CN219287541U - Load for refrigeration equipment and refrigeration equipment - Google Patents
Load for refrigeration equipment and refrigeration equipment Download PDFInfo
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- CN219287541U CN219287541U CN202223398669.XU CN202223398669U CN219287541U CN 219287541 U CN219287541 U CN 219287541U CN 202223398669 U CN202223398669 U CN 202223398669U CN 219287541 U CN219287541 U CN 219287541U
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Abstract
The utility model discloses a load for a refrigeration device and the refrigeration device, wherein the load for the refrigeration device comprises: a load body; the communication circuit is arranged on the load body and is used for communicating with a main control board of the refrigeration equipment through a bus; and the driving circuit board is arranged on the load body and used for driving the load body according to the control signal acquired by the communication circuit. According to the utility model, the communication circuit is arranged on the load body, and the control signal transmitted in the bus is identified by using the communication circuit, so that the driving circuit board can drive the load body according to the control signal, and the load is controlled in a bus mode.
Description
Technical Field
The utility model relates to the technical field of communication, in particular to a load for refrigeration equipment and the refrigeration equipment.
Background
And the partial loads in the refrigeration equipment are all provided with PCB boards which are used for driving the loads in general. The PCB board can not recognize the signal transmitted by the bus, so when the load with the PCB board is driven, the PCB board is usually connected with the main control board, and the main control board is required to be provided with a special circuit and a corresponding interface. The main control board can drive and regulate the load through the special line and the corresponding interface.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present utility model and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The utility model mainly aims to provide a load for refrigeration equipment and refrigeration equipment, and aims to solve the technical problem that the load cannot be controlled in a bus driving mode in the prior art.
In order to achieve the above object, the present utility model provides a load for a refrigeration apparatus, comprising:
a load body;
the communication circuit is arranged on the load body and is used for communicating with a main control board of the refrigeration equipment through a bus;
and the driving circuit board is arranged on the load body and used for driving the load body according to the control signal acquired by the communication circuit.
Optionally, the communication circuit is disposed on the driving circuit board.
Optionally, the communication circuit includes:
the driving input unit and the communication chip are sequentially connected, and the communication chip is connected with the driving circuit board;
the driving input unit is used for receiving control signals through a bus;
and the communication chip is used for converting the control signal into a corresponding control signal when the electrical parameter of the control signal is the same as a preset electrical parameter, and outputting the control signal to the driving circuit board so that the driving circuit board drives the load body based on the control signal.
Optionally, the communication circuit further includes:
the feedback output unit is connected with the main control board through a bus and is also connected with the communication chip;
the communication chip is further used for converting the current driving signal into a feedback signal and outputting the feedback signal to the feedback output unit when receiving the current driving signal of the driving circuit board; and
and the feedback output unit is used for outputting the feedback signal to the main control board through a bus.
Optionally, the driving input unit includes:
first to fifth resistors and first to second transistors;
one end of the first resistor is connected with the bus, the other end of the first resistor is connected with one end of the second resistor and the base electrode of the first triode, the collector electrode of the first triode is connected with one end of the third resistor, one end of the fourth resistor and the base electrode of the second triode, the other end of the third resistor is connected with a first power supply, and the emitter electrode of the first triode is grounded with the other end of the second resistor; and
the collector of the second triode is connected with one end of a fifth resistor and the receiving pin of the communication chip, the other end of the fifth resistor is connected with a second power supply, and the second end of the fourth resistor and the emitter of the second triode are grounded.
Optionally, the feedback output unit includes: sixth to tenth resistors and third to fourth transistors;
one end of a sixth resistor is connected with the first power supply, and the other end of the sixth resistor is respectively connected with the bus and the collector electrode of the third triode;
the base electrode of the third triode is respectively connected with one end of a seventh resistor, the collector electrode of the fourth triode and one end of an eighth resistor, and the emitter electrode of the third diode is grounded with the other end of the seventh resistor; and
the other end of the eighth resistor is connected with a second power supply, the base electrode of the fourth diode is connected with one end of the ninth resistor and one end of the tenth resistor, the emitter electrode of the fourth diode is grounded with the other end of the ninth resistor, and the other end of the tenth resistor is connected with the emitting pin of the communication chip.
