Double-gear microswitch, host and food processor

Abstract

The utility model discloses a double-gear microswitch, a host and a food processor. The double-gear microswitch comprises a switch shell, two contact assemblies and a common contact piece. The common contact is assembled with the switch shell and comprises two static contacts. Each contact assembly comprises a connecting piece, a switch elastic piece, a movable contact piece and a gear piece; the connecting piece and the switch shell are assembled, one end of the switch elastic piece is connected with the connecting piece or the switch shell, and the other end of the switch elastic piece is connected with the movable contact piece; the movable contact piece comprises a movable contact point; the gear piece extends out of the switch shell. On the basis of the arrangement, one of the movable contacts of the movable contact pieces of the two contact assemblies is selected to be electrically connected with or separated from one corresponding static contact of the public contact piece, so that due to the fact that the public contact piece is shared and the matching relation is achieved, it is equivalent that two switches are integrated into one switch, wire connection and manual welding are reduced, reliability is high, and the size is small; two switches do not need to be purchased and assembled, so that the cost is reduced, and product assembly is facilitated.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of switches, in particular to a double-gear micro switch, a host and a food processor. BACKGROUND

[0002] The food processor comprises a host, a stirring assembly, a stirring bowl and a bowl cover. The bowl cover is combined with the stirring bowl, the stirring assembly is located in the stirring bowl, the host is connected with the stirring assembly through a through hole on the bowl cover, and the stirring assembly of the stirring assembly is driven to rotate in the stirring bowl.

[0003] The stirring assembly of the existing food processor usually rotates at one gear speed or two gear speeds, and the host comprises two switches, namely a one-gear switch and a two-gear switch. The two switches result in high cost and complex assembly of the food processor. CONTENT OF THE UTILITY MODEL

[0004] The application aims to disclose a double-gear micro switch, a host and a food processor. The double-gear micro switch is beneficial to reduce wire connection and manual welding, reduce cost and simplify assembly.

[0005] In a first aspect, the application discloses a double-gear micro switch. The double-gear micro switch comprises a switch shell, two contact assemblies and a common contact piece; the common contact piece is assembled with the switch shell and comprises two static contacts; each contact assembly comprises a connecting piece, a switch elastic piece, a moving contact piece and a gear piece; the connecting piece is assembled with the switch shell, one end of the switch elastic piece is connected with the connecting piece or the switch shell, and the other end of the switch elastic piece is connected with the moving contact piece; the moving contact piece comprises a moving contact point; the gear piece extends out of the switch shell; the gear pieces of the two contact assemblies are pressed alternatively, the pressed gear piece makes the switch elastic piece deform, the switch elastic piece drives the moving contact piece to move from an initial position until the moving contact point of the moving contact piece contacts a corresponding static contact point, so that the corresponding connecting piece is electrically connected with the common contact piece; under the condition that the gear piece no longer bears the pressing force, the switch elastic piece changes from the deformed state to the natural state and drives the gear piece to reset and drives the moving contact point of the moving contact piece to separate from the corresponding static contact point until the moving contact piece returns to the initial position.

[0006] As set forth above, since the double-grade micro switch comprises two contact assemblies and a common contact, and the movable contact of the movable contact assembly is selectively connected or disconnected with a corresponding stationary contact of the common contact (for example, the common contact is connected with a zero line, and the connecting piece of each contact assembly is connected with a live line), and because of the common use of the common contact and the above-mentioned matching relationship, it is equivalent to two switches integrated into one switch, which reduces the wire connection and manual welding, has high reliability, and small size; without purchasing and assembling two switches, the cost (including the purchase cost and the labor cost) is reduced; moreover, the connecting piece and the common contact are most needed to be assembled with the switch shell, one end of the switch elastic piece is connected with the connecting piece or the switch shell, and the other end is connected with the movable contact, so that the double-grade micro switch is simple to assemble.

[0007] In some embodiments, the switch elastic piece is in a straight line shape; the switch elastic piece is inclined upward relative to the horizontal plane by an angle b when in the natural state; the movable contact is rotationally connected with the connecting piece; the movable contact is inclined upward relative to the horizontal plane by an angle a in the initial position, and a > b.

[0008] As set forth above, because a > b, the movable contact has a larger stroke to make the movable contact point contact the stationary contact point of the common contact, and correspondingly, a larger stroke is also needed to remove the contact, and therefore, the contact reliability between the movable contact point and the stationary contact point can be improved.

