Charging socket with novel temperature monitoring structure

Abstract

The utility model discloses a charging socket with a novel temperature monitoring structure. The charging socket comprises a temperature monitoring part arranged in a socket body; a primary injection molding substrate of the temperature monitoring part is provided with a plurality of mounting shaft holes, and the front end surface is provided with a plurality of detection grooves; a heat conducting hole at the lower end of the heat conducting sheet is exposed in the mounting shaft hole, and a conduction end at the upper end of the heat conducting sheet is attached to the ultrathin wall of the detection groove; the patch temperature sensor is welded on the rear end face of the PCBA board, and the gap is located in the detection groove; the heat conduction filling piece is filled in the detection groove and wraps the patch temperature sensor; the PCBA board is connected with the front end of the primary injection molding substrate and is electrically connected with the control unit; the power jack member is provided with a shaft sleeve heat conduction hole with equal diameter, and the heat conduction sheet transmits real-time temperature information to the patch temperature sensor, and the real-time temperature information is transmitted to the control unit through the PCBA board. The temperature sensor has the advantages of being simple in assembly, short in time consumption, high in temperature detection precision and small in data lag.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of charging socket, especially the charging socket with novel temperature monitoring structure. BACKGROUND

[0002] At present, new energy electric vehicles develop rapidly. Electric vehicles often use DC charging sockets or AC charging sockets with high power. When the socket is used, the temperature of the power terminal will rise rapidly. If the temperature is too high, the electronic components and cables connected to the socket will fail or burn. Therefore, it is necessary to monitor the real-time temperature of the socket in operation within the safe temperature. At present, charging sockets often use built-in water dropper temperature sensors and heat-conducting silicone temperature sensors to detect temperature. The defects are as follows: first, the above-mentioned temperature sensors need complex structure and more associated parts for fixation, which is complex to assemble, consumes more working hours, and has low assembly efficiency, and requires high cost; second, the temperature detected by the above-mentioned sensor has actual deviation and hysteresis, and there is a risk of monitoring failure. SUMMARY

[0003] In order to solve one or more of the above problems, the utility model provides a charging socket with novel temperature monitoring structure.

[0004] According to one aspect of the utility model, the charging socket with novel temperature monitoring structure comprises a socket body and a temperature monitoring part arranged in the socket body.

[0005] The temperature monitoring part comprises a one-shot injection substrate, a PCBA board, and a plurality of heat-conducting sheets, patch temperature sensors, and heat-conducting filling parts.

[0006] The one-shot injection substrate is provided with a plurality of mounting shaft holes and a plurality of detection grooves on the front end face. Each detection groove corresponds to a mounting shaft hole. The vertical wall of the detection groove is an ultrathin wall.

[0007] The plurality of heat-conducting sheets are integrally injection molded in the one-shot injection substrate. The lower end heat-conducting holes are exposed in the mounting shaft holes, and the upper end conducting ends are attached to the ultrathin wall.

[0008] The patch temperature sensors are welded to the rear end face of the PCBA board, and the gap is located in the detection groove.

[0009] The heat-conducting filling parts fill the detection grooves and wrap the patch temperature sensors.

[0010] The PCBA board is fixedly connected to the front end of the one-shot injection substrate and electrically connected to the control unit.

[0011] The power jack of the socket body is sleeved with the mounting shaft hole and the equal-diameter shaft sleeve heat-conducting hole. When the power jack is connected to the power terminal for charging, the heat-conducting sheet transmits the real-time temperature information to the patch temperature sensor, which is transmitted to the control unit through the PCBA board.

[0012] In some embodiments, the heat-conducting filling is a resilient heat-conducting material pre-filled in the detection groove, and the patch temperature sensor is pressed into and wrapped in the resilient heat-conducting material.

[0013] In some embodiments, the resilient heat-conducting material is a heat-conducting silicone grease.

