Knob structure with PCB module

Abstract

According to the rotary knob structure with the PCB module, through the arrangement of the structure, during assembly, an LED display screen is firstly placed in the position, close to the opening in the upper end, of the interior of the rotary knob shell, then the LED display screen fixing piece is installed behind the LED display screen, and the fixing part covers the outer side of the LED display screen to fix the LED display screen; the knob fixing piece penetrates through the wire passing part to be clamped on the knob shell to abut against the LED display screen fixing piece, then the encoder is arranged on the outer side of the wire passing part in a sleeving mode to be clamped with the knob fixing piece, the lower end of the encoder can be used for fixing a PCB, and therefore close fit and stable fixing of all assemblies are achieved. The internal space of the knob shell is fully utilized, miniaturization and light weight of the knob are achieved, the requirement for compactness of modern electronic equipment is met, in addition, the pins of the LED display screen are led out of the wire passing part to be connected with the PCB, the wire passing part can protect the pins of the LED display screen, and wiring reliability is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of knob, especially a knob structure with PCB module. BACKGROUND

[0002] With the development of the intelligence and multifunction of electronic equipment, the knob as a common input control device is widely used in household appliances, industrial equipment, automotive electronics and other fields. The traditional knob structure usually only has simple rotation adjustment function, which cannot meet the needs of modern equipment for information display, interactive experience and compact structure. Especially in some high-end equipment, users not only need to operate through the knob, but also need to check the operation state or parameter information in real time, therefore, the knob structure integrated with display function gradually becomes a research hotspot. At present, there are some knob structures integrated with LED display screen on the market, but these structures usually have the following problems:

[0003] 1. Complex structure, difficult assembly: the connection mode between the LED display screen, the PCB module and the outer cover is complex, which leads to complicated assembly process and low production efficiency.

[0004] 2. Insufficient stability: due to the insufficient fixation mode between the components, the problems of looseness or poor contact are prone to occur, which affects the service life and reliability of the knob.

[0005] 3. Low space utilization: the internal space design is unreasonable, which leads to the limited layout of the PCB module and the LED display screen, and it is difficult to realize miniaturization and light weight.

[0006] 4. Lack of guiding and positioning mechanism: in the assembly process, there is lack of effective guiding and positioning structure between the components, which is prone to installation deviation and affects the overall performance. INVENTION CONTENTS

[0007] (I) Invention purpose

[0008] In order to overcome the above shortcomings, the purpose of the utility model is to provide a knob structure with PCB module, so as to solve the technical problems of difficult assembly, insufficient stability and low space utilization of the existing knob integrated with LED display screen.

[0009] (II) Technical scheme

[0010] In order to achieve the above purpose, the technical scheme provided by the present application is as follows:

[0011] The application discloses a knob structure with a PCB module, which comprises a knob shell with two open ends and a hollow structure, a first clamping groove arranged on the inner side wall of the knob shell, an LED display screen arranged in the knob shell and close to the upper end opening of the knob shell, an LED display screen fixing member arranged in the knob shell and behind the LED display screen, wherein one end of the LED display screen fixing member is formed with a fixing part which is matched with the shape of the LED display screen and covers the outer side of the LED display screen, the other end of the LED display screen fixing member is formed with a wire passing part through which the pin of the LED display screen passes, the middle part of the LED display screen fixing member is formed with an opening and the wire passing part and the fixing part abut each other, the outer edge of the LED display screen fixing member is formed with a first clamping block which is clamped with the first clamping groove, the gap is formed between the inner edge of the LED display screen fixing member and the wire passing part and a second clamping block is arranged, an encoder which is matched with the diameter of the wire passing part is arranged on the outer side of the wire passing part, the upper end of the encoder is inserted into the gap and the outer side wall of the encoder is arranged with a second clamping groove which is clamped with the second clamping block, and a PCB circuit board which is electrically connected with the lower end of the encoder, wherein the PCB circuit board is connected with the pin which passes through the wire passing part.

[0012] The application is assembled by first placing the LED display screen into the knob shell close to the upper end opening, then arranging the LED display screen fixing member behind the LED display screen, fixing the LED display screen by covering the outer side of the LED display screen with the fixing part of the LED display screen fixing member, clamping the LED display screen fixing member to the knob shell through the wire passing part, clamping the encoder with the knob fixing member on the outer side of the wire passing part, and electrically connecting the lower end of the encoder with the PCB circuit board, so that the close cooperation and stable fixation of the components are realized, the internal space of the knob shell is fully utilized, the miniaturization and light weight of the knob are realized, the compactness requirement of modern electronic equipment is met, and the pin of the LED display screen is connected with the PCB circuit board through the wire passing part, so that the pin of the LED display screen is protected by the wire passing part and the reliability of the wiring is ensured.

[0013] In some embodiments, a transparent panel arranged in the knob shell and in front of the LED display screen is further included.