Optionally, the communication circuit further includes: a first capacitor, a second capacitor, and a clamp diode;
one end of the first capacitor is connected with the bus, and the other end of the first capacitor is grounded; and
the first reference potential end of the clamping diode is connected with the first power supply, the second reference potential end of the clamping diode is grounded, and the clamped end of the clamping diode is connected with the bus;
the power end of the communication chip is respectively connected with a second power supply and one end of the second capacitor, and the other end of the second capacitor is grounded.
Optionally, the communication circuit further includes: a voltage dividing unit;
the voltage dividing unit includes: an eleventh resistor and a twelfth resistor;
one end of the eleventh resistor is connected with the control signal output end of the communication chip;
the other end of the eleventh resistor is connected with one end of the twelfth resistor and the control signal input end of the driving circuit board; and
the second end of the twelfth resistor is grounded.
Optionally, the load is any one of a fan, a motor in a refrigerator, and an ice maker.
To achieve the above object, the present utility model also provides a refrigeration apparatus comprising:
a main control board, a main control board and a control board,
the load for the refrigeration equipment;
the main control board is connected with the load for the refrigeration equipment through a bus.
The load for refrigeration equipment disclosed by the utility model comprises: a load body; the communication circuit is arranged on the load body and is used for communicating with a main control board of the refrigeration equipment through a bus; and the driving circuit board is arranged on the load body and used for driving the load body according to the control signal acquired by the communication circuit. According to the utility model, the communication circuit is arranged on the load body, and the control signal transmitted in the bus is identified by using the communication circuit, so that the driving circuit board can drive the load body according to the control signal, and the load is controlled in a bus mode.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a first embodiment of a load for a refrigeration apparatus according to the present utility model;
fig. 2 is a schematic diagram of a second structure of a first embodiment of a load for a refrigeration apparatus according to the present utility model;
fig. 3 is a schematic structural diagram of a second embodiment of a load for a refrigeration apparatus according to the present utility model;
fig. 4 is a schematic circuit diagram of a driving input unit and a feedback output unit in a load for a refrigeration device according to the present utility model;
fig. 5 is a schematic structural diagram of a communication chip in a load for a refrigeration device according to the present utility model;
fig. 6 is a schematic circuit diagram of a voltage divider circuit in a load for a refrigeration device according to the present utility model;
FIG. 7 is a schematic diagram of a driving chip in a driving circuit board in the prior art;
fig. 8 is a schematic diagram of a driving circuit board in the prior art.
Description of the reference numerals
The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the technical solutions should be considered that the combination does not exist and is not within the scope of protection claimed by the present utility model.
Referring to fig. 1, fig. 1 is a schematic view showing a first embodiment of a load for a refrigeration apparatus according to the present utility model.
The present utility model proposes a first embodiment of a load for a refrigeration appliance.
In this embodiment, the refrigeration equipment load includes:
a load body 1;
the communication circuit 2 is arranged on the load body 1 and is used for communicating with a main control board of refrigeration equipment through a bus;
and a driving circuit board 3 mounted on the load body 1 and used for driving the load body 1 according to the control signal acquired by the communication circuit 2.
It should be understood that the main control board is typically used to connect with the driving circuit board 3 through a dedicated harness and corresponding interface during the load driving process. The main control board outputs and generates corresponding control signals and outputs the control signals to the driving circuit board 3 to realize driving or regulating and controlling of the load. Since the driving circuit board 3 cannot directly recognize the control signal inputted through the bus including the software communication protocol, the driving circuit board 3 cannot directly drive and control the load through the bus. The driving circuit board 3 is used for receiving an externally input control signal, and outputting a corresponding driving voltage to the fan by using the control signal so as to perform driving control on the load.
Referring to fig. 1, a load body is a device provided inside a refrigeration device for controlling a state of the refrigeration device. The load body is a device provided with a PCB board, such as a fan, a motor in a refrigerator, an ice maker, a lamp and the like. The PCB board may be a driving circuit board 3 provided on the load body. The driving circuit board 3 can regulate and control the state of the load body. The communication circuit 2 is a circuit for establishing a communication connection between the bus and the drive circuit board. The communication circuit 2 may be composed of a communication chip and associated peripheral circuits.
