CN214013936U - Discharge device and calibration device thereof, and household appliance controller - Google Patents
Discharge device and calibration device thereof, and household appliance controller Download PDFInfo
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- CN214013936U CN214013936U CN202023299661.9U CN202023299661U CN214013936U CN 214013936 U CN214013936 U CN 214013936U CN 202023299661 U CN202023299661 U CN 202023299661U CN 214013936 U CN214013936 U CN 214013936U
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Abstract
The utility model provides a discharge device and calibration equipment, household electrical appliances controller thereof, discharge device includes the box body, still including locating discharge circuit in the box body to and be used for connecting discharge circuit and the connecting piece of treating discharge device work as the connecting piece intercommunication discharge circuit with when treating discharge device, discharge circuit release treats discharge device in the electric energy of discharge capacitance. Compared with the prior art, the utility model discloses can reduce the quality hidden danger that household electrical appliances controller secondary discharge caused behind the functional test, improve after sales satisfaction, reduce the abnormal analysis cost.
Description
Technical Field
The utility model relates to a household electrical appliances field, especially a discharging device and calibration equipment, household electrical appliances controller thereof.
Background
Generally, an external strong power supply is required when a controller works, and after the controller works normally, a bus filter capacitor in direct current bus voltage of the controller is charged, so that the direct current bus voltage inside the controller is higher than the voltage of the strong power supply, for example, when the voltage of the external power supply of the controller is AC220V, the direct current bus voltage inside the controller is as high as 310V, or when the voltage of the external power supply of the controller is AC380V, the direct current bus voltage inside the controller is as high as 540V. When the controller is powered off, the electric quantity stored by the bus filter capacitor is slowly discharged by the bus filter capacitor, so that the discharge time required by the powered-off controller is mainly related to the bus filter capacitor. Generally, the larger the capacitance value of the bus filter capacitor, the slower the discharge speed of the controller, and the longer the discharge time required. Although reducing the capacitance of the bus filter capacitor can shorten the discharge time, the capacitance of the bus filter capacitor is positively correlated with the power of the controller, and if the capacitance of the bus filter capacitor is reduced to shorten the discharge time of the controller, the control performance of the whole controller will be affected.
Meanwhile, the household appliance controller has the hidden danger of secondary discharge after the function test, so that the damage problem of controller devices and ICT secondary retest equipment is easily caused.
Therefore, it is an urgent technical problem in the art to design a discharge device, a calibration device thereof, and a home appliance controller, so as to discharge the controller without affecting the performance of the controller itself.
SUMMERY OF THE UTILITY MODEL
There is the hidden danger of secondary discharge to the controller after the functional test in prior art, the utility model provides a discharge device and calibration equipment, household electrical appliances controller thereof.
The technical scheme of the utility model for, a discharge device is proposed, including the box body, still including locating discharge circuit in the box body, and be used for connecting discharge circuit and the connecting piece of treating discharge device work as the connecting piece intercommunication discharge circuit with when treating discharge device, discharge circuit release treats discharge capacitor's among the discharge device electric energy.
Further, the connecting piece is a busbar which is arranged on the box body, one side of the busbar, which is close to the device to be discharged, is provided with a socket matched with the thimble of the device to be discharged, and the other side of the busbar is connected with the discharge circuit.
Further, the discharge circuit comprises at least one discharge unit, each discharge unit comprises at least one discharge resistor connected in parallel and switch units connected with the discharge resistors in a one-to-one correspondence manner, and the switch units are turned on when receiving the electric energy released by the device to be discharged.
Further, the switch unit is a relay, the relay comprises an electromagnet and a switch for connecting the discharge resistor and the device to be discharged, and the electromagnet controls the switch to be closed when receiving the electric energy released by the device to be discharged.
Further, the discharge circuit comprises three discharge units, namely a weak current power supply discharge unit, a resistance-capacitance discharge unit, a strong current discharge unit and a communication discharge unit, wherein the weak current power supply discharge unit, the resistance-capacitance discharge unit, the strong current discharge unit and the communication discharge unit are respectively connected with the busbar.
The LED lamp is characterized by further comprising a light-emitting unit connected with the discharging unit, the light-emitting unit is at least one LED lamp connected with the discharging unit, and the light-emitting unit is turned off when the electric energy of the discharging capacitor is released completely.
