CN212542252U - Switch with a switch body - Google Patents

Abstract

The utility model provides a switch. The switch includes: a switch housing; the swing rod assembly comprises a swing rod main body and an elastic piece, the swing rod main body is arranged in the switch shell in a swinging mode and comprises an accommodating cavity, and the elastic piece is arranged in the accommodating cavity; the marble pressure head component comprises a marble and a spherical pressure head, the marble is positioned between the elastic piece and the spherical pressure head, and the spherical pressure head is arranged in the accommodating cavity in a swinging manner relative to the marble; and the movable contact spring is connected with the spherical pressure head, and the spherical pressure head can drive the movable contact spring to swing under the driving action of the swing rod main body. The switch can reduce the swing angle of the key, so that the thickness is reduced.

Description

Switch with a switch body

Technical Field

The embodiment of the application relates to the field of power equipment, in particular to a switch.

Background

In the existing switches, especially the rocker switch (also called rocker switch), a spring is mostly arranged in the oscillating piece, and the spring presses the movable contact to make the movable contact with the fixed contact under force. The movable contact piece is driven to swing back and forth through the back and forth swing of the swing piece, so that the contact or the separation with the fixed contact is realized, and the on-off of the switch is realized. However, the spring is distorted after being compressed in the swinging process, so that the spring applies a horizontal acting force to the movable contact piece, the movable contact piece is not stably contacted with the fixed contact, the virtual connection between the movable contact piece and the fixed contact and the virtual position on the hand feeling of the key are caused, the swinging angle of the key and the swinging piece of the switch needs to be increased to avoid the problem, and the thickness of the switch is increased greatly.

SUMMERY OF THE UTILITY MODEL

In order to solve the above problem, embodiments of the present application provide a switch to at least partially solve the above problem.

According to a first aspect of embodiments of the present application, there is provided a switch, comprising: a switch housing; the swing rod assembly comprises a swing rod main body and an elastic piece, the swing rod main body is arranged in the switch shell in a swinging mode and comprises an accommodating cavity, and the elastic piece is arranged in the accommodating cavity; the marble pressure head component comprises a marble and a spherical pressure head, the marble is positioned between the elastic piece and the spherical pressure head, and the spherical pressure head is arranged in the accommodating cavity in a swinging manner relative to the marble; and the movable contact spring is connected with the spherical pressure head, and the spherical pressure head can drive the movable contact spring to swing under the driving action of the swing rod main body.

Optionally, the spherical pressure head is provided with a contact piece groove, and the movable contact piece at least partially extends into the contact piece groove and is in compression fit with the spherical pressure head.

Optionally, the spherical pressure head includes a pressure head main body and two clamping plates extending outwards along the pressure head main body, a certain interval is kept between the two clamping plates, and the movable contact piece at least partially extends between the two clamping plates and is abutted against the two clamping plates.

Optionally, the pressure head main body is provided with a main body groove, the main body groove is communicated with a gap formed by the two clamping plates to form a contact plate groove, a limiting protrusion is arranged on the movable contact plate, and the main body groove is matched with the limiting protrusion and limits the movement of the limiting protrusion in a direction perpendicular to the swinging plane of the swing rod assembly.

Optionally, the elastic element includes a spring, the pin tumbler includes a pin tumbler main body and a spring post, the spring post is fixedly disposed on the pin tumbler main body, a step surface is formed between the pin tumbler main body and the spring post, the spring is sleeved on the spring post, and one end of the spring abuts against the step surface.

Optionally, the end surface of the marble matched with the spherical pressure head is a plane.

Optionally, the end surface of the marble matched with the spherical pressure head is a cambered surface.

Optionally, a swing rod shaft is arranged on the swing rod main body, the swing rod shaft includes a shaft seat and a protrusion, a top surface of the protrusion is an arc surface, and the top surface of the protrusion is in contact with the switch shell, so that the swing rod main body swings relative to the switch shell.

Optionally, the switch further includes a conducting strip and a fixed contact, the movable contact includes a contact main body and a swing arm, the contact main body is connected with the spherical pressure head and is abutted against the conducting strip by the spherical pressure head, a first end of the swing arm is connected to the contact main body, a second end of the swing arm is provided with a movable contact matched with the fixed contact, and when the movable contact swings along with the spherical pressure head, the movable contact is in contact with or separated from the fixed contact.

Optionally, a first included angle is formed between the extending direction of the swing arm from the first end to the second end and the stretching direction of the elastic piece, and the value range of the first included angle is greater than or equal to 0 degree and smaller than 90 degrees.

The switch shell of the switch (such as a rocker-type switch) provided by the embodiment of the application is used for installing and protecting the rocker assembly, the marble pressure head assembly, the movable contact piece and the like. The swing rod main body of the swing rod component is used for installing an elastic piece, a marble pressure head component and the like and driving the elastic piece, the marble pressure head component and the like to swing. The elastic piece is used for applying a propping force to the marble and the spherical pressure head so as to enable the contact piece to be propped. The spherical pressure head can swing relative to the marble, so that when the elastic part is distorted and a force perpendicular to the stretching direction is applied to the marble, the distortion applied force of the elastic part can be eliminated through the relative swing between the spherical pressure head and the marble, the force perpendicular to the stretching direction is prevented from acting on the movable contact piece through the spherical pressure head, the accidental swing of the movable contact piece is avoided, the movable contact piece and the fixed contact of the switch are prevented from generating virtual connection and virtual positions on hand feeling during pressing, the swing angle of the swing rod component can be reduced, and the whole thickness of the switch is reduced.

Drawings

The drawings are only for purposes of illustrating and explaining the present application and are not to be construed as limiting the scope of the present application. Wherein the content of the first and second substances,

fig. 1 shows a schematic perspective view of a first viewing angle of a switch according to an embodiment of the present application;

fig. 2 shows a schematic longitudinal sectional perspective structure of a switch according to an embodiment of the present application;

FIG. 3 shows a partial enlarged view at I in FIG. 2;

FIG. 4 shows a perspective view of a switch with the switch housing removed according to an embodiment of the present application;

FIG. 5 shows a partial enlarged view at II in FIG. 4;

fig. 6 shows a schematic perspective view of a spherical indenter of a switch according to an embodiment of the present application;

fig. 7 illustrates a schematic view of a longitudinal cross-sectional perspective view of a spherical indenter of a switch according to an embodiment of the present application; and

fig. 8 shows a perspective view of a movable contact of a switch according to an embodiment of the present application.

Description of reference numerals:

10. a switch housing;

20. a swing rod main body;

211. a shaft seat;

212. a protrusion;

30. an elastic member;

41. marbles;

411. a marble body;

412. a spring post;

42. a spherical indenter;

421. a ram body;

421a, main body groove;

422. a clamping plate;

50. a movable contact spring;

51. a contact main body;

511. a limiting bulge;

52. swinging arms;

521. a moving contact;

61. a conductive sheet;

62. static contact;

71. a first lead-out terminal;

72. a second lead-out terminal; and

80. and (6) pressing a key.

Detailed Description

In order to more clearly understand the technical features, objects and effects of the embodiments of the present application, specific embodiments of the present application will be described with reference to the accompanying drawings.

Referring to fig. 1 to 8, the present application provides a switch, which includes a switch housing 10, a rocker assembly, a pin spring pressure head assembly and a movable contact 50, wherein the rocker assembly includes a rocker main body 20 and an elastic member 30, the rocker main body 20 is swingably disposed in the switch housing 10, the rocker main body 20 includes a receiving cavity, and the elastic member 30 is disposed in the receiving cavity; the marble pressure head component comprises a marble 41 and a spherical pressure head 42, the marble 41 is positioned between the elastic element 30 and the spherical pressure head 42, and the spherical pressure head 42 is arranged in the accommodating cavity in a swinging mode relative to the marble 41; the movable contact spring 50 is connected with the spherical pressure head 42, and the spherical pressure head can drive the movable contact spring 50 to swing under the driving action of the swing rod main body 20.