In a specific driving process, the main control board can output control signals through the bus, the communication circuit 2 can identify the bus communication protocol, and the control signals obtained through identification are transmitted to the driving circuit board 3, so that the driving circuit board 3 drives the load. In the process of identifying the control signal, the communication circuit 2 may identify the control signal by using relevant electrical parameters of the control signal, such as phase, frequency, amplitude, and other parameters of the control signal. When the main control board drives the fan, the main control board can generate a control signal with a standard phase, when the ice maker is driven, the main control board can generate a control signal with a phase difference of 10 degrees from the standard phase, and the communication circuit 20 can output the control signal to the corresponding driving circuit board 3 according to the phase determination of the control signal, so that the fan or the ice maker is driven.
Further, referring to fig. 2 and 8, the communication circuit 2 may also be directly disposed on the driving circuit board 3, thereby avoiding an additional PCB board, resulting in an increase in cost and space required for load driving.
The refrigeration equipment load disclosed in the present embodiment includes: a load body; the communication circuit is arranged on the load body and is used for communicating with a main control board of the refrigeration equipment through a bus; and the driving circuit board is arranged on the load body and used for driving the load body according to the control signal acquired by the communication circuit. In this embodiment, the communication circuit is disposed on the load body, and the control signal transmitted in the bus is identified by using the communication circuit, so that the driving circuit board can drive the load body according to the control signal, and control the load in a bus manner is realized.
As shown in fig. 3, in the present embodiment, the communication circuit 2 includes: the driving input unit 10 and the communication chip 20 are sequentially connected, and the communication chip 20 is connected with the driving circuit board 3.
The driving input unit 10 may be directly connected to the main control board through a bus, and directly receive a control signal input by the main control board through the bus. The communication chip 20 can utilize the bus to communicate with the main control board and recognize the control signal output by the main control board. In addition, the communication chip 20 may also convert the control signal into a control signal that needs to be received by the input terminal of the driving circuit board 3. The communication chip 20 may be an F7350 series chip, such as an F7350M08U chip.
In a specific implementation, the main control board may output a control signal through a bus, and input the control signal to the communication chip 20 through the driving input unit 10; the communication chip 20 may compare the electrical parameter of the control signal with a preset electrical parameter; when the electrical parameter is the same as the preset electrical parameter, the control signal is considered to be a signal corresponding to the driving control of the load body, then the control signal is converted into a corresponding control signal, and the control signal is output to the driving circuit board 3, so that the driving circuit board 3 drives the load body based on the control signal. For example, the communication chip 20 may compare the phase parameter of the control signal with a preset phase parameter, and when the phase parameter of the control signal is the same as the preset phase parameter of the fan, may identify the control signal as a driving control signal of the fan; if the phase parameter of the control signal is different from the preset phase parameter, the control signal is not the driving control signal of the fan, and the subsequent conversion of the control signal is not needed.
Wherein the electrical parameter may be any one of the frequency, phase or amplitude of the control signal. The preset electrical parameter is a parameter preset for identifying the control signal, the preset electrical parameter is the same as the electrical parameter of the selected control signal, for example, the electrical parameter of the control signal is a phase parameter, and the corresponding preset electrical parameter is a preset phase parameter. The control signal is a signal transmitted by the main control board through the bus, when the control signal is a fan driving control signal, the control signal comprises specific fan driving parameters, and the fan driving parameters can be carried through parameters such as frequency, phase and the like of the control signal. The parameters for carrying the fan drive are not the same as the electrical parameters for identification, for example, the phase can be used as the signal identification parameter, the phase can be compared with the preset electrical parameters, and the frequency parameter can be used as the carrying parameter for the fan drive.
In addition, the control signals after being analyzed by the communication chip 20 realize various controls on the fan, so that the application working condition of the existing load is greatly increased; because the design utilizes the bus to adopt software communication control, the special number wiring harness is not required to be arranged from the main control board to be connected with the fan, the fan can be connected with the bus nearby, and the cost of fan driving can be further reduced.
