WO2017215219A1 - Lock body of interlocking switch and microwave oven - Google Patents

Abstract

Provided are a lock body of an interlocking switch and a microwave oven, wherein the lock body of the interlocking switch comprises a substrate (1), a contact disc member (3), an elastic member (5), and a plurality of microswitches (7). The contact disc member (3) is pivotally connected to the substrate (1), and a rotation axis of the contact disc member (3) is perpendicular to the substrate (1). The microswitches (7) are located on the periphery of the contact disc member (3), and contacts (70a) of the microswitches (7) face the contact disc member (3). A peripheral surface of the contact disc member (3) has a rotation-actuating surface (321) cooperating with an external press member and a plurality of contact surfaces (322) cooperating with the contacts (70a). An interference preventing groove (323) preventing interference with the contacts (70a) is provided between two adjacent contact surfaces (322). When locked, the external press member abuts against the rotation-actuating surface (321), the contact disc member (3) rotates in a forward direction, and the contact surfaces (322) abut against respective contacts (70a) to trigger the microswitches (7). When released, the contact disc member (3) rotates in a reverse direction under the action of the elastic member (5), and the contact surfaces (322) are set apart from the respective contacts (70a) such that the microswitches (7) are reset. The lock body of the interlocking switch can accurately switch the microswitches (7).

Description

 Interlock switch lock body and microwave oven

Technical field

The invention relates to the field of microwave ovens, in particular to a lock body of an interlock switch and a microwave oven.

Background technique

The door hook of the interlock switch of the microwave oven is fixedly connected with the door body of the microwave oven, and the lock body is disposed in the door body of the microwave oven. In order to prevent microwave leakage, when the door body of the microwave oven is opened or closed, the micro switch in the interlock switch needs to be at the door. Trigger or reset in the preset order by the hook.

In the existing interlocking control switch, the door hook is in contact with a plurality of cams, and each cam is matched with the corresponding micro switch, that is, the door hook realizes the safety control of the microwave oven by means of multi-touch, and is controlled by each component. The assembly accuracy between the two, the reliability of the entire control is poor.

Summary of the invention

The main object of the present invention is to provide a lock body of an interlock switch, which aims to solve the technical problem that the lock body of the existing interlock switch cannot reliably switch the micro switch and complete the control when the lock body is engaged with the door hook.

In order to achieve the above object, the lock body of the interlock switch provided by the present invention is configured to cooperate with an external pressing member to implement interlock control, and the lock body includes a substrate, a touch panel member, an elastic member and a plurality of micro switches; ,

The touch pad member is pivotally connected to the substrate, and an axis of rotation of the touch pad member is perpendicular to the substrate; the micro switch is located at a periphery of the touch pad member, and a contact point of the micro switch is oriented The touch pad member;

The peripheral surface of the touch pad member has a spin surface that cooperates with the external pressing member, and a plurality of contact surfaces that are engaged with the contact, and a contact between the two adjacent contact surfaces is formed to avoid the contact Avoidance slot;

When the locking is performed, the external pressing member abuts against the rotating surface, the contact member rotates in the forward direction, and each contact surface abuts against the corresponding contact, triggering each micro switch;

When released, the touch pad member reverses under the action of the elastic member, and each contact surface leaves the corresponding contact, and each micro switch is reset.

Preferably, the touch panel comprises a plate-shaped disk body and a flange vertically disposed at an edge of the disk body, and the spin surface, the contact surface and the avoidance groove are formed on the flange.

Preferably, the avoidance groove has a slope connected to the contact surface, and when the contact member rotates in the forward direction, the contact abuts the slope and then abuts the contact surface.

Preferably, the disk body is provided with a mounting hole, and the substrate is convexly provided with a card slot structure at a position corresponding to the mounting hole; the elastic member is a torsion spring, and a leg portion of the elastic member The inner wall surface of the mounting hole abuts, and the other leg portion abuts against the groove wall surface of the card slot structure.

Preferably, the card slot structure comprises a sidewall and a top wall, the sidewall is perpendicular to the substrate, the top wall is disposed at an end of the sidewall away from the substrate, and the elastic member is located at the Between the top wall and the substrate.