Further, the resistance value R of the discharge resistor satisfies: u shape2/Imax ≤ R < 2U1 2t/CU2 2；
Wherein U is1Is the minimum discharge voltage, U, of the device to be discharged2Is the power supply voltage, C is the discharge capacitance, t is the minimum discharge time, Imax is the maximum discharge current.
The utility model also provides a calibration equipment for discharge device, discharge device adopts above-mentioned discharge device, calibration equipment is including locating display element on the calibration equipment, calibration equipment with the discharge device electricity is connected, display element is in discharge device is luminous when normal.
Furthermore, the verifying device comprises detection branches which are connected with the discharging units of the discharging device in a one-to-one matching mode, each detection branch is provided with a display unit connected with the detection branch in series, the verifying device further comprises an interface connected with the power supply, and the display units are connected with the power supply of the verifying device and emit light when the discharging units corresponding to the verifying device are normal.
The utility model also provides a household electrical appliances controller, household electrical appliances controller adopts above-mentioned discharge device.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
1. the discharge device discharges to the household appliance controller, so that the quality hidden danger caused by secondary discharge of the household appliance controller after the function test is reduced, the after-sale satisfaction is improved, and the abnormal analysis cost is reduced.
2. The plurality of discharge units are arranged, different discharge units can be connected according to needs, and discharge can be carried out on different discharge points on the controller.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a circuit diagram of a discharge circuit of the discharge device of the present invention;
fig. 2 is a circuit diagram of the calibration apparatus of the present invention.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Thus, a feature indicated in this specification will serve to explain one of the features of an embodiment of the invention, and not to imply that every embodiment of the invention must have the described feature. Further, it should be noted that this specification describes many features. Although some features may be combined to show a possible system design, these features may also be used in other combinations not explicitly described. Thus, the combinations illustrated are not intended to be limiting unless otherwise specified.
The principles and structure of the present invention will be described in detail below with reference to the accompanying drawings and examples.
When the controller works, a bus filter capacitor in the direct-current bus voltage of the controller is charged, the direct-current bus voltage in the controller is higher than the voltage of a strong-current power supply, after the controller is powered off, the electric quantity stored by the bus filter capacitor slowly discharges by the bus filter capacitor, the household appliance controller has the hidden danger of secondary discharge after function test, and the problem of damage to controller devices and ICT secondary retest equipment is easily caused.
In order to solve the above problem, the utility model discloses an idea lies in, provides a discharge device, releases away the electric quantity that the condenser stored in the controller to reduce secondary discharge's hidden danger.
Specifically, the utility model discloses discharge device includes the box body to and locate the discharge circuit in the box body, and locate the connecting piece on the box body, the connecting piece is used for connecting discharge circuit and treats discharge device, after connecting piece intercommunication discharge circuit with treat discharge device, treat that the electric quantity that electric capacity stored can transmit discharge circuit through the connecting piece among the discharge device, and consume the electric quantity wherein through discharge circuit, thereby play the effect of discharging. The utility model discloses treat that discharge device is the household electrical appliances controller for the electric quantity that electric capacity was stored in to the household electrical appliances controller releases, avoids secondary discharge's hidden danger.
Referring to fig. 1, the connector is a female pin, a socket matched with a thimble of the home appliance controller is arranged on one side of the female pin facing the home appliance controller, the other side of the female pin is connected with a discharge circuit in the box body, and after the thimble of the home appliance controller is inserted into the socket, the discharge circuit is electrically connected with the home appliance controller to transmit electric energy to the discharge circuit.
According to the characteristic of electric capacity, when the electric controller outage back, the electric capacity can act as the power, releases away the electric quantity of electric capacity self and supplies the load to use. After the discharge circuit is connected with the household appliance controller, the capacitor starts to release the electric quantity of the capacitor to the discharge circuit, and the electric quantity is consumed through a load in the discharge circuit.
Specifically, the discharge circuit comprises at least one discharge unit, each discharge unit comprises at least one discharge resistor connected in parallel and a switch unit connected with the discharge resistor in a one-to-one correspondence mode, the switch units are conducted when electric energy released by the household appliance controller is received, the electric energy released by the household appliance controller after the conduction can flow through the discharge resistors, and the resistors are load elements and can consume the electric energy in the modes of heat and the like.
