TWI790625B - Fixed component and wireless charging device - Google Patents

Abstract

The invention discloses a fixed component and a wireless charging device. The fixed component is used to connect the two ends of the coil of the wireless charging coil assembly, and the coil can be electrically connected with the circuit board through the fixed component. The fixed component includes an insulating body, two fixing structures and two conductive parts. The insulating body is formed of a composition containing plastic materials and glass fibers; based on the total weight of the composition, the content of the glass fiber is between 20wt% and 40wt%, and the heat-resistant temperature of the insulating body is not less than 200°C. The insulating body includes two channels and two accommodating groove. The two conductive parts are arranged in the insulating body. Each end of the coil passes through the channel and is located in the accommodating groove, and is connected to the conductive parts through a welding body located in the accommodating groove. The insulating body is fixed to the circuit board through two clamping structures.

Description

Fixing member and wireless charging device

The present invention relates to a fixing member and a wireless charging device, in particular to a fixing member used to fix two ends of a coil of a wireless charging coil, and a wireless charging device including the fixing member, and the wireless charging device is a transmitting terminal (Tx).

The existing common manufacturing method of the wireless charging device as the transmitter (Tx) is mostly to manually solder the end of the coil to the circuit board, and there are many problems in this method. For example, it is difficult to control the welding quality by manual welding, and the welding quality will directly affect the signal transmission quality of the coil. In addition, manual welding will make it difficult to reduce production costs.

The invention discloses a fixing component and a wireless charging device, which are mainly used to solve the problem of difficulty in controlling the welding quality caused by welding the end of the wireless charging coil on the circuit board by manual methods.

One embodiment of the present invention discloses a fixing member, which is used to connect with both ends of at least one coil of a wireless charging coil assembly, and the coil can be electrically communicated with a circuit board through the fixing member, and the fixing member includes: a The insulating body, at least two fastening structures and at least two conductive parts. The insulating body is formed from a composition comprising a plastic material and a glass fiber; wherein, based on the total weight of the composition, the content of the glass fiber is between 20wt% and 40wt%, and a heat-resistant temperature of the insulating body is not less than 200° C. The insulating body includes: at least two channels and at least two accommodating grooves. Each channel runs through the insulating body along an axis, and the two channels are not connected to each other. Each accommodating groove communicates with one of the passages; wherein, the opposite sides of the insulating body are respectively defined as a front side and a rear side, the two accommodating grooves are located at the front side, and the insulating body has a slope on the front side, the slope is adjacent to Two storage slots are set. At least two fastening structures are integrally formed with the insulating body, and each fastening structure is used to pass through two fastening holes of the circuit board; each fastening structure includes an arm portion and a hook portion, and each arm portion is connected to each other. The opposite two sides are respectively defined as an outer side and an inner side, and the two inner sides included in the two fastening structures are arranged to face each other, and each hook portion is connected to the inner side of the arm portion. Each conductive member includes a body and two plug-in structures, and the body is connected to the two plug-in structures; each body has a through hole, and the through hole runs through the body; each conductive member is arranged in the insulating body, and each through hole is adjacent to one of them The channel and one of the accommodating slots are provided; the two plug-in structures of each conductive member are used to electrically connect with a circuit structure of the circuit board; wherein, each end of the coil of the wireless charging coil assembly is passed through one of the channels and the corresponding Each end of the coil can be connected to one of the conductive parts by welding, and each accommodating groove can accommodate a solder used to connect each coil to the conductive part Body; Wherein, when the two ends of the coil of the wireless charging coil assembly are connected to the fixing member by welding, the wireless charging coil assembly is correspondingly located at the rear side of the insulating body.

