Adapter with temperature detection function

Abstract

The utility model discloses an adapter with a temperature detection function, which comprises a mounting seat, a shell covered on the outer side of the mounting seat, and a signal terminal switching assembly, a power terminal switching assembly and a grounding terminal assembly which are mounted on the mounting seat. The miniature thermal cutoff module obtains the real-time temperature of the power terminal switching assembly through the heat conduction pad and controls the on-off of a loop where the signal terminal switching assembly is located according to a real-time temperature signal, and then a charging gun or a vehicle socket connected with the adapter obtains an on-off signal of the loop where the signal terminal switching assembly is located. The self-cut-off and protection functions of the adapter are realized, so that the damage and spontaneous combustion of the adapter caused by abnormal high temperature such as overload are avoided, and the safety of a vehicle can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of adapters, in particular to an adapter with a temperature detection function. Background Art

[0002] With the continuous inclination of national policies towards new energy vehicles and the development of the industry itself, new energy vehicles are being accepted and sought after by more and more consumers. However, the problems of difficulty in charging, slow charging, and concerns about the range of the vehicle are becoming more prominent. In terms of on-board charging, in addition to the problem of slow charging, there are also problems of incompatibility of charging standards and basic charging equipment in each country and region. At this time, the charging adapter that meets the mutual conversion between different standards can not only use its own charging network for charging, but also use charging facilities that meet the national standards of other countries or regions for charging. This move has greatly enriched the charging network, further improved the charging convenience of car owners, enriched the charging outlets, and allowed car owners to charge more freely and casually. More importantly, the release of the charging adapter has further strengthened consumers' confidence in new energy vehicles, making the concept of green, environmentally friendly and people-friendly green travel deeply rooted in the hearts of the people. At the same time, the intelligentization, electrification, and high reliability requirements of new energy vehicle products are getting higher and higher. Therefore, the self-perception and judgment of a single system need to be more active and intelligent. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide an adapter with a temperature detection function. The utility model integrates a micro thermal cut-off module in the signal terminal adapter assembly to achieve the self-cut-off and protection function of the adapter, thereby avoiding damage and spontaneous combustion of the adapter caused by abnormal high temperature such as overload, thereby ensuring the safety of the vehicle.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: an adapter with a temperature detection function, including a mounting seat, a shell covering the outside of the mounting seat, and a signal terminal adapter assembly, a power terminal adapter assembly and a ground terminal assembly installed on the mounting seat, the signal terminal adapter assembly includes a female signal terminal, a male signal terminal and a printed circuit board, a micro thermal cut-off module is integrated on the printed circuit board, the female signal terminal, the male signal terminal and the micro thermal cut-off module integrated in the printed circuit board are connected in series; a thermal conductive pad is arranged between the micro thermal cut-off module and the power terminal adapter assembly for transferring the real-time temperature of the power terminal adapter assembly to the micro thermal cut-off module.

[0005] In some embodiments, the input interface and the output interface of the micro thermal cutoff module are conductively connected to the conductive ends of the female signal terminal and the male signal terminal respectively through a printed circuit board.

[0006] In some embodiments, the grounding terminal assembly includes a female grounding terminal and a male grounding terminal, the female grounding terminal and the male grounding terminal are integrally formed, and a through hole for the grounding terminal assembly to pass through is opened on the printed circuit board.

[0007] In some embodiments, the printed circuit board is provided with a plurality of mounting holes, and the female signal terminal and the male signal terminal are respectively conductively connected to the printed circuit board through conductive expansion pieces made of metal material;

[0008] An expansion hole is provided inside the conductive expansion piece for allowing the conductive expansion piece to expand outward after the conductive end of the female signal terminal / male signal terminal is installed. After the conductive expansion piece expands outward, its outer surface is squeezed and contacted with the inner wall of the installation hole, so that the conductive end of the female signal terminal / male signal terminal is conductively connected to the printed circuit board.

[0009] In some embodiments, the conductive expansion member includes an annular main body and a plurality of elastic sheets formed on the inner side of the main body, the plurality of elastic sheets together surround the expansion hole, and after the conductive end of the female signal terminal / male signal terminal is installed in the expansion hole, the plurality of elastic sheets are expanded outward so that the outer surfaces of the plurality of elastic sheets are squeezed into contact with the inner wall of the mounting hole.

