Speed regulation device and refrigeration equipment

Abstract

The utility model provides a speed regulating device and refrigeration equipment. The speed regulation device comprises a connecting assembly, a starting assembly and a switch assembly connected between the connecting assembly and the starting assembly. The connecting assembly comprises at least six connecting pieces, and the first connecting piece is used for being electrically connected with a live wire. The fifth connecting piece is electrically connected with the other end of the starting assembly, and one end of the starting assembly is used for being electrically connected with a zero line. The speed regulation device has a first speed and a second speed less than the first speed. In the first speed state, the second connecting piece and the fourth connecting piece are communicated with the first connecting piece, the third connecting piece is communicated with one end of the starting assembly, and the sixth connecting piece is communicated with the fifth connecting piece. And in the second speed state, the sixth connecting piece is conducted with the first connecting piece, the second connecting piece is conducted with one end of the starting assembly, and the third connecting piece and the fourth connecting piece are disconnected. According to the speed regulation device, the failure rate and maintenance difficulty of the refrigeration equipment can be reduced, and the user satisfaction degree is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of refrigeration equipment, in particular to a speed regulating device and a refrigeration equipment. BACKGROUND

[0002] Refrigeration equipment such as refrigerators, freezers or air conditioners is an indispensable household appliance in people's daily life. The compressor in the refrigeration equipment is used to pump refrigerant for the refrigeration system, so that the refrigeration equipment can adjust the refrigeration capacity and refrigeration temperature according to the refrigeration demand of the user. Generally, the refrigeration equipment has a high load working condition or a low load working condition, and the running speed of the compressor can include a speed adapted to the high load working condition and a speed adapted to the low load working condition.

[0003] However, the wiring mode of the compressor switching the running speed in the related art is relatively complex, resulting in high failure rate and great maintenance difficulty of the refrigeration equipment, and poor user satisfaction. CONTENT OF THE UTILITY MODEL

[0004] Therefore, the present application provides a speed regulating device and a refrigeration equipment, which can reduce the failure rate and maintenance difficulty of the refrigeration equipment, and improve user satisfaction.

[0005] Specifically, the present application is implemented through the following technical solutions:

[0006] According to a first aspect of an embodiment of the present application, a speed regulating device is provided, which comprises a connection assembly, a starting assembly and a switch assembly. The connection assembly comprises at least six connecting pieces, including a first connecting piece, a second connecting piece, a third connecting piece, a fourth connecting piece, a fifth connecting piece and a sixth connecting piece arranged at intervals. The first connecting piece is used to be electrically connected with a live wire. The other end of the starting assembly is electrically connected with the fifth connecting piece, and one end of the starting assembly is used to be electrically connected with a neutral wire. The switch assembly is connected between the connection assembly and the starting assembly. The speed regulating device has a first speed and a second speed smaller than the first speed. In the first speed state, the switch assembly is configured such that the second connecting piece and the fourth connecting piece are respectively connected with the first connecting piece, the third connecting piece is connected with one end of the starting assembly, and the sixth connecting piece is connected with the fifth connecting piece. In the second speed state, the switch assembly is configured such that the sixth connecting piece is connected with the first connecting piece, the second connecting piece is connected with one end of the starting assembly, and the third connecting piece and the fourth connecting piece are respectively disconnected.

[0007] The technical solutions of the present application are further described as follows:

[0008] In one embodiment, the switching assembly includes a first switch, a second switch, a third switch, and a fourth switch. The first switch is electrically connected between a second connector and one end of the first connector and the starting component, causing the second connector to be switched on with or off from one end of the first connector and the starting component. The second switch is electrically connected between a third connector and one end of the starting component, causing the third connector to be switched on or off from one end of the starting component. The third switch is electrically connected between the fourth connector and the first connector, causing the fourth connector to be switched on or off from the first connector. The fourth switch is electrically connected between a sixth connector, the first connector, and a fifth connector, causing the sixth connector to be switched on with or off from the first connector and the fifth connector.

[0009] In one embodiment, the speed control device further includes a circuit board, and at least one of a starting component, a switching component, and a connecting component is integrated on the circuit board.

[0010] In one embodiment, the speed regulating device further includes a power supply component, which includes a live wire terminal electrically connected to the first connector and a neutral wire terminal electrically connected to one end of the starting component. The power supply component and the starting component are integrated.

[0011] In one embodiment, the circuit board has a live wire contact and a neutral wire contact, a first connector is electrically connected to the live wire contact, one end of the starting component is electrically connected to the neutral wire contact, and the live wire contact and the neutral wire contact are used to electrically connect to the main control board.

[0012] In one embodiment, the first and fourth switching elements are integrated as a double-pole double-throw switch, and the second and third switching elements are integrated as a double-pole single-throw switch. The switching assembly also includes a power supply for supplying power to the double-pole double-throw switch and the double-pole single-throw switch, and the power supply is integrated with the circuit board or power supply assembly.