The switch may be, for example, a rocker switch. The switch housing 10 of the switch is used for mounting and protecting the swing rod assembly, the spring pressure head assembly, the movable contact 50 and the like. The swing rod main body 20 of the swing rod component is used for installing the elastic element 30, the marble pressure head component and the like and driving the elastic element to swing. The elastic member 30 is used to apply an abutting force to the pin 41 and the ball-shaped indenter 42 so as to make the movable contact piece 50 abutted. Because the spherical pressure head 42 can swing relative to the marble 41, when the elastic element 30 is distorted and applies a force vertical to the stretching direction to the marble 41, the distortion applied force of the elastic element 30 can be eliminated through the relative swing between the spherical pressure head 42 and the marble 41, so that the force vertical to the stretching direction is prevented from acting on the movable contact spring 50 through the spherical pressure head 42, the movable contact spring 50 is prevented from swinging accidentally, the movable contact spring and the static contact of the switch are prevented from generating virtual connection and virtual positions on hand feeling during pressing, the swinging stroke of the swing rod component can be reduced, and the whole thickness of the switch is reduced.

As shown in fig. 1 and 2, in the present embodiment, the thickness direction of the switch is the Z direction shown in fig. 1, the length direction of the switch is the X direction shown in fig. 1, and the width direction is the Y direction shown in fig. 1. Of course, the embodiment is merely exemplary, and is not limited thereto.

In the present embodiment, the switch case 10 includes an upper case and a lower case, which are detachably connected to each other. The upper shell is mainly used for installing the swing rod assembly and is connected with a fixture (such as a wall and the like). The lower case is fitted with the upper case to protect the swing link assembly and the movable contact 50, etc.

As shown in fig. 2 to 4, a first lead-out terminal 71 and at least one second lead-out terminal 72 are further provided in the lower case, wherein both the first lead-out terminal 71 and the second lead-out terminal 72 are used for connecting with lead-out wires. The first lead-out terminal 71 and the second lead-out terminal 72 are both provided on the lower case to be fixed by the lower case.

In this embodiment, the first leading terminal 71 is kept connected to the movable contact 50. For example, the conductive sheet 61 is fixedly connected to the first lead-out terminal 71, and at least a part of the conductive sheet 61 is fixedly disposed on the switch case 10. Since the movable contact piece 50 is pressed against the conductive piece 61 by the force applied by the elastic member 30 and is always in contact with the conductive piece 61, the movable contact piece 50 is always connected to the first leading-out terminal 71.

The second leading-out terminal 72 is connected with a fixed contact 62, and the fixed contact 62 is used for selectively contacting with the movable contact piece 50, so that the on-off control of the switch is realized. For example, in the present embodiment, the number of the second leading-out terminals 72 may be two, each second leading-out terminal 72 is provided with a fixed contact 62, and the two fixed contacts 62 are located on two sides of the movable contact 50 in a one-to-one correspondence along the length direction of the switch (i.e., the X direction shown in fig. 1), in other words, the movable contact 50 is located between the two fixed contacts 62. Thus, when the movable contact piece 50 swings along the length direction of the switch, the movable contact piece is contacted with one of the two fixed contacts 62, so that the on-off control of the switch is realized, and the position change of the movable contact piece 50 in the thickness direction of the switch (namely the stroke in the thickness direction) is small in the process, thereby being beneficial to reducing the thickness of the switch.

In this embodiment, in order to facilitate the user operation and make the switch integral and good, more beautiful, the switch may include the key 80, and the key 80 is connected on the swing rod assembly, so that the user can press the key 80 when operating the switch, so that the key 80 drives the swing rod assembly to swing, thereby driving the movable contact 50 to swing, and realizing the on-off control of the switch.

As shown in fig. 4, the swing link main body 20 of the swing link assembly includes a cross rod portion and a vertical rod portion, the cross rod portion is connected with the vertical rod portion, the cross rod portion is used for being matched with the key 80 to realize the installation and fixation of the key 80, and the key 80 can push the swing link main body 20 to swing. For example, the cross bar portion may be connected to the keys 80 by a snap fit. The stem portion is provided with a receiving cavity for receiving a resilient member, a pin 41, a spherical ram 42, and the like.

As shown in fig. 5, in order to ensure stable swinging, a swing rod shaft is disposed on the swing rod main body 20, the swing rod shaft includes a shaft seat 211 and a protrusion 212, a top surface of the protrusion 212 is an arc surface, and the top surface of the protrusion 212 contacts with the switch housing 10, so that the swing rod main body 20 swings relative to the switch housing 10.

