Heating device and clothes treating device

Abstract

The utility model relates to the technical field of circuits, in particular to a heating device and a clothes processing device, which comprises a first heater, a second heater and a first switch, the first switch comprises a first contact, a second contact and a movable contact, the first contact is communicated with the first heater, the second contact is communicated with the second heater, and the movable contact is communicated with a power supply; the movable contact can be in contact with one of the first contact and the second contact; when the movable contact is in contact with the first contact, the first heater is in a working state; the second heater is in a non-working state; and when the movable contact is in contact with the second contact, the first heater is in a non-working state, and the second heater is in a non-working state or a working state. Therefore, the working states of the two heaters are respectively controlled by moving the contact to be in contact with different contacts. In this way, one heater can be selectively activated according to needs, it is ensured that the two heaters cannot work at the same time, and therefore the problem of circuit burning possibly caused by too large power is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of circuits, and in particular to a heating device and a clothing processing device. Background Art

[0002] During the drying cycle of a laundry machine, the drying heater activates to generate heat, transferring heat and drying the clothes. During the washing cycle, the washing heater activates to generate heat, transferring heat and heating the wash water. The drying and washing heaters draw significant power. Activating both heaters simultaneously, either by mistake or by mistake, can result in excessive power consumption and burn out the circuitry. Utility Model Content

[0003] According to a first aspect of the present invention, a heating device is provided, comprising:

[0004] A first heater, a second heater, and a first switch, wherein the first switch includes a first contact, a second contact, and a moving contact, the first contact being connected to the first heater, the second contact being connected to the second heater, and the moving contact being connected to a power source; the moving contact being capable of selectively contacting either the first contact or the second contact;

[0005] When the movable contact contacts the first contact, the first heater is in an operating state; and the second heater is in an inoperative state;

[0006] When the moving contact point contacts the second contact point, the first heater is in a non-operating state, and the second heater is in a non-operating state or an operating state.

[0007] Optionally, the heating device further includes a first switch control circuit, wherein the first switch control circuit includes a first diode, a first resistor and inductor RL circuit, and a first transistor.

[0008] One side of the first resistor-inductor RL circuit is connected to the anode of the first diode, the other side of the first resistor-inductor RL circuit is connected to the cathode of the first diode, and the cathode of the first diode is connected to a first voltage source;

[0009] The anode of the first diode is connected to the collector of the first transistor, the emitter of the first transistor is grounded, and the base of the first transistor is connected to the first heater working signal;

[0010] The first switch control circuit is used for:

[0011] The base of the first transistor receives the first heater operating signal to control the moving contact to contact the first contact or the second contact.

[0012] Optionally, the heating device further includes a second switch, wherein the second switch includes a first common terminal and a third contact;

[0013] The second contact is connected to the second heater, comprising: the second contact is connected to the first common end; the third contact is connected to the second heater;

[0014] When the movable contact contacts the second contact, the first heater is in a non-operating state, and the second heater is in a non-operating state or an operating state, including:

[0015] When the movable contact contacts the second contact, and the first common terminal contacts the third contact, the first heater is in an off-state and the second heater is in an on-state;

[0016] When the moving contact is in contact with the second contact, and the first common terminal is not in contact with the third contact, the first heater is in a non-operating state, and the second heater is in a non-operating state.

[0017] Optionally, the heating device further includes a second switch control circuit, wherein the second switch control circuit includes a second diode, a second resistor and inductor RL circuit, and a second transistor.

[0018] One side of the second resistor-inductor RL circuit is connected to the anode of the second diode, the other side of the second resistor-inductor RL circuit is connected to the cathode of the second diode, and the cathode of the second diode is connected to a second voltage source;

[0019] The anode of the second diode is connected to the collector of the second transistor, the emitter of the second transistor is grounded, and the base of the second transistor is connected to the second heater working signal;

[0020] The second switch control circuit is used for:

[0021] The base of the second transistor receives the second heater operating signal to control the contact between the first common terminal and the third contact point.

[0022] Optionally, the heating device further includes a second switch, a third switch and a fan, wherein the second switch includes a first common terminal and a third contact; the third switch includes a second common terminal and a fourth contact;

[0023] The second contact is connected to the second heater, including: the second contact is connected to the second common terminal; the fourth contact is connected to a parallel circuit including a first branch and a second branch; the first branch includes the fan, and the second branch includes the second switch and the second heater connected in sequence; wherein the fourth contact is connected to the first common terminal, and the third contact is connected to the second heater;

[0024] When the movable contact contacts the second contact, the first heater is in a non-operating state, and the second heater is in a non-operating state or an operating state, including:

[0025] When the movable contact contacts the second contact, the first common terminal contacts the third contact, and the second common terminal contacts the fourth contact, the first heater is in an off-state, and the second heater and the fan are in an on-state;

[0026] The first heater is used to heat water, the second heater is used to heat air, and the fan is used to promote the flow of the air heated by the second heater.

[0027] Optionally, the heating device further includes a second switch control circuit and a third switch control circuit, wherein the second switch control circuit includes a second diode, a second resistor and inductor RL circuit, and a second transistor; and the third switch control circuit includes a third diode, a third resistor and inductor RL circuit, and a third transistor.

[0028] One side of the second resistor-inductor RL circuit is connected to the anode of the second diode, the other side of the second resistor-inductor RL circuit is connected to the cathode of the second diode, and the cathode of the second diode is connected to a second voltage source;

[0029] The anode of the second diode is connected to the collector of the second transistor, the emitter of the second transistor is grounded, and the base of the second transistor is connected to the second heater working signal;

[0030] The second switch control circuit is used for:

[0031] Based on the base of the second transistor receiving the second heater working signal, the first common terminal is controlled to contact the third contact point;

[0032] One side of the third resistor-inductor RL circuit is connected to the anode of the third diode, the other side of the third resistor-inductor RL circuit is connected to the cathode of the third diode, and the cathode of the third diode is connected to a third voltage source;

[0033] The anode of the third diode is connected to the collector of the third transistor, the emitter of the third transistor is grounded, and the base of the third transistor is connected to the fan working signal;

[0034] The third switch control circuit is used for:

[0035] The base of the third transistor receives the fan operation signal to control the contact between the second common terminal and the fourth contact point.