[0014] In some embodiments, the detection groove is a rectangular groove, and the inner groove wall of the rectangular groove is an ultra-thin wall; the front end surface of the patch temperature sensor is attached to or connected to the inner groove wall with a small gap.

[0015] Or the thickness of the ultra-thin wall is 0-0.5mm.

[0016] In some embodiments, the lower end of the heat-conducting sheet is a ring body, and the upper end forms a conductive end in the shape of an isosceles trapezoid, and the center heat-conducting hole of the ring body is sleeved on the outer wall of the power jack.

[0017] In some embodiments, the upper end of the PCBA board is connected to a plurality of multi-hole signal jacks, and the hole end of the multi-hole signal jack is exposed outside the front mounting plate.

[0018] In some embodiments, when the charging socket is an alternating current socket, the power jack, the heat-conducting sheet, and the patch temperature sensor are four.

[0019] When the charging socket is a direct current socket, the power jack, the heat-conducting sheet, and the patch temperature sensor are two.

[0020] In some embodiments, the plurality of plug-in holes of the PCBA board are sleeved with the elastic pin columns at the front end of the one-time injection molded substrate.

[0021] Or the PCBA board is positioned in the positioning groove at the front end of the one-time injection molded substrate.

[0022] In some embodiments, the socket body includes a plurality of power jacks and a rear mounting plate and a front mounting plate connected by threads; the one-time injection molded substrate of the temperature monitoring part is detachably connected or secondarily injection molded in front of the front mounting plate; the power jack is fixedly connected to the front mounting plate, the temperature monitoring part, and the rear mounting plate.

[0023] In some embodiments, the receiving groove in the middle of the front side wall of the front mounting plate has the same contour size as the one-time injection molded substrate, and the one-time injection molded substrate is located in the receiving groove.

[0024] The advantages of this charging socket with a novel temperature monitoring structure are as follows: First, the temperature monitoring unit is assembled as a single unit, eliminating the need for manual assembly of individual components. This results in a simple structure, fewer related parts, a simplified assembly process, less labor time, higher assembly efficiency, and a significant reduction in overall cost. Second, the detection holes of the heat-conducting sheet and the power terminals are designed with equal-diameter bushings for contact, further improving detection accuracy and reducing data lag. Third, the heat-conducting sheet and the surface-mount temperature sensor achieve precise fit through the detection slot and are fully connected through the thermally conductive filler, with a small or even zero gap between them. This greatly reduces the difference between the real-time temperature of the power terminals and the actual temperature of the temperature sensor, resulting in high detection accuracy. Fourth, the surface-mount temperature sensor features high measurement accuracy, fast response speed, and convenient installation, further improving temperature detection accuracy and minimizing data lag. Attached Figure Description

[0025] Figure 1 This is a three-dimensional exploded view of a charging socket with a novel temperature monitoring structure according to one embodiment of the present invention.

[0026] Figure 2 for Figure 1 A cross-sectional schematic diagram of the temperature monitoring unit shown.

[0027] Figure 3 for Figure 2 A partially enlarged schematic diagram of the temperature monitoring unit is shown below;

[0028] Figure 4 for Figure 2 A three-dimensional exploded view of the temperature detection unit shown.

[0029] Figure 5 for Figure 4 The diagram shows a three-dimensional representation of the injection-molded substrates.

[0030] Temperature Monitoring Department 01;

[0031] One-time injection molded substrate 1, mounting shaft hole 10, detection groove 11, ultra-thin wall 12, elastic pin 13;

[0032] Heat-conducting plate 2, ring 20, heat-conducting hole 21, conduction end 22;

[0033] 3. Surface mount temperature sensor; 4. Thermally conductive filler; 5. PCBA board; 50. Connecting hole;

[0034] Multi-port signal jack 6;

[0035] Socket body 00, rear mounting plate 02, power socket 03, front mounting plate 04, receiving groove 040, rectangular through hole 041. Detailed Implementation

[0036] The utility model makes further detailed description in connection with the drawings. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "inner" and "outer" refer to the directions towards or away from the geometric center of a particular component.