[0010] In some embodiments, the inner diameter of the expansion hole is smaller than the outer diameter of the conductive end of the female signal terminal / male signal terminal, and the conductive end of the female signal terminal / male signal terminal is clamped by a plurality of elastic sheets after being inserted into the expansion hole.

[0011] In some embodiments, the main body is mounted on an end surface of the printed circuit board facing the male signal terminal.

[0012] In some embodiments, one end of the thermal pad is clamped between the micro thermal cutoff module and the power terminal adapter assembly, and the other end extends from the inner side of the printed circuit board and adheres to the outer surface of the power terminal adapter assembly.

[0013] In some embodiments, the thermal pad is connected to the micro thermal cut-off module and the power terminal adapter assembly by welding or bonding.

[0014] In some embodiments, the shell includes an adaptable first shell and a second shell, a lock shaft is provided on the first shell, a retaining ring is provided on the lock shaft along the circumference, and a reset spring is sleeved on the end of the lock shaft away from the first shell, and the second shell is provided with a locking hole for accommodating the reset spring and part of the lock shaft to enter its inner side, and a protrusion for clamping the retaining ring is provided on the inner wall of the locking hole.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model connects a micro thermal cut-off module in series in the signal terminal adapter assembly of the adapter, the micro thermal cut-off module obtains the real-time temperature of the power terminal adapter assembly through the thermal pad, and controls the on-off of the circuit where the signal terminal adapter assembly is located according to the real-time temperature signal, and then the charging gun or vehicle socket connected to the adapter obtains the on-off signal of the circuit where the signal terminal adapter assembly is located, and then cuts off the circuit where the power terminal adapter assembly is located, realizing the self-cut-off and protection function of the adapter, thereby avoiding damage and spontaneous combustion of the adapter due to abnormal high temperature such as overload, thereby ensuring the safety of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0017] Figure 1 This is an exploded schematic diagram of an adapter with a temperature detection function provided by the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the structure inside the adapter is shown;

[0019] Figure 3 for Figure 2 Schematic diagram of the structure at another angle;

[0020] Figure 4 for Figure 1 a cross-sectional view of the adapter shown;

[0021] Figure 5 for Figure 1 A schematic diagram of the structure of the signal terminal transfer assembly in the adapter shown;

[0022] Figure 6 This is a schematic diagram of the matching between the male signal terminal and the printed circuit board.

[0023] The following are marked in the figure:

[0024] 1. Signal terminal adapter assembly; 2. Shell; 21. First shell; 22. Second shell; 23. Lock shaft; 24. Stop ring; 25. Return spring; 26. Lock hole; 27. Protrusion; 3. Power terminal adapter assembly; 4. Ground terminal assembly; 41. Female ground terminal; 42. Male ground terminal; 5. Micro thermal cut-off module; 6. Thermal pad;

[0025] 101. Female signal terminal; 102. Male signal terminal;

[0026] 20, printed circuit board; 201, mounting hole; 202, through hole;

[0027] 30. Conductive expansion member; 301. Expansion hole; 302. Main body; 303. Elastic sheet;

[0028] 40, mounting seat; 401, first surface; 402, second surface; 403, mounting groove; 404, hook; 405, positioning column; 406, collapsed window;

[0029] 50, first conductive bar; 501, positioning hole; 502, terminal mounting hole; 503, avoidance area;

[0030] 60. second conductive bar;

[0031] 70. Female power terminal;

[0032] 80. Male power terminal. DETAILED DESCRIPTION

[0033] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention.

[0034] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present invention, its application, or uses.

[0035] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered as part of the specification.

[0036] In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.

[0037] An adapter with temperature detection function, such as Figure 1-Figure 4As shown, it includes a mounting base 40, a shell 2 covered on the outside of the mounting base 40, and a signal terminal adapter assembly 1, a power terminal adapter assembly 3 and a ground terminal assembly 4 installed on the mounting base 40. The signal terminal adapter assembly 1 includes a female signal terminal 101, a male signal terminal 102 and a printed circuit board 20. A micro thermal cut-off module 5 is integrated on the printed circuit board 20. The female signal terminal 101 and the male signal terminal 102 are connected in series with the micro thermal cut-off module 5 integrated in the printed circuit board 20; a thermal pad 6 is provided between the micro thermal cut-off module 5 and the power terminal adapter assembly 3 for transferring the real-time temperature of the power terminal adapter assembly 3 to the micro thermal cut-off module 5. The micro thermal cut-off module 5 is a TCO device commonly used in the art. The input interface and the output interface of the TCO device are conductively connected to the conductive ends of the female signal terminal 101 and the male signal terminal 102 respectively through the printed circuit board 20. Therefore, the utility model realizes the serial connection of the micro thermal cut-off module 5 in the signal terminal adapter assembly 1 of the adapter. The micro thermal cut-off module 5 obtains the real-time temperature of the power terminal adapter assembly through the thermal pad 6, and controls the on-off of the circuit where the signal terminal adapter assembly is located according to the real-time temperature signal. Then, after the charging gun or the vehicle socket connected to the adapter obtains the on-off signal of the circuit where the signal terminal adapter assembly is located, the circuit where the power terminal adapter assembly 3 is located is cut off, thereby realizing the self-cut-off and protection function of the adapter, thereby avoiding damage and spontaneous combustion of the adapter due to abnormal high temperature such as overload, thereby ensuring the safety of the vehicle.

