Working mode change-over switch of bath heater

Abstract

The utility model discloses a bath heater working mode change-over switch, which comprises a blowing switch button, a ventilation switch button, a conductive piece, a first contact assembly, a second contact assembly and a third wire holder, and the blowing switch button and the ventilation switch button are in linkage fit. The utility model further discloses a bath heater working mode switching circuit which comprises a first motor, a second motor and a change-over switch, the first motor is a single-phase asynchronous motor, the change-over switch comprises a first switch, a second switch and a third switch, and the first switch and the second switch are connected with a main winding terminal and an auxiliary winding terminal of the first motor respectively. The third switch is connected with the second motor, and the second switch and the third switch form linkage matching capable of being connected or disconnected at the same time. The bath heater air blowing and air exchanging working mode switching switch and circuit are simple in structure and high in reliability, and the production cost of a bath heater can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of switches, and in particular to a bathroom heater switch and a circuit. Background Art

[0002] Currently, the dual-core bathroom heaters on the market usually include two sets of impellers and motors. When the bathroom heater is in the blowing working mode, the two sets of impellers and motors rotate forward at the same time, working together to produce the blowing effect; when the bathroom heater is in the ventilation working mode, one set of impellers and motors stop rotating, and the other set of impellers and motors reverse, which can suck the indoor mist out.

[0003] The realization of the above functions needs to rely on the control of the bathroom heater switch. The currently existing bathroom heater switches include a blowing switch button corresponding to the opening and closing of the blowing working mode, and a ventilation switch button corresponding to the opening and closing of the ventilation working mode. The two switch buttons are mechanically linked. When one of the switch buttons is turned on, the other switch button will be closed accordingly.

[0004] In order to control the forward rotation of the two motors when the blower switch button is pressed and turned on, and to reverse one of the motors and disconnect the other motor when the ventilation switch button is pressed and turned on, the existing bathroom heater needs to be matched with a controller. Specifically, the controller is connected between the bathroom heater switch and the two motors, and the controller receives the current signals of the blower switch button and the ventilation switch button to achieve corresponding control. However, this existing solution makes the product have a high production cost. Summary of the invention

[0005] The utility model provides a bathroom heater working mode switching switch, which has a simple structure and high reliability and can reduce the production cost of the bathroom heater.

[0006] The utility model bathroom heater working mode switching switch includes a blowing switch button corresponding to the opening and closing of the blowing working mode, and a ventilation switch button corresponding to the opening and closing of the ventilation working mode. The blowing switch button and the ventilation switch button form a linkage, so that when one of the switch buttons is turned on, the other switch button can be linked to be closed. In addition, it also includes a conductive part, a first contact assembly, and a second contact assembly, wherein the first contact assembly includes two first moving contacts, two first static contacts, and two first terminal blocks, the two first moving contacts are transmission-coordinated with the blowing switch button, the two first moving contacts are conductively connected to the conductive part, and the two first moving contacts are respectively coordinated with the two first static contacts for switching. When the blower switch button is pressed, the two first moving contacts and the two first static contacts can be driven to be in contact or disconnected at the same time. The two first terminal blocks are respectively conductively connected to the two first static contacts. The second contact assembly includes a second moving contact, a second static contact, and a second terminal block. The second moving contact is matched with the ventilation switch button for transmission. The second moving contact is conductively connected to the conductive member. The second moving contact and the second static contact cooperate to be turned on and off. When the ventilation switch button is pressed, the second moving contact and the second static contact can be driven to be in contact or disconnected. The second terminal block and the second static contact are conductively connected. The switching switch also includes a third terminal block conductively connected to the conductive member.

[0007] In addition, the utility model also provides a bathroom heater working mode switching circuit, which has a simple structure and high reliability and can reduce the production cost of the bathroom heater.

[0008] The utility model bathroom heater working mode switching circuit includes a first motor and a second motor connected in parallel and also includes a switching switch. The first motor adopts a single-phase asynchronous motor. The switching switch includes a first switch, a second switch, and a third switch. The first switch and the second switch are respectively connected to the main and auxiliary winding terminals of the first motor and are used to realize the forward and reverse control of the first motor. The third switch is connected to the second motor and is used for the start and close control of the second motor. The second switch and the third switch constitute a linkage coordination that can be connected or disconnected at the same time.

[0009] Furthermore, the first switch and the second switch or the first switch and the third switch form a linkage coordination, so that when the second switch and the third switch are turned on or off at the same time, the first switch can be simultaneously turned off or on in linkage.