[0014] The transparent panel is arranged to protect the display screen and enhance the visual effect.

[0015] In some embodiments, a first guide groove is arranged on the inner side wall of the knob shell, and a first guide block is arranged on the outer side wall of the knob fixing member and embedded in the first guide groove and slides along the first guide groove.

[0016] The first guide block is embedded in the first guide groove, so that the smoothness of the assembly of the knob shell and the knob fixing member and the accuracy of the mutual clamping are ensured.

[0017] In some embodiments, a second guide block is arranged on the outer wall of the wire passing part, and a second guide groove is arranged on the inner wall of the encoder, into which the second guide block is embedded and slides along the direction of the second guide groove;

[0018] The second guide block is embedded into the second guide groove, which ensures the smoothness of the assembly of the encoder and the LED display screen fixing part and the accuracy of mutual engagement.

[0019] In some embodiments, the knob shell comprises an outer cover made of metal and an inner core made of plastic, which is sleeved in the inner part of the outer cover and has a diameter matching that of the outer cover.

[0020] The knob shell is made of metal and plastic, which ensures the structural strength and appearance texture of the knob shell and is suitable for various high-end electronic devices. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a structural schematic view of the knob structure with a PCB module of the utility model;

[0022] Figure 2 is a sectional view of the knob structure with a PCB module of the utility model;

[0023] Figure 3 is an exploded view of the knob structure with a PCB module of the utility model;

[0024] Figure 4 is a structural schematic view of the knob shell in the knob structure with a PCB module of the utility model;

[0025] Figure 5 is a structural schematic view of the LED display screen fixing part in the knob structure with a PCB module of the utility model;

[0026] Figure 6 is a structural schematic view of the knob fixing part in the knob structure with a PCB module of the utility model;

[0027] Figure 7 is a structural schematic view of the knob structure with a PCB module of the utility model after the encoder and the PCB circuit board are disassembled.

[0028] REFERENCE SIGNS:

[0029] 1, knob shell; 101, outer cover; 102, inner core; 1021, first clamping groove; 1022, first guide groove; 2, transparent panel; 3, LED display screen; 4, LED display screen fixing part; 401, fixed part; 402, wire passing part; 403, second guide block; 5, knob fixing part; 501, first clamping block; 502, second clamping block; 503, first guide block; 6, encoder; 601, second guide groove; 602, second clamping groove; 7, PCB circuit board. DETAILED DESCRIPTION

[0030] To make the purpose, technical scheme and advantages of the utility model clearer and more clearly, the utility model is further described in detail below in combination with specific embodiments and with reference to the drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0031] The utility model provides a knob structure with PCB module, include: two ends open and present hollow structure's knob shell 1, the first clamping groove 1021 is arranged on the inner side wall, the LED display screen 3 of setting in the knob shell 1 inside near the upper end opening of knob shell 1, the LED display screen fixing part 4 that sets up in the knob shell 1 inside and is located after the LED display screen 3, its one end corresponding LED display screen 3 forms with the fixed part 401 of LED display screen 3 shape matches and covers and sets up in the outer side of LED display screen 3 for the fixed LED display screen 3, the other end forms the wire passing part 402 that the diameter of fixed part 401 is less than the lead of LED display screen 3 passes through, the knob fixing part 5 that the middle part is opened and passes through wire passing part 402 and fixed part 401 each other abuts, the clearance is formed between the inner edge of knob fixing part 5 and wire passing part 402 and is provided with second clamping block 502, the outer edge forms the first clamping block 501 that is mutually clamped with the first clamping groove 1021, the encoder 6 of the diameter matching of wire passing part 402 is set up in wire passing part 402 outer side, the upper end is inserted into the clearance and is provided with second clamping groove 602 on the side wall and mutually clamped with second clamping block 502, is provided with the fifth clamping structure on the end of wire passing part 402, still include: setting in the PCB circuit board 7 that wire passing part 402 end and fifth clamping structure each other connects, and the lead that passes through wire passing part 402 is connected each other.

[0032] Specifically, the knob shell 1 comprises: an outer cover 101 and an inner core 102 sleeved in the inner cover 101, the outer cover 101 is made of metal material, and the inner core 102 is made of plastic material. Specifically, when assembling, the plastic inner core 102 needs to be sleeved into the metal outer cover 101, and the diameters of the two are matched.

[0033] Specifically, the transparent panel 2 is installed in front of the LED display screen 3 and is fixed to the inner wall of the rotary knob shell 1 by buckling or adhesion.

[0034] Specifically, during assembly, the transparent panel 2 is first assembled into the rotary knob shell 1, then the LED display screen 3 is assembled into the rotary knob shell 1, then the LED display screen fixing part 4 is assembled, the fixing part 401 is arranged outside the LED display screen 3, then the rotary knob fixing part 5 is inserted through the wire passing part 402 of the LED display screen fixing part 4, the first clamping block 501 of the rotary knob fixing part 5 is clamped into the first clamping groove 1021 of the rotary knob shell 1, the upper end of the rotary knob fixing part 5 abuts against the LED display screen fixing part 4, then the encoder 6 is sleeved outside the wire passing part 402, the upper end of the encoder 6 is inserted into the gap between the rotary knob fixing part 5 and the wire passing part 402, the second clamping block 502 of the rotary knob fixing part 5 is clamped into the second clamping groove 602 of the encoder 6, specifically, the first clamping block 501 and the second clamping block 502 of the rotary knob fixing part 5 are elastic and abut against the inner wall of the rotary knob shell 1 and the outer wall of the encoder 6 respectively to apply a transverse force for clamping, specifically, the PCB circuit board 7 is pre-connected with the lower end of the encoder 6 and can rotate relative to the lower end of the encoder 6, the rotary knob structure is installed on the equipment, when it is necessary to change the gear, the rotary knob shell 1 is rotated, the rotary knob fixing part 5 can drive the encoder 6 to rotate by 360 degrees, the gear signal is transmitted to the PCB circuit board 7, and the LED display screen 3 is stationary.

[0035] Preferably, the first guide groove 1022 is arranged on the inner wall of the rotary knob shell 1, and the first guide block 503 is arranged on the outer wall of the rotary knob fixing part 5 and is embedded into the first guide groove 1022 and slides along the first guide groove 1022.

[0036] Preferably, the second guide block 403 is arranged on the outer wall of the wire passing part 402, and the second guide groove 601 is arranged on the inner wall of the encoder 6 and is embedded into the second guide groove 601 and slides along the second guide groove 601.

[0037] By arranging the guide groove and the guide block, the guide groove and the guide block are aligned before the clamping block is clamped into the clamping groove, then the corresponding components are moved to be clamped, so that the directionality and the accuracy of assembly can be ensured.

[0038] Specifically, after the encoder 6 and the PCB circuit board 7 are assembled to the wire passing part 402, the pin of the LED display screen 3 is arranged at the hole position of the wiring end of the PCB circuit board 7, and the assembly personnel can weld the pin of the LED display screen 3 with the PCB circuit board 7 and trim the excess length of the pin.

[0039] It should be understood that the above specific embodiments of the present application are only used for illustrative or explanatory purposes of the principles of the present application, and do not constitute a limitation on the present application. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present application shall be included in the protection scope of the present application. In addition, the appended claims of the present application are intended to cover all changes and modifications falling within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A knob structure with a PCB module, characterized in that, include: A knob housing (1) with open ends and a hollow structure has a first slot (1021) on its inner sidewall. An LED display screen (3) is disposed inside the knob housing (1) near the upper opening of the knob housing (1). An LED display screen fixing member (4) is disposed inside the knob housing (1) and located behind the LED display screen (3). One end of the fixing member (4) corresponding to the LED display screen (3) forms a fixing part (401) that matches the shape of the LED display screen (3) and covers the outside of the LED display screen (3). The other end forms a wire guide part (402) with a diameter smaller than the fixing part (401) for the pins of the LED display screen (3) to pass through. An opening is formed in the middle and the wire guide part (402) passes through. A knob fixing member (5) abuts against the fixing part (401). The outer edge of the knob fixing member (5) forms a first locking block (501) that engages with the first locking slot (1021). The inner edge is provided with a second locking block (502) and forms a gap with the wire passing part (402). An encoder (6) is sleeved on the outside of the wire passing part (402) and matches the diameter of the wire passing part (402). The upper end is inserted into the gap and a second locking slot (602) is opened on the outer side wall that engages with the second locking block (502). A PCB circuit board is electrically connected to the lower end of the encoder (6). The pins of the LED display screen (3) that pass through the wire passing part (402) are electrically connected to the PCB circuit board.

2. The knob structure with a PCB module according to claim 1, characterized in that, Also includes: A transparent panel (2) is disposed inside the knob housing (1) and in front of the LED display screen (3).

3. The knob structure with a PCB module according to claim 1, characterized in that, The inner wall of the knob housing (1) is provided with a first guide groove (1022), and the outer wall of the knob fixing member (5) is provided with a first guide block (503) that is embedded in the first guide groove (1022) and slides along the first guide groove (1022).

4. The knob structure with a PCB module according to claim 3, characterized in that, A second guide block (403) is provided on the outer wall of the wire guide part (402), and a second guide groove (601) is provided on the inner wall of the encoder (6) for the second guide block (403) to be embedded.

5. The knob structure with a PCB module according to any one of claims 1-4, characterized in that, The knob housing (1) includes: an outer cover (101) made of metal and an inner core (102) fitted inside the outer cover (101) with a diameter matching the outer cover (101), the inner core (102) being made of plastic.

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