[0013] In one embodiment, the starting component includes a starter and / or a capacitor, the starter and the capacitor being connected in parallel, one end of the parallel connection being electrically connected to a fifth connector, and the other end of the parallel connection being used to electrically connect to a neutral wire.

[0014] In one embodiment, the circuit board has starter contacts and / or capacitor contacts, with the starter connected to the starter contacts for integration into the circuit board and the capacitor connected to the capacitor contacts for integration into the circuit board.

[0015] In one embodiment, the speed regulating device further includes a connecting housing, in which the starter and capacitor are integrated in parallel. One of the connecting housing and the circuit board is provided with a connecting hole, and the other is provided with a connecting post corresponding to the connecting hole. The connecting post is inserted into the connecting hole to conduct the connection circuit between the circuit board and the starter and capacitor.

[0016] In one embodiment, the circuit board is further provided with plugs corresponding to at least six connectors, which are used to plug into the terminals provided on the outer wall of the compressor housing to make the speed control device electrically connected to the compressor.

[0017] In one embodiment, the circuit board is further provided with terminals corresponding to at least six connectors. The at least six connectors are configured as connecting wires. The connection assembly also includes two connectors, each connector having three sockets. The first connector, the second connector, and the third connector are respectively connected to the three sockets of one of the connectors. The fourth connector, the fifth connector, and the sixth connector are respectively connected to the three sockets of the other connector. The two connectors are used to connect to the terminals on the compressor housing through the sockets so that the speed control device is electrically connected to the compressor.

[0018] In one embodiment, the speed regulating device further includes a mounting housing with a mounting cavity. A circuit board is disposed in the mounting cavity. The outer wall of the mounting housing is provided with mounting members that are electrically connected to at least six connectors one by one. The mounting members are used to be plugged into terminals provided on the outer wall of the compressor housing one by one. The plugging of the terminals into the mounting members connects the mounting housing to the compressor housing and conducts the connection circuit between each connector and the terminal.

[0019] According to a second aspect of the embodiments of this application, a refrigeration device is provided, including a housing assembly, a main control board, a compressor, and the aforementioned speed control device. The main control board and the compressor are respectively disposed in the housing assembly. The compressor includes a housing with a receiving cavity, a motor installed in the housing, and at least six terminals disposed on the outer wall of the housing. Each terminal is electrically connected to each connector in a one-to-one correspondence. The terminals are also electrically connected to the windings of the motor. The speed control device is electrically connected to the main control board to make the compressor run at a first speed or a second speed.

[0020] The technical solutions provided by the embodiments of this application have at least the following beneficial effects:

[0021] In use, the speed control device provided in this application connects each connector of the speed control device to each terminal of the compressor. The first connector is connected to the live wire, and one end of the starting assembly is connected to the neutral wire. When the switching assembly of the speed control device is configured such that the second and fourth connectors are connected to the first connector, the third connector is connected to one end of the starting assembly, and the sixth connector is connected to the fifth connector, the speed control device allows the compressor to operate at a first speed, thus adapting to the high-load conditions of the refrigeration equipment. When the switching assembly of the speed control device is configured such that the sixth connector is connected to the first connector, the second connector is connected to one end of the starting assembly, and the third and fourth connectors are disconnected, the speed control device allows the compressor to operate at a second speed, thus adapting to the low-load conditions of the refrigeration equipment.

[0022] Thus, the speed control device provided in this application only requires electrical connection of each connector to one-to-one with the terminals extending from the compressor to complete the wiring for switching the compressor's operating speed. The wiring is simple and convenient, resulting in a low failure rate for the refrigeration equipment. If a compressor speed switching failure occurs during the operation of the refrigeration equipment, maintenance personnel can directly troubleshoot and repair the speed control device, reducing maintenance difficulty and improving user satisfaction.

[0023] Understandably, the speed control device provided in this application can be applied to refrigeration equipment, which is not limited to refrigerators, freezers, or air conditioners.

[0024] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0025] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application.

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the structure of the refrigeration equipment provided by this utility model.

[0028] Figure 2 A schematic diagram of the compressor provided by this utility model.

[0029] Figure 3 A schematic diagram of the wiring method of the speed regulation circuit of the speed regulation device provided by this utility model.

[0030] Figure 4 for Figure 3 The diagram shows the wiring of the speed control device in the first speed state.

[0031] Figure 5 for Figure 3 The diagram shows the wiring of the speed control device in the second state.

[0032] Figure 6 This is a schematic diagram of the speed regulating device in one embodiment of the present invention.

[0033] Figure 7 This is a schematic diagram of the speed regulating device in another embodiment of the present invention.

[0034] Figure 8 This is a schematic diagram of the speed regulating device in another embodiment of the present invention.

[0035] Figure 9 A schematic diagram of the speed regulating device with a mounting shell provided by this utility model.