It should be understood that the voltage value of the control signal transmitted in the bus may not match the voltage value that can be received by the communication chip 20, for example, the voltage amplitude of the control signal transmitted on the bus is 12V, and the maximum voltage amplitude of the control signal that can be received by the communication chip 20 is 5V, where the control signal is directly input to the communication chip 20, so that the control signal cannot be identified, and damage to the communication chip 20 is directly caused.
Therefore, in the present embodiment, the driving input unit 10 may also convert the voltage value of the control signal, so that the control signal after the voltage value conversion may be directly input to the communication chip 20, and will not affect the communication chip 20. And the communication chip 20 compares the electrical parameter of the converted control signal with a preset electrical parameter when receiving the control signal converted from the voltage value.
Of course, when the electrical parameter is the same as a preset electrical parameter, the control signal is converted into a corresponding control signal, and the control signal is output to the driving circuit board 3, so that the driving circuit board 3 drives the load body based on the control signal.
It will be appreciated that since the drive input unit 10 adjusts the voltage amplitude of the control signal, the electrical parameter selected by the communication chip 20 in performing the electrical parameter comparison to identify the software communication address may be an electrical parameter other than a non-amplitude parameter.
Further, in this embodiment, the communication circuit 2 further includes: a feedback output unit 30 connected with the main control board through a bus;
the feedback output unit 30 is also connected to the communication chip 20.
It can be understood that in the load operation process, the driving chip in the driving circuit board can collect the current driving signal corresponding to the current operation parameter of the load body and then feed back to the main control board, so that the main control board can monitor the operation state of the load body.
The current driving signal is a driving signal corresponding to the load body in the current running state. The current driving signal may be a signal corresponding to parameters such as driving voltage, driving current, driving power, etc.
The feedback output unit 30 is a unit for outputting a feedback signal corresponding to the running state of the load body to the main control board through the bus.
In this embodiment, the driving circuit board 3 may also feed back the current driving signal to the main control board through the bus. The specific steps include that the driving circuit board 3 may output a current driving signal corresponding to a current running state of the load body to the communication chip 20; the communication chip 20, upon receiving a current driving signal of the driving circuit board 3, converts the current driving signal into a feedback signal and outputs the feedback signal to the feedback output unit 30; the feedback output unit 30 outputs the feedback signal through a bus.
Further, the feedback output unit 30 may also convert the voltage value corresponding to the feedback signal into a voltage value that can be transmitted in the bus. For example, the voltage value of the transmission signal in the bus is 12V, the maximum signal value of the feedback output unit 30 received by the communication chip is only 5V, the feedback signal with the voltage value of 5V is not necessarily transmitted to the main control board in the bus, and the feedback output unit 30 can adjust the voltage amplitude of the feedback signal to 12V, so that the feedback signal can be transmitted to the main control board in the bus.
Further, referring to fig. 3, in the present embodiment, the driving input unit 10 includes:
first to fifth resistors R1 to R5 and first to second transistors Q1 to Q2;
one end of a first resistor R1 is connected with the bus, the other end of the first resistor R1 is connected with one end of a second resistor R2 and a base electrode of a first triode Q1, a collector electrode of the first triode Q1 is connected with one end of a third resistor R3, one end of a fourth resistor R4 and the base electrode of the second triode Q2, the other end of the third resistor R3 is connected with a first power supply VCC1, and an emitter electrode of the first triode Q1 is grounded with the other end of the second resistor R2;
the collector of the second triode Q2 is connected with one end of a fifth resistor R5 and the receiving pin RXD of the communication chip 20, the other end of the fifth resistor R5 is connected with a second power supply VCC2, and the second end of the fourth resistor R4 and the emitter of the second triode Q2 are grounded.
In fig. 3, one end of the first resistor R1 is connected to the bus, and a control signal can be input to the base of the first triode Q1 through the first resistor R1, so as to cause a change in the base potential of the first triode Q1, that is, a change in the on state of the first triode Q1; when the on state of the first triode Q1 changes, the output loop of the first power supply VCC1 changes, and further causes the base potential of the second triode Q2 to change, so as to control the on state of the second triode Q2 to change, and at this time, the state of the second power supply VCC2 input to the communication chip 20 changes, so that the control signal is input to the communication chip 20 after being converted. For example, when the control signal is a high-level signal, the base of the first triode Q1 is in a high-level state by the first resistor R1, the first triode Q1 is turned on, the first power supply VCC1 is in a low-level state through the third resistor R3 and the first triode Q1 ground GND, that is, the base of the second triode Q2, the second triode Q2 is turned off, and the second power supply VCC2 can output the control signal after the high-level voltage conversion to the communication chip 20 through the fifth resistor R5.