[0009] In some embodiments, 20 degrees ≤ a ≤ 30 degrees, and / or, 5 degrees ≤ b ≤ 15 degrees.

[0010] As set forth above, a and b satisfy the above conditions, and a larger stroke is further needed to remove the contact, and therefore, the contact reliability between the movable contact point and the stationary contact point can be further improved.

[0011] In some embodiments, the movable contact comprises an assembly part and a contact part comprising the movable contact point, the assembly part and the contact part are both in a straight plate shape and form an obtuse angle; opposite sides of the assembly part are respectively provided with insertion arms, opposite sides of the connecting piece are respectively provided with insertion grooves, and the insertion arms are inserted into the corresponding insertion grooves to realize the rotational connection.

[0012] As set forth above, since the assembly part is in a straight plate shape and realizes the rotational connection through the insertion of the insertion grooves and the insertion arms, and the movable contact is inclined upward relative to the horizontal plane, when the switch elastic piece drives the movable contact to move, the straight and inclined movable contact abuts against the side wall of the insertion groove to move, the rotation of the movable contact is smoother, and the gear piece is more easily pressed.

[0013] In some embodiments, the switch housing comprises a first side cover and a second side cover, the first side cover and the second side cover are closed in a first direction to form a containing cavity containing the contact assembly and the common contact; the gear is extended from the containing cavity to the switch housing in a second direction, the second direction is perpendicular to the first direction; the connecting piece is extended from the containing cavity to the switch housing in a third direction, the third direction is opposite to the second direction.

[0014] As set forth above, since the first side cover and the second side cover are closed in the first direction, the gear is extended from the switch housing in the second direction, and the connecting piece is extended from the switch housing in the third direction opposite to the second direction, the second direction is perpendicular to the first direction, the contact assembly and the common contact can be assembled in the first side cover, and the first side cover and the second side cover are closed in the first direction, so that the double-gear micro switch is simple to assemble.

[0015] In the second aspect, the application discloses a host. The host comprises any one of the double-gear micro switches, two buttons, two button elastic pieces, and a motor; in the case that one of the buttons is pressed, a button elastic piece corresponding to the pressed button is deformed, and the corresponding gear is pressed to make the connecting piece corresponding to the pressed gear in communication with the motor.

[0016] As set forth above, the host has at least the beneficial effects brought by the double-gear micro switch, such as the smaller size of the double-gear micro switch, which makes the host smaller.

[0017] In some embodiments, the host comprises a host housing, the two buttons are integrated into a button plate; the button plate and the host housing form a seesaw, when one end of the button plate is pressed and the opposite end is raised, the gear corresponding to the pressed end is pressed.

[0018] As set forth above, since the two buttons are integrated into the button plate, the structure of the host is simple, the number of parts is small, and the host is simple to assemble.

[0019] In some embodiments, the host comprises a motor rack; the host housing comprises a main housing and a secondary housing; the secondary housing and the motor rack are assembled at the same end of the main housing, and the motor rack is at least partially located in the main housing. The double-gear micro switch is assembled in the motor rack and located in the secondary housing; the motor is hung on the motor rack and located in the main housing opposite to the double-gear micro switch; the button plate and the secondary housing form the seesaw, and the button plate also covers the two button elastic pieces and the double-gear micro switch.

[0020] As set forth above, by assembling the double-grade micro switch in the motor frame and in the sub-housing, the key plate and the main housing form the seesaw, and cover the double-grade micro switch and the key elastic element, so that the double-grade micro switch and the key elastic element do not occupy the lateral dimension of the main machine. Furthermore, the motor frame is at least partially in the main housing, and the motor is in the main housing, so that the axial dimension of the main machine along the motor shaft of the motor is small. Finally, the lateral and axial dimensions of the main machine are both small. Moreover, because of the shielding of the key plate, only the key plate and the main housing are visible, and the main machine is beautiful in appearance.

[0021] In some embodiments, the motor frame is provided with a switch fixing part, which forms a switch mounting space; and the double-grade micro switch is in the switch mounting space and clamped by the switch fixing part.

[0022] As set forth above, by clamping the double-grade micro switch in the switch mounting space by the switch fixing part, the assembly of the double-grade micro switch is simpler while ensuring that the main machine is small in size.

[0023] In some embodiments, the main machine comprises a safety switch and a safety link, the safety switch, the double-grade micro switch and the motor are connected in series; the safety link moves upward under force to close the safety switch; and the main housing is cylindrical, and the safety switch is assembled on the side of the motor frame and in the main housing.