Preferably, the utility model discloses in its switch unit adopt the relay, it is connected to the row mother with discharge resistance series connection after, inside switch and the electro-magnet of being equipped with of relay, after the electric energy that the relay received the household electrical appliance controller to release, inside electro-magnet is electrically conductive to with the contact actuation of switch to switching on, thereby switch on discharge resistance and household electrical appliance controller. The relay is adopted, a detection unit does not need to be additionally arranged, and according to the characteristics of the relay, the relay can automatically close the switch when receiving electric energy, and the detection unit does not need to determine whether the electric energy exists and then conduct the switch. Meanwhile, after the electric energy in the household electrical appliance controller is released, the electromagnet in the relay is powered off, the switch is switched off, and the relay can be automatically switched off without manual operation.
For satisfying the discharge of the different modules of household electrical appliances controller, divide into weak current power module, resistance-capacitance module, forceful electric power and communication module etc. like the household electrical appliances controller, the variation in size of electric energy in the different modules, the electric energy that needs the release is also different, the utility model discloses correspond and set up a plurality of discharge units, be weak current power discharge unit, resistance-capacitance discharge unit, forceful electric power and communication discharge unit respectively, correspond weak current power module, resistance-capacitance module, forceful electric power and communication module respectively and discharge. If only the weak current power supply module in the household appliance controller needs to discharge, only the weak current power supply module and the weak current power supply discharging unit need to be connected during connection, and discharging is carried out through the weak current power supply discharging unit. Here, the discharge resistances of the different discharge cells are different, and the resistances are linear elements whose power consumption P = IR2The speed of the electric energy consumed by the resistors is different, if the electric energy in the weak current power supply module is less, the discharging speed can be slower, the resistor is set to be 120 ohms, the discharging requirement can be met, and if the electric quantity of the resistance-capacitance module is more, the discharging speed is higher, the resistor is set to be 820 kilo-ohms, and the discharging unit corresponds to different discharging modules through different discharging units, so that the better discharging effect can be achieved.
The connection mode of the discharge resistors can be 1 or 2 in series connection, 2 in parallel connection and the like, and the total resistance of the series connection is R = R1+R2Total resistance in parallel of R = R1*R2/（R1+R2) And 2 resistors are connected in series or in parallel, so that the corresponding resistor size can be obtained according to actual requirements.
Preferably, in order to facilitate a user to directly observe whether the electric energy in the controller is completely released, a light emitting unit is further arranged on the box body, the light emitting unit is connected with the discharging unit, the discharging units are connected with the same light emitting unit, it is known from the foregoing description that when the electric energy is released by the household electrical appliance controller, the relays in the discharging unit are turned on, and after the electric energy is completely released in the household electrical appliance controller, the relays in the discharging unit are turned off, and it can be found that only after the discharging units are connected with the light emitting unit, the light emitting unit is turned off after all the relays in all the discharging units are turned off, and if one discharging unit is on, the light emitting unit is turned on through the discharging unit to emit light. Therefore, only when all the discharge units are disconnected, namely the electric energy in the household appliance controller is completely released, the light-emitting unit can be closed, and when a user uses the household appliance controller, whether the electric energy in the household appliance controller is completely released can be intuitively determined according to the display of the light-emitting unit. Here, the light emitting unit may be any light emitting element that achieves a display effect, such as an LED or a small bulb.
The following is to the utility model discloses discharge resistance's size analysis, according to discharge requirement and in-service use safety, the discharge device during operation, the discharge current peak value is less than 500mA, and discharge time is greater than 200ms and is less than 1s, carries out the analysis to voltage more than 3V's power point (need the power electricity of discharging promptly). The weak current power supply discharge unit is analyzed, the weak current power supply is 5V, and the specification of an internal discharge capacitor (namely, a capacitor needing to be discharged) is 1000 uf/35V. Firstly, the electric energy stored in the capacitor is W = CU according to an electric energy calculation formula of the capacitor2 2And/2, setting the discharge time as T, and obtaining the power P = W/T = CU of the discharge resistor discharging electric energy2 22T, power formula P = IU according to resistance1=U1 2The resistance value of the discharge resistor is R =2U1 2T/CU2 2Here, U1For minimum discharge voltage of the controller, U2Is the supply voltage and C is the discharge capacitance.