One embodiment of the present invention discloses a wireless charging device, which includes: a circuit board, a wireless charging coil assembly and a fixing component. The circuit board has two fastening through holes and a circuit structure, and each of the fastening through holes runs through the circuit board. The wireless charging coil assembly includes at least one coil. The fixing component includes: an insulating body, at least two fastening structures and at least two conductive parts. The insulating body is formed by a composition comprising a plastic material and a glass fiber; wherein, based on the total weight of the composition, the content of the glass fiber is between 20wt% and 40wt%, and a part of the insulating body is The heat-resistant temperature is not less than 200°C, and the insulating body includes: at least two channels and at least two accommodating grooves. Each of the passages runs through the insulating body along an axial direction, and the two passages are not connected to each other; each of the accommodating grooves is connected to one of the passages; wherein, the two sides of the insulating body are opposite to each other Defined as a front side and a rear side respectively, the two accommodating grooves are located on the front side, and the insulating body has an inclined surface on the front side, and the inclined surface is disposed adjacent to the two accommodating grooves. The two fastening structures are integrally formed with the insulating body, and each fastening structure is passed through two fastening through holes; each fastening structure includes an arm part and a hook part, and the opposite sides of each arm part are respectively defined It is an outer surface and an inner surface, and the two inner surfaces included in the two fastening structures are arranged facing each other, and each hook portion is connected with the inner surface of the arm portion, and the maximum width of the hook portion is the maximum width of the arm portion One-fourth to one-fifth of that. Each conductive member includes a body and two plug-in structures, and the body is connected to the two plug-in structures; each body has a through hole, and the through hole runs through the body; each conductive member is arranged in the insulating body, and each through hole is adjacent to one of them The channel and one of the accommodating slots are provided; the two plug-in structures of each conductive member are electrically connected to the circuit structure of the circuit board; wherein, each end of the coil of the wireless charging coil assembly passes through one of the channels and the adjacent one of them A through hole of a conductive part, and each end of the coil is connected to one of the conductive parts through a welding body, and a part of each welding body is correspondingly accommodated in the accommodating groove; wherein, the two coils of the wireless charging coil assembly When the end is connected to the fixed member through two welding bodies, the wireless charging coil assembly is correspondingly located on the rear side of the insulating body.

To sum up, the fixing member and the wireless charging device of the present invention are designed by making the insulating body have channels, accommodating grooves, and through holes. After the end of the coil passes through the channels and through holes and is located in the accommodating groove, That is, through the relevant automatic spot welding equipment, the solder is directly formed in the accommodating groove, so that the end of the coil is connected with the conductive member. In this way, the welding time and cost can be further effectively saved and the quality of the welding can be controlled. In addition, in the fixing member and wireless charging device of the present invention, the insulating body is formed by a composition including plastic material and glass fiber, and based on the total weight of the composition, the content of glass fiber is between 20wt% and 40wt%. , and the heat-resistant temperature of the insulating body is not less than 200°C, and the hooks are connected to the inner surface of the arm, and the maximum width of the hook is 1/4 to 1/5 of the maximum width of the arm. , when the fixing member is installed on the circuit board, each fastening structure will not be easily broken.

In order to further understand the characteristics and technical content of the present invention, please refer to the following detailed description and drawings related to the present invention, but these descriptions and drawings are only used to illustrate the present invention, rather than to make any statement on the scope of protection of the present invention. limit.

In the following description, if it is pointed out that please refer to the specific drawing or as shown in the specific drawing, it is only used to emphasize in the subsequent description, most of the relevant content mentioned appears in the specific drawing, It is not intended, however, to limit the ensuing description to only those particular drawings referred to.

Please refer to FIG. 1 to FIG. 8 together. FIG. 1 is a schematic diagram of the first embodiment of the wireless charging device of the present invention, FIG. 2 is a partially enlarged schematic diagram of FIG. 1 , FIG. 3 is a schematic diagram of the fixing member of the present invention, and FIG. 4 And Fig. 5 is an exploded schematic diagram of different viewing angles of the fixing member of the present invention, Fig. 6 is a partially enlarged schematic view of the clamping structure of the fixing member of the present invention, and Fig. 7 is a side schematic view of the clamping structure of the fixing member of the present invention, Fig. 8 is a schematic side view of the boss of the fixing member of the present invention.

The wireless charging device 100 of the present invention includes: a circuit board 1 , a wireless charging coil assembly 2 and a fixing member 3 . The circuit board 1 has two fastening holes 11 and a circuit structure (not shown in the figure, commonly known as layout), and each fastening hole 11 runs through the circuit board 1 . The wireless charging coil assembly 2 includes a coil 21 . In the drawings of this embodiment, it is taken that the wireless charging coil assembly 2 includes a single coil 21 as an example, but the wireless charging coil assembly 2 is not limited to only include a single coil 21. In different embodiments, wireless charging The number of coils 21 included in the coil assembly 2 can also be two, three or more. In practical applications, the wireless charging coil assembly 2 referred to herein may be manufactured according to relevant specifications of the Wireless Power Consortium (WPC).

The fixing member 3 includes: an insulating body 31 , two fastening structures 32 and two conductive elements 33 . In practical applications, the insulating body 31 and the two fastening structures 32 can be integrally formed, and each fastening structure 32 is also composed of insulating materials. The insulating body 31 and the two fastening structures 32 can be directly formed outside the two conductive parts 33 by means of injection molding to cover a part of the two conductive parts 33, but the insulating body 31 and the two fastening structures 32 The connection method is not limited to this.

The insulating body 31 is formed by a composition including a plastic material and a glass fiber; wherein, based on the total weight of the composition, the content of the glass fiber is between 20wt% and 40wt%, and a heat-resistant temperature of the insulating body 31 is not less than 200°C. It should be noted that the wireless charging coil assembly 2 may generate heat energy during operation, therefore, the heat-resistant temperature of the insulating body 31 must be not less than 200°C.