[0024] As set forth above, because the main housing is cylindrical, and the safety switch is assembled on the side of the motor frame and in the main housing, the overall size of the safety switch and the motor frame is smaller than the diameter of the main housing, which is beneficial to the small size and beauty of the main machine.

[0025] In some embodiments, the main machine comprises a main housing, a motor frame, a top damping element and a bottom damping element, the motor frame is assembled in the main housing, and the motor is hung on the motor frame and in the main housing; the top damping element abuts against the top of the motor and the motor frame, and the bottom damping element abuts against the bottom of the motor and the bottom of the main housing.

[0026] As set forth above, because the top damping element abuts against the top of the motor and the motor frame, and the bottom damping element abuts against the bottom of the motor and the bottom of the main housing, the main machine is low in noise during operation by the damping effect of the top damping element and the bottom damping element.

[0027] In a third aspect, the application discloses a food processor. The food processor comprises any one of the foregoing main machine, a food container and a stirring assembly, wherein the motor of the main machine drives the stirring assembly to rotate in the food container when the motor is started.

[0028] As set forth above, the food processor has at least the beneficial effects of the main machine, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 is a perspective view of a double-position micro switch according to an embodiment of the application;

[0030] Figure 2 is an exploded view of the double-position micro switch shown in Figure 1

[0031] Figure 3 is a perspective view of the moving contact of the double-position micro switch shown in Figure 2

[0032] Figure 4 is a sectional view along the line A-A of Figure 1

[0033] Figure 5 is a schematic view in which the first position is pressed down in the state of Figure 4

[0034] Figure 6 is a schematic view in which the second position is pressed down in the state of Figure 4

[0035] Figure 7 is an exploded view of the main machine according to an embodiment of the application;

[0036] Figure 8 Figure 7 is a sectional view of the main machine in an assembled state shown in

[0037] Figure 9 is a schematic view of the positional relationship between the key plate and the gear piece in a standby or non-working state of the main machine;

[0038] Figure 10 is a schematic view of the positional relationship between the key plate, the gear piece and the corresponding components of the double-position micro switch according to an embodiment of the application when the first position is working;

[0039] Figure 11 is a schematic view of the positional relationship between the key plate, the gear piece and the corresponding components of the double-position micro switch according to an embodiment of the application when the second position is working;

[0040] Figure 12 is a connection diagram between the micro switch, the safety switch, the motor and the power cord;​​​​​​

[0041] Figure 13 is a perspective view of a motor bracket according to an embodiment of the present application;

[0042] Figure 14 is an exploded view of a food processor according to an embodiment of the present application. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments (or, the "embodiments") of the present application will be clearly and completely described herein with reference to the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated.

[0044] If the application embodiments involve directional indications or positional relationships (such as up, down, left, right, front, back, inner, outer, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are used only to explain the relative positional relationship, movement, etc. between the components in a certain posture (as shown in the drawings); if the specific posture changes, the directional indication or positional relationship also changes accordingly. In addition, the terms "first", "second", etc. in the embodiments of the present application are only used for convenience of description, and cannot be understood as indicating or implying relative importance.

