Remote control and assembly method

Abstract

This invention provides a remote control that improves the rigidity and connection strength of the front shell through a support frame and button base. The support frame is made of plastic, and the button base is made of rubber. The flat portion of the button base fits against the front surface of the support frame. Multiple abutting parts and multiple pressing parts of the button base protrude from the two surfaces of the flat portion and are correspondingly arranged. The support frame acts as a skeleton and support for the flat portion, pressing parts, and abutting parts, improving the rigidity and strength of the front shell, thereby reducing the gaps between the pressing parts and between the button blocks, resulting in a smaller length and width of the front shell, achieving further miniaturization. The button base is supported by the support frame and formed into the support frame, thus ensuring the forming position and shape of the button base. The pressing parts are spaced apart, and under the support of the support frame, each pressing part has sufficient tension, thereby improving the service life of each pressing part under repeated pressing.

Description

Technical Field

[0001] This invention relates to the field of remote controls, and particularly to a remote control and its assembly method. Background Technology

[0002] A remote control is a wireless transmitter primarily used for long-distance control of display devices. The remote control transmits signals for the display device to decode, and then adjusts the display device's operating status accordingly.

[0003] In related technologies, the keys are detachably assembled onto the front shell, which has multiple keycap through holes for keycaps to pass through. These keycap through holes are spaced apart along the length and width of the front shell. To ensure the strength of the portion of the front shell corresponding to two adjacent keycap through holes, the distance between two adjacent keycap through holes is greater than or equal to 3.7 mm. The sidewalls of the keycap through holes are provided with protrusions that support the flanges of the keycaps. This results in a large length and width for the front shell, making it impossible to further reduce its size. Summary of the Invention

[0004] The purpose of this invention is to provide a remote control that reduces the length and width of the front cover.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] According to one aspect of the present invention, a display device is provided, comprising: a rear shell having a receiving cavity therein, and an opening communicating with the receiving cavity on its front side; a front shell being received within the receiving cavity, including a support frame and a button base; the support frame being made of plastic and fixedly mounted on the rear shell; the support frame having a plurality of through holes arranged at intervals; the button base being made of rubber and including a flat plate portion, a plurality of pressing portions and a plurality of abutting portions respectively protruding from two surfaces of the flat plate portion; the flat plate portion conforming to the front surface of the support frame and covering each of the through holes; each of the abutting portions correspondingly extending into each of the through holes; each of the pressing portions correspondingly disposed to each of the abutting portions, and the pressing portions being spaced apart; and a plurality of button blocks, spaced apart from each other, all mounted at the opening; each of the button blocks correspondingly conforming to each pressing portion of the button base.

[0007] Optionally, the front shell is received in the receiving cavity through the opening and is detachably fastened to the rear shell by the supporting frame.

[0008] Optionally, the support frame is made of ABS or PC material; the button base is made of TPE or TPU material.

[0009] Optionally, the gap between each of the key blocks is 0.10 mm to 0.30 mm.

[0010] Optionally, the outer periphery of the abutting portion and the outer periphery of the pressing portion both have a gap with the inner periphery of the corresponding through hole.

[0011] Optionally, the abutting portion has a contact portion protruding on the side opposite to the flat plate portion; the outer periphery of the abutting portion extends outward beyond the outer periphery of the contact portion.

[0012] Optionally, the rear end of the button block is spaced apart from the flat plate; the rear end of the button block is provided with a groove for mounting the pressing part, and the inner wall of the groove is glued to the front surface of the pressing part; the front end of the button block is provided with a pressing slope, and the angle between the pressing slope and the rear end of the button block is an acute angle.

[0013] Optionally, each of the button blocks is embedded in the opening of the rear shell, so that the rear end of each of the button blocks is blocked by the rear shell.

[0014] Optionally, the support frame and the button base are manufactured using an integral injection molding process.

