Automobile wireless charging key support structure and mounting method

Abstract

The invention relates to an automobile wireless charging key support structure and an installation method, the automobile wireless charging key support structure comprises a shell (2) and a PCB (3), a support (1) is arranged in the shell (2), one end of the support (1) is connected with the PCB (3), a rechargeable battery (4) is arranged between the upper end face of the support (1) and the shell (2), and a charging coil (5) is arranged between the lower end face of the support (1) and the shell (2). The structure is simple and reliable, the support (1) supports the rechargeable battery (4) and the charging coil (5) at the same time, and the PCB (3) and the support (1) are horizontally arranged, so that the overall thickness can be reduced; the support (1) can facilitate installation of other parts, and installation efficiency is improved while installation strength is improved.

Description

Technical Field

[0001] This invention belongs to the field of automotive accessories. Specifically, this invention relates to a wireless charging key holder structure and installation method for automobiles. Background Technology

[0002] The rise of wireless charging car key technology is an inevitable product of the combined effects of the trends towards intelligent and convenient automobiles and the actual pain points of users. As car keys become increasingly functional, evolving from simple mechanical unlocking to intelligent remote keys integrating remote start, window control, car location, and other functions, their power consumption has also increased significantly. The traditional solution is to use button batteries, but these batteries have limited capacity, often leaving users facing the embarrassment and inconvenience of suddenly running out of power, especially when they need to use the car at crucial moments. While replacing batteries seems simple, it still presents a certain barrier for users unfamiliar with the operation, and discarded button batteries also burden the environment. To provide a continuous and uninterrupted power supply for remote keys, the use of wireless rechargeable batteries in the keys has become widespread.

[0003] Rechargeable batteries require a charging coil, and the charging coil and battery need structural isolation and support to form a charging module. Wireless charging modules have strict requirements on structural height, and the composite structure of the rechargeable battery / support structure / charging coil limits the minimum height of the car key. An excessively high overall height of the car key will reduce the comfort of using the key and affect its overall appearance, making the key bulky and giving it a poor user experience.

[0004] After searching, the inventor found the application number published on January 14, 2015. CN201310294097.7 discloses a car key and its installation method. The car key and installation method include an upper outer shell and a lower outer shell connected to each other. A PCB board and a soft rubber inner shell are housed between the upper and lower outer shells. A wireless charging module is also included, fixed to the upper surface of the PCB board. The soft rubber inner shell includes an upper soft rubber inner shell and a lower soft rubber inner shell, with the PCB board and wireless charging module disposed between them. The upper soft rubber inner shell has a first receiving portion; the lower soft rubber inner shell has a second receiving portion; the inner surface of the upper outer shell has positioning ribs forming a first receiving portion, allowing a protruding portion of the upper soft rubber inner shell to be disposed within the first receiving portion; the inner surface of the lower outer shell has fixing ribs forming a second receiving portion, allowing the lower soft rubber inner shell to be disposed within the second receiving portion. While this invention enables wireless charging for the car key, its internal structure is not simple enough, resulting in a thicker and heavier car key. Summary of the Invention

[0005] This invention addresses the aforementioned problems and aims to provide a simple and easy-to-install car wireless charging key holder structure and installation method. To achieve this objective, the technical solution adopted by this invention is as follows: A wireless charging key holder structure for automobiles includes a housing and a PCB board. A bracket is provided inside the housing. One end of the bracket is connected to the PCB board. A rechargeable battery is provided between the upper end face of the bracket and the housing. A charging coil is provided between the lower end face of the bracket and the housing.

[0006] The bracket is provided with a locking mechanism at one end near the PCB board. The locking mechanism is located on both sides of the bracket. The locking mechanism includes a first locking foot and a second locking foot. The first locking foot and the second locking foot are perpendicularly distributed. The PCB board is provided with a slot that mates with the first locking foot. The first locking foot engages with the slot, and the PCB board is inserted into the second locking foot.

[0007] The first latch includes a first latching portion and a first limiting portion connected to the first latching portion; the second latch includes a second latching portion and a second limiting portion connected to the second latching portion; a support block is provided between the first latch and the second latch, and the support block is supported on the lower end face of the PCB board.

[0008] The bracket has battery limiting blocks on both sides, and a battery baffle on the side of the bracket away from the PCB board. The rechargeable battery is located between the battery limiting blocks and the battery baffle. The lower end face of the bracket has a coil groove, and the charging coil is located in the coil groove.