[0036] Figure label:

[0037] 1-Refrigeration equipment; 10-Speed ​​control device; 11-Connecting assembly; 111-First connector; 112-Second connector; 113-Third connector; 114-Fourth connector; 115-Fifth connector; 116-Sixth connector; 117-Connecting base; 118-Socket; 12-Starting assembly; 121-Capacitor; 122-Starter; 123-One end of the starting assembly; 124-The other end of the starting assembly; 13-Switch assembly; 131-First switch; 132-Second switch; 133-Third switch; 134-Fourth switch; 135- Double-pole double-throw switch; 136-Double-pole single-throw switch; 137-Power supply; 14-Circuit board; 141-Capacitor contact; 142-Starter contact; 143-Live wire contact; 144-Neutral wire contact; 145-Connector; 146-Terminal; 15-Power supply assembly; 151-Live wire terminal; 152-Neutral wire terminal; 16-Connecting housing; 17-Mounting housing; 171-Mounting component; 172-Mounting hole; 173-Mounting slot; 20-Compressor; 21-Housing; 22-Terminal; 23-Motor; 30-Main control board; 40-Box assembly; 2-Live wire; 3-Neutral wire. Detailed Implementation

[0038] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0039] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, height, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movements between components in a specific posture (as shown in the attached figures). If the specific posture changes, the directional indications or positional relationships will also change accordingly.

[0040] Refrigeration equipment such as refrigerators, freezers, and air conditioners are indispensable household appliances. The compressor in a refrigeration device pumps refrigerant into the refrigeration system, enabling the device to adjust its cooling capacity and temperature according to the user's cooling needs. For example, in related technologies, refrigeration equipment may operate under high-load or low-load conditions, and the compressor's operating speed may include a first speed adapted to high-load conditions and a second speed adapted to low-load conditions. Understandably, the second speed is lower than the first speed to save energy during low-load operation.

[0041] However, in related technologies, the wiring method for switching the operating speed of the compressor between high-load and low-load conditions is relatively complex, resulting in a high failure rate and difficult maintenance of refrigeration equipment, leading to poor user satisfaction.

[0042] Therefore, this application provides a speed control device 10 that can be used with refrigeration equipment 1 to simplify the wiring method for switching the operating speed of compressor 20 between high load and low load conditions, thereby reducing the failure rate and maintenance difficulty of refrigeration equipment 1 and improving user satisfaction.

[0043] To better understand the speed control device 10 provided in this application, this application also provides a refrigeration device 1, which will be described below.

[0044] See Figure 1 and Figure 2 This application provides a refrigeration device 1, including a housing assembly 40, a main control board 30, a compressor 20, and a speed control device 10. The main control board 30 and the compressor 20 are respectively disposed in the housing assembly 40. The compressor 20 includes a housing 21 with a receiving cavity, a motor 23 installed in the housing 21, and at least six terminals 22 disposed outside the housing 21, each terminal 22 being electrically connected to the winding of the motor 23. The speed control device 10 is provided with connectors that are electrically connected to each terminal 22 in a one-to-one correspondence, and the speed control device 10 is also electrically connected to the main control board 30 to enable the compressor 20 to operate at a first speed or a second speed.

[0045] It should be noted that the refrigeration equipment 1 includes a refrigerator, freezer, or air conditioner. For a refrigerator / freezer, the cabinet assembly 40 may include an outer shell and an inner liner installed on the outer shell. The inner liner has a refrigeration compartment, and there is an installation space between the outer shell and the inner liner that separates the refrigeration compartment. The compressor 20 can be installed between the outer shell and the refrigeration space of the inner liner, thereby pumping refrigerant to the refrigeration system of the refrigerator / freezer to maintain the refrigeration effect of the refrigeration compartment. The main control board 30 is used to adjust the refrigeration temperature of the refrigerator / freezer and generate control commands according to other user control requirements. For an air conditioner, the cabinet assembly 40 may include the housing of the outdoor unit, and the compressor 20 can be installed inside the housing of the outdoor unit. The main control board 30 is used to adjust the cooling / heating temperature of the air conditioner and generate control commands according to other user control requirements. Other structures of the refrigeration equipment 1 are not described in detail in this application.

[0046] The compressor 20 is disposed in the housing assembly 40 of the refrigeration equipment 1. The compressor 20 includes a housing 21 with a receiving cavity and a motor 23 installed inside the housing 21. The housing 21 is used to connect to the housing assembly 40 of the refrigeration equipment 1, and the motor 23 is used to drive the compressor 20 to operate so that the refrigerant is compressed into a high-temperature and high-pressure gas inside the compressor 20, thereby providing power for the compressor 20 to pump the refrigerant. The operating speed of the compressor 20 includes a first speed and a second speed lower than the first speed. The first speed is suitable for the high-load operation of the refrigeration equipment 1, and the second speed is suitable for the low-load operation of the refrigeration equipment 1. The outer wall of the housing 21 of the compressor 20 is provided with at least six terminals 22. These terminals 22 are electrically connected to the windings of the motor 23. By combining and activating different terminals 22, different coils in the motor 23 can be activated accordingly, thereby controlling the compressor 20 to operate at the first speed or the second speed. As an example, compressor 20 includes a fixed-frequency compressor, and motor 23 includes a single-phase asynchronous motor. By connecting different terminals 22, compressor 20 can change the number of pole pairs of motor 23 and thus change the operating speed of compressor 20.