Preferably, the substrate is provided with a rotating shaft, and the disk body is provided with a shaft hole adapted to the rotating shaft.

Preferably, the plurality of micro switches include a primary switch, a secondary switch and a monitoring switch. When the lock is attached, the touch device abuts the contacts of the monitoring switch, the secondary switch and the primary switch; when released, The touch pad member sequentially leaves the contacts of the primary switch, the secondary switch, and the monitoring switch.

Preferably, the axial angle of each contact surface relative to the axis of rotation of the touch pad member is such that the contact surface corresponding to the monitoring switch is larger than the contact surface corresponding to the secondary switch is larger than the secondary switch Corresponding contact surface.

Preferably, the body of the micro switch is provided with at least two pin holes, and the substrate is provided with a plurality of positioning posts adapted to the pin holes, and the micro switch is sleeved on the positioning post And detachably fixed with the substrate.

The invention also provides a microwave oven, comprising a door hook lock body, the lock body comprising a substrate, a touch panel member, an elastic member and a plurality of micro switches; wherein

The touch pad member is pivotally connected to the substrate, and an axis of rotation of the touch pad member is perpendicular to the substrate; the micro switch is located at a periphery of the touch pad member, and a contact point of the micro switch is oriented The touch pad member;

The peripheral surface of the touch pad member has a spin surface matched with the door hook, and a plurality of contact faces engaged with the contact, and a avoidance of the contact between the two adjacent contact faces is formed Bit slot

When the lock is attached, the door hook abuts the rotation surface, the touch device rotates in the forward direction, and each contact surface abuts the corresponding contact, triggering each micro switch;

When released, the touch pad member reverses under the action of the elastic member, and each contact surface leaves the corresponding contact, and each micro switch is reset.

Preferably, the lock body is located in a furnace body of a microwave oven, and the door hook is disposed on the door body of the microwave oven.

Preferably, the microwave oven has a cylindrical shape as a whole.

The lock body of the interlock switch of the present invention is provided with a plurality of contact faces on the circumferential surface of the touch panel member for abutting with the contacts of the plurality of micro switch, and the door hook can realize multiple multiples only by touching the touch device The switching of the micro switch thus improves the stability of the control.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below. Obviously, the drawings in the following description are only It is a certain embodiment of the present invention, and those skilled in the art can obtain other drawings according to the structures shown in the drawings without any creative work.

1 is a schematic structural view of an embodiment of a lock body of an interlock switch according to the present invention;

2 is a top plan view of the interlock switch of FIG. 1;

Figure 3 is a front elevational view of the interlock switch of Figure 2;

Figure 4 is a cross-sectional structural view taken along line IV-IV of Figure 2;

Figure 5 is a top plan view showing another state of the interlock switch door hook of Figure 1;

Figure 6 is a front elevational view of the interlock switch of Figure 5;

Figure 7 is a cross-sectional structural view taken along line VII-VII of Figure 5;

Figure 8 is a schematic exploded view of the interlock switch of Figure 1;

FIG. 9 is a schematic structural view of another angle of the interlock switch of FIG. 1. FIG.

Description of the reference numerals:

Label	name	Label	name	Label	name
1	Substrate	172	Mounting plate	322	Contact surfaces
11	Card slot structure	18	Third support plate	323	Avoidance slot
111	Side wall	181	Fixed hole	324	Bevel
112	Top wall	19	Card convex	4	Door hook
12	Rotating shaft	2	Baffle	41	Long pole
121	Stop	twenty one	Slip surface	42	Short rod
13	Positioning column	twenty two	Via	5	Elastic part
14	Buckle	twenty three	Sloping plate	6	Elastic part
15	Passage	twenty four	Push board	7	Micro Switch
161a	First chute section	241	Positioning round table	70a	Contact
161b	Second chute section	3	Touch plate	70b	Pin hole
162	First support plate	31	Disk body	71	Primary switch
163	Second support plate	311	Mounting holes	72	Secondary switch
164	Opening	312	Shaft hole	73	Monitoring switch
165	First side panel	313	Slot	8	Cover
166	Second side panel	314	Boss	81	Through hole
17	Positioning member	32	Flange	82	Fixed column
171	Positioning plate	321	Spin surface	83	Card hole