[0015] According to one aspect of the present invention, the present invention provides a method for assembling a remote control, utilizing the aforementioned remote control, circuit board, and battery cover, comprising: adhesively bonding each of the button blocks to the front surface of each pressing portion of the front shell; mounting the circuit board to and abutting against the support frame of the front shell; fastening the front shell to the rear shell; and covering the battery compartment of the rear shell with the battery cover.

[0016] As can be seen from the above technical solutions, the embodiments of the present invention have at least the following advantages and positive effects:

[0017] In the remote control of this invention, the rigidity and connection strength of the front shell are improved by using a support frame and a button base. The support frame is made of plastic, and the button base is made of rubber. The flat portion of the button base is attached to the front surface of the support frame. Multiple abutting portions and multiple pressing portions of the button base protrude from the two surfaces of the flat portion and are correspondingly arranged. The support frame acts as a skeleton and support for the flat portion, pressing portions, and abutting portions, improving the rigidity and connection strength of the button base, thereby improving the rigidity and strength of the front shell. This reduces the gaps between the pressing portions and between the button blocks, resulting in a smaller length and width of the front shell, achieving further miniaturization. The button base is supported by the support frame and formed on the support frame, thus ensuring the forming position and shape of the button base. The pressing portions are spaced apart, and under the support of the support frame, each pressing portion has sufficient tension, thereby improving the service life of each pressing portion under repeated pressing.

[0018] Furthermore, the support frame and the contact part are on the same side, while the pressing part is on the opposite side, which facilitates reducing the gap between each pressing part, and thus reducing the gap between each button block. The flat part fits against the front surface of the support frame and covers each through hole to prevent external dust from entering and accumulating in the through holes, ensuring the cleanliness of the remote control's interior. Attached Figure Description

[0019] Figure 1 This is an exploded view of the remote control 100 of the present invention.

[0020] Figure 2 This is a side view of the remote control 100 of the present invention.

[0021] Figure 3 This is a front view of the remote control 100 of the present invention.

[0022] Figure 4 along Figure 3 A sectional view along direction A.

[0023] Figure 5 yes Figure 4 A magnified view of a portion of point C.

[0024] Figure 6 along Figure 3 A partial schematic diagram of the cross-section along direction B.

[0025] Figure 7 yes Figure 6 A magnified view of a portion of point D.

[0026] The annotations in the attached figures are explained as follows:

[0027] 100. Remote control;

[0028] 1. Rear cover; 11. Receiving cavity; 12. Opening; 13. Support plate; 14. Battery compartment;

[0029] 2. Front shell; 21. Support frame; 211. Through hole; 22. Button base; 221. Flat plate; 222. Pressing part; 2221. Gap; 223. Abutting part; 2231. Contact part;

[0030] 3. Button block; 31. Groove; 32. Pressing bevel;

[0031] 4. Circuit board; 41. Dome switch; 42. Electronic unit;

[0032] 5. Battery cover. Detailed Implementation

[0033] Typical embodiments embodying the features and advantages of the present invention will be described in detail in the following description. It should be understood that the present invention can have various variations in different embodiments without departing from the scope of the present invention, and the descriptions and illustrations herein are for illustrative purposes only and not intended to limit the present invention.

[0034] This invention provides a remote control. The remote control is a wireless transmitting device primarily used for long-distance control of display devices. The remote control transmits signals for the display device to decode, and accordingly adjusts the display device's operating status.

[0035] In related technologies, the keys are detachably assembled onto the front shell, which has multiple keycap through holes for keycaps to pass through. These keycap through holes are spaced apart along the length and width of the front shell. To ensure the strength of the portion of the front shell corresponding to two adjacent keycap through holes, the distance between two adjacent keycap through holes is greater than or equal to 3.7 mm. The sidewalls of the keycap through holes are provided with protrusions that support the flanges of the keycaps. This results in a large length and width for the front shell, making it impossible to further reduce its size.

[0036] Figure 1 This is an exploded view of the remote control 100 of the present invention. Figure 2 This is a side view of the remote control 100 of the present invention. Figure 3 This is a front view of the remote control 100 of the present invention.

[0037] See Figures 1 to 3 As shown, the remote control 100 provided by the present invention is roughly rectangular and mainly includes a rear shell 1, a front shell 2, multiple button blocks 3, a circuit board 4, and a battery cover 5.

[0038] The rear shell 1 is a hollow cavity with a certain wall thickness. The rear shell 1 is provided with a receiving cavity 11, which is used to receive the front shell 2 and the circuit board 4, so that the front shell 2 and the circuit board 4 are contained in the receiving cavity 11 and protected by the outer layer of the rear shell 1.

[0039] The front side of the rear shell 1 has an opening 12 that communicates with the receiving cavity 11, which allows the front shell 2, multiple button blocks 3, and circuit board 4 to be installed.

[0040] The inner wall of the rear shell 1 is provided with two support plates 13. The two support plates 13 are symmetrically arranged to support the circuit board 4 together, avoid the electronic components of the circuit board 4, and improve the stability of the circuit board 4.

[0041] The rear side of the rear cover 1 has a battery compartment 14 for installing batteries, which is covered by a battery cover 5 to provide outer protection for the batteries.

[0042] Specifically, the rear shell 1 is a one-piece molded structure.

[0043] Circuit board 4, as the control component of remote controller 100, is supported by two carrier plates 13.

[0044] The surface of circuit board 4 facing opening 12 is electrically connected to multiple dome switches 41, which are pressed to trigger circuit board 4. The surface of circuit board 4 facing away from opening 12 is provided with an electronic unit 42, located between two support plates 13. Specifically, the electronic unit 42 may be a transmitter, diode, etc.

[0045] Figure 4 along Figure 3 A sectional view along direction A. Figure 5 yes Figure 4 A magnified view of a portion of point C.

[0046] See Figure 4 and Figure 5 As shown, the front shell 2 is fixedly installed in the rear shell 1 and is protected by the outer layer of the rear shell 1. Specifically, the front shell 2 is received in the receiving cavity 11 through the opening 12.

[0047] The front shell 2 includes an integrally injection-molded support frame 21 and a button base 22. The integral injection molding of the support frame 21 and the button base 22 improves the rigidity and connection strength of the front shell 2.

[0048] Optionally, the support frame 21 and the button base 22 are integrally molded using two-color injection molding. The support frame 21 is made of plastic, specifically ABS or PC, which is not limited here. The button base 22 is made of rubber, specifically TPE or TPU, which is not limited here.

[0049] The support frame 21 serves as the main support component of the front shell 2, acting as a frame and support for the button base 22, thereby improving the rigidity and connection strength of the button base 22 and thus increasing the rigidity and strength of the front shell 2.

[0050] The support frame 21 is detachably fastened to the rear shell 1, so that the support frame 21 is fixedly installed on the rear shell 1. The two sides of the support frame 21 are in contact with the inner wall of the rear shell 1.

[0051] The support frame 21 may optionally be in the form of a continuous plate. The support frame 21 has a plurality of through holes 211 arranged at intervals, which may optionally be rectangular and adapted to the button base 22.

[0052] The button base 22 is connected to and supported by the support frame 21. The button base 22 is supported by and formed on the support frame 21, thereby ensuring the forming position and shape of the button base 22.

[0053] The button base 22 includes a flat plate portion 221, a plurality of pressing portions 222 and a plurality of abutting portions 223 respectively protruding from the two surfaces of the flat plate portion 221. The pressing portions 222 and abutting portions 223 are arranged corresponding to the through holes 211 and are injection molded with the support frame 21 as a reference, thereby improving the positioning accuracy and shape accuracy of the pressing portions 222 and abutting portions 223.