[0010] The beneficial effects of the utility model are: compared with the solution of using a controller in the prior art to switch the blowing and ventilation working modes of the bathroom heater switch, the utility model has a simple structure, high reliability, and can reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a front view of an embodiment of a bathroom heater working mode switching switch of the utility model;

[0012] Figure 2 This is a structural exploded view of an embodiment of a bathroom heater working mode switching switch of the utility model;

[0013] Figure 3 This is a schematic diagram of the rear structure of an embodiment of the bathroom heater working mode switching switch of the utility model;

[0014] Figure 4 The internal structure of the working mode switching switch of the utility model is shown in FIG. Figure 1 ;

[0015] Figure 5 The internal structure of the working mode switching switch of the utility model is shown in FIG. Figure 2 ;

[0016] Figure 6 The internal structure of the working mode switching switch of the utility model is shown in FIG. Figure 3 ;

[0017] Figure 7 This is a circuit connection diagram of an embodiment of the bathroom heater working mode switching circuit of the present utility model. DETAILED DESCRIPTION

[0018] The implementation of the utility model of the bathroom heater working mode switching switch is as follows: Figure 1-6 As shown: it includes a panel 11, a mounting base 12 arranged on the rear side of the panel 11, and a back cover 13 arranged on the rear side of the mounting base 12. A groove 110 is arranged on the front side of the panel 11. A blowing switch button 21 corresponding to the opening and closing of the blowing working mode and a ventilation switch button 31 corresponding to the opening and closing of the ventilation working mode are embedded in the groove 110. The blowing switch button 21 and the ventilation switch button 31 are swingably connected to the panel 11. The blowing switch button 21 and the ventilation switch button 22 form a linkage cooperation by rotating a first connecting rod 41 arranged in the groove 110. When one end of one of the switch buttons is swung down and pressed, it can push one end of the first connecting rod 41 to swing downward. When the other end of the first connecting rod 41 swings upward, it drives one end of the other switch button to swing upward, so that when one of the switch buttons is turned on, the other switch button can be linked to be closed.

[0019] like Figures 3 to 6 As shown, the switch further includes a conductive member 5, a first contact assembly, and a second contact assembly.

[0020] Among them, the first contact assembly includes two first moving contacts 61, two first static contacts 62, and two first terminal blocks 63. The two first moving contacts 61 are transmission-coordinated with the hair dryer switch button 21, and the two first moving contacts 61 are conductively connected to the conductive member 5. The two first moving contacts 61 are respectively coordinated with the two first static contacts 62 for switching on and off. When the hair dryer switch button 21 is pressed, the two first moving contacts 61 and the two first static contacts 62 can be simultaneously driven to contact, connect, or separate and disconnect. The two first terminal blocks 63 are respectively conductively connected to the two first static contacts 62.

[0021] Specifically, a first drive rod 91 is swingably connected to the mounting base 12 and is disposed at the rear of the panel 11. The front side of the first drive rod 91 is in abutment with the blowing switch button 21. The rear side of the first drive rod 91 has two abutment transmission parts respectively cooperating with the two first moving contacts 61. The blowing switch button 21 can drive the first drive rod 91 to swing while being pressed and swung. The first drive rod 91 drives the two first moving contacts 61 to swing through its abutment transmission part, thereby achieving contact connection or separation and disconnection with the two first static contacts 62.

[0022] The second contact assembly includes a second moving contact 71, a second static contact 72, and a second terminal holder 73. The second moving contact 72 is in transmission cooperation with the ventilation switch button 22. The second moving contact 71 is conductively connected to the conductive member 5. The second moving contact 71 and the second static contact 72 cooperate to be turned on and off. When the ventilation switch button 22 is pressed, the second moving contact 71 and the second static contact 72 can be driven to be in contact or disconnected. The second terminal holder 73 and the second static contact 72 are conductively connected. The switching switch also includes a third terminal holder 8 conductively connected to the conductive member 5.

[0023] Specifically, a second drive rod 92 is swingably connected to the mounting base 12, and the second drive rod 92 is arranged at the rear of the panel 11. The front side of the second drive rod 92 is in abutment with the ventilation switch button 22, and the rear side of the second drive rod 92 has an abutment transmission part that cooperates with the second moving contact 71. The ventilation switch button 22 can drive the second drive rod 92 to swing while being pressed and swung. The second drive rod 92 drives the second moving contact 71 to swing through its abutment transmission part, thereby realizing contact connection or separation disconnection with the second static contact 72.