[0045] In a first aspect, referring to Figure 1 , Figure 2 , Figures 4 to 6 The present application discloses a double-step micro switch 10. The double-step micro switch 10 comprises two contact assemblies 1, a common contact 2 and a switch housing 3. The common contact 2 is assembled with the switch housing 3, and the assembly method is not limited, such as clamping by a clamping groove, injection molding, etc. Each contact assembly 1 comprises a connecting piece 11, a switch elastic piece 12, a moving contact 13 and a step piece 14. In the embodiments of the present application, the connecting piece 11 is assembled with the switch housing 3, and more specifically, the connecting piece 11 is assembled with the first side cover 31 of the switch housing 3. One end of the switch elastic piece 12 is connected with the connecting piece 11, and in other embodiments, the other end of the switch elastic piece 12 can also be connected with the switch housing 3. The other end of the switch elastic piece 12 is connected with the moving contact 13. The moving contact 13 comprises a moving contact point 1321. The connection between the moving contact 13 and the switch elastic piece 12 is not limited, and the structure of the moving contact 13 is also not limited, as long as the switch elastic piece 12 can be deformed to drive the moving contact 13 to move, so that the moving contact point 1321 contacts the stationary contact point 21. Compared with the prior art, the double-step micro switch 10 has the advantages that the two contact assemblies 1 are connected with the switch housing 3 through the connecting piece 11, and the switch elastic piece 12 is connected with the moving contact 13, so that the moving contact 13 can be driven to move by the switch elastic piece 12, and the moving contact point 1321 can be brought into contact with the stationary contact point 21, thereby achieving the function of the double-step micro switch 10. Figures 4 to 6It can be seen that the gear 14 of the contact assembly 1 is pressed alternatively, and the pressed gear 14 makes the switch elastic member 12 deform, and the switch elastic member 12 drives the movable contact 13 to move from the initial position until the movable contact point 1321 of the movable contact 13 contacts a corresponding static contact point 21 to make the corresponding connecting member 11 electrically connected with the common contact 2. Figure 4 The state of the double-gear micro switch when no gear 14 is pressed is shown. Figure 5 And Figure 4 After the corresponding gear 14 of the first gear is pressed, the connecting member 11 of the first gear is electrically connected with the common contact 2 through the movable contact 13. Figure 6 And Figure 4 After the corresponding gear 14 of the second gear is pressed, the connecting member 11 of the second gear is electrically connected with the common contact 2 through the corresponding movable contact 13. Figure 4 It is shown that after the gear 14 is pressed, the corresponding movable contact 13 of the pressed gear 14 rotates in the direction of the arrow R, but the movement of the movable contact 13 under the drive of the switch elastic member 12 is not limited to the rotation.

[0046] When the gear 14 no longer bears the pressing force, the switch elastic member 12 changes from the deformed state to the natural state, drives the gear 14 to reset, and drives the movable contact point 1321 of the movable contact 13 to separate from the corresponding static contact point 21 until the movable contact 13 returns to the initial position. The gear 14 no longer bears the pressing force, for example, the pressing of the corresponding gear 14 of the first gear is released, and the switch elastic member 12 can apply elastic force to the gear 14 and the movable contact 13 to drive the gear 14 and the movable contact 13 to reset. It can also be that the switching from one gear (for example, the first gear) to another gear (for example, the second gear) makes the gear 14 of the contact assembly 1 of the first gear no longer bear the pressing force, so that the switch elastic member 12 returns to the natural state to make the gear 14 reset and the movable contact 13 reset (the movable contact point 1321 separates from the static contact point 21).

[0047] As described above, since the double-gear micro switch 10 includes two contact assemblies 1 and one common contact 2, and the movable contact point 1321 of the movable contact 13 of the two contact assemblies 1 is alternatively electrically connected with or separated from a corresponding static contact point 21 of the common contact 2 (for example, the common contact 2 is connected with the zero line, and the connecting member 11 of each contact assembly 1 is connected with the fire line), and because of the common use of the common contact 2 and the above-mentioned matching relationship, it is equivalent to two switches integrated into one switch, reduces the wire connection and manual welding, has high reliability, and has small size; without purchasing and assembling two switches, the cost (including the purchase cost and the labor cost) is reduced;

[0048] Furthermore, the connecting piece and the common contact piece need to be assembled with the switch shell, one end of the switch elastic piece is connected with the connecting piece or the switch shell, and the other end is connected with the movable contact piece, and the assembly of the double-grade micro switch is simple.

[0049] Finally, by pressing the gear piece 14, the movable contact piece 13 is driven to move by the switch elastic piece 12 to be electrically connected with the common contact piece 2, the double-grade micro switch has a better hand feeling; finally, the gear piece 14 is reset by the switch elastic piece 12, and the gear piece 14 collides with the switch shell 3, so that the consumer can judge that the gear piece 14 has been reset according to the sound, and the use is convenient.

[0050] Referring to Figure 4 , the switch elastic piece 12 is in a straight line, for example, a straight line spring, and the spring can be a spiral spring and the like. The switch elastic piece 12 is inclined upward relative to the horizontal plane at an angle b when in the natural state; the movable contact piece 13 is inclined upward relative to the horizontal plane at an angle a in the initial position, and a > b.

[0051] As set forth above, since a > b, the movable contact piece 13 has a larger stroke to make the movable contact point 1321 contact the stationary contact point 21 of the common contact piece 2, and correspondingly, a larger stroke is also required to remove the contact, and therefore, the reliability of the contact between the movable contact point 1321 and the stationary contact point 21 can be improved.

[0052] In some embodiments, 20 degrees ≤ a ≤ 30 degrees, and / or, 5 degrees ≤ b ≤ 15 degrees.

