Wireless downloading circuit, control device and range hood applying wireless downloading circuit and control device

Abstract

The utility model relates to the technical field of circuits, in particular to a wireless downloading circuit and a range hood applying the same. The wireless downloading circuit comprises a wireless module, a first mode switching circuit, a second mode switching circuit and a control unit; the wireless module comprises a first signal output interface and a first signal input interface; the control unit comprises a second signal output interface, a second signal input interface, a first downloading interface and a second downloading interface; the first mode switching circuit comprises a first input end and a plurality of first output ends; the first signal output interface, the second signal input interface and the first downloading interface are respectively connected with the corresponding first output ends; the second mode switching circuit comprises a second input end and a plurality of second output ends; and the first signal input interface, the second signal output interface and the second downloading interface are respectively connected with the corresponding second output ends. The wireless downloading circuit provided by the utility model improves the convenience of updating and upgrading software functions in the control unit.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit technical field, especially relate to a wireless download circuit and the range hood of application thereof. BACKGROUND

[0002] In the production process of the range hood, the control program needs to be burned into the control unit, so that the operation control of the range hood can be realized based on the control unit subsequently.

[0003] However, when the software function in the control unit is modified subsequently, the program needs to be downloaded to the control unit again through the combination of the computer and the downloader to achieve the purpose of modifying the software function, which makes the modification of the program very cumbersome, and if the range hood has been delivered to the user's home, it is more inconvenient to optimize and modify the software function. UTILITY MODEL CONTENTS

[0004] To solve the above technical problems, the application discloses a wireless download circuit, which comprises a wireless module, a first mode switching circuit, a second mode switching circuit and a control unit.

[0005] The wireless module comprises a first signal output interface and a first signal input interface.

[0006] The control unit comprises a second signal output interface, a second signal input interface, a first download interface and a second download interface.

[0007] The first mode switching circuit comprises a first input end and a plurality of first output ends; the first signal output interface, the second signal input interface and the first download interface are connected with the corresponding first output ends respectively.

[0008] The second mode switching circuit comprises a second input end and a plurality of second output ends; the first signal input interface, the second signal output interface and the second download interface are connected with the corresponding second output ends respectively.

[0009] The first input end and the second input end are connected with a signal output device respectively.

[0010] Optionally, the first mode switching circuit further comprises a first sub-switching circuit and a second sub-switching circuit connected in parallel.

[0011] The first sub-switching circuit comprises a first triode, a first switch and two first output ends.

[0012] The base of the first transistor is connected with the first input end, and the collector of the first transistor is connected with the first switch; the first switch comprises two first output ends, one first output end of the first switch is connected with the first signal output interface, and the other first output end of the first switch is connected with the first signal input interface; the emitter of the first transistor is grounded;

[0013] The second sub-switching circuit comprises a second transistor, a second switch and two first output ends;

[0014] The base of the second transistor is connected with the first input end, and the collector of the second transistor is connected with the second switch; the second switch comprises two first output ends, one first output end of the second switch is connected with the first signal output interface, and the other first output end of the second switch is connected with the first download interface; the emitter of the second transistor is grounded;

[0015] The first transistor and the second transistor are transistors with opposite polarities.

[0016] Optionally, the first switch and the second switch are relay switches.

[0017] Optionally, when the first input end inputs a first level value, the first signal output interface and the second signal input interface are turned on;

[0018] When the first input end inputs a second level value, the first signal output interface and the first download interface are turned on; the first level value and the second level value are not equal.

[0019] Optionally, the first mode switching circuit further comprises a first resistor;

[0020] The input end of the first resistor is connected with the first input end, and the output end of the first resistor is connected with the base of the first transistor and the base of the second transistor.

[0021] Optionally, the second mode switching circuit further comprises a third sub-switching circuit and a fourth sub-switching circuit in parallel;

[0022] The third sub-switching circuit comprises a third transistor, a third switch and two first output ends;

[0023] The base of the third triode is connected with the second input end, and the collector of the third triode is connected with the third switch; the third switch comprises two second output ends, one second output end of the third switch is connected with the first signal input interface, and the other second output end of the third switch is connected with the second signal output interface; and the emitter of the third triode is grounded.