The implementation, functional features, and advantages of the present invention will be further described in conjunction with the embodiments.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

It should be noted that if there is a directional indication (such as up, down, left, right, front, back, ...) in the embodiment of the present invention, the directional indication is only used to explain in a certain posture (as shown in the drawing) The relative positional relationship between the components, the motion situation, and the like, if the specific posture changes, the directional indication also changes accordingly.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present invention, the description of the "first", "second", etc. is used for the purpose of description only, and is not to be construed as an Its relative importance or implicit indication of the number of technical features indicated. Thus, features defining "first" or "second" may include at least one of the features, either explicitly or implicitly. In addition, the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. It is also within the scope of protection required by the present invention.

The invention provides a lock body of an interlock switch.

In the embodiment of the present invention, as shown in FIG. 1 , FIG. 3 , FIG. 4 and FIG. 8 , the lock body of the interlock switch is used for engaging with an external pressing member for interlock control, and the lock body includes the substrate 1 and the touch pad. Piece 3, elastic member 5 and a plurality of micro switches; wherein

The touchpad 3 is pivotally connected to the substrate 1, and the axis of rotation of the touchpad member 3 is perpendicular to the substrate 1; the micro switch is located at the periphery of the touchpad member 3, and the contact 70a of the microswitch is facing the touchpad member 3;

The peripheral surface of the touch panel member 3 has a spin surface 321 that cooperates with the door hook 4, and a plurality of contact surfaces 322 that cooperate with the contact 70a. The avoidance of the avoidance contact 70a is formed between the adjacent two contact surfaces 322. Slot 323;

Referring to FIG. 5 to FIG. 7 , when the lock is attached, the external pressing member abuts against the spin surface 321 , the touch panel 3 rotates in the forward direction, and the contact surfaces 322 abut against the corresponding contacts 70 a to trigger the micro switch;

Referring to Figures 2 to 4, when released, the contact member 3 is reversely rotated by the elastic member 5, and the contact faces 322 are separated from the corresponding contacts 70a, and the microswitches are reset.

In this embodiment, generally, the external pressing member is fixedly connected with the door hook 4 of the microwave oven (the hook portion is not shown). When the door body of the microwave oven is closed, the door hook 4 is elastically locked with the microwave body. The elastic buckle is also connected to the opening button of the microwave oven. The insertion direction of the door hook 4 is parallel to the plane of the substrate 1. The substrate 1 is used to provide mounting support for other components of the lock body to ensure the positional cooperation relationship between the components.

The contact surface of the touch panel 3 is provided with a plurality of contact surfaces 322 for touching and leaving the contact 70a of the corresponding micro switch in a preset order. The avoidance slot 323 can prevent the corresponding micro switch from being non-preset. Interference. The elastic member 5 is for resetting the contact member 3 after the force of the door hook 4 is removed.

The number of micro switches can be two, three or four, depending on the design requirements. Generally, the main functions of the micro switch are: the total circuit control of the microwave oven, the control of the switch door of the microwave oven, and the control of the switch circuit.

The lock body of the interlock switch of the present invention is provided with a plurality of contact faces 322 on the circumferential surface of the touch panel member 3 for abutting against the contacts 70a of the plurality of micro switch, and the door hook 4 only needs to touch the touch pad member 3 Switching of multiple microswitches can be achieved, thus improving the stability of the control.

In addition, since the lock body of the present invention cooperates with the door hook 4 to achieve less interlocking control, the structure is more compact and the installation is less restricted, and the microwave oven of the side opening door can be applied to the top door. Microwave oven.

Further, referring to FIG. 8 and FIG. 9 together, in an embodiment, the touch panel member 3 includes a plate-shaped disk body 31 and a flange 32 vertically disposed at an edge of the disk body 31. The spin surface 321 is in contact with The face 322 and the avoidance groove 323 are formed on the flange 32.

In the present embodiment, it can be understood that if the thin-plate structure is simply applied to the touch panel member 3, the area of the contact surface 322 which can be formed by the circumferential surface of the touch panel member 3 is relatively small, so that the touch panel member 3 is When the axial mounting size fluctuates greatly, it may not be ensured that the contact surface 322 is in contact with the contact 70a of the corresponding micro switch. By providing the flange 32, the width in the axial direction of the contact surface 322 can be increased, so that the stability of the engagement of the contact surface 322 with the contact 70a can be improved.

Further, in an embodiment, the avoidance groove 323 has a slope 324 connected to the contact surface 322. When the contact member 3 rotates in the forward direction, the contact 70a abuts against the slope 324 and then abuts the contact surface 322.

In this embodiment, it can be understood that although the end of the contact 70a is generally provided with rounded corners, if the angle of the groove wall surface adjacent to the contact surface 322 of the avoidance groove 323 and the corresponding contact surface 322 is small, It is possible to cause the contact 70a to be stuck in the avoidance groove 323. Therefore, by providing the inclined surface 324 connected to the contact surface 322 in the avoidance groove 323, it is ensured that the contact 70a smoothly slides to cooperate with the corresponding contact surface 322. The inclined surface 324 mainly serves as a guide. Therefore, the inclined surface 324 may be any one of a planar shape, a concave curved surface, and a convex curved surface.

Further, the disk body 31 is provided with a mounting hole 311, and the card slot 1 is convexly disposed at a position corresponding to the mounting hole 311; the elastic member 5 is a torsion spring, and one leg portion of the elastic member 5 and the mounting hole 311 The inner wall surface abuts, and the other leg portion abuts against the groove wall surface of the card slot structure 11.

In this embodiment, since the mounting hole 311 is provided on the disk body 31, the function of the foregoing embodiment of the touch pad member 3 is not affected, and at the same time, the mounting structure of the elastic member 5 - the card slot structure 11 can be disposed on the substrate 1 The corresponding position of the mounting hole 311 makes the structure of the lock body more compact, reducing the occupation of the installation space.

Further, the card slot structure 11 includes a sidewall 111 and a top wall 112. The sidewall 111 is perpendicular to the substrate 1. The top wall 112 is disposed at an end of the sidewall 111 away from the substrate 1. The elastic member 5 is located at the top wall 112 and the substrate 1. between.

In the present embodiment, the top wall 112 of the card slot structure 11 can extend the elastic member 5 in the direction away from the substrate 1, and can enhance the ability of the elastic member 5 to prevent falling off in a vibrating environment. Preferably, in order to facilitate molding, the substrate 1 is provided with a through groove 15 at a position opposite to the top wall 112. Therefore, when the substrate 1 and the card slot structure 11 are integrally produced by an injection molding process, the mold release is more advantageous, and in addition, the inspection is also convenient. The installation of the elastic member 5.

Further, the substrate 1 is provided with a rotating shaft 12, and the disk body 31 is provided with a shaft hole 312 adapted to the rotating shaft 12. In the present embodiment, the rotating shaft 12 is disposed on the substrate 1. When the mounting, the touch plate member 3 is directly put on the rotating shaft 12, preferably, in order to achieve the axial limit of the contact member 3, the rotating shaft 12 is A stopper 121 is provided at one end away from the substrate 1, and the stopper 121 abuts against a side of the disk body 31 facing away from the substrate 1. Specifically, a side of the disc body 31 facing away from the substrate 1 is provided with a boss 314, and the shaft hole 312 is formed on the boss 314. Thus, the length of the shaft hole 312 can be increased, and the inner wall surface of the shaft hole 312 is provided with a stopper With slot 313.

Further, the plurality of micro switches include a primary switch 71, a secondary switch 72, and a monitoring switch 73. When locked, the touchpad 3 abuts the contact 70a of the monitoring switch 73, the secondary switch 72 and the primary switch 71 in sequence. When released, the touch panel member 3 sequentially leaves the primary switch 71, the secondary switch 72, and the contact 70a of the monitor switch 73.