[0053] As set forth above, a and b satisfy the above conditions, and further a larger stroke is required to remove the contact, and therefore, the reliability of the contact between the movable contact point 1321 and the stationary contact point 21 can be further improved.

[0054] Referring to Figures 2 to 4 , the movable contact piece 13 includes an assembly part 131 and a contact part 132 including the movable contact point 1321. The assembly part 131 and the contact part 132 are both in a straight plate shape and form an obtuse angle. The obtuse angle is c, and c is an angle of 170 degrees, 172 degrees, 175 degrees, 178 degrees, and the like. Opposite sides of the assembly part 131 are respectively provided with insertion arms 1311. Opposite sides of the connecting piece 11 are respectively provided with insertion grooves 1111, and the insertion arms 1311 and the corresponding insertion grooves 1111 are inserted to realize the rotary connection.

[0055] As set forth above, since the assembling part 131 is in a straight plate shape, and is rotatably connected by being inserted into the slot 1111 and the inserting arm 1311, and the movable contact 13 is inclined upward relative to the horizontal plane, when the switch elastic member 12 drives the movable contact 13 to move, the straight and inclined movable contact moves by abutting against the side wall of the slot, the rotation of the movable contact 13 is smoother, and the gear part 14 is more easily pressed.

[0056] Referring to Figure 1 and Figure 2 , the switch housing 3 comprises a first side cover 31 and a second side cover 32. The first side cover 31 and the second side cover 32 are overlapped in the first direction F to enclose a containing cavity containing the contact assembly 1 and the common contact 2. The first side cover 31 and the second side cover 32 are assembled by a snap structure in the application Figure 1 and Figure 2 , the snap structure comprises a buckle 312 arranged on the first side cover 31 and a slot 322 arranged on the second side cover 32. The buckle 312 is buckled with the slot 322. As for the assembly of the contact assembly 1 and the common contact 2 with the components of the switch housing 3 and the location in the containing cavity, in the embodiment, the connecting part 11 is assembled in the slot 311 of the first side cover 31, the movable contact 13 is rotatably connected with the connecting part 11, one end of the switch elastic member 12 is fixed with the connecting part 11, and the other end of the switch elastic member 12 is fixed with the movable contact 13. Then, the second side cover 32 is overlapped in the first direction F. After the first side cover 31 and the second side cover 32 are overlapped, the gear part 14 is extended out of the switch housing 3 in the second direction f1 from the containing cavity, the second direction f1 is perpendicular to the first direction F. The connecting part 11 is extended out of the switch housing 3 in the third direction f2 from the containing cavity. The third direction f2 is opposite to the second direction f1.

[0057] As set forth above, since the first side cover 31 and the second side cover 32 are overlapped in the first direction, the gear part 14 is extended out of the switch housing 3 in the second direction f1, and the connecting part 11 is extended out of the switch housing 3 in the third direction f2 opposite to the second direction f1, and the second direction f1 is perpendicular to the first direction F, the contact assembly 1 and the common contact 2 can be assembled in the first side cover 31, and then the first side cover 31 and the second side cover 32 are overlapped in the first direction, so that the double-gear micro switch 10 is easy to assemble.

[0058] In the second aspect, referring to Figure 7 , Figure 8 and Figure 14This application discloses a host 100. The host 100 includes any of the aforementioned dual-position microswitches 10, two buttons, two button springs 30, and a motor 40. The buttons and button springs 30 correspond one-to-one with the position switches 14. More specifically, in... Figures 7 to 11 In this embodiment, the left-side button, the left-side button spring 30, and the left-side gear shifter 14 correspond one-to-one, enabling first-gear start-up. Similarly, the right-side button, the right-side button spring 30, and the right-side gear shifter 14 correspond one-to-one, enabling second-gear start-up. When one of the buttons is pressed, the corresponding button spring 30 deforms, and the corresponding gear shifter 14 is pressed, causing the connecting member 11 corresponding to the pressed gear shifter to connect with the motor 40. Specifically, in some embodiments, see [link to specific embodiments]. Figure 9 , Figure 4 and Figure 12 In standby mode or when the host is not working, no button is pressed, and therefore no corresponding shift button 14 is pressed. See also Figure 12 , Figure 10 , Figure 5 , Figure 11 The selector switch 90 is used to select between gear 1 and gear 2, and can be a diode, etc. The keypad 20 includes two key contacts 201. If the two keys are not integrated, each key can include one key contact 201. When a key (corresponding to gear 14) is pressed, the left key contact 201 contacts the left gear 14, causing the left gear 14 (gear 1) to be pressed. The connecting member 11 corresponding to the pressed gear 14, i.e., the connecting member 11 corresponding to gear 1 (the left connecting member 11), is connected to the motor 40. See also... Figure 12 , Figure 11 and Figure 6 When another button (corresponding to the second gear shift member 14) is pressed, the button contact 201 on the right side contacts the right gear shift member 14, causing the right gear shift member 14 (second gear) to be pressed down. The connecting member 11 corresponding to the pressed gear shift member 14, i.e., the connecting member 11 corresponding to the second gear (the connecting member 11 on the right side), is connected to the motor 40. Of course, in this embodiment, the two buttons can be two independent buttons (i.e., the first button and the second button), or they can be as follows: Figures 7 to 11 In that way, the two buttons are integrated into a single button panel 20.