[0024] The fourth sub-switching circuit comprises a fourth triode, a fourth switch and two first output ends.

[0025] The base of the fourth triode is connected with the first input end, and the collector of the fourth triode is connected with the fourth switch; the fourth switch comprises two second output ends, one second output end of the fourth switch is connected with the first signal input interface, and the other second output end of the fourth switch is connected with the second download interface; and the emitter of the fourth triode is grounded.

[0026] The third triode and the fourth triode are transistors with opposite polarities.

[0027] Optionally, when the second input end inputs a first level value, the first signal input interface and the second signal output interface are turned on.

[0028] When the second input end inputs a second level value, the first signal input interface and the second download interface are turned on; and the first level value and the second level value are not equal.

[0029] Optionally, the first mode switching circuit further comprises a second resistor.

[0030] The input end of the second resistor is connected with the second input end, and the output end of the second resistor is connected with the base of the third triode and the base of the fourth triode.

[0031] In another aspect, the application further discloses a control device comprising the wireless download circuit and the signal output device.

[0032] In another aspect, the application further discloses a range hood comprising the control device.

[0033] By adopting the technical scheme, the wireless download circuit provided by the application has the following beneficial effects:

[0034] The wireless download circuit comprises a wireless module, a first mode switching circuit, a second mode switching circuit and a control unit; the wireless module comprises a first signal output interface and a first signal input interface; the control unit comprises a second signal output interface, a second signal input interface, a first download interface and a second download interface; the first mode switching circuit comprises a first input end and a plurality of first output ends; the first signal output interface, the second signal input interface and the first download interface are connected with corresponding first output ends respectively; the second mode switching circuit comprises a second input end and a plurality of second output ends; the first signal input interface, the second signal output interface and the second download interface are connected with corresponding second output ends respectively; the first input end and the second input end are connected with a signal output device respectively. In this way, by arranging the mode switching circuits between the wireless module and the control unit, the data transmission between the wireless module and the control unit and the switching of the wireless download mode can be realized, and the updating and upgrading of the program of the control unit under the wireless communication condition is facilitated, that is, the convenience of updating and upgrading the software function in the control unit is improved. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0036] Figure 1 Structure diagram of an exemplary wireless download circuit of the present application;

[0037] Figure 2 Structure diagram of another exemplary wireless download circuit of the present application;

[0038] Figure 3 Structure diagram of an exemplary first mode switching circuit of the present application;

[0039] Figure 4 Structure diagram of an exemplary second mode switching circuit of the present application. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present application.

[0041] The terms "one embodiment" or "an embodiment" as may appear herein are intended to mean that a particular feature, structure, or characteristic described herein is included in at least one implementation of the present application. Therefore, use of the term "in one embodiment" or "in an embodiment" in various places throughout this specification can speak to the same or similar implementations or features. The terms "first," "second," "third," etc. can be used herein to describe various elements, but the elements should not be limited by these terms. The terms "first," "second," "third," and so forth are generally only used to distinguish between two or more elements, and do not imply a particular order or order of use. The terms "comprises," "comprising," "includes," "including," "contains," "containing," "consists," "consisting," "by," "of," and the like can be used herein and are intended to be equivalent to the term "comprising," and thus do not preclude the addition of further features, structures, or steps.

[0042] When a range of values is disclosed herein, the range is to be considered as having been set forth with the minimum and maximum values of the range, and every value within the range. Further, when a range is disclosed to include integers, the range is intended to include every integer within the range. Also, when a range of values is provided, it is intended to include every value within the range, unless the context clearly dictates otherwise. For example, a range of "1 to 10" is intended to include any and all sub-ranges of the same, for example, 1 to 6.1, 3.5 to 7.8, 5.5 to 10, etc. In other words, unless expressly stated to the contrary, any range of values disclosed herein is intended to include any and all sub-ranges of the same.