[0036] Optionally, the first switch is a single-pole double-throw switch.

[0037] Optionally, the first switch is a single-pole double-throw switch, and the second switch is a relay.

[0038] Optionally, the first switch is a single-pole double-throw switch, the second switch is a relay, and the third switch is a relay.

[0039] Optionally, the first contact is a normally open contact, and the second contact is a normally closed contact.

[0040] According to a second aspect of the present invention, a clothing processing device is provided, comprising: a heating device as described in any one of the first aspects above, wherein the first heater contacts the water in the washing tub in the clothing processing device and is used to heat the water in the washing tub; and the second heater is used to heat the air.

[0041] The disclosed embodiment has the beneficial effect of controlling the operating states of the two heaters (the first heater and the second heater) separately by moving the contact point to contact different contacts. This allows selective activation of one heater as needed while ensuring that both heaters do not operate simultaneously, thereby avoiding the problem of circuit burnout caused by excessive power.

[0042] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0044] Figure 1 A schematic structural diagram of a first heating device provided by an embodiment of the present utility model;

[0045] Figure 2 A schematic structural diagram of a second heating device provided in an embodiment of the present utility model;

[0046] Figure 3A schematic structural diagram of a third heating device provided by an embodiment of the present utility model;

[0047] Figure 4 A schematic structural diagram of a fourth heating device provided by an embodiment of the present utility model;

[0048] Figure 5 A schematic structural diagram of a fifth heating device provided by an embodiment of the present utility model;

[0049] Figure 6 A schematic structural diagram of a sixth heating device provided by an embodiment of the present utility model;

[0050] Figure 7 A schematic structural diagram of a seventh heating device provided by an embodiment of the present utility model;

[0051] Figure 8 A schematic structural diagram of an eighth heating device provided by an embodiment of the present utility model;

[0052] Figure 9 A schematic structural diagram of a ninth heating device provided by an embodiment of the present utility model;

[0053] Figure 10 A schematic structural diagram of a tenth heating device provided by an embodiment of the present utility model;

[0054] Figure 11 A schematic structural diagram of a clothes treating device according to an embodiment of the present application from one angle;

[0055] Figure 12 This is a schematic structural diagram from another angle of a clothes processing device according to an embodiment of the present application. DETAILED DESCRIPTION

[0056] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all variations, modifications, and equivalents that fall within the spirit and scope of the appended claims.

[0057] The present invention will be described in detail below with reference to specific embodiments.

[0058] Figure 1 This is a schematic structural diagram of the first heating device provided in an embodiment of the present utility model.

[0059] like Figure 1As shown, the heating device comprises:

[0060] A first heater, a second heater, and a first switch, wherein the first switch includes a first contact, a second contact, and a moving contact, wherein the first contact is connected to the first heater, the second contact is connected to the second heater, and the moving contact is connected to a power source; the moving contact can selectively contact with either the first contact or the second contact;

[0061] When the moving contact contacts the first contact, the first heater is in the working state; and the second heater is in the non-working state; when the moving contact contacts the second contact, the first heater is in the non-working state, and the second heater is in the non-working state or the working state.

[0062] The heating device in the embodiments of the present application can be a heating device in a household appliance, particularly a heating device in a household appliance with both washing and drying functions. As one possible implementation, the first heater can be a heater used during the washing process, and the second heater can be a heater used during the drying process. Alternatively, the first heater can be a heater used during the drying process, and the second heater can be a heater used during the washing process.

[0063] For example, the first heater and the second heater in the embodiment of the present application may be heating tubes, heat pumps, etc., and the embodiment of the present application does not limit this.

[0064] like Figure 1 As shown in the figure, A represents the first contact, B represents the second contact, and C represents the moving contact. ACN represents the Alternating Current Neutral, also known as the AC zero line. ACL represents the Alternating Current Line, also known as the AC live line.

[0065] The movable contact C can optionally contact the first contact A, thereby connecting the first heater to a power source and putting it into operation. Since the movable contact C cannot contact the second contact B when it contacts the first contact A, the second heater cannot be connected to a power source in this case and is therefore not in operation.

[0066] Similarly, the moving contact C can optionally contact the second contact B. Since the moving contact C cannot contact the first contact A when in contact with the second contact B, the first heater loses power and is therefore not operating. When the moving contact C and the second contact B are in contact, the second heater can be either operating or non-operating.

[0067] Optionally, the first switch may be a single-pole double-throw switch, wherein the single-pole double-throw switch comprises a movable contact (moving contact) and two stationary contacts (a first contact and a second contact).

[0068] In a heating device, for example, when the first switch is switched to the first throw (the moving contact contacts the first contact), the first heater is powered on and starts working, and when the first switch is switched to the second throw (the moving contact contacts the second contact), the first heater is powered off and stops working.

[0069] Optionally, the first contact is a normally open contact, and the second contact is a normally closed contact.

[0070] Among them, the characteristic of normally open contacts is that they are in an open (disconnected) state when not activated or powered, that is, current cannot pass through the contact. When subjected to external stimulation (such as current, voltage, signal, etc.), the contacts will close and allow current to pass.

[0071] The characteristic of a normally closed contact is that it is in a closed state when it is not activated or powered, that is, current can pass through the contact. When it is stimulated externally, the contact will open and interrupt the current.