[0009] A first adhesive layer is provided between the bracket and the charging coil, and a second adhesive layer is provided between the bracket and the rechargeable battery.

[0010] The bracket has a weight reduction hole on the side near the PCB board. The bracket has a crossbeam on one side of the battery limiting block. One end of the crossbeam is connected to the battery limiting block, and the other end of the crossbeam extends to the other side of the battery limiting block.

[0011] The PCB board includes solder joints on the upper surface and mounting holes on one side of the solder joints. The rechargeable battery includes a positive wire, a negative wire, and an NTC output wire. The positive wire, negative wire, and NTC output wire are respectively connected to the corresponding solder joints on the PCB board. The charging coil includes connecting wires connected to the solder joints.

[0012] The housing has a protrusion at the end away from the PCB board, the bracket has a protrusion at the end away from the PCB board, the protrusion overlaps with the protrusion, the lower end face of the bracket has a protruding strip at the end near the protrusion, and the housing has a boss, the protruding strip abuts against the boss.

[0013] The crossbeam has a triangular structure, the first latching part has a trapezoidal structure, the first limiting part has a rectangular block structure, the second latching part has a trapezoidal structure, the second limiting part has a rectangular block structure, the support block has a trapezoidal structure, the battery baffle is a long strip plate, the battery limiting block includes a long strip limiting part and a rectangular connecting part connected to the limiting part, and the coil groove is an elliptical recess.

[0014] An installation method for a wireless charging key holder structure for automobiles is as follows: During installation, one end of the first adhesive backing is pasted into the coil groove, and the other end of the first adhesive backing is pasted onto the charging coil. One end of the second adhesive backing is pasted between the battery limiting block and the battery baffle, and the other end of the second adhesive backing is pasted onto the rechargeable battery. The PCB board is snapped onto the holder, with the first clip overlapping the clip groove and the second clip snapping onto the PCB board. The support block is supported on the lower end face of the PCB board. The connecting wire, positive wire, negative wire, and NTC output wire are respectively connected to the corresponding solder points on the PCB board. The protrusion on the housing overlaps with the protrusion on the holder, and the protruding strip on the holder abuts against the boss on the housing. The PCB board is fixed onto the housing with screws through the mounting holes. The housing near the upper end face of the holder is then connected to complete the installation.

[0015] The technical advantages of this invention are as follows: This invention provides a wireless charging key holder structure and installation method for automobiles, comprising a housing and a PCB board. A bracket is housed within the housing, with one end of the bracket connected to the PCB board. A rechargeable battery is disposed between the upper surface of the bracket and the housing, and a charging coil is disposed between the lower surface of the bracket and the housing. The PCB board is connected to one end of the bracket via a clip mechanism, and a support block provides structural strength for the PCB board connection. The rechargeable battery and charging coil are respectively mounted at both ends of the bracket using adhesive backing, significantly reducing installation difficulty. The horizontal arrangement of the PCB board and bracket reduces the overall thickness of the key, improving its aesthetics. Attached Figure Description

[0016] This manual includes the following figures, which illustrate the following: Figure 1 This is a side sectional view of a wireless charging key holder structure for automobiles according to the present invention; Figure 2 This is a front view of the overall structure of a wireless charging key holder for automobiles according to the present invention. Figure 3 This is a schematic diagram of the back of the overall structure of the wireless charging key holder for automobiles according to the present invention; Figure 4 This is a schematic diagram of a wireless charging key holder structure for automobiles according to the present invention; Figure 5 This is a schematic diagram of a PCB board for a wireless charging key holder structure for automobiles according to the present invention; Figure 6 This is a schematic diagram of a battery structure for a wireless charging key holder for automobiles according to the present invention; Figure 7 This is a schematic diagram of the coil structure of a wireless charging key holder for automobiles according to the present invention; The diagram is marked as follows: 1. Bracket; 11. Clamping mechanism; 111. First clamping foot; 112. Second clamping foot; 113. First latching part; 114. First limiting part; 115. Second latching part; 116. Second limiting part; 12. Support structure; 13. Battery limiting block; 131. Limiting part; 132. Connecting part; 14. Battery baffle; 15. Coil groove; 16. Weight reduction hole; 17. Protrusion; 18. Raised strip; 2. Housing; 21. Protrusion; 22. Boss; 3. PCB board; 31. Slot; 32. Solder joint; 33. Mounting hole; 4. Rechargeable battery; 41. Positive wire; 42. Negative wire; 43. NTC output wire; 5. Charging coil; 51. Connecting wire; 6. First adhesive backing; 7. Second adhesive backing; 8. Crossbeam. Detailed Implementation

[0017] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the inventive concept and technical solution of the present invention, and to facilitate its implementation.

[0018] like Figure 1 As shown, a wireless charging key holder structure for automobiles includes a housing 2 and a PCB board 3. A bracket 1 is housed within the housing 2, with one end of the bracket 1 connected to the PCB board 3. A rechargeable battery 4 is disposed between the upper surface of the bracket 1 and the housing 2, and a charging coil 5 is disposed between the lower surface of the bracket 1 and the housing 2. The charging coil 5, used in conjunction with the rechargeable battery 4, can increase the key's battery life and reduce the frequency of battery replacements. The bracket 1 integrates the PCB board 3, the rechargeable battery 4, and the charging coil 5, reducing the overall structural installation difficulty.

[0019] like Figure 2 and Figure 5As shown, a locking mechanism 11 is provided at one end of the bracket 1 near the PCB board 3. The locking mechanism 11 is located on both sides of the bracket 1 and includes a first locking foot 111 and a second locking foot 112. The first locking foot 111 and the second locking foot 112 are perpendicularly distributed. The PCB board 3 has a slot 31 that mates with the first locking foot 111. The first locking foot 111 engages with the slot 31, and the PCB board 3 is inserted into the second locking foot 112. The use of the locking mechanism 11 enables the PCB board 3 to be quickly positioned, prevents movement or loosening, and ultimately forms a stable connection or fixed state. The slot 31 is a rectangular groove that can easily engage with the first locking foot 111 during installation, optimizing the PCB board installation process and improving installation efficiency. The tight fit between the locking mechanism 11 and the slot 31 on the PCB board 3 eliminates gaps between components, prevents shaking and noise during use, and also enhances the overall stability.

[0020] like Figure 2 and Figure 4 As shown, the first latch 111 includes a first latching portion 113 and a first limiting portion 114 connected to the first portion 113. The second latch 112 includes a second latching portion 115 and a second limiting portion 116 connected to the second latching portion 115. A support block 12 is provided between the first latch 111 and the second latch 112, and the support block 12 is supported on the lower end face of the PCB board 3. The first latching portion 113 and the second latching portion 115 can fix the upper end face of the PCB board 3 to prevent the PCB board from loosening or falling off due to key vibration. The first limiting portion 114 and the second limiting portion 116 are symmetrical to further fix the position of the PCB board and prevent the PCB board from shaking and causing damage. The support block 12 is provided on the lower end face of the PCB board 3. By adding a support block 12, a support point is added, thereby improving the strength, stability and reliability of the structure. This improves the overall installation strength of the structure, provides additional limiting and guiding functions for PCB board installation, optimizes the installation process and improves installation efficiency.

[0021] like Figure 2 , Figure 3 and Figure 4As shown, battery limiting blocks 13 are provided on both sides of the bracket 1, and a battery baffle 14 is provided on the side of the bracket 1 away from the PCB board 3. The rechargeable battery 4 is located between the battery limiting blocks 13 and the battery baffle 14. A coil groove 15 is provided on the lower end face of the bracket 1, and the charging coil 5 is located in the coil groove 15. The rechargeable battery 4 is located between the battery limiting blocks 13 and the battery baffle 14 to prevent the rechargeable battery 4 from moving or loosening due to shaking, dropping, or other factors during daily use of the car key. The coil groove 15 facilitates the installation of the charging coil 5 and provides robust physical protection. The charging coil 5 is made of thin enameled wire and is relatively fragile. The coil groove 15 protects the coil and can effectively prevent the charging coil 5 from shifting or being damaged due to squeezing or pulling when the key is impacted, dropped, or during internal assembly. This greatly enhances the overall structural reliability and stability.