[0059] As described above, the host 100 has at least the beneficial effects of the dual-position micro switch 10, for example, the smaller size of the host can be achieved because the dual-position micro switch 10 is smaller.

[0060] See Figures 7 to 11, the host 100 comprises a host casing 50, and the two keys are integrated into a key plate 20. The key plate 20 and the host casing 50 form a seesaw, in the embodiment of the present application, the host casing 50 comprises a main casing 501 and a sub casing 502. The key plate 20 is rotationally connected with the sub casing 502 to form the seesaw. When one end of the key plate 20 is pressed, the gear 14 corresponding to the pressed end is pressed, and the opposite end is raised. See Figure 10 , when the left end of the key plate 20 is pressed, the gear 14 corresponding to the left end is pressed, and the motor 40 works in the first gear at the corresponding speed. Figure 11 , when the right end of the key plate 20 is pressed, the gear 14 corresponding to the right end is pressed, and the motor 40 works in the second gear at the corresponding speed.

[0061] As described above, since the two keys are integrated into the key plate, the structure of the host 100 is simple, the parts are few, and the assembly of the host 100 is simple.

[0062] See Figures 7 to 11 and Figure 14 , the host 100 comprises a motor bracket 60. The host casing 50 comprises a main casing 501 and a sub casing 502. The sub casing 502 and the motor bracket 60 are assembled at the same end of the main casing 501, and the motor bracket 60 is at least partially located in the main casing 501. Figure 8 It is shown that the motor bracket 60 is entirely located in the main casing 501. The two-gear micro switch 10 is assembled in the motor bracket 60 and located in the sub casing 502. The motor 40 is hoisted in the motor bracket 60 and opposite to the two-gear micro switch 10, and located in the main casing 501. The key plate 20 and the sub casing 502 form the seesaw, and the key plate 20 also covers the two key elastic members 30 and the two-gear micro switch 10.

[0063] As described above, by assembling the two-gear micro switch 10 in the motor bracket 60 and locating it in the sub casing 502, the key plate 20 and the sub casing 502 form the seesaw, and also cover the two-gear micro switch 10 and the key elastic members 30, so that the two-gear micro switch 10 and the key elastic members 30 do not occupy the lateral dimension of the host 100. Furthermore, the motor bracket 60 is at least partially located in the main casing 501, and the motor 40 is located in the main casing 501, so that the axial dimension of the host 100 along the motor shaft of the motor 40 is small. Finally, the lateral and axial dimensions of the host 100 are both small, and because of the shielding of the key plate 20, only the key plate 20 and the main casing 501 can be seen, and the host 100 is beautiful.

[0064] SeeFigure 13 、 Figure 7 and Figure 8 The motor frame 60 is provided with a switch fixing part 601. The switch fixing part 601 constitutes a switch mounting space 6011. The switch fixing part 601 is four columns in Figure 13 , which enclose an open switch mounting space 6011. Alternatively, the switch mounting part 601 can also be a closed space surrounded by four side walls in the circumferential direction. However, the structure of the switch fixing part 601 is not limited to the foregoing structure, and can constitute a switch mounting space 6011 for mounting the double-position microswitch 10. Referring to Figures 9 to 11 , the double-position microswitch 10 is located in the switch mounting space 6011 and is clamped by the switch fixing part 601.

[0065] As described above, by locating the double-position microswitch 10 in the switch mounting space 6011 and clamping it by the switch fixing part 601, the double-position microswitch 10 is more convenient to assemble while ensuring that the size of the main machine 100 is small.