[0072] It should be noted that when no external force is applied (i.e., the moving contact is not in contact with the first contact), the first contact is open and the second contact is closed, so the first heater does not receive power and is in an inoperative state. When the moving contact is operated to contact the first contact, the circuit is closed, the first heater receives power and begins to operate. Although the second contact is closed, the second heater may be in an operative state or an inoperative state because it may be affected by other control elements between the second contact and the second heater.

[0073] In summary, through Figure 1 The circuit design shown can prevent the two heaters from being turned on by mistake or incorrectly, which may cause overpower and burn out the circuit.

[0074] Figure 2 This is a schematic structural diagram of a second heating device provided in an embodiment of the present utility model.

[0075] like Figure 2 As shown, the heating device comprises:

[0076] A first heater, a second heater, a first switch and a first switch control circuit, wherein the first switch control circuit includes a first diode, a first resistor and inductor RL circuit and a first transistor.

[0077] like Figure 2As shown, one side of the first resistor-inductor RL circuit is connected to the anode of the first diode, and the other side of the first resistor-inductor RL circuit is connected to the cathode of the first diode, which is connected to a first voltage source. The anode of the first diode is connected to the collector of the first transistor, the emitter of the first transistor is grounded, and the base of the first transistor is connected to the first heater operating signal.

[0078] Among them, D represents the anode of the first diode, E represents the cathode of the first diode, G represents the emitter of the first transistor, F represents the emitter of the first transistor, H represents the base of the first transistor, which can receive the first heater working signal, and VCC1 represents the first voltage source.

[0079] Optionally, the first switch control circuit is configured to:

[0080] The base of the first transistor receives the first heater operating signal to control the moving contact to contact the first contact or the second contact.

[0081] It should be noted that the operation of the first switch control circuit mainly depends on the interaction of the first diode, the first resistor-inductor (RL) circuit, and the first transistor, combined with the external first heater operating signal and the first voltage source to achieve control of the heater operating state.

[0082] The first heater operating signal may control the first heater to operate, or control the first heater to stop operating, which is not limited here.

[0083] It should be noted that if the first heater working signal is to control the first heater to work, the first switch control circuit can control the moving contact and the first contact to contact each other. If the first heater working signal is to control the first heater to stop working, the first switch control circuit can control the moving contact and the second contact to contact each other.

[0084] Among them, the first diode serves as a unidirectional conductive element, with its anode connected to one side of the first resistor and inductor RL circuit and its cathode connected to the first voltage source. This ensures that current can only flow from the first voltage source to the first resistor and inductor RL circuit, preventing reverse current from damaging the circuit.

[0085] Among them, the first RL circuit is composed of a resistance element and an inductance element, which is used to limit the rate of change of current and prevent sudden current changes from impacting the circuit. Its two sides are respectively connected to the anode and cathode of the first diode to form a current path.

[0086] The first transistor serves as a switching element, wherein the collector is connected to the anode of the first diode, the emitter is grounded, and the base receives the first heater operating signal. The switching state of the first transistor is controlled by the signal received at the base.

[0087] It should be noted that when the first heater operating signal is at a high level (or activated state):

[0088] The first heater operating signal passes through the base, turning on the first transistor. This creates a low-resistance path between the collector and emitter of the first transistor. Since the first transistor is conducting, current in the first resistor-inductor (RL) circuit can flow through the collector of the first transistor to the emitter (i.e., ground). However, due to the presence of the first resistor-inductor (RL) circuit, the rate of change of the current is limited, preventing sudden changes. During this process, the first transistor's on-state causes the moving contact to contact the first contact, allowing current to flow through the first contact to the first heater, causing the first heater to begin operating.

[0089] It should be noted that when the first heater operating signal is at a low level (or inactive state):

[0090] The first heater operating signal passes through the base, turning off the first transistor. This creates a high-resistance state between the collector and emitter of the first transistor, with virtually no current flowing through it. Because the first transistor is off, the current in the first resistor-inductor (RL) circuit cannot flow through the first transistor to the emitter. However, the inductor in the first resistor-inductor (RL) circuit attempts to maintain the original current state, which may cause a brief voltage change (inductor back electromotive force), but the circuit then stabilizes. During this process, the mechanism controlling the moving contact responds to the transistor's off state, causing the moving contact to contact the second contact, thereby changing the current path or cutting off the heater's power supply, causing the first heater to cease operation.

[0091] In summary, through Figure 2 The circuit design shown can prevent the two heaters from being turned on by mistake or incorrectly, which may cause overpower and burn out the circuit. The working state of the first heater can be accurately adjusted through the first switch control circuit and the first heater working signal.

[0092] Figure 3 This is a schematic structural diagram of a third heating device provided in an embodiment of the present utility model.

[0093] like Figure 3 As shown, the heating device comprises:

[0094] a first heater, a second heater, a first switch, and a second switch, wherein the second switch includes a first common terminal and a third contact;

[0095] The second contact is connected to the second heater, including: the second contact is connected to the first common end; the third contact is connected to the second heater;

[0096] When the movable contact and the second contact are in contact, the first heater is in a non-operating state, and the second heater is in a non-operating state or an operating state, including:

[0097] When the movable contact contacts the second contact, and the first common terminal contacts the third contact, the first heater is in an off-state and the second heater is in an on-state;

[0098] When the movable contact is in contact with the second contact, and the first common terminal is not in contact with the third contact, the first heater is in a non-operating state, and the second heater is in a non-operating state.

[0099] The third contact is a fixed contact in the second switch.

[0100] The first common terminal acts as a bridge in the second switch and can be in contact with or not in contact with the third contact.

[0101] It should be noted that when the movable contact contacts the second contact, it cannot contact the first contact, and the first heater is not energized. Therefore, regardless of the contact state between the first common terminal and the third contact, the first heater is in a non-working state.