As shown in fig. 4 and 5, shaft seats 211 are provided on both sides of the cross bar portion of the swing bar main body 20 in the Y direction, and protrusions 212 are provided on each shaft seat 211. The shape, material, etc. of the shaft seat 211 can be determined according to the needs, which is not limited in this embodiment.

The top surface of the protrusion 212 refers to the surface of the protrusion 212 away from the shaft seat 211. By providing the top surface of the protrusion 212 as a circular arc surface, a swing axis (a swing axis is perpendicular to a swing plane of the swing lever assembly) is formed at a position where the protrusion 212 contacts the switch case 10, so that the swing lever main body 20 can swing about the swing axis when either end of the cross bar portion of the swing lever main body 20 is pressed. The swing rod shaft with the structure is simple in structure and convenient to process, and the overall weight of the switch can be reduced.

As shown in fig. 2, the stem portion of the rocker body 20 is used for mounting the elastic member 30, the pin 41 and the ball ram 42. Wherein, the elastic member 30 includes a spring, which can effectively reduce the production cost. Of course, in other embodiments, the elastic member 30 may have other structures as long as it can provide the movable contact 50 with the abutting force for abutting against the conductive sheet 61.

In the present embodiment, the pin 41 is disposed between the elastic element 30 and the spherical pressing head 42, so as to eliminate the distortion of the elastic element 30 through the relative movement of the pin 41 and the spherical pressing head 42 when the elastic element 30 is distorted, and avoid the unstable contact between the movable contact piece 50 and the stationary contact 62 caused by the force generated by the distortion of the elastic element 30.

In addition, the arrangement of the pin 41 between the elastic member 30 and the spherical indenter 42 prevents the elastic member 30 from wearing the spherical indenter 42. When the elastic member 30 is a spring, the ball 41 can be arranged to avoid the problem that the ball 42 is embedded in the inner ring of the spring to prevent the ball 42 from swinging.

Alternatively, as shown in fig. 3, in order to better cooperate with a spring, the pin 41 includes a pin body 411 and a spring post 412, the spring post 412 is fixedly disposed on the pin body 411, a stepped surface is formed between the pin body 411 and the spring post 412, the spring is sleeved on the spring post 412, and one end of the spring abuts against the stepped surface. The spring body 411 is mainly used for matching with the spherical pressure head 42, and a stepped surface between the spring column 412 and the spring body 411 can limit the spring and also serve as a force application surface of the spring, so that the spring can apply a propping force to the movable contact piece 50 through the spring 41 and the spherical pressure head 42.

In order to ensure that the spherical pressure head 42 is connected with the marble 41 in a spherical amplitude manner, so that the relative motion of the marble 41 and the marble 41 is more stable and smooth, the matched end surface of the marble 41 and the spherical pressure head 42 is a plane. Or the end surface of the marble 41 matched with the spherical pressure head 42 is a cambered surface. This makes the spherical pressing head 42 and the marble 41 engage with each other, so that the spherical pressing head 42 can rotate smoothly.

In this embodiment, because the relative movement of the spherical pressure head 42 and the pin 41 can counteract the acting force generated by the distortion of the elastic element 30, a large gap does not need to be arranged between the spherical pressure head 42 and the movable contact piece 50 to prevent the acting force generated by the distortion of the elastic element 30 from being transmitted to the movable contact piece 50, so that the movable contact piece 50 can be tightly fitted with the spherical pressure head 42, and the spherical pressure head 42 only needs to swing a small angle to realize the contact or separation of the movable contact piece 50 and the fixed contact 62, and the swing angle of the key 80 is small, thereby reducing the thickness of the whole switch. Therefore, the problem that the thickness of the switch cannot be thinned due to the fact that a large virtual position exists between the movable contact spring and the pressure head and the swing angle of the key is too large due to the fact that a large gap exists between the movable contact spring and the pressure head is solved.

In one embodiment of the present invention, the spherical indenter 42 includes a contact recess into which the movable contact 50 extends at least partially and is press fit into the spherical indenter 42. Therefore, not only the reliable connection between the movable contact piece 50 and the spherical pressure head 42 is realized, but also the movable contact piece 50 is convenient to detach and install.