[0038] In one embodiment, if Figure 2 As shown, one end of the thermal pad 6 is clamped between the micro thermal cut-off module 5 and the power terminal adapter assembly 3, and the other end extends from the inner side of the printed circuit board 20 and adheres to the outer surface of the power terminal adapter assembly 3, so that the heat dissipation of the power terminal adapter assembly 3 can be minimized while monitoring the real-time temperature of the power terminal adapter assembly 3, so as to avoid affecting the temperature of the power terminal adapter assembly 3. Furthermore, the thermal pad 6 is connected to the micro thermal cut-off module 5 and the power terminal adapter assembly 3 by welding or bonding to prevent it from falling off.

[0039] In one embodiment, if Figure 4 and Figure 5 As shown, the grounding terminal assembly 4 includes a female grounding terminal 41 and a male grounding terminal 42, and the female grounding terminal 41 and the male grounding terminal 42 are integrally formed. A through hole 202 for the grounding terminal assembly 4 to pass through is opened on the printed circuit board 20. Here, the female grounding terminal 41 and the male grounding terminal 42 are integrally formed, which can reduce the manufacturing cost of the grounding terminal assembly 4, facilitate the assembly of the grounding terminal assembly 4, and save labor costs.

[0040] In one embodiment, if Figure 4As shown, the shell 2 includes an adaptive first shell 21 and a second shell 22, a locking shaft 23 is provided on the first shell 21, a retaining ring 24 is provided on the locking shaft 23 along the circumferential direction, and a reset spring 25 is sleeved on the end of the locking shaft 23 away from the first shell 21, and a locking hole 26 for accommodating the reset spring 25 and part of the locking shaft 23 to enter its inner side is provided on the second shell 22, and a protrusion 27 for clamping the retaining ring 24 is provided on the inner wall of the locking hole 26. When assembling the shell 2, the first shell 21 carrying the locking shaft 23 and the reset spring 25 is buckled on the second shell 22, and by compressing the reset spring 25, the retaining ring 24 provided on the locking shaft 23 enters the locking hole 26 and is clamped to the inner side of the protrusion 27, thereby realizing the assembly connection between the first shell 21 and the second shell 22.

[0041] In one embodiment, if Figure 5 and Figure 6 As shown, the printed circuit board 20 is provided with a plurality of mounting holes 201 whose inner wall surfaces are provided with first conductive loops. It should be noted that the first conductive loop, which can be a conductive layer, is provided on the inner wall of the mounting hole 201 of the printed circuit board 20 to achieve conductive connection between the printed circuit board 20 and an external conductor. This is a relatively conventional technical means in the art and will not be described in detail here. The female signal terminal 101 and the male signal terminal 102 are conductively connected to the printed circuit board 20 through a conductive expansion member 30 made of a metal material respectively; the conductive expansion member 30 is provided with an expansion hole 301 inside which allows the conductive expansion member 30 to expand outward after the conductive end of the female signal terminal 101 / male signal terminal 102 is installed. After the conductive expansion member 30 expands outward, its outer surface is squeezed and contacted with the inner wall of the mounting hole 201, thereby achieving conductive connection between the conductive end of the female signal terminal 101 / male signal terminal 102 and the printed circuit board 20. Compared with existing connection methods such as welding wire connection, crimping wire connection and stamping spring terminal connection, the connection method is simple and low in cost.