[0022] like Figure 1 As shown, a first adhesive 6 is provided between the bracket 1 and the charging coil 5, and a second adhesive 7 is provided between the bracket 1 and the rechargeable battery 4. The use of the first adhesive 6 and the second adhesive 7 can simplify the assembly process and reduce assembly costs; the rechargeable battery 4 and the charging coil 5 are relatively fragile, and the soft texture of the adhesive can achieve comprehensive stress distribution and cushioning protection, and can evenly absorb and disperse the stress from external impacts, vibrations, and daily drops, avoiding point-like or linear hard pressure from damaging the charging coil 5 and the rechargeable battery 4, thus providing excellent cushioning protection.

[0023] like Figure 2 and Figure 4 As shown, the bracket 1 has a weight-reducing hole 16 on the side near the PCB board 3, and a crossbeam 8 on the side of the battery limiting block 13. One end of the crossbeam 8 is connected to the battery limiting block 13, and the other end of the crossbeam 8 extends to the other side of the battery limiting block 13. The weight-reducing hole 16 can reduce the overall weight while ensuring structural strength and improve the overall feel. The internal space of the wireless charging key is extremely compact. These weight-reducing holes 16 can also provide a path for the wiring of the small cables connecting the charging battery 4 and the charging coil 5 to the PCB board 3, preventing the cables from being squeezed. The crossbeam 8 can effectively distribute and transfer the load with less material, preventing the bracket 1 from being deformed or damaged due to excessive local stress. This makes the entire bracket 1 more stable and reliable when bearing vertical and horizontal loads, ensuring that it maintains structural integrity and functionality during use.

[0024] like Figure 2 , Figure 6 and Figure 7As shown, the PCB board 3 includes solder joints 32 on its upper surface and mounting holes 33 on one side of the solder joints 32. The rechargeable battery 4 includes a positive wire 41, a negative wire 42, and an NTC output wire 43. The positive wire 41, negative wire 42, and NTC output wire 43 are respectively connected to the corresponding solder joints 32 on the PCB board 3. The charging coil 5 includes a connecting wire 51 connected to the solder joints 32. The solder joints 32 on the PCB board facilitate connection with other components.

[0025] like Figure 1 As shown, the end of the housing 2 away from the PCB board 3 has a protrusion 21, and the end of the bracket 1 away from the PCB board 3 has a protrusion 17. The protrusion 17 overlaps with the protrusion 21. The lower end face of the bracket 1 near the protrusion 17 has a protruding strip 18. The housing 2 has a boss 22, and the protruding strip 18 abuts against the boss 22. The protrusion 21 has a trapezoidal structure, and the protrusion 17 has a fan-shaped structure. The overlap of the protrusion 17 and the protrusion 21, and the abutment of the protruding strip 18 against the boss 22, facilitate the connection between the bracket 1 and the housing 2, and prevent damage to the key caused by displacement of the bracket 1 and the housing 2 during key impact, drop, or internal assembly.

[0026] like Figure 4 As shown, the crossbeam 8 has a triangular structure, the first locking part 115 has a trapezoidal structure, the first limiting part 114 has a rectangular block structure, the second locking part 115 has a trapezoidal structure, the second limiting part 116 has a rectangular block structure, the support block 12 has a trapezoidal structure, the battery baffle 14 is a long strip plate, and the battery limiting block 13 includes a long strip limiting part 131 and a rectangular connecting part 132 connected to the limiting part 131. The coil groove 15 is an elliptical recess. The support block 12, battery baffle 14, and battery limiting block 13 adopt a simple structure, which can reduce the manufacturing cost while ensuring the overall strength of the invention.

[0027] The first latching part 115 and the second latching part 115 are trapezoidal structures. The front ends of the first latching part 115 and the second latching part 115 that contact the PCB board 3 are provided with rounded corners. When the key is shaken or dropped, the rounded corners can make the stress distribution more uniform and effectively reduce the degree of stress concentration, thereby improving the strength and service life of the parts. In the assembly process, the rounded corners play a guiding role, making the assembly of the PCB board 3 smoother and preventing assembly difficulties or even damage to the PCB board 3 due to sharp edges, thus optimizing the assembly process.