It should be emphasized that under the premise that the insulating body 31 can reach the heat-resistant temperature, if the insulating body 31 does not contain glass fibers, the insulating body 31 will be prone to embrittlement. On the contrary, the insulating body 31 of the present invention Based on the total weight of the composition, the glass fiber content is designed to be between 20wt% and 40wt%, and the two fastening structures 32 integrally formed and connected with the insulating body 31 are relatively less prone to embrittlement.

The insulating body 31 includes two channels 311 and two receiving grooves 312 . Each channel 311 runs through the insulating body 31 along an axial direction A, and the two channels 311 are not connected to each other. Each channel 311 is mainly used for passing both ends of the coil 21 . Therefore, the shape and size of the channel 311 can be determined according to the wire diameter and shape of the coil 21 , and are not limited to those shown in the figure.

Each containing groove 312 communicates with one of the channels 311 . Two opposite sides of the insulating body 31 are respectively defined as a front side 31A and a rear side 31B, and two accommodating grooves 312 are located at the front side 31A. As shown in Figure 1, when the two ends of the coil 21 of the wireless charging coil assembly 2 are fixed to the fixing member 3, the wireless charging coil assembly 2 is located at the rear side 31B of the insulating body 31, and the two ends of the coil 21 will be correspondingly located at In the two accommodating grooves 312 , the soldering bodies used for welding the two ends of the coil 21 and the two conductive elements 33 are correspondingly accommodated in the two accommodating grooves 312 . That is to say, each accommodating groove 312 is used for accommodating the welding body, so as to enhance the structural strength of the connection between each end of the coil 21 and the conductive member 33 . The shape and size of each accommodating slot 312 can be determined according to the shape and wire diameter of the coil 21 , and the figure shown in the figure is only one example.

It is worth mentioning that the insulating body 31 has an inclined surface 313 on the front side 31A, and the inclined surface 313 is located between the two receiving grooves 312 . Through the design of the inclined surface 313, if the molten solder falls on the inclined surface 313, it will slide off relatively easily, and most of the molten solder will concentrate and accumulate in the two receiving grooves 312, so that the This avoids the problem that the solders in the two receiving grooves 312 are connected to each other. It should be noted that, in the drawings of this embodiment, it is taken as an example that both sides of each accommodating groove 312 have slopes 313, but it is not limited thereto. In different embodiments, the slopes 313 can also be It is only located between two accommodating grooves 312 . In practical applications, the included angle between the slope 313 and the horizontal plane can be between 0° and 45°. In this way, during the soldering process, if there is molten solder falling on the slope 313, the solder will be relatively easily absorbed by gravity and flow from the slope 313. slide to the ground. In addition, it is worth mentioning that, through the above-mentioned design of the insulating body 31 of the present invention, the insulating body 31 can be manufactured using an integral mold in actual production, and the mold used to manufacture the insulating body 31 will be relatively easy to be design, and the cost of the mold used to manufacture the insulating body 31 will also be relatively cheap.

The two fastening structures 32 are connected to the insulating body 31 , and the two fastening structures 32 are integrally formed with the insulating body 31 . Each fastening structure 32 passes through the two fastening through holes 11 , and the insulating body 31 is fixed on the circuit board 1 through the two fastening structures 32 . In practical applications, the number and size of the fastening structures 32 included in the fixing member 3 and the positions of the fastening structures 32 are not limited to those shown in the figure. In different embodiments, the fixing member 3 may also include three or more locking structures 32 .

By making the insulating body 31 and each fastening structure 32 contain a predetermined proportion of glass fibers, the structural strength of the insulating body 31 and the fastening structure 32 can be effectively strengthened; in other words, if the insulating body and each fastening structure If the glass fiber with the above-mentioned predetermined content is not included, the overall strength of the insulating body and each fastening structure will be significantly lower than the strength of the insulating body and each fastening structure containing the above-mentioned predetermined content of glass fibers, and the insulating body and each fastening structure If the overall strength of the structure is not good, the fastening structure 32 is relatively easy to break when the fixing member 3 is assembled on the circuit board 1 .