[0102] When the movable contact contacts the second contact and the first common terminal contacts the third contact, the second switch is in the on state. At this time, current can flow to the second heater through the first common terminal and the third contact of the second switch, so that the second heater is in the working state.

[0103] When the movable contact contacts the second contact and the first common terminal and the third contact are not in contact, the second switch is in an off state. Since the first common terminal and the third contact are not in contact, current cannot flow to the second heater, and thus the second heater is in an off state.

[0104] Optionally, the first switch is a single-pole double-throw switch, and the second switch is a relay.

[0105] Among them, a relay is an electrical control device that turns the controlled output circuit on or off when the input quantity (such as voltage or current) reaches a specified value. In the heating device, the second switch (relay) is used to control the operating state of the second heater. The relay coil can receive a control signal. When the control signal meets the conditions, the relay is energized, causing its contacts to close (the first common terminal and the third contact are in contact), thereby allowing current to flow and activating the second heater. When the control signal does not meet the conditions, the relay is released, the contacts are disconnected (the first common terminal and the third contact are not in contact), and the second heater stops working.

[0106] It should be noted that Figure 3The heating device shown controls the operating state of the second heater by moving the contact point. When the moving contact point contacts the second contact point, the second heater operates if the first common terminal and the third contact point are also in contact. If the first common terminal and the third contact point are not in contact, the second heater does not operate, thereby improving the flexibility and efficiency of the heating system.

[0107] Figure 4 This is a schematic structural diagram of a fourth heating device provided in an embodiment of the present utility model.

[0108] like Figure 4 As shown, the heating device comprises:

[0109] A first heater, a second heater, a first switch control circuit, a first switch and a second switch, the second switch includes a first common terminal and a third contact, the first switch control circuit includes a first diode, a first resistor and inductor RL circuit, and a first transistor.

[0110] It should be noted that Figure 4 The working mode of the circuit shown can refer to the above embodiments and will not be described in detail here. Figure 4 The circuit design shown here prevents the two heaters from activating inadvertently or incorrectly, potentially causing overpower burnout. The first switch control circuit and the first heater's operating signal precisely regulate the first heater's operating state. When the moving contact contacts the second contact, the second heater activates if the first common terminal and the third contact also touch. If the first common terminal and the third contact do not touch, the second heater deactivates, improving the heating system's flexibility and efficiency.

[0111] Figure 5 This is a structural schematic diagram of the fifth heating device provided in an embodiment of the present utility model.

[0112] like Figure 5 As shown, the heating device comprises:

[0113] A first heater, a second heater, a first switch, a second switch, a second switch control circuit, wherein the second switch control circuit includes a second diode, a second resistor and inductor RL circuit, and a second transistor.

[0114] One side of the second resistor-inductor RL circuit is connected to the anode of the second diode, the other side of the second resistor-inductor RL circuit is connected to the cathode of the second diode, and the cathode of the second diode is connected to the second voltage source;

[0115] The anode of the second diode is connected to the collector of the second triode, the emitter of the second triode is grounded, and the base of the second triode is connected to the second heater working signal.

[0116] Among them, O represents the anode of the second diode, P represents the cathode of the second diode, R represents the emitter of the second transistor, Q represents the collector of the second transistor, S represents the base of the second transistor, which can receive the second heater working signal, and VCC2 represents the second voltage source.

[0117] Optionally, the second switch control circuit is configured to:

[0118] The base of the second transistor receives the second heater operating signal to control the contact between the first common terminal and the third contact point.

[0119] It should be noted that the operation of the second switch control circuit mainly depends on the interaction of the second diode, the second resistor-inductor (RL) circuit, and the second transistor, combined with the external second heater operating signal and the second voltage source to achieve control of the heater working state.

[0120] The second heater operation signal may control the second heater to operate, which is not limited here.

[0121] Among them, the second diode serves as a unidirectional conductive element, with its anode connected to one side of the second resistor and inductor RL circuit and its cathode connected to the second voltage source. This ensures that current can only flow from the second voltage source to the second resistor and inductor RL circuit, preventing reverse current from damaging the circuit.

[0122] Among them, the second resistor and inductor RL circuit consists of a resistor element and an inductor element, which is used to limit the rate of change of current and prevent sudden current changes from impacting the circuit. Its two sides are respectively connected to the anode and cathode of the second diode to form a current path.

[0123] The second transistor serves as a switching element, with its collector connected to the anode of the second diode, its emitter grounded, and its base receiving the second heater operating signal. The switching state of the second transistor is controlled by the signal received at the base.

[0124] It should be noted that if the base of the second transistor receives the second heater heating signal, the second heater operating signal passes through the base, turning on the second transistor. At this point, a low-resistance path is formed between the collector and emitter of the second transistor. Since the second transistor is turned on, current in the second resistor-inductor RL circuit can flow through the collector of the second transistor to the emitter (i.e., ground). However, due to the presence of the second resistor-inductor RL circuit, the rate of change of the current is limited, avoiding sudden changes. During this process, due to the on-state of the second transistor, the first common terminal contacts the third contact, allowing current to flow through the third contact to the second heater, causing the second heater to begin operating.

[0125] It should be noted that Figure 5The circuit design shown here prevents the two heaters from activating accidentally or incorrectly, potentially causing overpower burnout. The second switch control circuit and the second heater operating signal precisely regulate the second heater's operating state. When the moving contact contacts the second contact, the second heater activates if the first common terminal and the third contact also touch. If the first common terminal and the third contact do not touch, the second heater deactivates, improving the flexibility and efficiency of the heating system.

[0126] Figure 6 This is a structural schematic diagram of the sixth heating device provided in an embodiment of the present utility model.

