybrid switch and accessory module | |
| CN217880075U (en) | Double-electric control equipment simulation device | |
| CN217641142U (en) | Remote-control electronic energy-saving safety switch | |
| CN217882456U (en) | Novel hour control box | |
| CN109884926B (en) | Electric appliance control device, intelligent electric appliance and electric appliance control method | |
| CN104701083A (en) | Relay contact control method, relay contact control device and relay contact control equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |