Automatic clamping car wireless charging bracket

Abstract

The present invention discloses an automatically clamping vehicle-mounted wireless charging bracket, comprising a bracket body, an installation area formed on the bracket body and on which electronic products are installed, a clamping mechanism installed on the bracket body and clamping the electronic products in the installation area, and a processing unit, wherein a wireless charging coil for charging the electronic products and a charging circuit for controlling the charging of the wireless charging coil are arranged in the installation area, the wireless charging coil detects the electronic products to generate an induction signal, the processing unit controls the clamping mechanism to clamp to a pre-clamping position and wait for a preset time when the signal strength of the induction signal is greater than a first preset value, and controls the clamping mechanism to clamp the electronic products when the preset time is reached. The vehicle-mounted wireless charging bracket of the present invention is easy to operate, is not prone to misoperation, and enables the electronic products to be accurately placed and stably clamped.

Description

Technical Field

[0001] The invention relates to an electronic product charging device, and in particular to a vehicle-mounted wireless charging bracket which is reliable in operation and convenient in use. Background Art

[0002] With more and more in-car wireless chargers and the diversification of electronic product clamping methods, how to use them quickly and easily has become a rigid demand of consumers, making it easier for consumers to charge electronic products.

[0003] In the prior art, a vehicle-mounted charging bracket generally includes a bracket body, an installation area formed on the bracket body and on which electronic products are installed, and a clamping mechanism movably installed on the bracket body and clamping the electronic products in the installation area. The clamping mechanism has the following control modes:

[0004] 1. Manually control the action of the clamping mechanism for clamping electronic products. This method cannot achieve automatic control and is inconvenient to operate.

[0005] 2. Referring to Chinese patent CN201811014456, a proximity sensor is set in the installation area. After the proximity sensor detects an obstacle, the clamping mechanism is automatically controlled. Although this method can achieve automatic control, it often causes misoperation when human hands or other obstacles pass by. At this time, manual control requires manual operation of the manual switch, which is inconvenient.

[0006] 3. Referring to Chinese patent CN201820565238, the clamping mechanism is automatically clamped by pressing the sensor after the electronic product is installed. This method must be activated after the electronic product is placed, the clamping action is slow, and the period between the electronic product being placed and being fully clamped is prone to the problem of the electronic product falling due to external impact and shaking.

[0007] To this end, patent CN201921228614 discloses a wireless charging bracket, which sets a wireless charging coil for charging electronic products in the installation area, detects the electronic products by detecting the signal strength sensed by the wireless charging coil, and controls the action of the clamping mechanism to clamp the electronic products.

[0008] However, although this type of method will not cause misoperation, since electronic products are often equipped with items such as electronic product covers, part of the induced object on the electronic product is isolated, so the comparison threshold of the signal strength is generally set to be relatively small. At this time, if the induced object of the electronic product is easy to be sensed, it is easy for the clamping mechanism to be activated when the electronic product is close to the wireless charging bracket but not installed to the corresponding position of the installation area, so that the electronic product is not placed stably, affecting subsequent use, and even the clamping action occurs before the electronic product enters the installation area. If the comparison threshold of the signal strength is set to be relatively large, it is easy for the clamping mechanism to still not operate when the electronic product has reached the corresponding position of the installation area, affecting normal use.

[0009] Therefore, there is an urgent need for a vehicle-mounted wireless charging bracket that can solve the above problems. Summary of the invention

[0010] The purpose of the present invention is to provide an automatically clamped vehicle-mounted wireless charging bracket which is easy to operate, not prone to misoperation, and enables accurate placement of electronic products and stable clamping.

[0011] In order to achieve the above-mentioned objectives, the present invention discloses an automatically clamping vehicle-mounted wireless charging bracket, comprising a bracket body, an installation area formed on the bracket body and on which electronic products are installed, a clamping mechanism installed on the bracket body and clamping the electronic products in the installation area, and a processing unit, wherein the installation area is provided with a wireless charging coil for charging the electronic products and a charging circuit for controlling the charging of the wireless charging coil, the wireless charging coil detects the electronic products to generate an induction signal, and the processing unit controls the clamping mechanism to clamp to a pre-clamping position and wait for a preset time when the signal strength of the induction signal is greater than a first preset value, and controls the clamping mechanism to clamp the electronic product when the preset time is reached.

[0012] Compared with the prior art, the in-vehicle wireless charging bracket of the present invention is provided with a pre-clamping action before being fully clamped, so that when a person starts to place an electronic product and the electronic product has not completely reached the designated position, the electronic product can still be adjusted in a small range, and the electronic product is clamped again after a period of pre-clamping to ensure that the electronic product is placed in the correct position during clamping, so that the clamping is stable during the operation of the vehicle, and the electronic product will not fall or sway. On the other hand, the present invention can set the value of the first preset value to be relatively low, and perform a pre-clamping action when the signal strength is detected to be greater than the first preset value, that is, to prevent the in-vehicle wireless charging bracket from performing a clamping error operation when the electronic product is not placed properly due to excessive sensitivity of the induction, and also to prevent the in-vehicle electronic product bracket from being unable to automatically clamp due to the excessive slowness of the electronic product shell or the induction part, so that the operation is stable and convenient. On the other hand, by comparing the signal strength with the first preset value, the pre-clamping action is performed when the electronic product is detected, and the response is timely and sensitive. In the pre-clamping state, the electronic product can be prevented from falling out, which is suitable for placing electronic products in emergency situations.

[0013] Preferably, the processing unit records the clamping position of the clamping mechanism after clamping the electronic product, and adjusts the value of the pre-clamping position according to the clamping position, so that the pre-clamping position is wider than the clamping position by a preset value. This solution enables the present invention to automatically adjust the value of the pre-clamping position according to the personalized width of the electronic product, so that the activity space of the electronic product in the pre-clamping state is maintained within a preset range, which can have a certain position adjustment space, and will not cause erroneous swinging, tilting or even falling due to excessive activity space, and can also make the clamping mechanism at this time play a good guiding role.

[0014] Specifically, the vehicle-mounted wireless charging bracket also includes a reset button, and operating the reset button can adjust the pre-clamping position to a factory preset value.

[0015] Preferably, after the clamping mechanism clamps the electronic product, the processing unit also determines the charging distance between the electronic product and the wireless charging coil according to the signal strength of the induction signal, and controls the charging circuit action according to the charging distance to adjust the charging power of the wireless charging coil. The greater the charging distance, the greater the charging power. This allows the charged coil on the electronic product to be effectively charged even if it is interfered with by other materials such as the electronic product shell, without reducing the charging speed, so that the present invention can automatically clamp and charge electronic products in harsh environments or aging.

[0016] Preferably, the vehicle-mounted wireless charging bracket further includes an in-place detection unit, which detects whether the electronic product has reached the preset position of the installation area, and generates an in-place signal if so, and the processing unit controls the clamping mechanism to clamp the electronic product according to the in-place signal after the signal strength is greater than the first preset value. This solution allows the electronic product to be clamped in time when it is quickly placed at the preset position of the installation area within a preset time, and the electronic product is clamped again when the signal strength is greater than the first preset value and the in-place signal is received, to prevent misoperation.

[0017] Specifically, the in-position detection unit is a contact switch or a non-contact sensor installed below the installation area or on a supporting foot below the installation area. The non-contact sensor includes an infrared sensor, an acoustic wave sensor, and the like.

[0018] Preferably, the bracket body is provided with a floating platform for carrying electronic products in front of the wireless charging coil, and the in-place detection unit is installed on the floating platform and the bracket body bracket, and detects whether the electronic product is placed on the floating platform. This solution allows the electronic product to be clamped in time when it is quickly placed at a preset position in the installation area within a preset time, and the electronic product is clamped again when the signal strength is greater than a first preset value and an in-place signal is received, thereby preventing misoperation.

[0019] Specifically, the bracket body is provided with a magnetic member at a position corresponding to the floating platform to absorb the electronic product. The magnetic member can assist in guiding and positioning the electronic product, prevent the electronic product from deviating, and enable the electronic product to reach the correct position of the installation area as soon as possible.

[0020] Specifically, the second in-position detection unit is a contact switch or a pressure sensing element.

[0021] Preferably, the processing unit also determines whether the electronic product is approaching based on the sensing signal, and when the electronic product is approaching and the signal strength is greater than a first preset value, controls the clamping mechanism to clamp to a pre-clamping position and wait for a preset time, and controls the clamping mechanism to clamp the electronic product when the preset time is reached.

[0022] Preferably, the processing unit also controls the clamping mechanism to open to the initial position when the signal strength of the sensing signal is less than a second preset value, the second preset value is less than the first preset value, and the initial position is wider than the pre-clamping position, so as to prevent the clamping mechanism from closing when the electronic product is not clamped due to other misoperations, and can also automatically open to the initial position when the electronic product is placed and immediately pulled out, so as to facilitate the next placement. It can be used for people to directly take out the electronic product when they place the electronic product on the charging stand and find that some data has not been operated or change their mind, without operating the action button to open the clamping mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the vehicle-mounted wireless charging bracket in the first embodiment of the present invention.

[0024] Figure 2 1 is a structural block diagram of a vehicle-mounted wireless charging bracket in a first embodiment of the present invention.

[0025] Figure 3 It is a flow chart of automatic clamping control performed by the processing unit in the first embodiment of the present invention.

[0026] Figure 4a 4 is a flow chart of automatic clamping control performed by a processing unit in the second embodiment of the present invention.

[0027] Figure 4b 4 is a structural block diagram of a vehicle-mounted wireless charging bracket in a second embodiment of the present invention.

[0028] Figure 5 2 is a schematic diagram of the structure of the vehicle-mounted wireless charging bracket in the second embodiment of the present invention.

[0029] Figure 6 1 is a schematic diagram of the structure of a vehicle-mounted wireless charging bracket in a third embodiment of the present invention.

[0030] Figure 7 4 is a schematic diagram of the structure of the vehicle-mounted wireless charging bracket in the fourth embodiment of the present invention. DETAILED DESCRIPTION

[0031] In order to explain the technical content, structural features, achieved objectives and effects of the present invention in detail, the following is a detailed description in conjunction with the implementation methods and the accompanying drawings.

[0032] refer to Figure 1 and Figure 2 The present invention discloses an automatically clamping vehicle-mounted wireless charging bracket 100, comprising a bracket body 10, an installation area 11 formed on the bracket body 10 and for installing electronic products, a clamping mechanism 20 installed on the bracket body 10 and clamping the electronic products in the installation area 11, and a processing unit 30. The installation area 11 is provided with a wireless charging coil 41 for charging the electronic products and a charging circuit 42 for controlling the charging of the wireless charging coil 41. The wireless charging coil 41 can detect the electronic products to generate an induction signal, and can power the induction coil of the electronic products under the drive of the charging circuit 41.

[0033] refer to Figure 3, the processing unit 30 performs the following steps in the automatic clamping mode: (S11) comparing the signal strength of the sensing signal with a first preset value, when the signal strength of the sensing signal is greater than the first preset value, (S12) controlling the clamping mechanism 20 to move to clamp to the pre-clamping position, (S13) timing and waiting for a preset time; (S14) when the preset time is reached, (S15) controlling the clamping mechanism 20 to clamp the electronic product. The preset time is a time determined by the technician according to the needs and the speed of the clamping mechanism 20, such as 2s, 1s, etc.

[0034] Preferably, the processing unit 30 further determines whether the electronic product is approaching according to the sensing signal, and executes step ( S12 ) when the electronic product is approaching and the signal strength is greater than a first preset value.

[0035] In one embodiment, the processing unit 30 determines whether the electronic product is close to the sensor signal, and if so, executes step (S11) to start determining whether the signal strength of the sensor signal is greater than a first preset value. In another embodiment, the processing unit 30 determines whether the electronic product is close to the sensor signal, determines whether the signal strength of the sensor signal is greater than a first preset value, and executes step (S12) when the electronic product is close to the sensor signal and the signal strength is greater than the first preset value, and controls the clamping mechanism 20 to move to clamp to the pre-clamping position.

[0036] The clamping mechanism 20 includes a driving motor, a transmission mechanism, and two clamping blocks movably mounted on both sides of the bracket body 10. The driving motor drives the two clamping blocks to move relative to each other through the transmission mechanism to clamp the electronic product. The specific shapes of the two clamping blocks are not limited to those shown in the figure. The structure and shape of the paper clamping assembly 20 are well known to those skilled in the art and will not be described in detail here. The specific steps and control process of the processing unit 30 controlling the clamping mechanism 20 to clamp the electronic product are also referred to in the art and will not be described in detail here.