[0054] The flat plate 221 may be flat and fits tightly against the front surface of the support frame 21, covering each through hole 211 to prevent external dust from entering and accumulating in the through holes 211, thus ensuring the cleanliness of the inside of the remote control 100.

[0055] Optionally, the width of the flat plate 221 is smaller than the width of the support frame 21.

[0056] Multiple abutting portions 223 are located on the side surface of the flat plate portion 221 facing the support frame 21 and are arranged corresponding to multiple through holes 211. They can press against the hot plate 41 under the action of external force. Therefore, the abutting portions 223 and the support frame 21 are on the same side, and the space of the through holes 211 is fully utilized.

[0057] Each abutment 223 extends into each through hole 211 and has a gap with the inner wall of the through hole 211, so that the abutment 223 can move in the through hole 211 along the thickness direction of the remote controller 100 under the action of external force.

[0058] There is a gap between the outer periphery of the abutment portion 223 and the inner periphery of the corresponding through hole 211. Specifically, the abutment portion 223 and the corresponding through hole 211 are in clearance fit.

[0059] Furthermore, the abutting part 223 has a protruding contact part 2231 on the side facing away from the flat plate part 221. The contact part 2231 is arranged corresponding to the middle of the dome 41 and is used to press the dome 41. The contact part 2231 achieves precise pressing of the dome 41 and improves the pressing efficiency between the abutting part 223 and the dome 41.

[0060] The outer periphery of the abutting portion 223 extends outward beyond the outer periphery of the contact portion 2231. Specifically, the outer diameter of the abutting portion 223 is larger than the outer diameter of the contact portion 2231.

[0061] Multiple pressing parts 222 are located on the side surface of the flat plate 221 facing away from the abutting parts 223, and are arranged corresponding to the abutting parts 223. The outer periphery of each abutting part 223 has a gap with the inner periphery of the corresponding through hole 211; specifically, the abutting part 223 and the through hole 211 are in clearance fit. Therefore, under the support of the support frame 21, the pressing parts 222 are ensured to have sufficient tension, thereby improving the service life of each pressing part 222 under repeated pressing.

[0062] The pressing part 222, the flat part 221, and the abutting part 223 are all made of rubber and are elastic. Therefore, when the pressing part 222 is pressed, it can drive the abutting part 223 to press down, thereby triggering the corresponding dome switch 41. In addition, the pressing part 222 has sufficient rigidity and hardness under the support of the supporting frame 21 to withstand external pressing pressure.

[0063] Each pressing part 222 is spaced apart along the length and width of the remote control 100, so there is a gap 2221 between each pressing part 222. This gap 2221 corresponds to the arrangement of the support frame 21, which facilitates the pressing of the button block 3 and ensures that each pressing part 222 has sufficient tension, thereby improving the service life of each pressing part 222 under repeated pressing.

[0064] Specifically, the outer periphery of the pressing part 222 extends outward beyond the outer periphery of the abutting part 223. Specifically, the outer diameter of the pressing part 222 is larger than the outer diameter of the abutting part 223.

[0065] In the front shell 2, the support frame 21 acts as a skeleton and support for the flat plate portion 221, the pressing portion 222, and the abutting portion 223, improving the rigidity and connection strength of the button base 22, thereby increasing the rigidity and strength of the front shell 2. This reduces the gap 2221 between each pressing portion 222 and the gap between each button block 3, resulting in a smaller length and width for the front shell 2, achieving further miniaturization. The button base 22 is supported by the support frame 21 and formed on the support frame 21, thus ensuring the forming position and shape of the button base 22. The pressing portions 222 are spaced apart, and under the support of the support frame 21, each pressing portion 222 has sufficient tension, thereby improving the service life of each pressing portion 222 under repeated pressing.

[0066] Figure 6 along Figure 3 A partial schematic diagram of the cross-section along direction B. Figure 7 yes Figure 6 A magnified view of a portion of point D.