[0047] The speed control device 10 is equipped with connectors that correspond one-to-one with the terminals 22 of the compressor 20. By electrically connecting the terminals 22 of the compressor 20 to the connectors of the speed control device 10, the speed control device 10 can control the combination of different connectors to achieve the conduction of the corresponding terminals 22, thereby enabling the switching of the operating speed of the compressor 20. In this way, the speed control device 10 only needs to be plugged into the corresponding terminals 22 of the compressor 20 to complete the wiring, which simplifies the wiring method for switching the operating speed of the compressor 20 between high-load and low-load conditions, thereby reducing the failure rate and maintenance difficulty of the refrigeration equipment 1 and improving user satisfaction.

[0048] Specifically, refrigeration equipment 1 is Figure 1Taking the refrigerator shown as an example, during refrigerator use, the rated input voltage of compressor 20 is 220V and the frequency is 50Hz. The first speed of compressor 20 can reach 3000r / min, and the second speed can reach 1500r / min. High-load conditions for the refrigerator include scenarios such as the refrigerator being at an ambient temperature of 25℃ or higher, the user opening the door to put in a large amount of food, or the user frequently opening and closing the door. In these situations, the main control board 30 can identify that the refrigerator is in a high-load condition and drive the speed control device 10 to make compressor 20 run at the first speed. Low-load conditions for the refrigerator include scenarios such as the refrigerator being at an ambient temperature of 25℃ or lower, the amount of food stored in the refrigerator's cooling compartment decreasing, or the door not being opened for a long time. In these situations, the main control board 30 can identify that the refrigerator is in a low-load condition and drive the speed control device 10 to make compressor 20 run at the second speed to reduce the refrigerator's energy consumption and operating noise.

[0049] Understandably, the compressor 20 may also have a third speed less than the second speed, a fourth speed less than the third speed, a fifth speed greater than the first speed, or a sixth speed greater than the fifth speed, etc., and this application does not impose any restrictions.

[0050] The speed regulating device 10 provided in this application will now be described in conjunction with the accompanying drawings.

[0051] See Figures 3 to 5 This application provides a speed regulating device 10, including a connecting assembly 11, a starting assembly 12, and a switching assembly 13. The connecting assembly 11 includes at least six connectors, namely a first connector 111, a second connector 112, a third connector 113, a fourth connector 114, a fifth connector 115, and a sixth connector 116 arranged sequentially at intervals. The first connector 111 is used for electrical connection to a live wire 2. One end 123 of the starting assembly is electrically connected to the fifth connector 115, and the other end 124 of the starting assembly is used for electrical connection to a neutral wire 3. The switching assembly 13 is connected between the connecting assembly 11 and the starting assembly 12. The speed regulating device 10 has a first speed and a second speed less than the first speed. In the first speed state, the switching assembly 13 is configured such that the second connector 112 and the fourth connector 114 are respectively connected to the first connector 111, the third connector 113 is connected to the other end 124 of the starting assembly, and the sixth connector 116 is connected to the fifth connector 115. In the second speed state, the switch assembly 13 is configured such that the sixth connector 116 is connected to the first connector 111, the second connector 112 is connected to the other end 124 of the start assembly, and the third connector 113 and the fourth connector 114 are disconnected respectively.

[0052] It should be noted that at least six connectors are installed and electrically connected to each terminal 22 of the compressor 20. The starting assembly 12 is used to assist the compressor 20 in starting smoothly and to prevent the compressor 20 from being overloaded or damaged. The switching assembly 13 is used to combine different connectors to conduct according to high load conditions and low load conditions, so that the compressor 20 can run at a first speed or a second speed.

[0053] The first connector 111 can be used to connect the live wire 2, and the other end 124 of the starting component can be used to connect the neutral wire 3. The second connector 112 to the sixth connector 116 can be connected to the first connector 111 and the starting component 12 respectively through the switch component 13. Simultaneously, each connector is also connected to the terminal 22 of the compressor 20, allowing the windings within the compressor 20 to be connected between the live wire 2 and the neutral wire 3, thereby forming a current loop between the speed control device 10 and the terminal 22 of the compressor 20. Thus, this application can switch the conduction relationship between the connectors through the speed control device 10 to achieve the conduction of different windings within the compressor 20, thereby enabling the compressor 20 to switch its operating speed between high-load and low-load conditions.