As shown in Fig. 6 and Fig. 7, each fastening structure 32 comprises an arm portion 321 and a hook portion 322, and the opposite side surfaces of each arm portion 321 are respectively defined as an outer surface 3211 and an inner surface 3212, and the two locking The two inner surfaces 3212 included in the fixing structure 32 are arranged facing each other, each hook portion 322 is connected to the inner surface 3212 of the arm portion 321, and the maximum width 322D of the hook portion 322 is four times the maximum width 321D of the arm portion 321. One-fifth to one-fifth. By designing the maximum width 322D of the hook portion 322 to be one-fourth to one-fifth of the maximum width 321D of the arm portion 321, it can effectively prevent each fastening structure 32 from passing through each fastening perforation of the circuit board 1. 11, the hook portion 322 will not easily collapse. Furthermore, when each fastening structure 32 passes through the fastening through hole 11 of the circuit board 1, the hook portion 322 of each fastening structure 32 will abut against one side of the circuit board 1, and lean against the circuit board The two hooks 322 on one side of the circuit board 1 jointly limit the movable range of the insulating body 31 relative to the circuit board 1 .

Wherein, the outer surface 3211 may form an included angle with the vertical line, and the end 321A of each arm portion 321 away from the end 321A connected to the insulating body 31 may be a rounded structure, so that each fastening structure 32 penetrates the circuit board 1, each fastening structure 32 will pass through the fastening through hole 11 relatively easily, and the fastening structure 32 will not easily break during the process of passing through.

It should be noted that the above-mentioned design that the maximum width 322D of the hook portion 322 of each locking structure 32 is one-fourth to one-fifth of the maximum width 321D of the arm portion 321 is based on the glass in the insulating body 31. The fiber content is between 20wt% and 40wt%, that is, in practical applications, relevant personnel can adjust the maximum width of the hook portion 322 of each fastening structure 32 according to the content of glass fiber in the insulating body 31 322D and the maximum width 321D of the arm portion 321 relative to each other.

The opposite ends of each fastening structure 32 are respectively defined as a fastening connection end 32A and a fastening end 32B. Each hook portion 322 includes a first end in sequence from the end close to the fastening connection end 32A to the fastening end 32B. part 3221, a second part 3222 and a third part 3223, the end of the first part 3221 away from the inner surface 3212 has a first inclined surface 32211, and the side of the second part 3222 opposite to the inner surface 3212 is a rounded structure, The side of the third part 3223 opposite to the inner surface 3212 is a second inclined surface 32231; the included angle between the first inclined surface 32211 and the horizontal plane is between 0° and 45 degrees, and the included angle between the second inclined surface 32231 and the vertical line is between 0° and the vertical line 30 degrees, of which within 15 degrees is the best range. After each fastening structure 32 passes through the fastening through hole 11 of the circuit board 1 , the first inclined surface 32211 of each fastening structure 32 will abut against the side of the circuit board 1 facing the hook portion 322 . Through the design of the first inclined surface 32211 , the problem of the hook portion 322 collapsing when each fastening structure 32 and the circuit board 1 are abutted against each other can be avoided. In addition, by making the second portion 3222 of each fastening structure 32 opposite to the inner surface 3212 a rounded corner structure design, it can ensure that the hook portion 322 of each fastening structure 32 can pass through the fastening through hole of the circuit board 1 In the process of 11, the problem of collapse will not occur. Through the design of the second inclined surface 32231, each fastening structure 32 can be relatively easily entered into the fastening hole 11 of the circuit board 1, that is, relevant personnel or related equipment can apply relatively light force to the fixing member 3. That is to make the two fastening structures 32 pass through the two fastening through holes 11 of the circuit board 1 .

It is worth mentioning that each first part 3221 can also include a flat surface 32212, and the flat surface 32212 is located between the first inclined surface 32211 and the adjacent second part 3222. When the structure 32 is used, the first inclined surface 32211 and the second portion 3222 in a rounded structure can be better produced.

Each conductive member 33 includes a body 331 and two plug structures 332 , and the body 331 is integrally connected with the two plug structures 332 . The body 331 is fixed in the insulating body 31 , and the two plug structures 332 are exposed outside the insulating body 31 . The end of each plug structure 332 away from the body 331 is through a through hole 12 of the circuit board 1 , and the plug structure 332 through the through hole 12 can be fixed to the circuit board 1 by welding.

Each body 331 has a through hole 3311 , the through hole 3311 passes through the body 331 , and each through hole 3311 is disposed adjacent to one of the channels 311 and one of the receiving grooves 312 . Each end of the coil 21 of the wireless charging coil assembly 2 is passed through one of the channels 311 and the through hole 3311 of one of the adjacent conductive members 33, and each end of the coil 21 is correspondingly accommodated in a part of the welding body B. accommodating groove 312 . The shape and size of the main body 331 and the through hole 3311 can be determined according to the wire diameter and shape of each end of the coil 21 , and the figure shown is only one example. The solder body B referred to here is the cured solder (such as solder).