The first transistor, the second transistor and the third transistor may be replaced by other switching transistors having the same function, and specific device structures are not limited herein. The first power supply VCC1 may provide a voltage signal of an amplitude transmitted within the bus. The voltage value of the second power supply VCC2 can be directly input to the communication chip 20, which
The voltage value of the second power VCC2 may be 5V.
Referring to fig. 3, in the present embodiment, the feedback output unit 40 includes: sixth to tenth resistors R6 to R10 and third to fourth transistors Q3 to Q4;
one end of a sixth resistor R6 is connected with the first power supply VCC1, and the other end of the sixth resistor R6 is respectively connected with the bus and the collector electrode of the third triode Q3;
the base electrode of the third triode Q3 is respectively connected with one end of a seventh resistor R7, the collector electrode of the fourth triode Q4 and one end of an eighth resistor R8, and the emitter electrode of the third diode Q3 is grounded with the other end of the seventh resistor R7;
the other end of the eighth resistor R8 is connected to the second power VCC2, the base of the fourth diode Q4 is connected to one end of the ninth resistor R9 and one end of the tenth resistor R10, the emitter of the fourth diode Q4 is grounded to the other end of the ninth resistor R9, and the other end of the tenth resistor R10 is connected to the transmitting pin TXD of the communication chip 20.
In fig. 3, one end of the tenth resistor R10 is connected to the transmitting pin of the communication chip 20, and the feedback signal output by the transmitting pin of the communication chip 20 can be input to the base electrode of the third triode Q3 through the tenth resistor R10, so as to cause the change of the potential of the base electrode of the third triode Q3, that is, the change of the conduction state of the third triode Q3; when the on state of the third triode Q3 changes, the output loop of the second power supply VCC2 changes, and further causes the base potential of the fourth triode Q4 to change, so as to control the on state of the fourth triode Q4 to change, and at this time, the voltage state of the first power supply VCC1 fed back to the bus changes, so that the feedback signal is output to the main control board through the bus after being converted. For example, when the feedback signal is a high-level signal, the base of the third triode Q3 is in a high-level state by the tenth resistor R10, the third triode Q3 is turned on, the second power supply VCC2 is in a low-level state through the eighth resistor R8 and the third triode Q3 ground GND, that is, the base of the fourth triode Q4, the fourth triode Q4 is turned off, and the first power supply VCC1 can output the feedback signal after the high-level voltage conversion to the main control board through the sixth resistor R6.
Similarly, the third through fourth transistors may be replaced with other switching transistors having the same function, and the specific device structure is not limited herein.
Further in this embodiment, the communication circuit 2 further includes: a first capacitor C1 and a clamp diode D1;
one end of the first capacitor C1 is connected with the bus, and the other end of the first capacitor C is grounded to GND; and
the first reference potential end of the clamping diode D1 is connected with the first power supply VCC1, the second reference potential end is grounded GND, and the clamped end is connected with the bus.
It should be understood that the control signal or the feedback signal transmitted through the bus may be subjected to internal or external electromagnetic interference, which causes a change in the voltage amplitude or frequency of the control signal or the feedback signal, so that signal transmission cannot be performed accurately. Therefore, in the present embodiment, the first capacitor C1 and the clamp diode D1 are provided, wherein the first capacitor C1 is a filter capacitor.
In a specific implementation, when the control signal is input through the bus, the first capacitor C1 may filter the control signal to filter interference clutter in the control signal, and then the clamping diode D1 may clamp the voltage value of the external signal between the voltage value of the first power VCC1 and the ground GND, so as to avoid a frequency or amplitude variation of the control signal caused by clutter interference. The filtering and clamping processes of the feedback signals are the same as those of the control signals, and are not repeated here.
Referring to fig. 4, in the present embodiment, the communication circuit 2 further includes: a second capacitor C2;
the power supply terminal of the communication chip 20 is connected to the second power supply VCC2 and one end of the second capacitor C2, and the other end of the second capacitor C2 is grounded GND.