[0037] The wireless charging coil 41 can sense the wireless induction coil charged on the electronic product to determine whether the electronic product is close, or can sense the magnetic induction element such as the patch attached to the back of the electronic product to determine whether the electronic product is close. The electronic product is a portable electronic product such as a mobile phone or an iPad.

[0038] Since different electronic products have different widths, in this embodiment, in order to ensure that the activity space of the electronic product remains within a preset range when it is pre-clamped, the processing unit 30 records the clamping position of the clamping mechanism 20 after clamping the electronic product, and adjusts the value of the pre-clamping position according to the clamping position, so that the pre-clamping position is wider than the clamping position by a preset value. In this embodiment, the pre-clamping position is 4mm wider than the clamping position (electronic product width). Of course, this value can be selected according to actual needs and is not limited to 4mm. 2mm-8mm is preferred. The pre-clamping position is wider than the clamping position. In this embodiment, the pre-clamping position is a variable value determined according to the clamping position. Of course, the pre-clamping position can also be an adjustable value that can be adjusted according to customer needs, and can be adjusted by an adjustment knob set on the bracket body 10, or it can be a fixed value.

[0039] refer to Figure 1 The vehicle-mounted wireless charging bracket 100 further includes a reset button 12 , and operating the reset button 12 can adjust the pre-clamping position to a factory preset value.

[0040] Among them, the vehicle-mounted wireless charging bracket 100 is provided with an action switch 13, and the operation of the action switch 13 can generate an opening command, and the processing unit 30 controls the clamping mechanism 20 to reset and open to the initial position according to the opening command. Of course, the vehicle-mounted wireless charging bracket 100 also has a manual-automatic switching switch, and the manual clamping mode and the automatic clamping mode can be manually selected by operating the manual-automatic switching switch. In the manual clamping mode, the operation of the action switch 13 can switch to generate an opening command and a clamping command, and the clamping mechanism 20 is controlled to reset and open to the initial position according to the action command, and the clamping mechanism 20 is controlled to move to clamp the electronic product according to the clamping command.

[0041] Preferably, after the clamping mechanism 20 clamps the electronic product, the processing unit 30 also determines the charging distance between the electronic product and the wireless charging coil 41 according to the signal strength of the induction signal, and controls the charging circuit action according to the charging distance to adjust the charging power of the wireless charging coil 41. The greater the charging distance, the greater the charging power. This allows the charged coil on the electronic product to be effectively charged even if it is interfered by other materials such as the electronic product shell, and the charging speed will not be reduced, so that the present invention can automatically clamp and charge electronic products in harsh environments or aging.

[0042] The better, reference Figure 3In the automatic clamping mode, the processing unit 30 further performs the following steps: comparing the signal strength of the sensing signal with a second preset value, and when the signal strength of the sensing signal is less than the second preset value, controlling the clamping mechanism 20 to open to the initial position, the second preset value is less than the first preset value, and the initial position is wider than the pre-clamping position, to prevent the clamping mechanism from closing when the electronic product is not clamped due to other misoperations. The initial position is the position where the clamping mechanism 20 is fully opened, which is convenient for electronic products to be taken in and out.

[0043] refer to Figure 4a and Figure 4b ,as well as Figure 5 , which is the second embodiment of the present invention, based on the first embodiment, the vehicle-mounted wireless charging bracket 100 also includes an in-place detection unit 31. In the automatic clamping mode, the in-place detection unit 31 executes step (S21) to detect whether the electronic product has reached the preset position of the installation area 11. If so, it generates an in-place signal (S22) and transmits it to the processing unit 30. The processing unit 30 also executes the following steps: after step (S11), it receives the in-place signal and executes (S14). Among them, the processing unit 30 can execute step (S14) after reaching the preset time or receiving the in-place signal.

[0044] refer to Figure 5 The in-place detection unit 31 is installed below the installation area 11 and detects the electronic product. The processing unit 30 controls the clamping mechanism 20 to clamp the electronic product according to the in-place signal after the signal strength is greater than the first preset value.

[0045] refer to Figure 5 The in-place detection unit 31 is an infrared sensor installed below the installation area 11.