In practical applications, related equipment or personnel may first pass each end of the coil 21 through one of the channels 311 and one of the adjacent through holes 3311, and make the end of the coil 21 be located in the adjacent accommodating groove 312 , and then, using relevant welding equipment, solder is formed in the accommodation groove 312, the solder located in the accommodation groove 312 will enter the channel 311 along the accommodation groove 312, and the coil located in the accommodation groove 312 The end of 21 will be covered with solder, and the solder will accumulate at the connection between the conductive element 33 and the insulating body 31 . When the solder is solidified into a soldering body B, the soldering body B will connect the end of the coil 21 to the conductive member 33. Since a part of the soldering body B is located in the receiving groove 312, the coil 21 can be greatly improved. The stability of the connection between the terminal and the conductive member 33.

The two plug structures 332 of each conductive member 33 are used to electrically connect with the circuit structure of the circuit board 1 . The shape and size of each plug structure 332 are not limited to those shown in the figure. In practical applications, the shape and size of each plug structure 332, for example, can be matched with the shape and size of the circuit board 1. design. Each plug structure 332 can be, for example, a via that passes through the circuit board 1 , and is fixed to the circuit board 1 by welding. In practical applications, the number of plug-in structures 332 included in each conductive member 33 is not limited to two. It is worth mentioning that, in practical applications, the volume of the welded body B contained in each accommodating groove 312 can be changed correspondingly by changing the size of each accommodating groove 312, and accordingly the respective coils 21 can be changed. The connection strength (pullout strength) between the terminal and each conductive member 33 .

As shown in Figures 5 to 8, the fixing member 3 may also include two bosses 34, each boss 34 is arranged adjacent to one of the fastening structures 32, and one end of each boss 34 connected to the insulating body 31 is defined as a connection The end 34A, the end of each post 34 opposite to the connecting end 34A is defined as an end 34B, and the outer diameter 34D1 of each post 34 at the connecting end 34A is smaller than 1.1 times the outer diameter 34D2 of each post 34 at the end 34B. Each protrusion 34 is used to be fastened to two positioning holes 13 of the circuit board 1 . Through the design of the two auxiliary fixing protrusions 34 and the two fastening structures 32 , the insulating body 31 can be better fixed on the circuit board 1 . In addition, by making the outer diameter of each protrusion 34 at the connection end 34A smaller than 1.1 times the outer diameter of each protrusion 34 at the end 34B, each protrusion 34 can be more firmly engaged with the circuit board 1 . The number of the protrusions 34 and their positions on the insulating body 31 are not limited to those shown in the figure, and can be changed according to requirements.

In practical applications, when each protrusion 34 is engaged and arranged in the positioning hole 13 of the circuit board 1, each protrusion 34 and the positioning hole 13 of the circuit board 1 can be fixed to each other in a tight fit, that is, each protrusion The maximum outer diameter of the post 34 is slightly larger than the diameter of the positioning hole 13 of the circuit board 1. Through this design, the two protruding posts 34 can cooperate with the two fastening structures 32, so as to limit the relative position of the insulating body 31 to the circuit board. 1 The range of motion in the X-axis, Y-axis and Z-axis directions.

It should be noted that the above-mentioned design that the outer diameter of each boss 34 at the connecting end 34A is 1.1 times the outer diameter of each boss 34 at the end 34B is based on the fact that the glass fiber content in the insulating body 31 is between 20 wt%. ~40wt%, and the maximum width 322D of the hook portion 322 of each clamping structure 32 is one-fourth to one-fifth of the maximum width 321D of the arm portion 321, that is, in practical applications, relevant personnel can According to the content of glass fiber in the insulating body 31 and the relative relationship between the maximum width 322D of the hook portion 322 of each fastening structure 32 and the maximum width 321D of the arm portion 321, each protrusion 34 is adjusted correspondingly to The relationship between the outer diameter of the connection end 34A and the outer diameter of the terminal end 34B.

According to the above, in the embodiment where the fixing member 3 includes the fastening structure 32 and the boss 34, relevant personnel or equipment can easily and quickly fix the fixing member 3 on the correct position on the circuit board 1, and Each plug-in structure 332 of each conductive member 33 can be correctly inserted into the corresponding through hole of the circuit board 1 .

Please refer to FIG. 9 to FIG. 11 together, FIG. 9 is a schematic diagram of the second embodiment of the wireless charging device of the present invention, FIG. 10 is an exploded schematic diagram of the second embodiment of the wireless charging device of the present invention, and FIG. A partial cross-sectional schematic diagram of the second embodiment of the wireless charging device. The difference between this embodiment and the previous embodiments is that the wireless charging device 100 also includes an elevated structure 4 and a main circuit board 5, the elevated structure 4 is fixedly arranged on the main circuit board 5, and the elevated structure 4 and the main circuit A heat dissipation gap C is formed between the plates 5 . The circuit board 1 fixed with the fixing member 3 is fixedly arranged on the elevated structure 4, and the end of each plug-in structure 332 of each conductive member 33 of the fixing member 3 passes through a structural perforation 41 of the elevated structure 4 and connects with the main circuit Board 5 is connected. Through the design of the elevated structure 4, a heat dissipation gap C can be formed between the wireless charging coil assembly 2 and the main circuit board 5, thereby greatly reducing the heat generated by the wireless charging coil assembly 2 during operation. Accumulated in the wireless charging coil assembly 2 , and then lead to the problem of damage to the wireless charging coil assembly 2 .