[0043] Referring to Figure 1 and Figure 2 , Figure 1 a structure diagram of an exemplary wireless download circuit of the present application; Figure 2Figure 1 is a structural diagram of an exemplary wireless download circuit. In one aspect, the present application discloses a wireless download circuit, which comprises a wireless module, a first mode switching circuit, a second mode switching circuit, and a control unit; the wireless module comprises a first signal output interface B and a first signal input interface E; the control unit comprises a second signal output interface F, a second signal input interface C, a first download interface D, and a second download interface G; the first mode switching circuit comprises a first input end A1 and a plurality of first output ends M1; the first signal output interface B, the second signal input interface C, and the first download interface D are connected to the corresponding first output ends M1 respectively; the second mode switching circuit comprises a second input end A2 and a plurality of second output ends M2; the first signal input interface E, the second signal output interface F, and the second download interface G are connected to the corresponding second output ends M2 respectively; the first input end A1 and the second input end A2 are connected to a signal output device.

[0044] In the embodiment of the present application, by setting two mode switching circuits between the wireless module and the control unit, the serial port communication between the wireless module and the control unit and the switching of the wireless download mode can be realized, which facilitates the relevant personnel to update the program in the control unit in time, and the redundantly set download ports can also improve the download flux and the reliability of the wireless download circuit.

[0045] Exemplarily, the wireless module can be a WIFI module, and the control unit can be a data processing device in the equipment, such as a single-chip microcomputer. The wireless module can be arranged on the single-chip microcomputer. The signal output device can be a separate device or a device integrated in the control unit, which is used to output a required level, such as a high level or a low level. The high level can be specifically a level greater than a preset level, and the low level can be a level lower than the preset level. For example, if the preset level is 3V, the high level can be greater than 3V, specifically 4V or 5V, and the low level can be less than 3V, specifically 2V or 1V.

[0046] Please continue to refer to Figure 2 , the first signal output interface B can also be represented as TXD1, the first signal input interface E can also be represented as RXD1, the second signal output interface F can also be represented as TXD2, the second signal input interface C can also be represented as RXD2, the voltage input end ADD1 of the wireless module is connected to the voltage input end ADD1 of the control unit, that is, both can share one power supply, and the ground end GND1 of the wireless module is connected to the ground end GND2 of the control unit.

[0047] In one exemplary embodiment, please refer to Figure 3, the first mode switching circuit further comprises a first sub-switching circuit and a second sub-switching circuit in parallel; the first sub-switching circuit comprises a first transistor Q1, a first switch S1 and two first output terminals M1; a base of the first transistor Q1 is connected with the first input terminal A1, a collector of the first transistor Q1 is connected with the first switch S1; the first switch S1 comprises two first output terminals M1, one first output terminal M1 of the first switch S1 is connected with the first signal output interface B, and another first output terminal M1 of the first switch S1 is connected with the second signal input interface C; an emitter of the first transistor Q1 is grounded; the second sub-switching circuit comprises a second transistor Q2, a second switch S2 and two first output terminals M1; a base of the second transistor Q2 is connected with the first input terminal A1, a collector of the second transistor Q2 is connected with the second switch S2; the second switch S2 comprises two first output terminals M1, one first output terminal M1 of the second switch S2 is connected with the first signal output interface B, and another first output terminal M1 of the second switch S2 is connected with the first download interface D; an emitter of the second transistor Q2 is grounded; the first transistor Q1 and the second transistor Q2 are transistors with opposite polarities.

[0048] For example, the first transistor Q1 can be an NPN type, and the second transistor Q2 can be a PNP type. Alternatively, the first transistor Q1 can be a PNP type, and the second transistor Q2 can be an NPN type, as long as the polarities of the two transistors are opposite.