[0067] See Figure 6 and Figure 7 As shown, button block 3 is mounted on pressing part 222 and has control symbols corresponding to remote control 100. Specifically, button block 3 is made of hard plastic, specifically ABS, PC, or other materials.

[0068] The rear end of the button block 3 is spaced apart from the flat plate 221, so that the rear end of the button block 3 has space to be pressed down, making it easier for the button block 3 to be pressed down toward the flat plate 221.

[0069] The rear end of the button block 3 is provided with a groove 31 for mounting the pressing part 222. The inner wall of the groove 31 is glued to the front surface of the pressing part 222, so that the button block 3 is mounted at the opening 12 of the rear shell 1.

[0070] The button block 3 is glued to the front surface of the pressing part 222. Given sufficient strength in the front shell 2, it does not need to engage with the rear shell 1, thereby effectively reducing the gap between the button blocks 3. Furthermore, given sufficient strength in the front shell 2, the gap between the button blocks 3 can be further reduced, resulting in a smaller length and width for the front shell 2.

[0071] Specifically, multiple button blocks 3 are spaced apart from each other, and each button block 3 is correspondingly attached to each pressing part 222 of the button base 22, with a gap of 0.10 mm to 0.30 mm between each button block 3.

[0072] Optionally, the outer periphery of the button block 3 extends beyond the corresponding pressing part 222 in both the length and width directions of the remote control 100, and faces the gap 2221 between each pressing part 222, thereby improving the pressing smoothness of the button block 3.

[0073] The front end of the button block 3 is provided with a pressing bevel 32, and the angle between the pressing bevel 32 and the rear end of the button block 3 is an acute angle. The pressing bevel 32 facilitates the user to press the button block 3. Specifically, the pressing bevel 32 faces the top of the remote control 100.

[0074] Furthermore, each button block 3 is embedded in the opening 12 of the rear shell 1, so that the rear end of each button block 3 is covered by the rear shell 1, thus preventing the gap between the rear end of the button block 3 and the front end of the rear shell 1 from being exposed on the appearance of the remote control 100, thereby improving the appearance of the remote control 100.

[0075] Specifically, the rear end of button block 3 is lower than the front end of the back cover 1 in the thickness direction of remote control 100.

[0076] The assembly method for this remote control 100 is roughly as follows:

[0077] 1. Adhere each button block 3 to the front surface of each pressing part 222 of the front shell 2 accordingly;

[0078] 2. Install the circuit board 4 onto the support frame 21 of the front shell 2;

[0079] 3. Attach the front shell 2 to the rear shell 1;

[0080] 4. Place the battery cover 5 onto the battery compartment 14 of the rear cover 1.

[0081] As can be seen from the above technical solutions, the embodiments of the present invention have at least the following advantages and positive effects:

[0082] In the remote control 100 of this embodiment, the rigidity and connection strength of the front shell 2 are improved by integral injection molding of the support frame 21 and the button base 22. The support frame 21 is made of plastic, and the button base 22 is made of rubber. The flat plate portion 221 of the button base 22 is attached to the front surface of the support frame 21. Multiple abutment portions 223 and multiple pressing portions 222 of the button base 22 are respectively protruding from the two surfaces of the flat plate portion 221 and are correspondingly arranged. The support frame 21 acts as a skeleton and support for the flat plate portion 221, the pressing portions 222 and the abutment portions 223, improving the rigidity and connection strength of the button base 22, thereby improving the rigidity and strength of the front shell 2. This reduces the gap 2221 between each pressing portion 222 and the gap between each button block 3, making the length and width of the front shell 2 smaller, achieving further reduction. The button base 22 is supported by the support frame 21 and formed on the support frame 21, thereby ensuring the forming position and shape of the button base 22. The pressing parts 222 are spaced apart and supported by the support frame 21, thereby ensuring that each pressing part 222 has sufficient tension and thus improving the service life of each pressing part 222 under repeated pressing.