It should be noted that, in the foregoing embodiments, the wireless charging device 100 includes two plug-in structures 332, multiple coils 21 and a single main circuit board 5 as an example, but the plug-in structure included in the wireless charging device 100 332, the number of coils 21 and the main circuit board 5 is not limited thereto. In an embodiment where the wireless charging device 100 includes more than two main circuit boards 5 , the two plug structures 332 and the plurality of coils 21 connected thereto may be connected to different main circuit boards 5 respectively.

Another difference between this embodiment and the previous embodiments is that the wireless charging device 100 also includes an anti-interference component 6, and the insulating body 31 also has a notch 31C on the rear side 31B, and the circuit board 1 and the notch 31C together form a limit position. In the slot D, a part of the anti-jamming component 6 is correspondingly located in the limiting slot D, and the wireless charging coil assembly 2 is arranged on one side of the anti-jamming component 6 . The anti-interference component 6 is used to reduce the interference of the wireless charging coil assembly 2 from external electromagnetic waves and the like when it is in operation.

Please refer to FIG. 13 , which is a schematic diagram of a third embodiment of the wireless charging device of the present invention. Another difference between this embodiment and the previous embodiments is that: the wireless charging coil assembly 2 further includes a sensor 7 . For example, the sensor 7 can be used to detect the real-time temperature of the coil 21, but not limited thereto. The opposite sides of the insulating body 31 are respectively a top surface 314 and a bottom surface 315. When the insulating body 31 is fixed on the circuit board 1 by two fastening structures 32, the bottom surface 315 faces the circuit board 1, and the insulating body 31 is on the bottom surface 315. One side has an auxiliary wire groove 316 , the auxiliary wire groove 316 is used for accommodating an auxiliary wire 71 of the sensor 7 , and the auxiliary wire 71 is used for transmitting the signal of the sensor 7 . The position, shape and size of the auxiliary wire groove 316 in the insulating body 31 are not limited to those shown in the figure. In addition, the number of auxiliary wire slots 316 can also be increased according to requirements.

In practical applications, one end of the auxiliary wire 71 passing through the auxiliary wire groove 316 may be soldered to the circuit board 1 . Therefore, through the design of the auxiliary wire slot 316 , the coil 21 of the wireless charging coil assembly 2 and the auxiliary wire 71 of the sensor 7 can pass through the fixing member 3 and be neatly fixed on the circuit board 1 .

The above descriptions are only preferred feasible embodiments of the present invention, and do not limit the patent scope of the present invention. Therefore, all equivalent technical changes made by using the description and drawings of the present invention are included in the scope of protection of the present invention. .

100 : Wireless charging device 1: circuit board 11: Fastening perforation 12: Through hole 13: positioning hole 2: Wireless charging coil assembly 21: Coil 3: fixed member 31: insulating body 311: channel 312: storage tank 313: slope 314: top surface 315: Bottom surface 316: Auxiliary trunking 31A : front side 31B : rear side 31C : Notch 32: clamping structure 321: arm 3211: Outer side 3212: medial side 321D : Maximum width 321A: end 322: hook 322D: maximum width 3221: Part 1 32211: The first inclined plane 32212: flat surface 3222: Part Two 3223: The third part 32231: second inclined plane 32A : Fastened connection end 32B : Fasten the end 33: conductive parts 331: body 3311: through hole 332: plug structure 34 : convex post 34A : connection end 34B : end 34D1: outer diameter 34D2: outer diameter 4: elevated structure 41: Structural perforation 5: main circuit board 6: Anti-interference parts 7 : Sensor 71: auxiliary line A : axis direction B : welded body C : heat dissipation gap D : limit slot

FIG. 1 is a schematic diagram of a first embodiment of a wireless charging device of the present invention.

FIG. 2 is a partially enlarged schematic diagram of FIG. 1 .

Fig. 3 is a schematic diagram of the fixing member of the present invention.

FIG. 4 and FIG. 5 are exploded schematic diagrams of different viewing angles of the fixing member of the present invention.

Fig. 6 is a partially enlarged schematic view of the fastening structure of the fixing member of the present invention.

Fig. 7 is a schematic side view of the fastening structure of the fixing member of the present invention.

Fig. 8 is a schematic side view of the protrusion of the fixing member of the present invention.