[0054] Specifically, in the first speed state, the switching assembly 13 is configured such that the second connector 112 and the fourth connector 114 are respectively connected to the first connector 111, the third connector 113 is connected to the other end 124 of the starting assembly, and the sixth connector 116 is connected to the fifth connector 115. Understandably, the first connector 111, the second connector 112, and the fourth connector 114 serve as the current input side connected to the live wire 2, and the third connector 113 serves as the current output side connected to the neutral wire 3. The speed regulating device 10 can then connect the compressor 20 to the first winding between the current input side and the current output side, thereby achieving operation at the first speed.

[0055] In the second speed state, the switching assembly 13 is configured such that the sixth connector 116 is connected to the first connector 111, the second connector 112 is connected to the other end 124 of the starting assembly, and the third connector 113 and the fourth connector 114 are disconnected. Understandably, the first connector 111 and the sixth connector 116 serve as the current input side connected to the live wire 2, and the second connector 112 serves as the current output side connected to the neutral wire 3. The speed regulating device 10 can then connect the compressor 20 to the second winding between the current input side and the current output side, thereby achieving operation at the second speed. As an example, the number of pole pairs of the motor 23 within the compressor 20 in the second speed state is greater than the number of pole pairs in the first state, so that the compressor 20 has two different speeds. Understandably, the number of pole pairs of the motor 23 within the compressor 20 in the second speed state can be a multiple of the number of pole pairs in the first state, and this application does not impose any limitations.

[0056] Thus, when using the speed control device 10 provided in this application, the wiring for switching the operating speed of the compressor 20 can be completed simply by electrically connecting each connector to the corresponding terminal 22 extending from the compressor 20. The wiring is simple and convenient, and the failure rate of the refrigeration equipment 1 is low. If a speed switching failure of the compressor 20 occurs during the operation of the refrigeration equipment 1, maintenance personnel can also directly troubleshoot and repair the speed control device 10, thereby reducing maintenance difficulty and improving user satisfaction.

[0057] Furthermore, the speed control device 10 provided in this application can be equipped with connectors corresponding to the terminals 22 of the compressor 20 and the wiring method of the connectors can be arranged, so that the speed control device 10 can be mass-produced as an independent integrated module. In this way, the speed control device 10 and the compressor 20 can be processed and assembled simultaneously on different production lines, thereby reducing the wiring difficulty of the compressor 20 and improving the production efficiency of the refrigeration equipment 1.

[0058] See Figures 3 to 5 In some embodiments, to facilitate the smooth start-up and stable operation of the compressor 20, the starting assembly 12 includes a starter 122 and / or a capacitor 121. The starter 122 and the capacitor 121 are connected in parallel. One end 123 of the parallel connection is electrically connected to the fifth connector 115, and the other end 124 of the parallel connection is used to electrically connect to the neutral wire 3.

[0059] It should be noted that the starter 122 includes a PTC starter, the resistance of which is directly proportional to temperature. When the compressor 20 starts, the PTC starter is connected in series with the winding inside the compressor 20. When current flows through it, it heats the PTC starter, causing its resistance to gradually increase, thereby reducing the current until it is automatically cut off, thus providing circuit protection.

[0060] The starting assembly 12 may also include a capacitor 121, which can be used to improve the starting efficiency and stable operation of the compressor 20. Understandably, the capacitor 121 can provide additional phase displacement during compressor 20 startup, increasing starting torque and enabling the compressor 20 to start smoothly. The capacitor 121 can also balance the current during compressor 20 operation, reducing the starting current of the compressor 20 and making the compressor 20 work more efficiently and stably. Thus, the starting assembly 12, through the starter 122 and the capacitor 121 connected in parallel with the starter 122, can assist the compressor 20 in starting smoothly and operating stably.

[0061] In other embodiments, the startup component 12 may also include a thermal protector, which is not limited in this application.

[0062] See Figures 3 to 5In some embodiments, to facilitate control of the conduction paths of each connector, the switch assembly 13 includes a first switch 131, a second switch 132, a third switch 133, and a fourth switch 134. The first switch 131 is electrically connected between the second connector 112, the first connector 111, and the other end 124 of the starting assembly, allowing the second connector 112 to switch conduction with the first connector 111 and the other end 124 of the starting assembly. The second switch 132 is electrically connected between the third connector 113 and the other end 124 of the starting assembly, allowing the third connector 113 to conduct or disconnect from the other end 124 of the starting assembly. The third switch 133 is electrically connected between the fourth connector 114 and the first connector 111, allowing the fourth connector 114 to conduct or disconnect from the first connector 111. The fourth switch 134 is electrically connected between the sixth connector 116, the first connector 111 and the fifth connector 115, so that the sixth connector 116 is switched to conduct with the first connector 111 and the fifth connector 115.

[0063] It should be noted that the first switch 131, the second switch 132, the third switch 133 and the fourth switch 134 can be relay switches, remote sensing switches, photoelectric switches or metal spring switches, etc., and this application does not impose any restrictions.