[0083] Furthermore, the support frame 21 is located on the same side as the contact portion 223 and on the opposite side of the pressing portion 222, which facilitates reducing the gap 2221 between each pressing portion 222, thereby reducing the gap between each button block 3. The flat portion 221 is attached to the front surface of the support frame 21 and covers each through hole 211 to prevent external dust from entering and accumulating in the through holes 211, ensuring the cleanliness of the inside of the remote control 100.

[0084] Although the invention has been described with reference to several typical embodiments, it should be understood that the terminology used is illustrative and exemplary, and not restrictive. Since the invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A remote control, characterized in that, include: The rear shell has a receiving cavity inside, and its front side has an opening communicating with the receiving cavity; A front shell, housed within a receiving cavity, includes a support frame and a button base. The support frame is made of plastic. The front shell is received within the receiving cavity through the opening and is detachably fastened to the rear shell by the support frame. The two sides of the support frame are abutted against the inner wall of the rear shell, and the support frame is fixedly installed on the rear shell. The support frame serves as a support component for the front shell, providing a framework and support for the button base. The support frame has multiple through holes arranged at intervals. The button base is made of rubber and includes a flat plate portion, multiple pressing portions and multiple abutting portions protruding from both surfaces of the flat plate portion. The flat plate portion is abutted against the front surface of the support frame and covers each of the through holes. Each abutting portion extends into each of the through holes. Each pressing portion corresponds to each abutting portion, and the pressing portions are spaced apart. Multiple button blocks, spaced apart from each other, are all installed at the opening; each button block is correspondingly attached to the pressing part of the button base; A circuit board is disposed on the side of the support frame facing away from the flat plate; a portion of the support frame near the edge of the opening is pressed onto the circuit board. The support frame is provided with a step near the edge of the opening; the edge of the flat plate is supported on the step, and the peripheral edge of the flat plate abuts against the step; In the width direction, the two outermost supporting frames are provided with receiving grooves on their opposing sides. In the height direction, the receiving grooves are located on the side of the supporting frame away from the step, and the receiving grooves are used to accommodate one side of the circuit board.

2. The remote control as described in claim 1, characterized in that, The supporting frame is made of ABS or PC material; the button base is made of TPE or TPU material.

3. The remote control as described in claim 1, characterized in that, The gap between each of the key blocks is 0.10 mm to 0.30 mm.

4. The remote control as described in any one of claims 1 to 3, characterized in that, Both the outer periphery of the abutting portion and the outer periphery of the pressing portion have gaps between them and the inner periphery of the corresponding through hole.

5. The remote control as described in any one of claims 1 to 3, characterized in that, The abutting part has a contact portion protruding on the side opposite to the flat plate part; The outer periphery of the abutting portion extends outward beyond the outer periphery of the contact portion.

6. The remote control as described in any one of claims 1 to 3, characterized in that, The rear end of the button block is spaced apart from the flat plate; the rear end of the button block is provided with a groove for mounting the pressing part, and the inner wall of the groove is glued to the front surface of the pressing part; The front end of the button block is provided with a pressing bevel, and the angle between the pressing bevel and the rear end of the button block is an acute angle.

7. The remote control as described in any one of claims 1 to 3, characterized in that, Each of the button blocks is embedded in the opening of the rear shell, so that the rear end of each button block is blocked by the rear shell.

8. The remote control as described in any one of claims 1 to 3, characterized in that, The supporting frame and the button base are manufactured using an integrated injection molding process.

9. A method for assembling a remote control, utilizing the remote control, circuit board, and battery cover as described in any one of claims 1 to 8, characterized in that, include: Each of the aforementioned button blocks is correspondingly glued to the front surface of each pressing part of the front shell; The circuit board is mounted and abutted against the support frame of the front shell; The front shell is fastened onto the rear shell; The battery cover is then placed over the battery compartment of the rear shell.

Images