FIG. 9 is a schematic diagram of a second embodiment of the wireless charging device of the present invention.

FIG. 10 is an exploded schematic view of the second embodiment of the wireless charging device of the present invention.

FIG. 11 is a schematic partial cross-sectional view of a second embodiment of the wireless charging device of the present invention.

FIG. 12 is a schematic partial cross-sectional view of a second embodiment of the wireless charging device of the present invention.

FIG. 13 is a schematic diagram of a third embodiment of the wireless charging device of the present invention.

1: circuit board 11: Fastening perforation 12: Through hole 13: Positioning hole 3: fixed components 31: Insulation body 311: channel 32: Clamping structure 331: Ontology 3311: through hole 332: plug structure 34: convex post A: axis direction

Claims (18)

A fixing member, which is used to connect with both ends of at least one coil of a wireless charging coil assembly, and the coil can be electrically communicated with a circuit board through the fixing member, and the fixing member includes: an insulating body , which is formed from a composition comprising a plastic material and a glass fiber, the insulating body includes: at least two passages, each of which passes through the insulating body along an axis direction, and the two passages are not connected to each other Communication; at least two accommodating grooves, each of which is connected to one of the passages; wherein, the opposite sides of the insulating body are respectively defined as a front side and a rear side, and the two said accommodating grooves The accommodating groove is located on the front side, and the insulating body has an inclined surface on the front side, and the inclined surface is located between the two accommodating grooves; at least two fastening structures are integrally formed with the insulating body Each of the fastening structures is used to pass through the two fastening holes of the circuit board; each of the fastening structures includes an arm portion and a hook portion, and each of the two arm portions is opposite to each other. The side surfaces are respectively defined as an outer surface and an inner surface, and the two inner surfaces included in the two fastening structures are arranged to face each other, and each of the hook portions is opposite to the inner surface of the arm portion. Connection; at least two conductive parts, each of which includes a body and two plug-in structures, and the body is connected to the two plug-in structures; each of the bodies has a through hole, and the through hole runs through The main body; each of the conductive parts is disposed in the insulating body, and each of the through holes is disposed adjacent to one of the passages and one of the accommodating grooves; the two insertions of each of the conductive parts The connecting structure is used for electrically connecting with a circuit structure of the circuit board; Wherein, each end of the coil of the wireless charging coil assembly is passed through one of the passages and the through-hole of one of the adjacent conductive members, and each end of the coil can pass through the welded connected to one of the conductive elements, and each of the accommodating slots can accommodate a solder body used to connect each of the coils to the conductive element. The fixing member according to claim 1, wherein, based on the total weight of the composition, the content of the glass fiber is between 20wt% and 40wt%, and a heat-resistant temperature of the insulating body is not less than 200°C. The fixing member according to claim 1, wherein the maximum width of the hook portion of each of the fastening structures is 1/4 to 1/5 of the maximum width of the arm portion. The fixing member according to claim 1, wherein the opposite sides of the insulating body are respectively a top surface and a bottom surface, and when the insulating body is fixed to the circuit board through the two fastening structures, the The bottom surface faces the circuit board, and the insulating body has an auxiliary wire groove on one side of the bottom surface, and the auxiliary wire groove is used for accommodating an auxiliary wire of the wireless charging coil assembly. The fixing member according to claim 1, wherein the angle between the slope and the horizontal plane is between 0° and 45°. The fixing member according to claim 1, wherein the fixing member further comprises two protrusions, each of the protrusions is arranged adjacent to one of the fastening structures, and each of the protrusions is connected to the insulating body One end of each of the bosses is defined as a connecting end, and the end of each of the bosses opposite to the connecting end is defined as an end, and the outer diameter of each of the bosses at the connecting end is smaller than the outer diameter of each of the bosses at the end. 1.1 times the diameter; each of the protrusions is used to be fastened to two positioning holes of the circuit board. The fixing member according to claim 1, wherein the opposite ends of each of the fastening structures are respectively defined as a fastening connection end and a fastening end, and each of the hooks is formed by a hook close to the fastening connection end. One end to the fastening end includes a first part, a second part and a third part in sequence, the end of the first part away from the inner surface has a first inclined surface, and the second part is opposite One side of the inner surface is a rounded structure, and the side of the third part opposite to the inner surface is a second inclined surface; the included angle between the first inclined surface and the horizontal plane is between 0 and 45 degrees , the included angle between the second inclined surface and the vertical line is between 0° and 30°. The fixing member according to claim 1, wherein the width of each accommodating groove is not smaller than the width of the through hole; the two ends of the coil of the wireless charging coil assembly are welded to the fixing member When connected, the wireless charging coil assembly is correspondingly located on the rear side of the insulating body. A wireless charging device, as a sending end, includes: a circuit board, which has two fastening holes and a circuit structure, and each of