[0028] An installation method for a wireless charging key holder structure for automobiles is as follows: During installation, one end of the first adhesive 6 is pasted into the coil groove 15, and the other end of the first adhesive 6 is pasted onto the charging coil 5. One end of the second adhesive 7 is pasted between the battery limiting block 13 and the battery baffle 14, and the other end of the second adhesive 7 is pasted onto the rechargeable battery 4. The PCB board 3 is snapped onto the bracket 1, the first clip 111 is snapped into the slot 31, the second clip 112 overlaps the PCB board 3, and the support is supported on the lower end face of the PCB board 3. The connecting wire 51, the positive wire 41, the negative wire 42, and the NTC output wire 43 are respectively connected to the corresponding solder points 32 on the PCB board 3. The protrusion 21 on the housing 2 overlaps with the protrusion 17 on the bracket 1, and the protruding strip 18 on the bracket 1 abuts against the boss 22 on the housing 2. The PCB board 3 is fixed onto the housing 2 with screws through the mounting holes 33. The housing 2 near the upper end face of the bracket 1 is then connected to complete the installation.

[0029] A wireless charging key holder structure for cars includes a housing 2 and a PCB board 3. A bracket 1 is provided inside the housing 2. One end of the bracket 1 is connected to the PCB board 3. A rechargeable battery 4 is provided between the upper end face of the bracket 1 and the housing 2. A charging coil 5 is provided between the lower end face of the bracket 1 and the housing 2. During installation, one end of the first adhesive 6 is pasted into the coil groove 15, and the other end of the first adhesive 6 is pasted onto the charging coil 5. One end of the second adhesive 7 is pasted between the battery limiting block 13 and the battery baffle 14, and the other end of the second adhesive 7 is pasted onto the rechargeable battery 4. The PCB board 3 is snapped onto the bracket 1, the first clip 111 is snapped into the slot 31, and the second clip 112 overlaps the PCB board 3. The support is supported on the lower end face of the PCB board 3. The connecting wire 51, positive wire 41, negative wire 42 and NTC output wire 43 are respectively connected to the corresponding solder points 32 on the PCB board 3. The protrusion 21 on the housing 2 overlaps with the protrusion 17 on the bracket 1, and the protruding strip 18 on the bracket 1 abuts against the boss 22 on the housing 2. The PCB board 3 is fixed onto the housing 2 with screws through the mounting holes 33. The housing 2 near the upper end face of the bracket 1 is connected to complete the installation. This invention employs a locking mechanism 11 to fix the PCB board 3, achieving rapid positioning of the PCB board 3 and preventing movement or loosening. The tight fit between the locking mechanism 11 and the slot 31 on the PCB board 3 eliminates gaps between components, preventing shaking and noise during use, and also enhancing overall stability. The coil groove 15 provides robust physical protection for the charging coil 5, preventing it from being damaged due to compression or pulling. The rechargeable battery 4 is positioned between the battery limit block 13 and the battery baffle 14 to prevent the rechargeable battery 4 from moving or loosening during daily use due to shaking or dropping. The weight-reducing hole 16 not only reduces the weight of the key and improves its feel, but also provides a path for the wiring of the small cables connecting the rechargeable battery 4 and the charging coil 5 to the PCB board 3, preventing the cables from being squeezed. The crossbeam 8 effectively distributes and transfers the load with less material, preventing excessive local stress on the bracket 1 and thus deformation or damage. This invention relates to a structure and installation method for a thin wireless charging key holder for automobiles. The holder 1 simultaneously supports the charging battery 4 and the charging coil 5, and is connected to the PCB board 3 through the locking mechanism 11. This invention uses a large number of components that restrict the movement of parts, which can effectively reduce the movement or loosening of various components inside the key due to frequent shaking or dropping of the key. The holder 1 can improve the structural sturdiness and reliability and facilitate assembly, while reducing the thickness of the overall structure, saving the overall height space of the key, improving the comfort of key use and user appearance, and making the key itself lightweight and easy to carry.

[0030] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made using the inventive concept and technical solution; or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A wireless charging key holder structure for automobiles, comprising a housing (2) and a PCB board (3), characterized in that: The housing (2) is provided with a bracket (1), one end of the bracket (1) is connected to the PCB board (3), a rechargeable battery (4) is provided between the upper end face of the bracket (1) and the housing (2), and a charging coil (5) is provided between the lower end face of the bracket (1) and the housing (2).

2. The automotive wireless charging key holder structure according to claim 1, characterized in that: The bracket (1) is provided with a locking mechanism (11) at one end near the PCB board (3). The locking mechanism (11) is located on both sides of the bracket (1). The locking mechanism (11) includes a first locking foot (111) and a second locking foot (112). The first locking foot (111) and the second locking foot (112) are vertically distributed. The PCB board (3) is provided with a slot (31) that cooperates with the first locking foot (111). The first locking foot (111) is engaged with the slot (31). One end of the PCB board (3) is inserted into the second locking foot (112).