In this embodiment, the primary switch 71 is used to control the overall circuit of the microwave oven, the secondary switch 72 is used to control the microwave door opening and closing detection circuit, and the monitoring switch 73 is used to switch the primary switch 71 and the secondary switch 72. Controlled.

Further, the axial angle of each of the contact faces 322 relative to the axis of rotation of the touch panel member 3 is such that the contact surface 322 corresponding to the monitoring switch 73 is larger than the corresponding contact surface 322 of the secondary switch 72 is greater than the secondary switch 72. Corresponding contact surface 322.

In this embodiment, when the distances of the contact faces 322 from the axis of the touch panel member 3 are equal, the relationship between the lengths of the contact faces 322 along the circumferential direction of the touch panel member 3 is such that the contact surface 322 corresponding to the monitor switch 73 is larger than The corresponding contact surface 322 of the secondary switch 72 is larger than the corresponding contact surface 322 of the secondary switch 72.

Further, the body of the micro switch is provided with at least two pin holes 70b, and the substrate 1 is provided with a plurality of positioning posts 17 adapted to the pin holes 70b, the micro switch cover sets the position column 17, and the substrate 1 detachable and fixed.

In this embodiment, the pin hole 70b of the micro switch is matched with the positioning post 17 on the substrate 1, so that the positional accuracy of the micro switch can be ensured, and then the contact 70a of the micro switch can be ensured with the touch pad 3. The contact surface 322 is mated. Preferably, in order to realize the detachable fixing of the micro switch, a plurality of buckles 14 are protruded from the substrate 1 , and each micro switch is sandwiched between the two buckles 14 .

Further, the lock body of the interlock switch further includes a baffle plate, the baffle 2 is formed with a sliding surface 21, and the middle portion of the baffle 2 is provided with a through hole 22; the substrate 1 is provided with a chute structure, the baffle 2 and the sliding plate The sliding groove of the groove structure is slidingly matched; the door hook 4 has a long rod 41 and a short rod 42 arranged in parallel,

5 to 7, when the lock is attached, the long rod 41 abuts the slip surface 21, and the through hole 22 abuts the short rod 42, and the short rod 42 passes through the through hole 22 and abuts against the spin surface 321 to make the touch The disk member 3 is rotated in the forward direction;

Referring to Figures 2 to 4, after release, the short rod 42 is withdrawn from the through hole 22, and under the action of the elastic member 6, the through hole 22 is staggered by the short rod 42, and the contact member 3 is reset by the elastic member 5.

In this embodiment, by adding a baffle 2, the baffle 2 is provided with a chute structure on the substrate 1. Initially, the through hole 22 of the baffle 2 and the short rod 42 are staggered, so that the foreign object cannot be The contact hole member 3 is touched by the insertion hole corresponding to the short rod 42; on the other hand, the foreign object is engaged with the sliding surface 21 of the baffle 2 through the corresponding hole corresponding to the long rod 41, if there is no other foreign object at the same time As a function, the touch pad member 3 is still not touched and the touch pad member 3 is rotated. It can be seen that by setting the baffle 2, the foreign object can be prevented from touching the touch pad member 3, and the false touch of the micro switch is prevented, thereby enhancing the safety of the interlock switch.

Further, please refer to FIG. 8 and FIG. 9 together. In an embodiment, the chute structure includes a first support plate 162 and a second support plate 163 vertically disposed on the substrate 1. The first support plate 162 and the second The support plate 163 and the substrate 1 are enclosed to form a chute;

An opening 164 is formed between the first support plate 162 and the second support plate 163. When the through hole 22 abuts the short rod 42, the opening 164 is opposed to the through hole 22.

In the present embodiment, the first support plate 162 and the second support plate 163 are at the upper limit of the baffle 2 in the insertion direction of the door hook 4, and the substrate 1 can be in the direction perpendicular to the substrate 1 at the upper limit of the baffle 2, the baffle 2 The cooperation with the chute ensures that the baffle 2 can move in a predetermined direction. The first support plate 162 and the second support plate 163 can ensure that the interlock switch structure can be horizontally installed, that is, after the installation, the first support plate 162 and the second support plate 163 are parallel to the horizontal plane.