[0127] like Figure 6 As shown, the heating device comprises:

[0128] A first heater, a second heater, a first switch, a second switch, a first switch control circuit, a second switch control circuit, the second switch control circuit includes a second diode, a second resistor and inductor RL circuit, and a second transistor, and the first switch control circuit includes a first diode, a first resistor and inductor RL circuit, and a first transistor.

[0129] It should be noted that Figure 6 The working mode of the circuit shown can refer to the above embodiments and will not be described in detail here. Figure 6 The circuit design shown here prevents the two heaters from activating inadvertently or incorrectly, potentially causing overpower burnout. The first switch control circuit and the first heater operating signal precisely regulate the first heater's operating state. The second switch control circuit and the second heater operating signal precisely regulate the second heater's operating state.

[0130] Figure 7 This is a structural schematic diagram of the seventh heating device provided in an embodiment of the present utility model.

[0131] like Figure 7 As shown, the heating device comprises:

[0132] A first heater, a second heater, a first switch, a second switch, a third switch, and a fan, wherein the first switch includes a first contact, a second contact, and a movable contact, the first contact being connected to the first heater, the second contact being connected to the second heater, and the movable contact being connected to a power source; the movable contact being capable of selectively contacting either the first contact or the second contact; the second switch including a first common terminal and a third contact; and the third switch including a second common terminal and a fourth contact;

[0133] The second contact is connected to the second heater, including: the second contact is connected to the second common terminal; the fourth contact is connected to a parallel circuit including a first branch and a second branch; the first branch includes a fan, and the second branch includes a second switch and a second heater connected in sequence; wherein the fourth contact is connected to the first common terminal, and the third contact is connected to the second heater;

[0134] When the movable contact and the second contact are in contact, the first heater is in a non-operating state, and the second heater is in a non-operating state or an operating state, including:

[0135] When the movable contact contacts the second contact, the first common terminal contacts the third contact, and the second common terminal contacts the fourth contact, the first heater is in an off-state, and the second heater and the fan are in an on-state;

[0136] The first heater is used to heat water, the second heater is used to heat air, and the fan is used to promote the flow of the air heated by the second heater.

[0137] The fan may be a drying fan, the first heater may be a washing heater, and the second heater may be a drying heater.

[0138] The fourth contact is a fixed contact in the third switch.

[0139] The second common terminal acts as a bridge in the third switch and can be in contact with or not in contact with the fourth contact.

[0140] like Figure 7 As shown, W1 is the second common terminal of the third switch, and W2 is the fourth contact of the third switch. The second contact is connected to the second heater, including: the second contact B is connected to the second common terminal W1; the fourth contact W2 is connected to the parallel circuit including the first branch and the second branch; the first branch includes the fan, and the second branch includes the second switch and the second heater connected in sequence; wherein, the fourth contact W2 is connected to the first common terminal J, and the third contact K is connected to the second heater;

[0141] It should be noted that when the movable contact and the second contact are in contact, the first heater is in a non-operating state, and the second heater is in a non-operating state or an operating state, including:

[0142] When the movable contact contacts the second contact, the first common terminal contacts the third contact, and the second common terminal contacts the fourth contact, the first heater is in an off-state, and the second heater and the fan are in an on-state;

[0143] It can be understood that if the movable contact contacts the second contact, the first common end contacts the third contact and the second common end contacts the fourth contact, the current can pass through the conductive third switch to supply power to the first branch and the second branch respectively, so that the fan and the second heater are both in working state.

[0144] Since the current reaches the first branch after passing through the third switch, this means that when the second heater is operating, the fan is also operating. When the fan is on, the second heater can be powered on. If the fan is not on, the drying heater cannot be powered on, thus avoiding the risk of dry burning of the second heater from a hardware perspective.

[0145] When the first heater is turned on, the heating device will cut off the power supply of the second heater control circuit, causing the second heater to be unable to turn on. When the first heater is turned off, the heating device will provide power to the second heater control circuit.

[0146] It should be noted that for a washing and drying integrated clothing processing device or dryer that uses a drying heater to achieve a drying effect, when the drying heater is turned on, the drying fan is usually turned on simultaneously for heat exchange. At this time, if the control board fails or is interfered with and the drying fan is not turned on, the drying heater will be caused to dry burn. When the drying heater is dry-burned, the heat cannot be transferred quickly, which will bring a very large safety hazard. At the very least, the drying heater will be damaged, and at worst, the entire machine will be burned.

[0147] pass Figure 7 The circuit design shown here prevents the two heaters from activating inadvertently or incorrectly, potentially causing overpower burnout. Since the drying heater (second heater) also runs when the fan is activated, this prevents dry heating of the drying heater and improves the safety of the laundry processing device. The fan also activates simultaneously with the second heater to dissipate heat, preventing the risk of burns caused by dry heating of the drying heater.

[0148] Figure 8 This is a structural schematic diagram of an eighth heating device provided in an embodiment of the present utility model.

[0149] like Figure 8 As shown, the heating device comprises:

[0150] A first heater, a second heater, a first switch, a second switch, a first switch control circuit, a third switch and a fan, the first switch includes a first contact, a second contact and a moving contact, the first contact is connected to the first heater, the second contact is connected to the second heater, and the moving contact is connected to the power supply; the moving contact can selectively contact with the first contact or the second contact, the second switch includes a first common terminal and a third contact; the third switch includes a second common terminal and a fourth contact, the first switch control circuit includes a first diode, a first resistor and inductor RL circuit, and a first transistor,

[0151] The second contact is connected to the second heater, including: the second contact is connected to the second common end; the fourth contact is connected to the parallel circuit including the first branch and the second branch; the first branch includes the fan, and the second branch includes the second switch and the second heater connected in sequence; wherein, the fourth contact is connected to the first common end, and the third contact is connected to the second heater.