[0064] See Figure 6 In some embodiments, to achieve miniaturization of the speed regulating device 10, the first switch element 131 and the fourth switch element 134 can be integrated into a double-pole double-throw switch 135, and the second switch element 132 and the third switch element 133 can be integrated into a double-pole single-throw switch 136. Meanwhile, the switch assembly 13 also includes a power supply 137, which can be used to supply power to the double-pole double-throw switch 135 and the double-pole single-throw switch 136.

[0065] See Figures 6 to 9 In some embodiments, to simplify the electrical connections between the components, the speed control device 10 further includes a circuit board 14, on which at least one of the starting component 12, the switching component 13, and the connecting component 11 is integrated.

[0066] This configuration allows the circuit board 14 to provide support and fixation for each component. At the same time, using the circuit board 14 to centrally set up multiple components can reduce the complexity of wiring, making the installation, maintenance and replacement of the speed control device 10 more convenient.

[0067] Furthermore, as a separate unit, circuit board 14 can be uniformly programmed according to the wiring method of speed control device 10, which simplifies the production and maintenance of speed control device 10. Understandably, circuit board 14 can be a single-sided board, double-sided board, multi-layer board, or flexible circuit board, etc., and this application does not impose any limitations.

[0068] SeeFigure 6 In some embodiments, to facilitate the connection of the speed regulating device 10 to the live wire 2 and the neutral wire 3, the speed regulating device 10 further includes a power supply component 15. The power supply component 15 includes a live wire end 151 electrically connected to the first connector 111 and a neutral wire end 152 electrically connected to the other end 124 of the starting component. With this configuration, the first connector 111 can be electrically connected to the live wire 2 through the live wire end 151, and the other end 124 of the starting component can be electrically connected to the neutral wire 3 through the neutral wire end 152, so as to provide power to the speed regulating device 10.

[0069] See Figure 6 In some embodiments, the power supply component 15 may be integrated with the starting component 12. This configuration enables the miniaturization of the speed control device 10 and simplifies the connection between the power supply component 15 and the starting component 12.

[0070] In other embodiments, the starter 122 component and the power supply component 15 may also be installed on the compressor 20, which is not a limitation of this application.

[0071] See Figure 6 In some embodiments, when the connecting component 11 is integrated into the circuit board 14, to facilitate the connection between the speed control device 10 and the terminal 22 of the compressor 20, the circuit board 14 is also provided with plug-in pieces 145 corresponding to at least six connectors. The plug-in pieces 145 are used to plug into the terminal 22 on the outer wall of the compressor housing 21, so that the speed control device 10 and the compressor 20 are electrically connected. With this configuration, the terminal 22 of the compressor 20 can be electrically connected to the connector by inserting into the plug-in piece 145, thereby establishing the connection circuit between the speed control device 10 and the compressor 20.

[0072] Understandably, the connector 145 may protrude from the circuit board 14 to connect with the terminal block 22, and this application does not impose any limitation on this.

[0073] See Figure 7 In some embodiments, to protect the circuit board 14 and the components, the speed regulating device 10 further includes a mounting housing 17. The mounting housing 17 has a mounting cavity, and the circuit board 14 is disposed in the mounting cavity. The outer wall of the mounting housing 17 is provided with mounting members 171 that are electrically connected to at least six connectors one by one. The mounting members 171 are used to be plugged into the terminals 22 provided on the outer wall of the housing 21 of the compressor 20 one by one. The connection between the terminals 22 and the mounting members 171 connects the mounting housing 17 to the housing 21 of the compressor 20 and conducts the connection circuit between each connector and the terminal 22.

[0074] With this configuration, simply plugging the mounting part 171 of the mounting housing 17 into the corresponding terminal 22 of the compressor 20 will establish the connection circuit between the speed control device 10 and the compressor 20. Thus, by plugging the mounting part 171 into the terminal 22, both a mechanical connection and a circuit connection between the speed control device 10 and the compressor 20 can be achieved. The speed control device 10 and the compressor 20 are plug-and-play, saving time and effort and making assembly convenient.

[0075] See Figure 7 In some embodiments, to prevent incorrect insertion of the speed control device 10 and the compressor 20, the mounting member 171 is provided with a mounting hole 172 for insertion into the terminal block 22, and the mounting housing 17 is also provided with a mounting groove 173 spaced apart from the mounting member 171, the mounting groove 173 being formed along the depth direction of the mounting hole 172. Correspondingly, the compressor 20 may be provided with a tongue corresponding to the mounting groove 173. Through the guidance of the tongue and the mounting groove 173, the terminal block 22 can be inserted into the mounting hole 172 one by one, thereby preventing incorrect installation.