Further, a first side plate 165 is protruded from a side of the first support plate 162 away from the touch plate member 3, and a second side plate 166 is protruded from a side of the second support plate 163 away from the touch plate member 3;

The first support plate 162, the first side plate 165 and the substrate 1 are enclosed to form a first sliding groove segment 161a, and the second supporting plate 163, the second side plate 166 and the substrate 1 are enclosed to form a second sliding groove segment 161b.

In the present embodiment, the first side plate 165 and the second side plate 166 may be at the upper limit of the baffle 2 in a direction away from the substrate 1, thereby preventing the baffle 2 from shifting relative to a predetermined direction during the movement.

Further, referring to FIG. 7 to FIG. 9 , in an embodiment, the first side plate 165 , the substrate 1 is in the first sliding slot segment 161 a , and the second side plate 166 , the substrate 1 is in the second sliding slot segment 161 b . A stop protrusion 167 is disposed therein, and the stop protrusion 167 is configured to limit the baffle 2 in a direction away from the first support plate 162 or the second support plate 163.

In the present embodiment, by providing the stopper projection 167, even if the interlock switch structure is vertically mounted, that is, after the installation, the first support plate 162 and the second support plate 163 are perpendicular to the horizontal plane, the shutter 2 is not easily displaced. Preferably, one end of the stopper projection 167 remote from the door hook 4 is formed with a guide surface 168 facing the first support plate 162 or the second support plate 163. Thus, during assembly, the baffle 2 abuts against the guide surface 168 and is sequentially guided to the second chute section 161b and the first chute section 161a.

Further, one end of the baffle 2 near the long rod 41 forms a slanting plate 23 which is inclined to the side close to the touch panel member 3, and the sliding surface 21 is formed on the side of the swash plate 23 facing away from the touch panel member 3.

In the present embodiment, in order to ensure the movement stroke of the shutter 2 so that the through hole 22 in the shutter 2 can sufficiently shift the short rod 42, a sufficient length of the sliding surface 21 is required to cooperate with the long rod 41. However, if the slip surface 21 is formed on the baffle 2, in the relatively same case, the thickness of the baffle 2 needs to be increased accordingly. By providing the swash plate 23 and the sliding surface 21 on the damper 2 on the swash plate 23, the same function can be achieved while reducing the thickness of the baffle 2, and further reducing the installation space of the baffle 2, thereby making the interlock The internal structure of the switch structure is more compact.

Further, the opposite end of the baffle plate 2 opposite to the swash plate 23 is vertically provided with a push plate, and the positioning member 17 is convexly disposed on the base plate 1. The positioning member 17 includes a positioning plate 171 and a mounting plate disposed opposite to each other, and the push plate is located at the positioning plate 171. And between the mounting plates, the elastic member 6 is located between the push plate and the mounting plate.

In this embodiment, in some embodiments, in order to prevent the baffle 2 from loosening, the elastic member 6 needs to be kept in a compressed state at all times. Therefore, the push plate cooperates with the positioning plate 171 to ensure the initial position of the baffle 2, thereby ensuring the block. The slip surface 21 of the plate 2 can be properly mated with the long rod 41. Preferentially, the position of the elastic member 6 is ensured, and a side of the push plate facing the mounting plate is provided with a positioning circular table 241. The elastic member 6 is a compression spring, and an end of the elastic member 6 facing away from the mounting plate is sleeved on the positioning circular table 241.

Further, a cover plate 8 is further included. The cover plate 8 is vertically mounted on a side of the baffle 2 facing away from the touch panel member 3. The cover plate 8 is provided with two through holes 81 adapted to the long rod 41 and the short rod 42.

In the embodiment, by providing the cover plate 8, the foreign object can be prevented from falling into the interlock switch structure, and the waterproof function can be achieved. When the interlock switch structure is horizontally installed, the outer side of the cover 8 is further provided. There is an annular groove surrounding the two through holes 81, so that the water on the outer side of the cover 8 can be prevented from entering the inside of the interlock switch along the through hole 81 to some extent.