[0152] It should be noted that Figure 8 The working mode of the circuit shown can refer to the above embodiments and will not be described in detail here. Figure 8 The circuit design shown here prevents the two heaters from activating inadvertently or incorrectly, leading to overpower and circuit burnout. The first switch control circuit and the first heater's operating signal precisely adjust the first heater's operating state. Since the drying heater (second heater) starts simultaneously with the fan, dry-burning of the drying heater is prevented, improving the safety of the clothing processing device. The fan can also be activated simultaneously with the second heater to dissipate heat, preventing the risk of burns caused by dry-burning of the drying heater.

[0153] Figure 9 This is a schematic structural diagram of a ninth heating device provided in an embodiment of the present utility model.

[0154] like Figure 9 As shown, the heating device comprises:

[0155] a first heater, a second heater, a first switch, a second switch, a third switch, a fan, a second switch control circuit, and a third switch control circuit; the second switch control circuit includes a second diode, a second resistor and inductor RL circuit, and a second transistor; the third switch control circuit includes a third diode, a third resistor and inductor RL circuit, and a third transistor;

[0156] One side of the second resistor-inductor RL circuit is connected to the anode of the second diode, the other side of the second resistor-inductor RL circuit is connected to the cathode of the second diode, and the cathode of the second diode is connected to the second voltage source;

[0157] The anode of the second diode is connected to the collector of the second transistor, the emitter of the second transistor is grounded, and the base of the second transistor is connected to the second heater working signal;

[0158] The second switch control circuit is used to:

[0159] The base of the second transistor receives the second heater operating signal to control the first common terminal to contact the third contact point;

[0160] One side of the third resistor and inductor RL circuit is connected to the anode of the third diode, the other side of the third resistor and inductor RL circuit is connected to the cathode of the third diode, and the cathode of the third diode is connected to the third voltage source;

[0161] The anode of the third diode is connected to the collector of the third transistor, the emitter of the third transistor is grounded, and the base of the third transistor is connected to the fan working signal.

[0162] The third switch control circuit is used to:

[0163] The base of the third transistor receives the fan operation signal to control the contact between the second common terminal and the fourth contact point.

[0164] Among them, M5 represents the anode of the third diode, M1 represents the cathode of the third diode, M3 represents the emitter of the third transistor, M4 represents the collector of the third transistor, M2 represents the base of the third transistor, which can receive the fan working signal, and VCC3 represents the third voltage source.

[0165] Optionally, the first switch is a single-pole double-throw switch, the second switch is a relay, and the third switch is a relay.

[0166] Optionally, the third switch control circuit is configured to:

[0167] The base of the third transistor receives the fan operation signal to control the contact between the second common terminal and the fourth contact point.

[0168] It should be noted that the operation of the third switch control circuit mainly depends on the interaction of the third diode, the third resistor-inductor (RL) circuit, and the third transistor, combined with the external fan working signal and the third voltage source to achieve control of the fan working state.

[0169] The fan operation signal can control the fan to operate, which is not limited here.

[0170] Among them, the third diode serves as a unidirectional conductive element, with its anode connected to one side of the third resistor and inductor RL circuit and its cathode connected to the third voltage source. This ensures that current can only flow from the third voltage source to the third resistor and inductor RL circuit, preventing reverse current from damaging the circuit.

[0171] Among them, the third resistor and inductor RL circuit is composed of a resistor element and an inductor element, which is used to limit the rate of change of current and prevent sudden current changes from causing impact on the circuit. Its two sides are respectively connected to the anode and cathode of the third diode to form a current path.

[0172] The third transistor serves as a switching element, with its collector connected to the anode of the third diode, its emitter grounded, and its base receiving a wind turbine operating signal. The switching state of the third transistor is controlled by the signal received at the base.

[0173] It should be noted that if the base of the third transistor receives a fan heating signal, the fan operating signal passes through the base, turning the third transistor on. At this point, a low-resistance path is formed between the collector and emitter of the third transistor. Since the third transistor is on, current in the third resistor-inductor RL circuit can flow through the collector of the third transistor to the emitter (i.e., ground). However, due to the presence of the third resistor-inductor RL circuit, the rate of change of current is limited, avoiding sudden changes. During this process, due to the on-state of the third transistor, the second common terminal contacts the fourth contact, allowing current to flow through the fourth contact to the fan, causing the fan to start operating.

[0174] pass Figure 9 The circuit design shown can prevent the two heaters from being mistakenly turned on or wrongly turned on, resulting in overpower and burning of the circuit. The working state of the fan can be accurately adjusted by the third switch control circuit and the fan working signal. The working state of the second heater can be accurately adjusted by the second switch control circuit and the second heater working signal. The working state of the first heater can be accurately adjusted by the first switch control circuit and the first heater working signal. Since the fan will also run when the drying heater (second heater) is started, it can avoid dry burning of the drying heater and improve the safety of the clothing processing device. When the second heater is turned on, the fan can be turned on at the same time to dissipate heat, preventing the risk of burning caused by dry burning of the drying heater.

[0175] Figure 10 This is a schematic structural diagram of the tenth heating device provided in an embodiment of the present utility model.

[0176] like Figure 10 As shown, the heating device comprises:

[0177] A first heater, a second heater, a first switch, a second switch, a third switch, a fan, a first switch control circuit, a second switch control circuit and a third switch control circuit.

[0178] It should be noted that Figure 10 The working mode of the circuit shown can refer to the above embodiments and will not be described in detail here. Figure 10The circuit design shown can prevent the two heaters from being mistakenly turned on or wrongly turned on, resulting in overpower and burning of the circuit. The working state of the fan can be accurately adjusted by the third switch control circuit and the fan working signal. The working state of the first heater can be accurately adjusted by the first switch control circuit and the first heater working signal. The working state of the second heater can be accurately adjusted by the second switch control circuit and the second heater working signal. Since the fan will also run when the drying heater (second heater) is started, it can avoid dry burning of the drying heater, thereby improving the safety of the clothing processing device. When the second heater is turned on, the fan can be turned on at the same time to dissipate heat, preventing the risk of burning caused by dry burning of the drying heater.

