Knob switch

Abstract

The utility model discloses a knob switch, which comprises a shell, a knob piece, a gear ring, a guide pin and a guide contact piece, a plurality of gear contacts are circumferentially arranged on the gear ring, and a first signal contact extends out of the gear ring; the guide pin is provided with a second signal contact; the first signal contact and the second signal contact penetrate out of the shell, and the guide contact piece is connected with the gear ring and the guide connection pin so that the first signal contact and the second signal contact can be conducted. The shell is provided with a cavity, and the gear ring and the guide connection pin are installed in the cavity. The guide contact piece is provided with a first guide contact and a second guide contact, the knob piece is pivoted to the shell, the guide contact piece is connected with the knob piece so as to drive the guide contact piece to rotate through the knob piece, the rotating guide contact piece is movably connected with each gear contact of the gear ring through the first guide contact, and the second guide contact is kept connected with the guide pin. The device has the advantages of simple structure, compact matching, reasonable design and the like; therefore, the device is a product with excellent technical and economical performance.

Description

[Technical field]

[0001] The utility model mainly relates to a knob switch. [Background technology]

[0002] Whether it is 3C electronic products, communication devices or home appliances, they are often equipped with knob switches. Rotary switches are generally used to switch the power supply of the circuit and adjust the high and low power supply to adjust the speed and strength of the electrical operation, such as the speed of the electric fan, the cooling strength of the air conditioner, the volume of the audio, the brightness of the light, and the signal strength of the radio.

[0003] The existing knob switch is basically provided with multiple gears, and each gear extends out of the housing where it is located, and each gear is independently connected to a wire. Such a structure is relatively complicated, and the number of wirings is large and difficult to arrange and organize; therefore, it is necessary to improve the knob switch, simplify the gear structure, and facilitate wiring arrangement. [Contents of the utility model]

[0004] In order to solve at least one of the above problems, the utility model proposes a new structural solution. The knob switch adopts the following technical solution:

[0005] A knob switch comprises a housing, a knob member, a shift ring, a guide pin and a contact member;

[0006] The gear ring is provided with a plurality of gear contacts in a circumferential arrangement, and the gear ring extends out a first signal contact;

[0007] The conductive pin has a second signal contact; the first signal contact and the second signal contact extend out of the housing, and the conductive contact is respectively connected to the shift ring and the conductive pin to make the first signal contact and the second signal contact conductive;

[0008] The shell has a cavity, and the gear ring and the guide pin are installed in the cavity; the guide contact piece is provided with a first guide contact point and a second guide contact point, the knob piece is pivotally connected to the shell, the guide contact piece is connected to the knob piece to drive the guide contact piece to rotate through the knob piece, the rotating guide contact piece is movably connected to each gear contact point of the gear ring through the first guide contact point, and the second guide contact point remains connected to the guide pin.

[0009] Preferably, the housing comprises a bottom shell and a cover, the cavity is provided in the bottom shell, the cavity has an open end, and the cover is installed at the open end to close the cavity.

[0010] Preferably, the bottom shell is provided with a first through hole and a second through hole, the shift ring extends out of the bottom shell from the first through hole, and the guide pin extends out of the bottom shell from the second through hole.

[0011] Preferably, the knob member comprises a fitting portion and a shaft portion, the fitting portion is provided with a clamping cavity, and the contact guide is embedded in the clamping cavity so as to rotate together with the knob member.

[0012] Preferably, the contact member comprises a contact section and a bending section, the first contact point and the second contact point are both arranged in the contact section, and the first contact point and the second contact point are arranged at intervals, and the contact member is embedded in the card cavity through the bending section.

[0013] Preferably, the sealing cover is provided with a through hole, and the shaft portion passes through the through hole and out of the sealing cover.

[0014] Compared with the background technology, the utility model has the following beneficial effects:

[0015] In order to reduce the number of position pins of the knob switch, the utility model proposes a knob switch structure, which includes a housing, a knob, a position ring, a guide pin and a contact member, wherein the position ring is provided with a plurality of position contacts, and the position ring is provided with only one pin, which changes the problem of the traditional position pins being too many and makes the overall structure more concise. It has the advantages of simple structure, compact fit, and reasonable design; therefore, it is a product with superior performance in both technical and economic aspects.

Brief Description of the Drawings

[0016] Figure 1 A schematic diagram of a knob switch in a preferred embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the first disassembled state of the knob switch in the preferred embodiment provided by the utility model;

[0018] Figure 3 This is a schematic diagram of the second disassembled state of the knob switch in the preferred embodiment provided by the utility model;

[0019] Figure 4 A schematic diagram of a bottom shell in a preferred embodiment of the present utility model;

[0020] Figure 5 This is a schematic diagram of a knob in a preferred embodiment of the present invention. [Specific implementation method]

[0021] The embodiments of the present invention are described in detail below. The embodiments are shown in the accompanying drawings, wherein the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions.

[0022] In the present invention, unless otherwise specified and limited, the terms "assembly", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] The following is a further description of the specific implementation of the utility model in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the utility model are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the utility model, but cannot be understood as limiting the utility model.

[0024] The preferred embodiment provided by the utility model is as follows: Figure 1 to Figure 5 As shown, a knob switch comprises a housing 1, a knob member 2, a shift ring 3, a guide pin 4 and a guide contact member 5;

[0025] The gear ring 3 is a ring body, and a plurality of gear contacts 31 are arranged in a circumferential pattern on the gear ring 3. A first signal contact 32 extends from the gear ring 3. The gear contact 31 is arranged on the inner side of the ring body. The first signal contact 32 extends perpendicularly to the gear ring 3. A clamping block 33 is also extended from the gear ring 3. A clamping position 13 is correspondingly arranged on the bottom shell 11. The clamping block 33 is embedded in the clamping position 13 to fix the gear ring 3 on the bottom shell 11.

[0026] The conductive pin 4 has a second signal contact 41; the first signal contact 32 and the second signal contact 41 extend out of the housing 1, and the conductive contact 5 is respectively connected to the shift ring 3 and the conductive pin 4 to make the first signal contact 32 and the second signal contact 41 conductive;

[0027] The shell 1 has a cavity 16, and the gear ring 3 and the guide pin 4 are installed in the cavity 16; the guide contact 5 is provided with a first guide contact point 51 and a second guide contact point 52, and the knob member 2 is pivotally connected to the shell 1, and the guide contact member 5 is connected to the knob member 2 to drive the guide contact member 5 to rotate through the knob member 2, and the rotating guide contact member 5 is movably connected to each gear contact point 31 of the gear ring 3 through the first guide contact point 51, and the second guide contact point 52 remains connected to the guide pin 4.

[0028] The housing 1 includes a bottom shell 11 and a cover 12. A cavity 16 is provided in the bottom shell 11. The cavity 16 has an open end. The cover 12 is installed at the open end to close the cavity 16. Each component is installed into the cavity 16 from the open end. The bottom shell 11 is provided with a first through hole 14 and a second through hole 15. The shift ring 3 extends out of the bottom shell 11 from the first through hole 14, and the guide pin 4 extends out of the bottom shell 11 from the second through hole 15.

[0029] The knob 2 is an integrated structure, and includes a fitting part 21 and a shaft part 22. The shaft part 22 is perpendicular to the fitting part 21 so that the shaft part 22 passes out of the housing 1. The cover 12 is provided with a through hole 17, and the shaft part 22 passes out of the cover 12 through the through hole 17. The fitting part 21 is provided with a card cavity 23, and the contact guide 5 is embedded in the card cavity 23 so that it rotates together with the knob 2.

[0030] The contact member 5 is a metal strip, and the contact member 5 includes a contact segment 53 and a bending segment 54. The bending segment 54 is bent relative to the contact segment 53 so that the bending segment 54 and the contact segment 53 are relatively offset. The bending segment 54 is higher than the contact segment 53 so that the bending segment 54 can be embedded in the card cavity 23. The first guide contact 51 and the second guide contact 52 are both arranged in the contact segment 53, and the first guide contact 51 and the second guide contact 52 are spaced apart so as to connect the gear ring 3 and the guide pin 4. The contact member 5 is embedded in the card cavity 23 through the bending segment 54.

[0031] The existing knob switch is basically provided with multiple gears, and each gear extends out of the housing where it is located, and each gear is independently connected to a wire. Such a structure is relatively complicated, and the number of wirings is large and difficult to arrange and organize.

[0032] In order to reduce the gear pins of the knob switch, the utility model proposes a knob switch structure, which includes a shell 1, a knob member 2, a gear ring 3, a guide pin 4 and a guide contact member 5, wherein the gear ring 3 is provided with a plurality of gear contacts 31, and the gear ring 3 is only provided with one pin (a first signal contact 32), which changes the problem of the traditional gear pins being too many and makes the overall structure more concise. When in use, the knob switch is externally connected to a circuit chip, and the distances between the gear contacts of the ring and the first signal contact are different. Different levels are preset according to the gear contacts of the gear ring. The input and output ends of the circuit chip are respectively connected to the first signal contact 32 and the second signal contact 41 passing through the bottom shell 11, and the gear ring 3 and the guide pin 4 are connected through the guide contact member 5; the guide pin 4, the shaft portion 22, and the second guide contact 52 are located on the same straight line. When the knob member 2 rotates, the second guide contact 52 remains connected to the guide pin 4, and as the guide contact member 5 rotates, the first guide contact 51 is respectively connected to each gear contact 31, and cooperates with the circuit chip to determine the corresponding gear to achieve the gear adjustment function.

[0033] In the description of the specification, the description with reference to the terms "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model, and the schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0034] Through the description of the above structure and principle, technicians in the relevant technical field should understand that the present invention is not limited to the above-mentioned specific implementation methods. Improvements and substitutions based on the present invention using the known technology in the field all fall within the protection scope of the present invention and should be defined by the claims.

Claims

1. A knob switch, characterized in that: It includes a housing, a knob, a shift ring, a guide pin and a contact member; The gear ring is provided with a plurality of gear contacts in a circumferential arrangement, and the gear ring extends out a first signal contact; The conductive pin has a second signal contact; the first signal contact and the second signal contact extend out of the housing, and the conductive contact is respectively connected to the shift ring and the conductive pin to make the first signal contact and the second signal contact conductive; The shell has a cavity, and the gear ring and the guide pin are installed in the cavity; the guide contact piece is provided with a first guide contact point and a second guide contact point, the knob piece is pivotally connected to the shell, the guide contact piece is connected to the knob piece to drive the guide contact piece to rotate through the knob piece, the rotating guide contact piece is movably connected to each gear contact point of the gear ring through the first guide contact point, and the second guide contact point remains connected to the guide pin.

2. A knob switch according to claim 1, characterized in that: The housing comprises a bottom shell and a cover, a cavity is arranged in the bottom shell, the cavity has an open end, and the cover is installed at the open end to close the cavity.

3. A knob switch according to claim 2, characterized in that: The bottom shell is provided with a first through hole and a second through hole. The shift ring extends out of the bottom shell from the first through hole, and the guide pin extends out of the bottom shell from the second through hole.

4. A rotary switch according to claim 2, characterized in that: The knob part comprises a fitting part and a shaft part. The fitting part is provided with a clamping cavity, and the contact guide is embedded in the clamping cavity so as to rotate together with the knob part.

5. A knob switch according to claim 4, characterized in that: The contact member comprises a contact point section and a bending section. The first contact point and the second contact point are both arranged in the contact point section. The first contact point and the second contact point are arranged at intervals. The contact member is embedded in the card cavity through the bending section.

6. The rotary switch according to claim 4, characterized in that: The sealing cover is provided with a through hole, and the shaft rod part passes through the through hole and goes out of the sealing cover.

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