Further, the cover 8 is provided with a fixing post 82 at one end and a card hole 83 at the other end, and the fixing post 82 is located on a side of the cover 8 facing the substrate 1;

A third support plate 18 for supporting the cover plate 8 is vertically disposed on the base plate 1. The third support plate 18 is provided with a fixing hole 181 adapted to the fixing post 82. The base plate 1 is provided with a card adjacent to the edge of the cover plate 8. The hole 83 of the hole 83 is fitted.

In this embodiment, the cover 8 can be detachably fixed to the substrate 1. Preferably, the height of the fixing post 82 is greater than the height of the locking protrusion 19, so that when assembling, the fixing post 82 is first engaged with the fixing hole 181, which is equivalent to Pre-positioning, and then aligning and engaging the card hole 83 with the card protrusion 19 on the substrate 1 completes the mounting of the cover 8.

The present invention also provides a microwave oven including a door hook and a lock body. The specific structure of the lock body of the interlock switch refers to the above embodiment. Since the microwave oven adopts all the technical solutions of all the above embodiments, at least the above embodiment is provided. All the beneficial effects brought about by the technical solutions are not repeated here. among them,

The door hook is configured to cooperate with the lock body to implement interlock control. The use of the lock body of the present invention in the microwave oven not only can exert the advantages of stable control of the lock body, but also can take advantage of the compact structure of the lock body. The whole of the microwave oven may be a square body, a rectangular parallelepiped, a cylindrical shape or an elliptical cylinder shape. Preferably, the lock body is located in a furnace body of a microwave oven, and the door hook 4 is disposed on the door body, and the microwave oven is generally cylindrical. .

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structural transformation, or direct/indirect use, of the present invention and the contents of the drawings are used in the inventive concept of the present invention. It is included in the scope of the patent protection of the present invention in other related technical fields.

Claims (20)

1.  A lock body of an interlock switch, wherein the lock body comprises a substrate, a touch panel member, an elastic member and a plurality of micro switches; wherein

   The touchpad member is pivotally connected to the substrate, the micro switch is located at a periphery of the touchpad member, and the contact of the microswitch is directed toward the touchpad member;

   The peripheral surface of the touch pad member has a spin surface that cooperates with the external pressing member, and a plurality of contact surfaces that are engaged with the contact, and a contact between the two adjacent contact surfaces is formed to avoid the contact Avoidance slot;

   When the locking is performed, the external pressing member abuts against the rotating surface, the contact member rotates in the forward direction, and each contact surface abuts against the corresponding contact, triggering each micro switch;