3. The automotive wireless charging key holder structure according to claim 2, characterized in that: The first latch (111) includes a first latching part (113) and a first limiting part (114) connected to the first latching part (113). The second latch (112) includes a second latching part (115) and a second limiting part (116) connected to the second latching part (115). A support block (12) is provided between the first latch (111) and the second latch (112), and the support block (12) is supported on the lower end face of the PCB board (3).

4. The automotive wireless charging key holder structure according to claim 1, characterized in that: The bracket (1) has battery limiting blocks (13) on both sides, and a battery baffle (14) is provided at one end of the bracket (1) away from the PCB board (3). The rechargeable battery (4) is located between the battery limiting block (13) and the battery baffle (14). The lower end face of the bracket (1) has a coil groove (15), and the charging coil (5) is located in the coil groove (15).

5. The automotive wireless charging key holder structure according to claim 1, characterized in that: A first adhesive (6) is provided between the bracket (1) and the charging coil (5), and a second adhesive (7) is provided between the bracket (1) and the rechargeable battery (4).

6. A wireless charging key holder structure for automobiles according to any one of claims 1 to 5, characterized in that: The bracket (1) has a weight reduction hole (16) on the side near the PCB board (3). The bracket (1) has a crossbeam (8) on one side of the battery limiting block (13). One end of the crossbeam (8) is connected to the battery limiting block (13), and the other end of the crossbeam (8) extends to the other side of the battery limiting block (13).

7. The automotive wireless charging key holder structure according to claim 6, characterized in that: The PCB board (3) includes a solder joint (32) on the upper end face and a mounting hole (33) on one side of the solder joint (32). The rechargeable battery (4) includes a positive line (41), a negative line (42) and an NTC output line (43). The positive line (41), the negative line (42) and the NTC output line (43) are respectively connected to the corresponding solder joint (32) on the PCB board (3). The charging coil (5) includes a connecting line (51) connected to the solder joint (32).

8. The automotive wireless charging key holder structure according to claim 6, characterized in that: The housing (2) has a protrusion (21) at one end away from the PCB board (3), and the bracket (1) has a protrusion (17) at one end away from the PCB board (3). The protrusion (17) overlaps with the protrusion (21). The lower end face of the bracket (1) near the protrusion (17) has a protruding strip (18). The housing (2) has a boss (22), and the protruding strip (18) abuts against the boss (22).

9. The automotive wireless charging key holder structure according to claim 6, characterized in that: The crossbeam (8) is a triangular structure, the first snap-fit ​​part (115) is a trapezoidal structure, the first limiting part (114) is a rectangular block structure, the second snap-fit ​​part (115) is a trapezoidal structure, the second limiting part (116) is a rectangular block structure, the support block (12) is a trapezoidal structure, the battery baffle (14) is a long strip plate, the battery limiting block (13) includes a long strip limiting part (131) and a rectangular connecting part (132) connected to the limiting part (131), and the coil groove (15) is an elliptical recess.

10. A method for installing a wireless charging key holder structure for an automobile, implemented according to any one of claims 1 to 9, characterized in that: Specifically, during installation, one end of the first adhesive backing (6) is pasted into the coil groove (15), and the other end of the first adhesive backing (6) is pasted onto the charging coil (5). One end of the second adhesive backing (7) is pasted between the battery limiting block (13) and the battery baffle (14), and the other end of the second adhesive backing (7) is pasted onto the rechargeable battery (4). The PCB board (3) is snapped onto the bracket (1), the first clip (111) is snapped into the slot (31), and the second clip (112) overlaps the PCB board (3) to support the quick-release bracket. Support the bottom surface of the PCB board (3), connect the connecting wire (51), positive wire (41), negative wire (42) and NTC output wire (43) to the corresponding solder points (32) on the PCB board (3) respectively, connect the protrusion (21) on the housing (2) to the protrusion (17) on the bracket (1), and abut the protrusion strip (18) on the bracket (1) to the boss (22) on the housing (2). Fix the PCB board (3) to the housing (2) with screws through the mounting hole (33), and connect the housing (2) near the top surface of the bracket (1) to complete the installation.

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