[0076] See Figure 2 , Figure 6 and Figure 7 In some embodiments, the terminals 22 on the compressor 20 are arranged in a ring, and the connectors on the speed control device 10 are also arranged in a corresponding ring. The mounting parts 171 on the mounting housing 17 are also arranged in a ring corresponding to the connectors. With this arrangement, after the speed control device 10 and the compressor 20 are plugged in and assembled, the contact area between the speed control device 10 and the compressor 20 is larger, which can improve the connection stability and thus improve the reliability of the circuit connection.

[0077] Of course, in other embodiments, each terminal 22 may also be arranged in a linear, triangular, quadrilateral, pentagonal or other shape, and this application does not impose any restrictions.

[0078] In some embodiments, to facilitate the electrical connection between the starting component 12 and the circuit board 14, the speed regulating device 10 further includes a connecting housing 16. The starter 122 and the capacitor 121 are integrated in parallel within the connecting housing 16. One of the connecting housing 16 and the circuit board 14 is provided with a connecting hole, and the other is provided with a connecting post corresponding to the connecting hole. The connecting post is inserted into the connecting hole to conduct the connection circuit between the circuit board 14 and the starter 122 and the capacitor 121. With this configuration, only the connecting housing 16 and the circuit board 14 need to be assembled to complete the assembly of the starter 122 and the capacitor 121 with the circuit board 14, which can further improve assembly efficiency.

[0079] In some embodiments, the starting component 12 may also be disposed on the compressor 20, and the circuit board 14 is provided with a starter contact 142 and / or a capacitor contact 141 so that after the compressor 20 is plugged into the speed control device 10, the starting component 12 can be electrically connected to the circuit board 14 through the starter contact 142 and / or the capacitor contact 141.

[0080] See Figure 8 In some embodiments, the starter 122 and capacitor 121 can be separately configured and electrically connected to the circuit board 14 respectively. That is, the circuit board 14 is provided with a starter contact 142 and / or a capacitor contact 141. The starter 122 is connected to the starter contact 142 to be integrated into the circuit board 14, and the capacitor 121 is connected to the capacitor contact 141 to be integrated into the circuit board 14. This configuration facilitates the separate maintenance and replacement of the starter 122 or the capacitor 121.

[0081] Of course, in other embodiments, the starter 122 can be integrated with the circuit board 14, and the capacitor 121 can be located in the compressor 20. Alternatively, the capacitor 121 can be integrated with the circuit board 14, and the starter 122 can be located in the compressor 20. Thus, the capacitor 121 and the starter 122 can be flexibly configured, and this application does not impose any limitations.

[0082] See Figure 8 In some embodiments, the connectors and the circuit board 14 can also be connected by wires. That is, the circuit board 14 is also provided with terminals 146 corresponding to at least six connectors. The at least six connectors are configured as connecting wires. The connection assembly 11 also includes two connectors 117. Each connector 117 is provided with three sockets 118. The first connector 111, the second connector 112 and the third connector 113 are respectively connected to the three sockets 118 of one of the connectors 117. The fourth connector 114, the fifth connector 115 and the sixth connector 116 are respectively connected to the three sockets 118 of the other connector 117. The two connectors 117 are used to be plugged into the terminals 22 provided on the housing 21 of the compressor 20 through the sockets 118 so that the speed control device 10 is electrically connected to the compressor 20.

[0083] With this setup, taking the speed control device 10 as an example with six connectors, the three connectors arranged in sequence form a group, and the six connectors are divided into two groups. After the speed control device 10 is wired to the compressor 20, if the compressor 20 experiences a speed switching fault, the maintenance personnel do not need to check each of the six connectors one by one. They only need to determine that the fault is in one of the two groups and check the three connectors in the faulty group. This reduces the difficulty of maintenance and improves maintenance efficiency.

[0084] See Figure 8In some embodiments, the power supply 137 in the switch assembly 13 for supplying power to each switch element can also be integrated with the power supply assembly 15.

[0085] See Figure 9 ,and Figure 8 The speed regulating device 10 shown is different in that... Figure 9 In the speed control device 10 shown, the speed control device 10 can be powered by the main control board 30 of the refrigeration equipment 1. That is, the circuit board 14 of the speed control device 10 is provided with a live wire contact 143 and a neutral wire contact 144. The first connector 111 is electrically connected to the live wire contact 143, and the other end 124 of the starting component is electrically connected to the neutral wire contact 144. The live wire contact 143 and the neutral wire contact 144 are used to electrically connect to the main control board 30. With this configuration, the speed control device 10 can be directly powered and controlled by the refrigeration equipment 1 without the need for an additional power supply connection.

[0086] Of course, in other embodiments, the speed regulating device 10 may also be equipped with a backup power supply, and this application does not impose any restrictions.