In order to make the discharge resistance meet the discharge time requirement, the discharge resistance is required to be smaller than the resistance at the minimum discharge time t, and R =2U1 2t/CU2 2And (= 2 × 3V × 0.2s/(0.001f × 5V) =144 Ω), wherein the resistor is the maximum resistance value of the discharge resistor. It can be known from ohm's law that the smaller the resistance, the larger the current in the circuitTo meet the current requirement in the circuit (if the resistance is infinitely reduced, the current exceeds the allowable current), the resistance should have a minimum value. From ohm's law R = U/I, it is known that the magnitude of the resistor R is inversely proportional to the current I when the power supply U is constant at 5V, and that the peak value of the discharge current is less than 500mA according to the discharge requirement and the practical safety, so that the current in the circuit cannot exceed 0.5A at the maximum, and it is known that the minimum value of the discharge resistor R = U/I at this time2and/Imax =5V/0.5A =10 Ω, wherein Imax is the maximum discharge current in the circuit.
According to the calculation, the condition that the value range of the resistor in the weak current power supply discharge unit should meet the condition of U can be determined2/Imax ≤ R < 2U1 2t/CU2 2I.e. 10 Ω. ltoreq.R<144 Ω, in the utility model discloses in, select the resistance that is close to 144 Ω according to the specification of cement resistance, confirm that the resistance model is 120 Ω/10W.
Similarly, the discharge resistance types of other mainboard circuits can be determined, the current controller mainly needs discharge points including a switching power supply module, a variable frequency direct current bus voltage DC, a low voltage direct current 5V, 12V and 15V, a direct current fan (special), a resistance-capacitance module, a communication circuit filter capacitor and the like, different discharge resistance types are selected in the discharge circuit according to the discharge capacitor specifications, and the overall type selection condition is shown in the following table:
for confirming the utility model discloses discharge device's validity still need carry out the check-up between carrying out discharge device, to this, the utility model discloses still provide a household electrical appliances controller discharge device's calibration equipment, this calibration equipment is used for showing the validity of discharge unit.
Referring to fig. 2, the verifying unit includes a bus bar matched with the discharging device, and a plurality of display units electrically connected with the discharging device through the bus bar, the display units emitting light when the discharging unit is normal. Specifically, it can be seen that the utility model discloses the verifying attachment is equipped with 12 display element, it is connected respectively at row female 2, 3, 4, 5, 7, 8, 9, 11, 18, 20, 22, 24 feet, can see according to fig. 1, luminous element also is connected to row female 2 respectively, 3, 4, 5, 7, 8, 9, 11, 18, 20, 22, 24 feet, after being connected with discharge apparatus through row female with verifying attachment, can realize display element and each branch road one-to-one accordant connection of discharge element, verifying attachment's 13, 15 feet are external power supply respectively, accomplish the connecting back of verifying attachment and discharge apparatus, power on for the verifying attachment, the electric energy can flow into in the discharge element through the verifying attachment, the relay among the discharge element switches on, form the return circuit, the display element is luminous, this way luminous element is normal. If the display unit connected with the 4 pins does not emit light, the fault in the discharge unit connected with the 4 pins can be judged, and whether the discharge unit is normal or not and which specific fault is determined can be quickly judged according to the light emitting state of the display unit.
In this embodiment, the display unit is an LED lamp or a small bulb, which is disposed on the box body of the calibration device, and is labeled to correspond to different discharge units, respectively.
The utility model discloses an operating principle does, the household electrical appliances controller power of disconnection after the completion of household electrical appliances controller function test, because electric capacity can be stored in the household electrical appliances controller electric energy, be connected the back with discharge device and household electrical appliances controller, electric capacity can release the electric energy, the inside relay of discharge device is because a voltage has been applyed between both ends this moment, let the contact actuation of relay internal switch on, discharge resistance work consumption discharge point residual voltage in the discharge circuit, when the residual electricity on the mainboard is not more than 3V, or when the highest residual electricity is not more than the lower limit value of main chip operating voltage on this board, accomplish and discharge, the luminescence unit extinguishes, the electric current disappears this moment, the inside contact of relay is loosened and is got back to initial condition. When the device is used, verification is needed to ensure the validity of the device, the discharge device and the verification device are connected, the judgment is carried out according to the light-emitting state of a bulb of the verification device, if the bulb is fully bright, the connection inside each loop of the discharge circuit is normal, and the discharge circuit can be used for discharging.
The above device is not limited to small appliance controllers, and is applicable to all industries applying to controllers. Meanwhile, auxiliary testing and checking of the pneumatic linkage device can be added.
The utility model also provides a household electrical appliances controller, household electrical appliances controller adopts above-mentioned discharge device, be equipped with the plug that matches with the discharge device connecting piece on the household electrical appliances controller, preferably, its plug adopts the thimble.