[0066] Referring to Figure 7 、 Figure 8 and Figure 14 , the main machine 100 includes a safety switch 701 and a safety link 702. Referring to Figure 12 , the safety switch 701, the double-position microswitch 10 and the motor 40 are connected in series. The safety link 702 moves upward under force and closes the safety switch 701. After the safety switch 701 is closed, the key plate 20 is pressed to start the motor 40, otherwise, even if the key plate 20 is pressed to make the gear 14, the motor 40 cannot be started under the condition that the safety switch 701 is open. The main housing 501 is cylindrical, and the safety switch 701 is assembled to the side of the motor frame 60 and located in the main housing 501. Referring to Figure 13 , the side of the motor frame 60 is provided with a groove 602. The groove 602 is provided with a plug-in column 603 extending transversely (which can be considered as the radial direction of the motor shaft of the motor). The safety switch 701 is located in the groove 602 and is inserted with the plug-in column 603. After the motor frame 60 is assembled to the main housing 501, the safety switch 701 is located in the main housing 501.

[0067] As described above, since the main housing 501 is cylindrical, the safety switch 701 is assembled to the side of the motor frame 60 and located in the main housing 501, so that the overall size of the safety switch 701 and the motor frame 60 is smaller than the diameter of the main housing 501, which is beneficial to the small size of the main machine 100 and the beauty of the main machine 100.

[0068] Referring to Figure 7 , Figure 8 and Figure 14 , the main machine 100 comprises a main housing 501, a motor bracket 60, a top damping piece 801 and a bottom damping piece 802. The motor bracket 60 is assembled to the main housing 501, and the motor 40 is hoisted to the motor bracket 60 and located in the main housing 501. The top damping piece 801 abuts against the top of the motor 40 and the motor bracket 60, and the bottom damping piece 802 abuts against the bottom of the motor 40 and the bottom of the main housing 501.

[0069] As arranged above, since the top damping piece 801 abuts against the top of the motor 40 and the motor bracket 60, and the bottom damping piece 802 abuts against the bottom of the motor 40 and the bottom of the main housing 501, thus, through the damping effect of the top damping piece 801 and the bottom damping piece 802, the main machine 100 has low noise during operation.

[0070] In a third aspect, referring to Figure 14 , the application discloses a food processor. The food processor comprises any one of the foregoing main machines 100, a food material container 200 and a stirring assembly 300. The food material container 200 is not limited, and in the embodiments of the application, the food material container 200 comprises a stirring bowl 2011 and a bowl cover 2012. The bowl cover 2012 covers the stirring bowl 2011. The motor 40 of the main machine 100 drives the stirring assembly 300 to rotate in the food material container 200. In the embodiment, the bowl cover 2012 has a through hole, the main machine 100 is placed on the bowl cover 2012, and the main machine 100 is connected with the stirring assembly 300 through the through hole on the bowl cover 2012, so that the motor 40 of the main machine 100 drives the stirring assembly 300 to rotate in the food material container 200 under the condition of being started.

[0071] As arranged above, the food processor has at least the beneficial effects brought by the main machine 100 or the double-gear micro switch 10.

[0072] It should be noted that the technical solutions or technical features described in the above embodiments can be combined or supplemented with each other without conflict, and the scope of protection of the application is not limited to the precise structures described in the above embodiments and shown in the drawings; any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the application shall be included in the scope of protection of the application.

Claims

1. A two-step microswitch, characterized by, The double-gear microswitch comprises two contact assemblies (1), a common contact (2) and a switch housing (3); The common contact (2) is assembled with the switch housing (3) and comprises two static contacts (21); Each contact assembly (1) comprises a connecting piece (11), a switch elastic piece (12), a moving contact (13) and a gear piece (14); the connecting piece (11) is assembled with the switch housing (3), one end of the switch elastic piece (12) is connected with the connecting piece (11) or the switch housing (3), and the other end of the switch elastic piece (12) is connected with the moving contact (13); the moving contact (13) comprises a moving contact (1321); the gear piece (14) extends out of the switch housing (3); The gear pieces (14) of the two contact assemblies (1) are pressed alternatively, the pressed gear piece (14) makes the switch elastic piece (12) deform, the switch elastic piece (12) drives the moving contact (13) to move from an initial position until the moving contact (1321) of the moving contact (13) contacts a corresponding static contact (21) to make the corresponding connecting piece (11) electrically connected with the common contact (2); When the gear piece (14) is no longer pressed, the switch elastic piece (12) changes from the deformed state to a natural state and drives the gear piece (14) to reset and drives the moving contact (1321) of the moving contact (13) to separate from the corresponding static contact (21) until the moving contact (13) returns to the initial position.