[0042] In one embodiment, if Figure 6 As shown, the conductive expansion member 30 includes a ring-shaped main body 302 and a plurality of elastic sheets 303 formed inside the main body 302. The plurality of elastic sheets 303 together surround an expansion hole 301. After the conductive ends of the female signal terminal 101 / male signal terminal 102 are inserted into the expansion hole 301, the plurality of elastic sheets 303 are expanded outward, so that the outer surfaces of the plurality of elastic sheets 303 are pressed and contacted with the inner wall of the mounting hole 201. Furthermore, the main body 302 and the plurality of elastic sheets 303 are integrally stamped and formed, so that the strength of the plurality of elastic sheets 303 can be improved and the manufacturing cost of the conductive expansion member 30 can be reduced.

[0043] In one embodiment, the inner diameter of the expansion hole 301 is smaller than the outer diameter of the conductive end of the female signal terminal 101 / male signal terminal 102. After the conductive end of the female signal terminal 101 / male signal terminal 102 is inserted into the expansion hole 301, it is clamped by a plurality of elastic sheets 303, thereby effectively ensuring the stability of the structure after the conductive end 103 of the signal terminal is installed, and preventing the conductive end 103 of the signal terminal from having poor contact due to shaking.

[0044] In one embodiment, if Figure 5 As shown, the main body 302 is mounted on the end surface of the printed circuit board 20 facing the male signal terminal 102. Furthermore, a second conductive loop (not shown in the figure) conductively connected to the main body 302 can be provided on the end surface of the printed circuit board 20, and the main body 302 is conductively connected to the printed circuit board 20 through the second conductive loop. At the same time, in order to further ensure a stable electrical connection between the conductive end 103 of the signal terminal and the printed circuit board 20, the first conductive loop and the second conductive loop can also be provided as one.

[0045] The utility model further describes the specific structure of the power terminal transfer structure: Figure 1-Figure 4 As shown, the power terminal transfer structure includes a mounting seat 40, a first conductive bar 50 and a second conductive bar 60 respectively mounted on the first surface 401 and the second surface 402 of the mounting seat 10, the first conductive bar 50 and the second conductive bar 60 have the same structure, and the projection mirror image of the first conductive bar 50 and the second conductive bar 60 on the first surface 401 or the second surface 402 of the mounting seat 40 is set to improve the versatility of the first conductive bar 50 and the second conductive bar 60, so as to reduce the maintenance cost. The two ends of the first conductive bar 50 and the second conductive bar 60 are respectively electrically connected to the corresponding power terminals; the first conductive bar 50 and the second conductive bar 60 are both in the shape of a zigzag strip, and the two are arranged crosswise to form an avoidance area for the signal terminal transfer structure and other structures to pass through, so that on the premise of realizing the transfer between power terminals defined by different charging standards, it also has a reasonable layout, thereby being able to reduce the size of the adapter using the power terminal transfer structure.

[0046] In one embodiment, if Figure 3As shown, the first surface 401 and the second surface 402 of the mounting seat 40 are both formed with mounting grooves 403 for accommodating the first conductive bar 50 and the second conductive bar 60, and the side walls of the mounting grooves 403 are formed with a plurality of hooks 404. After the first conductive bar 50 and the second conductive bar 60 are installed in the corresponding mounting grooves 403, the hooks 404 are used to achieve fixed connection, and no other fixing parts are required to achieve fixed connection between the first conductive bar 50 and the second conductive bar 60, which can reduce the manufacturing cost of the adapter using the power terminal adapter structure. At the same time, in order to facilitate the removal of the first conductive bar 50 and the second conductive bar 60, the side walls of the mounting grooves 403 are provided with collapsed windows 406. When removing the first conductive bar 50 and the second conductive bar 60, the first conductive bar 50 and the second conductive bar 60 can be lifted out from the collapsed windows 406 with a sharp sheet-like object.

[0047] Furthermore, if Figure 3 As shown, at least one positioning column 405 is formed on the bottom surface of the installation groove 403, and positioning holes 501 corresponding to the positions of the positioning columns 405 are provided on the first conductive bar 50 and the second conductive bar 60. When installing the first conductive bar 50 and the second conductive bar 60, positioning is achieved through the positioning holes 501 provided on both and the positioning columns 405 formed on the bottom surface of the installation groove 403, so as to improve the installation accuracy of the first conductive bar 50 and the second conductive bar 60.

[0048] In one embodiment, if Figure 3 As shown, both ends of the first conductive bar 50 and the second conductive bar 60 are provided with terminal mounting holes 502 for mounting corresponding power terminals. The tail of the power terminal has a conductive mounting portion, and the power terminal is sleeved inside the terminal mounting hole 502 through the conductive mounting portion.