In fig. 4, the power supply pin VDD of the communication chip is connected to the second power supply VCC2, and the ground pin VSS of the communication chip is grounded GND.
It should be appreciated that the voltage output by the second power supply VCC2 may provide a desired operating voltage for the communication chip 20. The second capacitor C2 is a voltage stabilizing capacitor, and when there is an amplitude fluctuation in the voltage output by the second power VCC2, the voltage value input to the communication chip 20 can be maintained stable by using the charge-discharge characteristic of the second capacitor C2.
In addition, the second capacitor C2 can also filter out the high noise doped in the voltage output by the second power VCC2, so as to avoid the influence of the high noise on the working state of the communication chip 20.
Referring to fig. 5 and 6, in the present embodiment, the communication circuit 2 further includes: a voltage dividing unit;
the voltage dividing unit includes: an eleventh resistor R11 and a twelfth resistor R12;
one end of the eleventh resistor R11 is connected to the PWM signal output end of the communication chip 20;
the other end of the eleventh resistor R11 is connected to one end of the twelfth resistor R12 and a driving signal input end of the driving chip U1 in the driving circuit board 3; the second end of the twelfth resistor R12 is grounded GND.
It should be understood that the voltage value of the control signal generated by the communication chip 20 may be different from the voltage value that can be received by the driving chip U1 in the driving circuit board 3, so as to avoid the influence on the control signal caused by the voltage amplitude, a voltage dividing unit including an eleventh resistor R11 and a twelfth resistor R12 may be provided, through which the signal amplitude of the control signal input to the driving chip U1 may be adjusted, thereby avoiding the influence on the driving control of the load body caused by the amplitude mismatch.
The input PIN of the driver chip U1 is connected to the signal output PIN POUT of the communication chip 20, and the output PIN FGOUT of the driver chip U1 driving signal is connected to the signal input PIN FGIN of the communication chip 20. The power supply pin VCC of the driving chip is connected with a corresponding power supply, and the voltage output pins OUT1 and OUT2 of the driving chip are connected with the load body and used for outputting voltage to drive the load body.
In this embodiment, the load for a refrigeration device disclosed in this embodiment may receive a control signal input by the main control board through the bus, and may convert a current driving signal into a feedback signal and feedback the feedback signal to the main control board through the bus, so that the main control board may detect an operation state of the load body. The filtering and clamping processes can enable the received control signal or the output feedback signal to be more accurate. And the second power supply VCC2 is stabilized through the second capacitor C2, so that the influence on the operating state of the communication chip 20 caused by the unstable voltage output by the second power supply VCC2 is avoided. In addition, by providing the voltage dividing unit, the influence of the voltage amplitude of the control signal output by the communication chip 20 on the driving control of the load body is avoided, so that the driving control of the load body is performed more accurately.
In order to achieve the above purpose, the utility model also provides a refrigeration device, which comprises a main control board and a load for the refrigeration device; the main control board is connected with the load for the refrigeration equipment through a bus. The specific structure of the refrigeration equipment refers to the above embodiments, and since the refrigeration equipment can adopt the technical solutions of all the embodiments, the refrigeration equipment at least has the beneficial effects brought by the technical solutions of the embodiments, and the description is omitted herein.
The foregoing description is only of the preferred embodiments of the present utility model, and is not intended to limit the scope of the utility model, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
It should be noted that, in the practical application of the present utility model, the application is inevitably applied to software programs, but the applicant states that the software programs applied in the implementation of the technical solution are all the prior art, and in the present application, modification and protection of the software programs are not involved, but protection of a hardware architecture designed for achieving the purpose of the present utility model.
Claims (10)
1. A load for a refrigeration appliance, comprising:
a load body;
the communication circuit is arranged on the load body and is used for communicating with a main control board of the refrigeration equipment through a bus;
and the driving circuit board is arranged on the load body and used for driving the load body according to the control signal acquired by the communication circuit.
2. The refrigeration-appliance load according to claim 1, wherein the communication circuit is provided on the drive circuit board.