[0087] The technical solutions or features described in the above embodiments can be combined or complemented by each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings. All modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A speed regulation device, characterized in that, The speed regulating device comprises: a connecting assembly comprising at least six connecting pieces, the at least six connecting pieces comprising a first connecting piece, a second connecting piece, a third connecting piece, a fourth connecting piece, a fifth connecting piece and a sixth connecting piece arranged in sequence and at intervals, the first connecting piece being used for electrical connection with a live wire; a starting assembly, one end of the starting assembly being electrically connected with the fifth connecting piece, and the other end of the starting assembly being used for electrical connection with a zero wire; a switch assembly connected between the connecting assembly and the starting assembly; wherein the speed regulating device has a first speed and a second speed smaller than the first speed; in the first speed state, the switch assembly is configured such that the second connecting piece and the fourth connecting piece are respectively in conduction with the first connecting piece, the third connecting piece is in conduction with the other end of the starting assembly, and the sixth connecting piece is in conduction with the fifth connecting piece; in the second speed state, the switch assembly is configured such that the sixth connecting piece is in conduction with the first connecting piece, the second connecting piece is in conduction with the other end of the starting assembly, and the third connecting piece and the fourth connecting piece are respectively disconnected. The switch assembly comprises:

2. The speed regulation device of claim 1, wherein a first switch piece electrically connected between the second connecting piece, the first connecting piece and the other end of the starting assembly, so as to switch the second connecting piece to be in conduction with the first connecting piece and the other end of the starting assembly; a second switch piece electrically connected between the third connecting piece and one end of the starting assembly, so as to make the third connecting piece in conduction with or disconnected from the other end of the starting assembly; a third switch piece electrically connected between the fourth connecting piece and the first connecting piece, so as to make the fourth connecting piece in conduction with or disconnected from the first connecting piece; a fourth switch piece electrically connected between the sixth connecting piece, the first connecting piece and the fifth connecting piece, so as to switch the sixth connecting piece to be in conduction with the first connecting piece and the fifth connecting piece. The speed regulating device further comprises a circuit board, and at least one of the starting assembly, the switch assembly and the connecting assembly is arranged on the circuit board.

3. The speed regulation device of claim 2, wherein The speed regulating device further comprises a power supply assembly, the power supply assembly comprising a live wire end electrically connected with the first connecting piece and a zero wire end electrically connected with the other end of the starting assembly, and the power supply assembly is arranged on the circuit board together with the starting assembly.

4. The speed regulation device of claim 3, wherein The circuit board is provided with a live wire contact point and a zero wire contact point, the first connecting piece is electrically connected with the live wire contact point, and one end of the starting assembly is electrically connected with the zero wire contact point, and the live wire contact point and the zero wire contact point are used for electrical connection with a main control board.

5. The speed regulation device of claim 3, wherein The starting assembly comprises a starter and / or a capacitor, the starter and the capacitor are arranged in parallel, one end of the parallel connection of the starter and the capacitor is electrically connected with the fifth connecting piece, and the other end of the parallel connection of the starter and the capacitor is used for electrical connection with a zero wire.

6. The speed regulation device of claim 3, wherein The circuit board is provided with a starter contact point and / or a capacitor contact point, the starter is connected with the starter contact point to be integrated into the circuit board, and the capacitor is connected with the capacitor contact point to be integrated into the circuit board.

7. The speed regulation device of claim 6, wherein ​ Alternatively, the speed regulating device further comprises a connecting shell, the starter and the capacitor are integrated in the connecting shell in parallel, one of the connecting shell and the circuit board is provided with a connecting hole, and the other is provided with a connecting column corresponding to the connecting hole, the connecting column is inserted into the connecting hole to conduct the connecting circuit between the circuit board and the starter and the capacitor.

8. A speed regulation device according to any one of claims 3 to 7, characterised in that, The circuit board is further provided with a plug-in piece corresponding to each of the at least six connecting pieces, the plug-in piece is used for plug-in corresponding to the wiring column provided on the outer wall of the compressor shell, so that the speed regulating device is electrically connected with the compressor. Alternatively, the circuit board is further provided with a wiring terminal corresponding to each of the at least six connecting pieces, the at least six connecting pieces are provided as connecting wires, and the connecting assembly further comprises two connecting seats.

9. The speed regulation device of claim 3, wherein The speed regulating device further comprises a mounting shell, the mounting shell is provided with a mounting cavity, the circuit board is arranged in the mounting cavity, and the outer wall of the mounting shell is provided with a mounting piece electrically connected with each of the at least six connecting pieces, the mounting piece is used for plug-in corresponding to the wiring column provided on the outer wall of the compressor shell, and the plug-in of the wiring column and the mounting piece enables the mounting shell to be connected to the compressor shell and conduct the connecting circuit between each connecting piece and the wiring column.

10. A refrigeration appliance characterized in that, The compressor comprises a shell provided with a containing cavity, a motor arranged in the shell, and at least six wiring columns arranged on the outer wall of the shell, each of the wiring columns is electrically connected with each connecting piece, and the wiring column is further electrically connected with the winding of the motor, the speed regulating device is electrically connected with the main control board, so that the compressor operates at the first speed or the second speed.

Images