[0049] In an exemplary embodiment, the first switch S1 and the second switch S2 are relay switches. Alternatively, the two ends of the relay switch can represent or be connected with a first output terminal M1 respectively, so that when the relay switch is closed, the two first output terminals M1 are turned on, and when the relay switch is opened, the two first output terminals M1 are turned off. Specifically, when the coil of the relay is powered, the switch is closed; when the coil is powered off, the switch is automatically opened, i.e. the switch is opened. Alternatively, please refer to Figure 3 The first switch S1 can be connected with a power supply to provide a certain voltage to the collector of the first transistor Q1. The emitter of the second transistor Q2 can be connected with a power supply. Alternatively, the voltage provided by the power supply is V1, which can be 5V, and the specific value is set according to the needs, which is not limited herein. Alternatively, the switch in the present application can also be other electrically controlled switches, i.e. not limited to relay switches.

[0050] In one exemplary embodiment, when the first input terminal A1 inputs a first level value, the first signal output interface B is connected with the second signal input interface C; when the first input terminal A1 inputs a second level value, the first signal output interface B is connected with the first download interface D; the first level value is not equal to the second level value. For details, please continue to refer to Figure 3 For example, the first transistor Q1 can be NPN type, the second transistor Q2 can be PNP type, the first level value can be the above-mentioned high level value, i.e. a level value greater than a preset level, and the preset level is determined by the transistor itself. For the transistor, the on-off control of the transistor can be realized by controlling the base voltage. In the embodiment of the application, when the first input terminal A1 inputs a high level value, the first transistor Q1 is turned on, and the second transistor Q2 is not turned on, so that the first switch S1 is closed, the second switch S2 is opened, the first signal output interface B is connected with the second signal input interface C, and the serial port communication between the wireless module and the control unit can be realized. Similarly, the second level value can be the above-mentioned low level value, i.e. a level value less than the preset level. In the embodiment of the application, when the first input terminal A1 inputs a low level value, the first transistor Q1 is not turned on, and the second transistor Q2 is turned on, so that the first switch S1 is opened, the second switch S2 is closed, the first signal output interface B is connected with the first download interface D, and the wireless module and the control unit can be in the wireless download mode. Relevant personnel can realize the updating and upgrading of the relevant program in the control unit by operating the terminal.

[0051] In one exemplary embodiment, the first mode switching circuit further comprises a first resistor R1; an input terminal of the first resistor R1 is connected with the first input terminal A1, and an output terminal of the first resistor R1 is connected with the base of the first transistor Q1 and the base of the second transistor Q2. The first resistor R1 plays a role of voltage division.

[0052] In one exemplary embodiment, please refer to Figure 4, the second mode switching circuit further comprises a third sub-switching circuit and a fourth sub-switching circuit in parallel; the third sub-switching circuit comprises a third transistor Q3, a third switch S3 and two first output terminals M1; the base of the third transistor Q3 is connected with the second input terminal A2, and the collector of the third transistor Q3 is connected with the third switch S3; the third switch S3 comprises two second output terminals M2, one second output terminal M2 of the third switch S3 is connected with the first signal input interface E, and the other first output terminal M1 of the third switch S3 is connected with the second signal output interface F; the emitter of the third transistor Q3 is grounded; the fourth sub-switching circuit comprises a fourth transistor Q4, a fourth switch S4 and two first output terminals M1; the base of the fourth transistor Q4 is connected with the first input terminal A1, and the collector of the fourth transistor Q4 is connected with the fourth switch S4; the fourth switch S4 comprises two second output terminals M2, one second output terminal M2 of the fourth switch S4 is connected with the first signal input interface E, and the other second output terminal M2 of the fourth switch S4 is connected with the second download interface G; the emitter of the fourth transistor Q4 is grounded; the third transistor Q3 and the fourth transistor Q4 are transistors with opposite polarities.

[0053] For example, the third transistor Q3 can be an NPN transistor, and the fourth transistor Q4 can be a PNP transistor. Alternatively, the third transistor Q3 can be a PNP transistor, and the fourth transistor Q4 can be an NPN transistor, as long as the polarities of the two transistors are opposite.