Optionally, the spherical ram 42 includes a ram body 421 and two holding plates 422 extending outwards along the ram body 421, a certain interval is maintained between the two holding plates 422, and the movable contact 50 at least partially extends between the two holding plates 422 and abuts against the two holding plates 422. The spherical pressure head 42 of this kind of structure processing is more convenient, and grip block 422 supports tightly with movable contact spring 50, can guarantee spherical pressure head and movable contact spring 50's area of contact to guarantee to drive movable contact spring 50 swing reliably, need not again with the diameter setting of spherical pressure head 42's pressure head main part 421 very big, help guaranteeing the frivolousization of switch.

In this embodiment, the pressing head main body 421 of the spherical pressing head 42 may be a complete sphere, or may be appropriately adjusted as needed, as long as the spherical pair fit between the pressing head main body 421 and the marble 41 is ensured.

Alternatively, as shown in fig. 6, the pressing head main body 421 is provided with a main body groove 421a, the main body groove 421a communicates with a gap formed by the two clamping plates 422 to constitute a contact plate groove, the movable contact 50 is provided with a limit protrusion 511, and the main body groove 421a cooperates with the limit protrusion 511 and limits the movement of the limit protrusion 511 in a direction perpendicular to the swing plane of the swing lever assembly. The main body groove 421a is formed in the pressure head main body 421, so that the pressure head main body 421 can limit the movable contact 50, prevent the movable contact from moving in a direction perpendicular to the swinging plane (i.e., in a direction parallel to the swinging axis), ensure that the movable contact 50 can be accurately attached to the fixed contact 62 during swinging, and avoid the movable contact 50 and the fixed contact 62 from being dislocated.

As shown in fig. 7, in the present embodiment, the movable contact 50 includes a contact main body 51 and a swing arm 52, the contact main body 51 is connected to the spherical pressing head 42 and is pressed against the conductive sheet 61 by the spherical pressing head 42, a first end of the swing arm 52 is connected to the contact main body 51, a second end of the swing arm 52 is provided with a movable contact 521 for cooperating with the stationary contact 62, and when the movable contact 50 swings with the spherical pressing head 42, the movable contact 521 is in contact with or separated from the stationary contact 62.

A first included angle is formed between the extending direction of the swing arm 52 from the first end to the second end and the stretching direction of the elastic element 30, and the value range of the first included angle is greater than or equal to 0 ° and smaller than 90 °, so that the static contact 62 is more flexible in arrangement position and better in adaptability.

When the switch is used, one end of the key 80 can be pressed, and the key 80 is connected with the swing rod assembly, so that when one end of the key 80 is pressed, one end, corresponding to the swing rod main body 20, of the swing rod assembly is synchronously pressed, the swing rod main body 20 swings around the swing rod shaft, the elastic piece 30, the marble 41 and the spherical pressure head 42 are driven to synchronously swing, and the swinging angle of the swing rod assembly is the same as the pressed angle of the key 80. Because the movable contact piece 50 is pressed against the conducting strip 61 by the elastic element 30, and the movable contact piece 50 is tightly matched with the spherical pressure head 42, when the spherical pressure head 42 swings, the movable contact piece 50 is driven to swing, so that the movable contact 521 on the swing arm 52 of the movable contact piece 50 is contacted with one of the two fixed contacts 62, and the on-off control of the switch is realized. In the process, because the movable contact piece 50 and the spherical pressure head 42 rotate synchronously, the movable contact piece 50 and the fixed contact 62 can be contacted or separated by swinging the key 80 at a small angle, and the thickness of the switch can be reduced by the small stroke of the key 80.

If the elastic element 30 is twisted during use, the spherical pressure head 42 can rotate relative to the pin 41, so that the reaction force caused by the twisting of the elastic element 30 is eliminated, the spherical pressure head 42 can be tightly matched with the movable contact piece 50, and the static contact 62 is stably contacted with the movable contact piece 50.