[0179] An embodiment of the present application also provides a clothing processing device, comprising: a heating device as described in any one of the first aspects above, wherein the first heater contacts the water in the washing tub in the clothing processing device and is used to heat the water in the washing tub; and the second heater is used to heat the air.

[0180] For example, during the washing process, when using functions such as sterilization washing, the washing water needs to be heated; during the drying process, some drying methods require heating the air to form hot air, which converts moisture in the clothes into moisture and exhausts it out of the machine; in other drying methods, moisture-absorbing materials are used to absorb moisture from the clothes, and then the heated air is used to activate the moisture-absorbed materials (i.e., dehydrate them). For example, the first heater is used during the washing process, and the second heater is used during the drying process.

[0181] like Figure 11 and Figure 12 As shown, an embodiment of the present application proposes a clothing processing device 300, including: a second heater 100 as in any of the above technical solutions, a washing drum 310, the second heater 100 is used to provide heat energy to the washing drum 310, and a first heater 320, the first heater is in contact with the water in the washing drum in the clothing processing device, and is used to heat the water in the washing drum.

[0182] The clothes treating device 300 provided in the embodiment of the present application includes the second heater 100 or the drying module 200 as in any of the above technical solutions, so the clothes treating device 300 has all the beneficial effects of the second heater 100 or the drying module 200 in the above technical solutions.

[0183] The laundry processing device 300 provided in the embodiment of the present application can be used to dry the items to be processed in the washing drum 310 through the arrangement of the second heater 100. The second heater 100 includes a first shell 110, a heating element 120 and a heat insulating element 130. During use, the heating element 120 can provide heat energy. The heating element 120 is connected to the first shell 110. The first shell 110 can cover a part of the heating element 120 to facilitate the output of heat energy to the target area; the heat insulating element 130 is arranged on the first shell 110. The heat insulating element 130 can be arranged on the peripheral side of the heating element 120. Based on this, when the second heater 100 is assembled to the electric When the heat insulating member 130 is mounted on the washing drum 310, the heat insulating member 130 can block the transfer of heat energy, thereby preventing excessive heat energy from being transferred to other components of the clothing processing device 300 and increasing the service life of the washing drum 310; a mounting portion 140 is formed on the first shell 110, and during the assembly process of the heat insulating member 130, the heat insulating member 130 can be directly assembled onto the mounting portion 140. On the one hand, the assembly efficiency of the heat insulating member 130 can be improved; on the other hand, for the production and processing of the heat insulating member 130, no other assembly components may be provided on the heat insulating member 130, which can simplify the structure of the heat insulating member 130, facilitate the production and processing of the heat insulating member 130, and reduce the production cost of the second heater 100.

[0184] like Figure 11 and Figure 12 As shown, the air inlet end of the first air supply member 230 is connected to the washing drum 310, and the output end is connected to the moisture absorption and dehumidification component 210, and the output end of the moisture absorption and dehumidification component 210 is connected to the washing drum 310 to form a moisture absorption and dehumidification circulation pipeline; the fan 240 and the heat exchanger 250, the second heater 100 is used to provide heat energy for the moisture absorption and dehumidification component 210 to make the moisture absorption and dehumidification component 210 release water vapor, the output end of the fan 240 faces the second heater 100, the input end of the fan 240 is connected to the heat exchanger 250, and the heat exchanger 250 is connected to the moisture absorption and dehumidification component 210 to form a liquid collection circulation channel; wherein, the extension direction of the first abutment portion 2111 is the same as the air supply direction of the fan 240.

[0185] In this technical solution, the washing drum 310 is used to store clothes. During the washing process, the first heater heats the washing water, thereby washing the clothes with hot water. After the clothes are washed, the second heater 120 can provide heat energy to the washing drum 310, and the heat energy can dry the clothes.

[0186] In a feasible embodiment, the air inlet end of the first air supply member 230 of the drying module 200 is connected to the washing drum 310, and the output end of the moisture absorption and dehumidification component 210 of the drying module 200 is connected to the washing drum 310 to form a moisture absorption and dehumidification circulation pipeline.

[0187] In this technical solution, the structural composition of the clothing processing device is further provided. The clothing processing device may include a first air supply member 230, a fan 240 and a heat exchanger 250. During use, the first air supply member 230 extracts air with higher humidity through the washing drum 310, and the air with higher humidity is supplied to the moisture absorption and dehumidification component 210. The moisture absorption and dehumidification component 210 captures water vapor in the air flow. The heating member 120 works, and the fan 240 generates an air flow to supply the heated air to the moisture absorption and dehumidification component 210, which heats the moisture absorption and dehumidification component to separate the water vapor from the moisture absorption and dehumidification component 210. The separated water vapor will be supplied to the heat exchanger 250 for condensation and enrichment, and the air flow generated by the first air supply member 230 will carry the residual heat on the moisture absorption and dehumidification component 210 into the washing drum 310 to heat the clothes and improve the drying efficiency. Based on this, an air supply cycle can be formed between the first air supply member 230, the moisture absorption and dehumidification component 210 and the washing drum 310. This cycle can capture the moisture of the clothes and use the moisture absorption and dehumidification component 210 to enrich the moisture. Through the circulation between the fan 240, the heat exchanger 250 and the moisture absorption and dehumidification component 210, the moisture can be desorbed through the moisture absorption and dehumidification component 210, and then condensed through the heat exchanger 250. After the condensation of the water vapor, liquid water can be formed, completing the enrichment of the water vapor.