[0046] refer to Figure 6 Different from the second embodiment, in the third embodiment, the in-position detection unit 31b may also be a contact switch installed below the installation area 11. Different from the above embodiment, the in-position detection unit 31 may also be a contact switch installed on the supporting foot 14 below the installation area 11. In this case, the supporting foot 14 is elastically installed below the bracket body 10, and the contact switch is installed between the supporting foot 14 and the bracket body 10. When the supporting foot 14 is deformed while supporting the electronic product, the contact switch is triggered to output an in-position signal. After being triggered, the contact switch operates to generate an in-position signal and transmits it to the processing unit 30.

[0047] refer to Figure 7Different from the above embodiments, in the fourth embodiment of the present invention, the bracket body 10a is equipped with a floating platform 15 for carrying electronic products in front of the wireless charging coil 41, and the floating platform 15 is provided with an in-place detection unit (not shown in the figure) for detecting whether the electronic product is placed on the floating platform 15. The in-place detection unit generates an in-place signal after detecting that the electronic product is placed on the floating platform 15, and the processing unit 30 controls the clamping mechanism 20 to clamp the electronic product according to the in-place signal after the signal strength is greater than the first preset value.

[0048] The bracket body 10a is provided with a magnetic member 16 at a position corresponding to the floating platform 15 to absorb the electronic product. The magnetic member 16 is a ring-shaped member. The in-position detection unit is a contact switch or a pressure sensing member.

[0049] The above disclosure is only the preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.

Claims

1. An automatically clamped vehicle-mounted wireless charging bracket, comprising a bracket body, a mounting area formed on the bracket body and mounting an electronic product, and a clamping mechanism mounted on the bracket body and clamping the electronic product in the mounting area, wherein a wireless charging coil for charging the electronic product and a charging circuit for controlling the charging of the wireless charging coil are arranged in the mounting area, characterized in that: It also includes a processing unit, the wireless charging coil detects the electronic product to generate an induction signal, the processing unit determines whether the electronic product is close according to the induction signal, when the electronic product is close and the signal strength of the induction signal is greater than a first preset value, it is detected that the electronic product begins to be placed, the clamping mechanism is controlled to move to clamp to a pre-clamping position, when a preset time is reached, the clamping mechanism is controlled to clamp the electronic product, when the signal strength of the induction signal is less than a second preset value, the clamping mechanism is controlled to open to an initial position to facilitate the placement of the electronic product, the second preset value is less than the first preset value, and the initial position is wider than the pre-clamping position.

2. The vehicle-mounted wireless charging bracket according to claim 1, characterized in that: The processing unit records the clamping position of the clamping mechanism after clamping the electronic product, and adjusts the value of the pre-clamping position according to the clamping position, so that the pre-clamping position is wider than the clamping position by a preset value.

3. The vehicle-mounted wireless charging bracket according to claim 2, characterized in that: It also includes a reset button, which is operated to adjust the pre-clamping position to a factory preset value.

4. The vehicle-mounted wireless charging bracket according to claim 1, characterized in that: After the clamping mechanism clamps the electronic product, the processing unit also determines the charging distance between the electronic product and the wireless charging coil based on the signal strength of the induction signal, and controls the operation of the charging circuit based on the charging distance to adjust the charging power of the wireless charging coil. The greater the charging distance, the greater the charging power.

5. The vehicle-mounted wireless charging bracket according to claim 1, characterized in that: It also includes an in-place detection unit, which detects whether the electronic product reaches a preset position in the installation area. If so, an in-place signal is generated. The processing unit controls the clamping mechanism to clamp the electronic product according to the in-place signal after the signal strength is greater than the first preset value.

6. The vehicle-mounted wireless charging bracket according to claim 5, characterized in that: The in-position detection unit is a contact switch or a non-contact sensor installed below the installation area or on a supporting foot below the installation area.

7. The vehicle-mounted wireless charging bracket according to claim 5, characterized in that: The bracket body is provided with a floating platform for carrying electronic products in front of the wireless charging coil. The in-place detection unit is installed on the floating platform and the bracket body bracket, and detects whether the electronic product is placed on the floating platform.

8. The vehicle-mounted wireless charging bracket according to claim 7, characterized in that: The bracket body is provided with a magnetic part at a position corresponding to the floating platform to absorb the electronic product.

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