2. The two-step microswitch according to claim 1, characterized in that The switch elastic piece (12) is linear; when the switch elastic piece (12) is in the natural state, an angle of the switch elastic piece (12) upwardly inclined relative to a horizontal plane is b; The moving contact (13) is rotationally connected with the connecting piece (11); the moving contact (13) is in the initial position, an angle of the moving contact (13) upwardly inclined relative to a horizontal plane is a, and a > b.

3. The two-step microswitch according to claim 2, wherein 20 degrees ≤ a ≤ 30 degrees, and / or, 5 degrees ≤ b ≤ 15 degrees; And / or, the moving contact (13) comprises an assembling part (131) and a contact part (132) comprising the moving contact (1321); the assembling part (131) and the contact part (132) are both straight plates and form an obtuse angle; opposite sides of the assembling part (131) are respectively provided with insertion arms (1311), and opposite sides of the connecting piece (11) are respectively provided with insertion grooves (1111); the insertion arms (1311) and the corresponding insertion grooves (1111) are inserted to realize the rotational connection.

4. The two-step microswitch of claim 1, wherein, The switch housing (3) comprises a first side cover (31) and a second side cover (32); the first side cover (31) and the second side cover (32) are cover-closed in a first direction to enclose a containing cavity containing the contact assemblies (1) and the common contact (2); The gear (14) extends from the accommodating cavity to the switch shell (3) in a second direction, which is perpendicular to the first direction; the connecting piece (11) extends from the accommodating cavity to the switch shell (3) in a third direction, which is opposite to the second direction.

5. A host, characterized by The main machine comprises the double-gear micro switch (10), two keys, two key elastic pieces (30) and a motor (40) according to any one of claims 1 to 4; in the case that one of the keys is pressed, a key elastic piece (30) corresponding to the pressed key is deformed, and the corresponding gear (14) is pressed down, so that the connecting piece (11) corresponding to the pressed gear (14) is in communication with the motor (40).

6. The host of claim 5, wherein, The main machine (100) comprises a main machine shell (50), and the two keys are integrally formed as a key plate (20); the key plate (20) and the main machine shell (50) constitute a seesaw, and when one end of the key plate (20) is pressed down and the opposite end is raised, the gear (14) corresponding to the pressed end is pressed down.

7. The host of claim 6, wherein, The main machine comprises a motor rack (60); the main machine shell (50) comprises a main shell (501) and a sub-shell (502); the sub-shell (502) and the motor rack (60) are assembled at the same end of the main shell (501), and the motor rack (60) is at least partially located in the main shell (501); The double-gear micro switch (10) is assembled in the motor rack (60) and located in the sub-shell (502); The motor (40) is hung on the motor rack (60) and located in the main shell (501) opposite to the double-gear micro switch (10); The key plate (20) and the sub-shell (502) constitute the seesaw, and the key plate (20) also covers the two key elastic pieces (30) and the double-gear micro switch (10).

8. The host of claim 7, wherein, The motor rack (60) is provided with a switch fixing part (601) which constitutes a switch mounting space (6011); the double-gear micro switch (10) is located in the switch mounting space (6011) and clamped by the switch fixing part (601); And / or, the main machine (100) comprises a safety switch (701) and a safety connecting rod (702), the safety switch (701), the double-gear micro switch (10) and the motor (40) are connected in series; the safety connecting rod (702) moves upward under force to close the safety switch (701); the main shell (501) is in a cylindrical shape, and the safety switch (701) is assembled on the side of the motor rack (60) and located in the main shell (501).

9. The host of claim 5, wherein, The main machine (100) comprises a main shell (501), a motor rack (60), a top damping piece (801) and a bottom damping piece (802); The motor rack (60) is assembled in the main shell (501); the motor (40) is hung on the motor rack (60) and located in the main shell (501); The top damping piece (801) abuts the top of the motor (40) and the motor frame (60); The bottom damping piece (802) abuts the bottom of the motor (40) and the bottom of the main shell (501).

10. A food processor, characterized in that, The food processor comprises the main machine (100), the food material container (200) and the stirring assembly (300) according to any one of claims 6 to 9, and the motor (40) of the main machine (100) drives the stirring assembly (300) to rotate in the food material container (200) under the condition of starting.

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