Compared with the prior art, the utility model discloses a discharge device discharges to the household electrical appliances controller, has reduced the quality hidden danger that the secondary discharge caused behind the functional test of household electrical appliances controller, has improved after sales satisfaction, has reduced unusual analysis cost. The plurality of discharge units are arranged, different discharge units can be connected according to needs, and different discharge electricity on the controller can be discharged.
The above is only the part or the preferred embodiment of the present invention, no matter the characters or the drawings can not limit the protection scope of the present invention, all under the whole concept of the present invention, the equivalent structure transformation performed by the contents of the specification and the drawings is utilized, or the direct/indirect application in other related technical fields is included in the protection scope of the present invention.
Claims (10)
1. The discharging device comprises a box body and is characterized by further comprising a discharging circuit arranged in the box body and a connecting piece used for connecting the discharging circuit with the device to be discharged, and when the connecting piece is communicated with the discharging circuit and the device to be discharged, the discharging circuit releases electric energy of a discharging capacitor in the device to be discharged.
2. The discharging device as claimed in claim 1, wherein the connecting member is a row of nuts, the row of nuts is disposed on the box body, a socket matched with the thimble of the discharging device is disposed on one side of the row of nuts close to the discharging device, and the other side of the row of nuts is connected to the discharging circuit.
3. The discharging device according to claim 2, wherein the discharging circuit comprises at least one discharging unit, each discharging unit comprises at least one discharging resistor connected in parallel and a switching unit connected with the discharging resistors in a one-to-one correspondence, and the switching unit is turned on when receiving the electric energy released by the device to be discharged.
4. The discharging device according to claim 3, wherein the switching unit is a relay including an electromagnet and a switch connecting the discharging resistor and the device to be discharged, the electromagnet controlling the switch to be closed upon receiving the electric power released from the device to be discharged.
5. The discharging device according to claim 3, wherein the discharging circuit comprises three discharging units, namely a weak current power supply discharging unit, a resistance-capacitance discharging unit, a strong current discharging unit and a communication discharging unit, and the weak current power supply discharging unit, the resistance-capacitance discharging unit, the strong current discharging unit and the communication discharging unit are respectively connected with the busbar.
6. The discharging device according to claim 3, further comprising a light emitting unit connected to the discharging unit, wherein the light emitting unit is at least one LED lamp connected to the discharging unit, and the light emitting unit is turned off when the discharging of the electric energy from the discharging capacitor is completed.
7. The discharge device according to claim 3, wherein a resistance value R of the discharge resistor satisfies: u shape2/Imax ≤ R < 2U1 2t/CU2 2；
Wherein U is1Is the minimum discharge voltage, U, of the device to be discharged2Is the power supply voltage, C is the discharge capacitance, t is the minimum discharge time, Imax is the maximum discharge current.
8. A verification device for a discharge device, wherein the discharge device is the discharge device according to claims 1 to 7, the verification device includes a display unit provided on the verification device, the verification device is electrically connected to the discharge device, and the display unit emits light when the discharge device is normal.
9. The verification device according to claim 8, wherein the verification device comprises detection branches connected with the discharge units of the discharge device in a one-to-one matching manner, each detection branch is provided with a display unit connected in series with the detection branch, and the verification device further comprises an interface connected with a power supply, and the display unit emits light when the verification device is connected with the power supply and the corresponding discharge unit is normal.
10. The household electrical appliance controller is characterized in that the household electrical appliance controller adopts the discharge device as claimed in any one of claims 1 to 7, and a plug matched with the connecting piece is arranged on the household electrical appliance controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023299661.9U CN214013936U (en) | 2020-12-31 | 2020-12-31 | Discharge device and calibration device thereof, and household appliance controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023299661.9U CN214013936U (en) | 2020-12-31 | 2020-12-31 | Discharge device and calibration device thereof, and household appliance controller |
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| CN214013936U true CN214013936U (en) | 2021-08-20 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023193583A1 (en) * | 2022-04-07 | 2023-10-12 | 安徽威灵汽车部件有限公司 | Parameter determination method for discharge resistors between direct-current buses, and related apparatus |
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2020
- 2020-12-31 CN CN202023299661.9U patent/CN214013936U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023193583A1 (en) * | 2022-04-07 | 2023-10-12 | 安徽威灵汽车部件有限公司 | Parameter determination method for discharge resistors between direct-current buses, and related apparatus |
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