[0054] In an exemplary embodiment, the third switch S3 and the fourth switch S4 are relay switches. Alternatively, the two ends of the relay switch can represent a first output terminal M1 respectively, or can be connected with a first output terminal M1 respectively, so that when the relay switch is closed, the two first output terminals M1 are turned on, and when the relay switch is opened, the two first output terminals M1 are not turned on. Alternatively, please refer to Figure 3 The third switch S3 can be connected with a power supply to provide a certain voltage for the collector of the third transistor Q3. The emitter of the fourth transistor Q4 can be connected with a power supply.

[0055] In an exemplary embodiment, when the second input terminal A2 inputs a first level value, the first signal input interface E and the second signal output interface F are turned on; when the second input terminal A2 inputs a second level value, the first signal input interface E and the second download interface G are turned on; the first level value and the second level value are not equal. Specifically, please refer to Figure 4For example, the third transistor Q3 can be NPN type, the fourth transistor Q4 can be PNP type, the first level value can be the high level value, i.e. the level value greater than the preset level, and the preset level is determined by the transistor itself. In the embodiment of the application, when the second input end A2 inputs the high level value, the third transistor Q3 is turned on, the fourth transistor Q4 is not turned on, so that the third switch S3 is closed, the fourth switch S4 is disconnected, the first signal input interface E is connected with the second signal output interface F, and the serial communication between the wireless module and the control unit can be realized. Similarly, the second level value can be the low level value, i.e. the level value less than the preset level. In the embodiment of the application, when the second input end A2 inputs the low level value, the third transistor Q3 is not turned on, the fourth transistor Q4 is turned on, so that the third switch S3 is disconnected, the fourth switch S4 is closed, the first signal input interface E is connected with the second download interface G, and the wireless module and the control unit can be in the wireless download mode. The relevant personnel can update and upgrade the relevant program in the control unit by operating the terminal.

[0056] In an exemplary embodiment, the first mode switching circuit further comprises a second resistor R2; an input end of the second resistor R2 is connected with the second input end A2, and an output end of the second resistor R2 is connected with the base of the third transistor Q3 and the base of the fourth transistor Q4. The second resistor R2 plays a role of voltage division.

[0057] In another aspect, the application also discloses a control device comprising the wireless download circuit and the signal output device.

[0058] In another aspect, the application also discloses a range hood comprising the control device.

[0059] When it is necessary to update the program in the control unit, the relevant button on the panel of the range hood can be operated, which determines the high and low levels of the first input end A1 and the second input end A2, i.e. the high and low levels of the signal output of the signal output device. Specifically, when the user presses the download button on the range hood, the signal output device outputs a low level, at which time the wireless module and the control unit are in a download mode. Specifically, based on the range hood provided in the present application, when the user operates the electric control system of the range hood to enter the WIFI pairing mode, the user connects WIFI, and pairs the WIFI module on the electric control system through the mobile phone APP, after the pairing is successful, the WIFI module on the electric control system can communicate with the APP data of the user. If the technical personnel of the manufacturer has new improvements in the air volume data, it can be uploaded to the cloud platform, and then sent to the APP used by the user, and the user can select to update the program according to the use of his own family. Moreover, the technical personnel can conveniently debug the code, and it is more convenient to return the program. When a batch of program faults occur, if the machines are distributed in the homes of users all over the country, the manufacturer can update the program online, reducing the situation that the technical personnel go on business trips to repair the machines.

[0060] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A wireless download circuit, characterized by, The wireless module, the first mode switching circuit, the second mode switching circuit and the control unit are included. The wireless module includes a first signal output interface and a first signal input interface. The control unit includes a second signal output interface, a second signal input interface, a first download interface and a second download interface. The first mode switching circuit includes a first input end and a plurality of first output ends; the first signal output interface, the second signal input interface and the first download interface are connected with corresponding first output ends respectively. The second mode switching circuit includes a second input end and a plurality of second output ends; the first signal input interface, the second signal output interface and the second download interface are connected with corresponding second output ends respectively. The first input end and the second input end are connected with a signal output device respectively.