[0024] The first driving rod 91 and the second driving rod 92 are linked together by rotating the second connecting rod 42 disposed on the mounting seat 12, thereby improving the linkage effect between the two sets of driving rods and the switch button.

[0025] When using, refer to Figure 7, connect one of the first terminal blocks 63 and the second terminal block 73 of the switching switch S to the main and auxiliary winding terminals of one of the motors (single-phase asynchronous motor) with forward and reverse functions of the bathroom heater respectively, connect the other first terminal block 63 of the switching switch to another motor of the bathroom heater that only needs to rotate forward, connect the third terminal block 8 to the power supply, and switch the working mode of the bathroom heater by pressing the blowing switch button 21 or the ventilation switch button 22. When the bathroom heater is in the blowing working mode, the two motors of the bathroom heater are powered on and rotate forward, and the impellers connected to the two motors rotate to discharge air; when the bathroom heater is in the ventilation working mode, the motor with forward and reverse functions and the impeller are switched to reverse, producing a suction effect, the other motor is disconnected, and the impeller stops rotating.

[0026] The implementation of the utility model of the bathroom heater working mode switching circuit is as follows: Figure 7 As shown: it includes a first motor M1 and a second motor M2 connected in parallel and also includes a switching switch S. The first motor M1 and the second motor M2 are both connected to impellers for cooperating to realize the blowing and ventilation functions of the bathroom heater. The first motor M1 adopts a single-phase asynchronous motor. The switching switch S includes a first switch S1, a second switch S2, and a third switch S3 connected to the power supply. The first switch S1 and the second switch S2 are respectively connected to the main and auxiliary winding terminals of the first motor M1 and are used to realize the forward and reverse control of the first motor M1. For example, when only the second switch S2 is turned on, the main winding of the first motor M1 is energized to generate forward rotation, and cooperate with the impeller to realize the blowing function. For example, when only the first switch S1 is turned on, the first motor M1 The secondary winding is energized to produce reverse rotation, and cooperates with the impeller to realize the ventilation function. The third switch S3 is connected to the second motor S2 and is used to control the start and close of the second motor M2. When the third switch S3 is turned on, the second motor M2 can be energized to rotate forward, and cooperate with the impeller to realize the blowing function. When the third switch S3 is disconnected, the second motor M2 and the impeller stop rotating. The second switch S2 and the third switch S3 form a linkage that can be connected or disconnected at the same time. This makes it possible for the first motor M1 and the second motor M2 to rotate forward at the same time when the bathroom heater is in the blowing working mode, thereby increasing the blowing effect; when the bathroom heater is in the ventilation working mode, the second motor M2 stops working, and only the first motor M1 works in reverse, so as to suck the indoor mist out.

[0027] The first switch S1 and the second switch S2 or the first switch S1 and the third switch S3 form a linkage, so that when the second switch S2 and the third switch S3 are turned on or off at the same time, the first switch S1 can be turned off or on simultaneously, which can simplify the operation process of switching the switch and improve the safety and reliability of the product when in use.

[0028] The above embodiment is only one of the preferred specific embodiments of the present invention. Common changes and substitutions made by those skilled in the art within the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A switch for switching the working modes of a bathroom heater, comprising a blower switch button for opening and closing the blower working mode and a ventilation switch button for opening and closing the ventilation working mode, the blower switch button and the ventilation switch button form a linkage, so that when one of the switch buttons is turned on, the other switch button can be turned off at the same time, characterized in that: It also includes a conductive part, a first contact assembly, and a second contact assembly, wherein the first contact assembly includes two first moving contacts, two first static contacts, and two first terminal blocks, the two first moving contacts are transmission-coordinated with the blower switch button, the two first moving contacts are conductively connected to the conductive part, the two first moving contacts are respectively coordinated with the two first static contacts for switching, and the two first terminal blocks are respectively conductively connected with the two first static contacts, the second contact assembly includes a second moving contact, a second static contact, and a second terminal block, the second moving contact is transmission-coordinated with the ventilation switch button, the second moving contact is conductively connected to the conductive part, the second moving contact and the second static contact are coordinated for switching, the second terminal block and the second static contact are conductively connected, and the switching switch also includes a third terminal block conductively connected to the conductive part.

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