the fastening holes passes through the circuit board; a wireless charging coil assembly, which includes at least one Coil; a fixed component, which includes: an insulating body, which is formed by a composition including a plastic material and a glass fiber, and the insulating body includes: at least two channels, each of which runs through an axial direction In the insulating body, the two channels are not communicated with each other; at least two accommodating grooves, each of the accommodating grooves communicates with one of the channels; wherein, the opposite sides of the insulating body define It is a front side and a rear side, the two accommodating grooves are located on the front side, and the insulating body has a slope on the front side, and the slope is arranged adjacent to the two accommodating grooves; At least two fastening structures, which are integrally formed with the insulating body, each of the fastening structures is passed through the two fastening through holes; each of the fastening structures includes an arm portion and a hook portion The opposite side surfaces of each of the arm portions are respectively defined as an outer surface and an inner surface, and the two inner surfaces included in the two locking structures are arranged to face each other, and each of the hook portions Connected to the inner surface of the arm; at least two conductive parts, each of which includes a body and two plug-in structures, and the body is connected to the two plug-in structures; each of the The body has a through hole, and the through hole runs through the body; each of the conductive elements is disposed in the insulating body, and each of the through holes is disposed adjacent to one of the channels and one of the accommodating grooves; each The two plug-in structures of the conductive member are electrically connected to the circuit structure of the circuit board; wherein, each end of the coil of the wireless charging coil assembly passes through one of the channels and The through hole of one of the adjacent conductive parts, and each end of the coil is connected to one of the conductive parts through a welding body, and a part of each welding body is correspondingly accommodated in the The accommodating tank. The wireless charging device according to claim 9, wherein, based on the total weight of the composition, the content of the glass fiber is between 20wt% and 40wt%, and a heat-resistant temperature of the insulating body is not less than 200°C. The wireless charging device according to claim 9, wherein the maximum width of the hook portion is 1/4 to 1/5 of the maximum width of the arm portion. The wireless charging device according to claim 9, wherein the wireless charging coil assembly further includes a sensor, and the opposite sides of the insulating body are respectively a top surface and a bottom surface, and the insulating body passes through two The card is consolidated When the structure is fixed on the circuit board, the bottom surface faces the circuit board, and the insulating body has an auxiliary wire groove on one side of the bottom surface, and the auxiliary wire groove is used to accommodate the sensor An auxiliary line for transmitting the signal of the sensor. The wireless charging device according to claim 9, wherein the angle between the slope and the horizontal plane is between 0° and 45°. The wireless charging device according to claim 9, wherein the fixing member further includes two protrusions, each of the protrusions is disposed adjacent to one of the locking structures, and each of the protrusions is in contact with the insulating body. One end of the connection is defined as a connection end, and the end of each of the protrusions opposite to the connection end is defined as an end, and the outer diameter of each of the protrusions at the connection end is smaller than that of each of the protrusions at the end. 1.1 times the outer diameter; each of the protrusions is used to be fastened to two positioning holes of the circuit board. The wireless charging device according to claim 9, wherein the opposite ends of each of the fastening structures are respectively defined as a fastening connection end and a fastening end, and each of the hooks is connected by a One end of the end to the fastening end includes a first part, a second part and a third part in sequence, the end of the first part away from the inner surface has a first inclined surface, and the second part The side opposite to the inner surface is a rounded structure, and the side of the third part opposite to the inner surface is a second inclined surface; the included angle between the first inclined surface and the horizontal plane is between 0 and 45° degrees, the angle between the second inclined surface and the vertical line is between 0 and 30 degrees. The wireless charging device according to claim 9, wherein the width of each of the accommodating slots is not smaller than the width of the through hole; wherein, the two ends of the coil of the wireless charging coil assembly pass through the two When the welding body is connected with the fixing member, the wireless charging coil assembly is correspondingly located on the insulating Edge the rear side of the body. The wireless charging device according to claim 9, wherein the wireless charging device further includes an anti-interference component, the insulating body also has a notch on the rear side, and the circuit board and the notch jointly form a A limiting slot, a part of the anti-jamming component is correspondingly located in the limiting slot, and the wireless charging coil assembly is arranged on one side of the anti-jamming component. The wireless charging device according to claim 9, wherein the wireless charging device further includes an elevated structure and a main circuit board, the elevated structure is fixedly arranged on the main circuit board, and the elevated structure A heat dissipation gap is formed between the main circuit board and the circuit board on which the fixing member is fixed is fixedly arranged on the elevated structure, and each of the plug-in connectors of each of the conductive parts of the fixing member The end of the structure is connected to the main circuit board through a structural hole through the elevated structure.

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