[0188] The clothing processing device 300 provided in the embodiment of the present application is equipped with a heat insulating member 130 on the surrounding side of the heating member 120, which can prevent the heat energy of the heating member 120 from being transferred to the moisture absorption and dehumidification group assembly, the first air supply member 230, the fan 240 and the heat exchanger 250, and can increase the service life of the clothing processing device 300.

[0189] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms may be directed to different embodiments or examples. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are mutually inconsistent.

[0190] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0191] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and purpose of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A heating device, characterized in that: include: A first heater, a second heater, and a first switch, wherein the first switch includes a first contact, a second contact, and a moving contact, the first contact being connected to the first heater, the second contact being connected to the second heater, and the moving contact being connected to a power source; the moving contact being capable of selectively contacting either the first contact or the second contact; When the movable contact contacts the first contact, the first heater is in an operating state; and the second heater is in an inoperative state; When the moving contact point contacts the second contact point, the first heater is in a non-operating state, and the second heater is in a non-operating state or an operating state.

2. The heating device according to claim 1, characterized in that The first switch control circuit includes a first diode, a first resistor and inductor RL circuit, and a first transistor. One side of the first resistor-inductor RL circuit is connected to the anode of the first diode, the other side of the first resistor-inductor RL circuit is connected to the cathode of the first diode, and the cathode of the first diode is connected to a first voltage source; The anode of the first diode is connected to the collector of the first transistor, the emitter of the first transistor is grounded, and the base of the first transistor is connected to the first heater working signal; The first switch control circuit is used for: The base of the first transistor receives the first heater operating signal to control the moving contact to contact the first contact or the second contact.

3. The heating device according to claim 1 or 2, characterized in that Also included is a second switch, the second switch including a first common terminal and a third contact; The second contact is connected to the second heater, comprising: the second contact is connected to the first common end; the third contact is connected to the second heater; When the movable contact contacts the second contact, the first heater is in a non-operating state, and the second heater is in a non-operating state or an operating state, including: When the movable contact contacts the second contact, and the first common terminal contacts the third contact, the first heater is in an off-state and the second heater is in an on-state; When the moving contact is in contact with the second contact, and the first common terminal is not in contact with the third contact, the first heater is in a non-operating state, and the second heater is in a non-operating state.

4. The heating device according to claim 3, characterized in that It also includes a second switch control circuit, which includes a second diode, a second resistor and inductor RL circuit, and a second transistor. One side of the second resistor-inductor RL circuit is connected to the anode of the second diode, the other side of the second resistor-inductor RL circuit is connected to the cathode of the second diode, and the cathode of the second diode is connected to a second voltage source; The anode of the second diode is connected to the collector of the second transistor, the emitter of the second transistor is grounded, and the base of the second transistor is connected to the second heater working signal; The second switch control circuit is used for: The base of the second transistor receives the second heater operating signal to control the contact between the first common terminal and the third contact point.

5. The heating device according to claim 1 or 2, characterized in that: It also includes a second switch, a third switch and a fan, wherein the second switch includes a first common terminal and a third contact; the third switch includes a second common terminal and a fourth contact; The second contact is connected to the second heater, including: the second contact is connected to the second common terminal; the fourth contact is connected to a parallel circuit including a first branch and a second branch; the first branch includes the fan, and the second branch includes the second switch and the second heater connected in sequence; wherein the fourth contact is connected to the first common terminal, and the third contact is connected to the second heater; When the movable contact contacts the second contact, the first heater is in a non-operating state, and the second heater is in a non-operating state or an operating state, including: When the movable contact contacts the second contact, the first common terminal contacts the third contact, and the second common terminal contacts the fourth contact, the first heater is in an off-state, and the second heater and the fan are in an on-state; The first heater is used to heat water, the second heater is used to heat air, and the fan is used to promote the flow of the air heated by the second heater.

6. The heating device according to claim 5, characterized in that The device further includes a second switch control circuit and a third switch control circuit, wherein the second switch control circuit includes a second diode, a second resistor and inductor RL circuit, and a second transistor; and the third switch control circuit includes a third diode, a third resistor and inductor RL circuit, and a third transistor. One side of the second resistor-inductor RL circuit is connected to the anode of the second diode, the other side of the second resistor-inductor RL circuit is connected to the cathode of the second diode, and the cathode of the second diode is connected to a second voltage source; The anode of the second diode is connected to the collector of the second transistor, the emitter of the second transistor is grounded, and the base of the second transistor is connected to the second heater working signal; The second switch control circuit is used for: Based on the base of the second transistor receiving the second heater working signal, the first common terminal is controlled to contact the third contact point; One side of the third resistor-inductor RL circuit is connected to the anode of the third diode, the other side of the third resistor-inductor RL circuit is connected to the cathode of the third diode, and the cathode of the third diode is connected to a third voltage source; The anode of the third diode is connected to the collector of the third transistor, the emitter of the third transistor is grounded, and the base of the third transistor is connected to the fan working signal; The third switch control circuit is used for: The base of the third transistor receives the fan operation signal to control the contact between the second common terminal and the fourth contact point.

7. The heating device according to claim 1, characterized in that The first switch is a single-pole double-throw switch.

8. The heating device according to claim 3, characterized in that The first switch is a single-pole double-throw switch, and the second switch is a relay.

9. The heating device according to claim 5, characterized in that The first switch is a single-pole double-throw switch, the second switch is a relay, and the third switch is a relay.

10. The heating device according to claim 1, characterized in that in, The first contact is a normally open contact, and the second contact is a normally closed contact.

11. A clothes processing device, comprising the heating device according to any one of claims 1 to 10, characterized in that: The first heater contacts the water in the washing tub of the laundry processing device and is used to heat the water in the washing tub; the second heater is used to heat the air.

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