3. The refrigeration appliance load according to claim 1, wherein said communication circuit includes:
the driving input unit and the communication chip are sequentially connected, and the communication chip is connected with the driving circuit board;
the driving input unit is used for receiving control signals through a bus;
and the communication chip is used for converting the control signal into a corresponding control signal when the electrical parameter of the control signal is the same as a preset electrical parameter, and outputting the control signal to the driving circuit board so that the driving circuit board drives the load body based on the control signal.
4. A refrigeration appliance load as set forth in claim 3 wherein said communication circuit further includes:
the feedback output unit is connected with the main control board through a bus and is also connected with the communication chip;
the communication chip is further used for converting the current driving signal into a feedback signal and outputting the feedback signal to the feedback output unit when receiving the current driving signal of the driving circuit board; and
and the feedback output unit is used for outputting the feedback signal to the main control board through a bus.
5. The refrigeration apparatus load according to claim 4, wherein the drive input unit includes:
first to fifth resistors and first to second transistors;
one end of the first resistor is connected with the bus, the other end of the first resistor is connected with one end of the second resistor and the base electrode of the first triode, the collector electrode of the first triode is connected with one end of the third resistor, one end of the fourth resistor and the base electrode of the second triode, the other end of the third resistor is connected with a first power supply, and the emitter electrode of the first triode is grounded with the other end of the second resistor; and
the collector of the second triode is connected with one end of a fifth resistor and the receiving pin of the communication chip, the other end of the fifth resistor is connected with a second power supply, and the second end of the fourth resistor and the emitter of the second triode are grounded.
6. The refrigeration-appliance load according to claim 5, wherein said feedback output unit includes: sixth to tenth resistors and third to fourth transistors;
one end of a sixth resistor is connected with the first power supply, and the other end of the sixth resistor is respectively connected with the bus and the collector electrode of the third triode;
the base electrode of the third triode is respectively connected with one end of a seventh resistor, the collector electrode of the fourth triode and one end of an eighth resistor, and the emitter electrode of the third triode and the other end of the seventh resistor are grounded; and
the other end of the eighth resistor is connected with a second power supply, the base electrode of the fourth triode is connected with one end of the ninth resistor and one end of the tenth resistor, the emitter electrode of the fourth triode is grounded with the other end of the ninth resistor, and the other end of the tenth resistor is connected with the emitting pin of the communication chip.
7. The refrigeration appliance load according to claim 6, wherein said communication circuit further comprises: a first capacitor, a second capacitor, and a clamp diode;
one end of the first capacitor is connected with the bus, and the other end of the first capacitor is grounded; and
the first reference potential end of the clamping diode is connected with the first power supply, the second reference potential end of the clamping diode is grounded, and the clamped end of the clamping diode is connected with the bus;
the power end of the communication chip is respectively connected with a second power supply and one end of the second capacitor, and the other end of the second capacitor is grounded.
8. The refrigeration appliance load according to claim 7, wherein said communication circuit further comprises: a voltage dividing unit;
the voltage dividing unit includes: an eleventh resistor and a twelfth resistor;
one end of the eleventh resistor is connected with the control signal output end of the communication chip;
the other end of the eleventh resistor is connected with one end of the twelfth resistor and the control signal input end of the driving circuit board; and
the second end of the twelfth resistor is grounded.
9. The load for a refrigeration appliance according to any one of claims 1 to 8, wherein said load is any one of a blower, a motor in a refrigerator, and an ice maker.
10. A refrigeration appliance, comprising:
a main control board, a main control board and a control board,
a refrigeration appliance load as claimed in any one of claims 1 to 9;
the main control board is connected with the load for the refrigeration equipment through a bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223398669.XU CN219287541U (en) | 2022-12-15 | 2022-12-15 | Load for refrigeration equipment and refrigeration equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223398669.XU CN219287541U (en) | 2022-12-15 | 2022-12-15 | Load for refrigeration equipment and refrigeration equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219287541U true CN219287541U (en) | 2023-06-30 |
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ID=86929615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223398669.XU Active CN219287541U (en) | 2022-12-15 | 2022-12-15 | Load for refrigeration equipment and refrigeration equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219287541U (en) |
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2022
- 2022-12-15 CN CN202223398669.XU patent/CN219287541U/en active Active
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