[0049] Specifically, Figure 3 As shown, the power terminal includes a female power terminal 70 and a male power terminal 80, and the female power terminal 70 and the male power terminal 80 are respectively installed at the opposite ends of the first conductive bar 50 and the second conductive bar 60, and the female power terminal 70 and the male power terminal 80 are respectively located on the opposite sides of the mounting base 40, so that the power terminals defined by different charging standards can be switched.

[0050] In one embodiment, the cross-sectional area of ​​the first conductive bar 50 and the second conductive bar 60 at the position where the positioning hole 501 and / or the terminal mounting hole 502 is opened is larger than the cross-sectional area at other positions to increase the current carrying capacity of the first conductive bar 50 and the second conductive bar 60.

[0051] Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. An adapter with a temperature detection function, comprising a mounting seat, a housing arranged outside the mounting seat, and a signal terminal adapter assembly, a power terminal adapter assembly and a ground terminal assembly installed on the mounting seat, characterized in that: The signal terminal adapter assembly includes a female signal terminal, a male signal terminal and a printed circuit board, a micro thermal cut-off module is integrated on the printed circuit board, the female signal terminal, the male signal terminal and the micro thermal cut-off module integrated in the printed circuit board are connected in series; a thermal pad is provided between the micro thermal cut-off module and the power terminal adapter assembly for transferring the real-time temperature of the power terminal adapter assembly to the micro thermal cut-off module.

2. The adapter with temperature detection function according to claim 1, characterized in that: The input interface and the output interface of the micro thermal cut-off module are respectively connected to the conductive ends of the female signal terminal and the male signal terminal through the printed circuit board.

3. The adapter with temperature detection function according to claim 1, characterized in that: The grounding terminal assembly comprises a female grounding terminal and a male grounding terminal, which are integrally formed with each other, and a through hole for the grounding terminal assembly to pass through is provided on the printed circuit board.

4. The adapter with temperature detection function according to claim 1, characterized in that: The printed circuit board is provided with a plurality of mounting holes, and the female signal terminal and the male signal terminal are respectively conductively connected to the printed circuit board through conductive expansion pieces made of metal materials; An expansion hole is provided inside the conductive expansion piece for allowing the conductive expansion piece to expand outward after the conductive end of the female signal terminal / male signal terminal is installed. After the conductive expansion piece expands outward, its outer surface is squeezed and contacted with the inner wall of the installation hole, so that the conductive end of the female signal terminal / male signal terminal is conductively connected to the printed circuit board.

5. The adapter with temperature detection function according to claim 4, characterized in that: The conductive expansion member includes a ring-shaped main body and a plurality of elastic sheets formed on the inner side of the main body, and the plurality of elastic sheets together surround the expansion hole. After the conductive end of the female signal terminal / male signal terminal is installed in the expansion hole, the plurality of elastic sheets are expanded outward so that the outer surfaces of the plurality of elastic sheets are in compression contact with the inner wall of the mounting hole.

6. The adapter with temperature detection function according to claim 5, characterized in that: The inner diameter of the expansion hole is smaller than the outer diameter of the conductive end of the female signal terminal / male signal terminal. After the conductive end of the female signal terminal / male signal terminal is inserted into the expansion hole, it is clamped by a plurality of elastic sheets.

7. The adapter with temperature detection function according to claim 5, characterized in that: The main body is mounted on one end surface of the printed circuit board facing the male signal terminal.

8. The adapter with temperature detection function according to claim 1, characterized in that: One end of the thermal pad is clamped between the micro thermal cut-off module and the power terminal adapter assembly, and the other end extends from the inner side of the printed circuit board and adheres to the outer surface of the power terminal adapter assembly.

9. The adapter with temperature detection function according to claim 1, characterized in that: The thermal pad is connected to the micro thermal cut-off module and the power terminal adapter assembly by welding or bonding.

10. The adapter with temperature detection function according to claim 1, characterized in that: The shell includes an adaptable first shell and a second shell, a lock shaft is provided on the first shell, a retaining ring is provided on the lock shaft along the circumference, and a reset spring is sleeved on the end of the lock shaft away from the first shell, and a locking hole for accommodating the reset spring and part of the lock shaft to enter its inner side is provided on the second shell, and a protrusion for clamping the retaining ring is provided on the inner wall of the locking hole.

Images