   When released, the touch pad member reverses under the action of the elastic member, and each contact surface leaves the corresponding contact, and each micro switch is reset.
2. The lock body according to claim 1, wherein the touch panel member comprises a plate-shaped disk body and a flange vertically disposed at an edge of the disk body, and the spin surface, the contact surface and the avoidance groove are formed. On the flange.
3. The lock body according to claim 2, wherein the disk body is provided with a mounting hole, and the substrate is convexly provided with a card slot structure at a position corresponding to the mounting hole; the elastic member is a torsion spring. One leg portion of the elastic member abuts against an inner wall surface of the mounting hole, and the other leg portion abuts against a groove wall surface of the card slot structure.
4. The lock body according to claim 3, wherein the card slot structure comprises a side wall and a top wall, the side wall is perpendicular to the substrate, and the top wall is disposed at the side wall away from the At one end of the substrate, the elastic member is located between the top wall and the substrate.
5. The lock body according to claim 2, wherein the avoidance groove has a slope connected to the contact surface, and the contact first abuts the slope when the contact member rotates in the forward direction And then contact the contact surface.
6. The lock body according to claim 5, wherein the disk body is provided with a mounting hole, and the substrate is convexly provided with a card slot structure at a position corresponding to the mounting hole; the elastic member is a torsion spring. One leg portion of the elastic member abuts against an inner wall surface of the mounting hole, and the other leg portion abuts against a groove wall surface of the card slot structure.
7. The lock body according to claim 6, wherein the card slot structure comprises a side wall and a top wall, the side wall is perpendicular to the substrate, and the top wall is disposed at the side wall away from the At one end of the substrate, the elastic member is located between the top wall and the substrate.
8. The lock body according to claim 5, wherein the base plate is provided with a rotating shaft, and the disk body is provided with a shaft hole adapted to the rotating shaft.
9. The lock body according to claim 2, wherein the base plate is provided with a rotating shaft, and the disk body is provided with a shaft hole adapted to the rotating shaft.
10. The lock body according to claim 1, wherein the plurality of micro switches comprise a primary switch, a secondary switch and a monitoring switch, and when the lock is attached, the touch device is sequentially connected to the monitoring switch, the secondary switch and The contact of the primary switch abuts; when released, the contact member sequentially leaves the contacts of the primary switch, the secondary switch, and the monitoring switch.
11. The lock body according to claim 10, wherein an angle of the axis of the contact surface relative to the axis of rotation of the touch pad member is such that the contact surface of the monitoring switch is larger than the secondary The contact surface corresponding to the switch is larger than the contact surface corresponding to the secondary switch.
12. The lock body according to claim 11, wherein the body of the micro switch is provided with at least two pin holes, and the substrate is provided with a plurality of positioning posts adapted to the pin holes. The micro switch is sleeved on the positioning post and detachably fixed to the substrate.
13. The lock body according to claim 10, wherein the body of the micro switch is provided with at least two pin holes, and the substrate is provided with a plurality of positioning posts adapted to the pin holes. The micro switch is sleeved on the positioning post and detachably fixed to the substrate.
14. A microwave oven, comprising: a door hook and a lock body, the lock body comprising a substrate, a touch pad member, an elastic member and a plurality of micro switches; wherein

    The touchpad member is pivotally connected to the substrate, the micro switch is located at a periphery of the touchpad member, and the contact of the microswitch is directed toward the touchpad member;

    The peripheral surface of the touch pad member has a spin surface that cooperates with the external pressing member, and a plurality of contact surfaces that are engaged with the contact, and a contact between the two adjacent contact surfaces is formed to avoid the contact Avoidance slot;

    When the locking is performed, the external pressing member abuts against the rotating surface, the contact member rotates in the forward direction, and each contact surface abuts against the corresponding contact, triggering each micro switch;

    When released, the touch panel member reverses under the action of the elastic member, and each contact surface leaves the corresponding contact, and each micro switch is reset;

    The door hook is configured to cooperate with the lock body to implement interlock control.
15. The microwave oven according to claim 14, wherein the lock body is located in a furnace body of the microwave oven, and the door hook is disposed on the door body.
16. The microwave oven according to claim 14, wherein said microwave oven has a cylindrical shape as a whole.
17. The microwave oven according to claim 14, wherein the touch panel member comprises a plate-shaped disk body and a flange vertically disposed at an edge of the disk body, wherein the spin surface, the contact surface and the avoidance groove are formed in On the flange.
18. The lock body according to claim 17, wherein the disk body is provided with a mounting hole, and the substrate is convexly provided with a card slot structure at a position corresponding to the mounting hole; the elastic member is a torsion spring. One leg portion of the elastic member abuts against an inner wall surface of the mounting hole, and the other leg portion abuts against a groove wall surface of the card slot structure.
19. The microwave oven according to claim 14, wherein the plurality of micro switches comprise a primary switch, a secondary switch and a monitoring switch, and when the lock is attached, the touch device is sequentially connected to the monitoring switch, the secondary switch and the primary The contacts of the switch abut; when released, the contact member sequentially leaves the contacts of the primary switch, the secondary switch and the monitoring switch.
20. The microwave oven according to claim 19, wherein an axial center angle of each of the contact faces with respect to the axis of rotation of the touch pad member is such that a contact surface corresponding to the monitoring switch is larger than the secondary switch The corresponding contact surface is larger than the corresponding contact surface of the secondary switch.