2. The wireless download circuit of claim 1, wherein, The first mode switching circuit further includes a first sub-switching circuit and a second sub-switching circuit in parallel. The first sub-switching circuit includes a first triode, a first switch and two first output ends. The base of the first triode is connected with the first input end, and the collector of the first triode is connected with the first switch; the first switch includes two first output ends, one first output end of the first switch is connected with the first signal output interface, and the other first output end of the first switch is connected with the second signal input interface; the emitter of the first triode is grounded. The second sub-switching circuit includes a second triode, a second switch and two first output ends. The base of the second triode is connected with the first input end, and the collector of the second triode is connected with the second switch; the second switch includes two first output ends, one first output end of the second switch is connected with the first signal output interface, and the other first output end of the second switch is connected with the first download interface; the emitter of the second triode is grounded. The first triode and the second triode are transistors with opposite polarities.

3. The wireless download circuit of claim 2, wherein, The first switch and the second switch are relay switches.

4. The wireless download circuit of claim 1, wherein, When the first input end inputs a first level value, the first signal output interface and the second signal input interface are turned on; When the first input end inputs a second level value, the first signal output interface and the first download interface are turned on; the first level value and the second level value are not equal.

5. The wireless download circuit of claim 2, wherein, The first mode switching circuit further includes a first resistor. The input end of the first resistor is connected with the first input end, and the output end of the first resistor is connected with the base of the first triode and the base of the second triode.

6. The wireless download circuit of claim 1, wherein, The second mode switching circuit further includes a third sub-switching circuit and a fourth sub-switching circuit in parallel. The third sub-switching circuit includes a third triode, a third switch and two first output ends. The base of the third triode is connected with the second input end, and the collector of the third triode is connected with the third switch; the third switch includes two first output ends, one first output end of the third switch is connected with the first signal input interface, and the other first output end of the third switch is connected with the second signal output interface; the emitter of the third triode is grounded. The fourth sub-switching circuit includes a fourth triode, a fourth switch and two first output ends. The base of the fourth triode is connected with the second input end, and the collector of the fourth triode is connected with the fourth switch; the fourth switch includes two first output ends, one first output end of the fourth switch is connected with the second download interface, and the other first output end of the fourth switch is connected with the first signal input interface; the emitter of the fourth triode is grounded. The third triode and the fourth triode are transistors with opposite polarities. The third switch and the fourth switch are relay switches. The base of the third triode is connected with the second input end, and the collector of the third triode is connected with the third switch; the third switch includes two second output ends, one of the second output ends of the third switch is connected with the first signal input interface, and the other of the second output ends of the third switch is connected with the second signal output interface; the emitter of the third triode is grounded; The fourth sub-switching circuit includes a fourth triode, a fourth switch and two first output ends; The base of the fourth triode is connected with the first input end, and the collector of the fourth triode is connected with the fourth switch; the fourth switch includes two second output ends, one of the second output ends of the fourth switch is connected with the first signal input interface, and the other of the second output ends of the fourth switch is connected with the second download interface; the emitter of the fourth triode is grounded; The third triode and the fourth triode are transistors with opposite polarities.

7. The wireless download circuit of claim 6, wherein, When the second input end inputs a first level value, the first signal input interface and the second signal output interface are turned on; When the second input end inputs a second level value, the first signal input interface and the second download interface are turned on; the first level value is not equal to the second level value.

8. The wireless download circuit of claim 6, wherein, The first mode switching circuit further includes a second resistor; The input end of the second resistor is connected with the second input end, and the output end of the second resistor is connected with the base of the third triode and the base of the fourth triode.

9. A control device characterized by comprising: The wireless download circuit includes the signal output device.

10. A range hood characterized by, The control device includes the wireless download circuit. The control device includes the wireless download circuit.

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