The switch of the embodiment has the following beneficial effects:

through the matching mode that the spherical pressure head and the marble can move relatively, the reverse acting force (even the acting force that the movable contact spring is separated from the static contact) caused by the distortion of the elastic piece is eliminated, the contact stability of the movable contact spring and the static contact is ensured, and the virtual position of the key can be eliminated; in addition, the button can drive the swing rod assembly and the movable contact spring to move at a smaller swing angle, so that the structural limitation of the existing switch is broken through, the overall thickness of the switch is reduced, and the switch is suitable for being installed on different building walls and non-wall fixtures, and the attractiveness is improved; the switch is simple in structure, convenient to assemble and high in reliability.

It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.

The above description is only an exemplary embodiment of the present disclosure, and is not intended to limit the scope of the present disclosure. Any person skilled in the art should be able to make equivalent changes, modifications and combinations without departing from the concept and principle of the embodiments of the present application.

Claims (10)

1. A switch, comprising:

a switch case (10);

the swing rod assembly comprises a swing rod main body (20) and an elastic piece (30), the swing rod main body (20) is arranged in the switch shell (10) in a swinging mode, the swing rod main body (20) comprises an accommodating cavity, and the elastic piece (30) is arranged in the accommodating cavity;

the pin pressing head assembly comprises a pin (41) and a spherical pressing head (42), the pin (41) is positioned between the elastic element (30) and the spherical pressing head (42), and the spherical pressing head (42) is arranged in the accommodating cavity in a swinging mode relative to the pin (41); and

the movable contact piece (50) is connected with the spherical pressure head (42), and the spherical pressure head (42) can drive the movable contact piece (50) to swing under the driving action of the swing rod main body (20).

2. A switch according to claim 1, wherein said spherical head (42) is provided with a contact recess, said movable contact (50) extending at least partially into said contact recess and being in press fit with said spherical head (42).

3. The switch of claim 2, wherein the spherical indenter (42) comprises an indenter body (421) and two holding plates (422) extending outward along the indenter body (421), the two holding plates (422) are spaced apart from each other, and the movable contact (50) at least partially extends between the two holding plates (422) and abuts against the two holding plates (422).

4. A switch according to claim 3, wherein said pressing head body (421) is provided with a body recess (421a), said body recess (421a) communicates with a gap formed by two said holding plates (422) to constitute said contact recess, said movable contact (50) is provided with a limit projection (511), said body recess (421a) is engaged with said limit projection (511) and limits the movement of said limit projection (511) in a direction perpendicular to the swing plane of said swing link assembly.

5. The switch of claim 1, wherein the elastic member (30) comprises a spring, the pin (41) comprises a pin body (411) and a spring post (412), the spring post (412) is fixedly disposed on the pin body (411), a step surface is formed between the pin body (411) and the spring post (412), the spring sleeve is disposed on the spring post (412), and one end of the spring abuts against the step surface.

6. A switch according to any one of claims 1 to 5, characterized in that the end face of the pin (41) that engages with the spherical head (42) is flat.

7. A switch according to any one of claims 1 to 5, characterized in that the end surface of the pin (41) that engages with the spherical head (42) is cambered.

8. The switch of claim 1, wherein the rocker body (20) is provided with a rocker shaft, the rocker shaft comprises a shaft seat (211) and a protrusion (212), a top surface of the protrusion (212) is a circular arc surface, and the top surface of the protrusion (212) is in contact with the switch housing (10) to enable the rocker body (20) to swing relative to the switch housing (10).

9. The switch of claim 1, further comprising a conductive plate (61) and a fixed contact (62), wherein the movable contact (50) comprises a contact main body (51) and a swing arm (52), the contact main body (51) is connected to the spherical ram (42) and is pressed against the conductive plate (61) by the spherical ram (42), a first end of the swing arm (52) is connected to the contact main body (51), a second end of the swing arm (52) is provided with a movable contact (521) for being matched with the fixed contact (62), and when the movable contact (50) swings along with the spherical ram (42), the movable contact (521) is in contact with or separated from the fixed contact (62).

10. The switch of claim 9, wherein a first angle is formed between the extending direction of the swing arm (52) from the first end to the second end and the extending direction of the elastic member (30), and the first angle is greater than or equal to 0 ° and less than 90 °.

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