[0037] Figures 1 to 5 The charging socket with the novel temperature monitoring structure according to an embodiment of the utility model is schematically shown as shown in the figure, and the charging socket with the novel temperature monitoring structure comprises a socket body 00 and a temperature monitoring part 01 arranged in the socket body 00.

[0038] The temperature monitoring part 01 comprises a one-time injection molded substrate 1, a PCBA board 5, and a plurality of heat-conducting sheets 2, patch temperature sensors 3, and heat-conducting filling parts 4.

[0039] The one-time injection molded substrate 1 is provided with a plurality of mounting shaft holes 10 and a plurality of detection grooves 11 on the front end face, with each detection groove 11 corresponding to one mounting shaft hole 10, and the vertical wall of the detection groove 11 being an ultrathin wall 12. The thickness of the ultrathin wall 12 is preferably 0-0.5 mm.

[0040] The plurality of heat-conducting sheets 2 are integrally injection molded in the one-time injection molded substrate 1, with the lower end heat-conducting holes 21 exposed in the mounting shaft holes 10 and the upper end conducting ends 22 adhering to the ultrathin wall 12.

[0041] The patch temperature sensors 3 are welded to the rear end face of the PCBA board 5 with the gap located in the detection grooves 11.

[0042] The heat-conducting filling parts 4 fill the detection grooves 11 and wrap the patch temperature sensors 3. In one preferred mode, the heat-conducting filling parts 4 are elastic heat-conducting materials pre-filled in the detection grooves 11, the patch temperature sensors 3 are quickly pressed into the elastic heat-conducting materials and wrapped in the elastic heat-conducting materials, and the elastic heat-conducting materials are heat-conducting silicone grease.

[0043] The PCBA board 5 is fixedly connected to the front end of the one-time injection molded substrate 1 and electrically connected to a control unit. The PCBA board is a printed circuit board. The control unit can be a vehicle-mounted controller or a PLC control module.

[0044] The power jack part 03 of the socket body 00 penetrates the mounting shaft hole 10 and the equal-diameter shaft sleeve heat-conducting hole 21, and when the power jack part 03 is plugged into the power terminal for charging, the heat-conducting sheet 2 transmits real-time temperature information to the patch temperature sensor 3, which is transmitted to the control unit through the PCBA board 5.

[0045] The charging socket with the novel temperature monitoring structure is integrally injection molded on the sequentially injection molded substrate 1 through the heat conduction sheet 2, then the temperature monitoring part 01 is installed in the socket body 00 as a whole structure by wrapping the patch temperature sensor 3 on the PCBA board 5 with the heat conduction filling piece 4 in the detection groove 11, the detection hole 21 of the heat conduction sheet 2 is directly connected to the outer wall of the power jack piece 03, and the distance between the heat conduction sheet 2 and the patch temperature sensor 3 is the ultra-thin wall 12, so that when the power jack piece 03 generates heat, the heat can be transmitted to the heat conduction sheet 2, the heat conduction sheet 2 transmits the heat to the patch temperature sensor 3 through the ultra-thin wall 12, and the patch temperature sensor 3 transmits the temperature information to the PCBA 5 and the control end of the electric vehicle, so as to complete the real-time temperature monitoring of the power jack piece 03, which has the beneficial effects that: first, the temperature monitoring part 01 is assembled as a whole, without manual scattered assembly, with simple structure, fewer associated parts, simple assembly process, less time-consuming, high assembly efficiency, and effective reduction of overall cost; second, the detection hole of the heat conduction sheet 2 and the power terminal 03 are arranged in contact with the equal-diameter shaft sleeve, which can further improve the detection accuracy and reduce data lag; third, the heat conduction sheet 2 and the patch temperature sensor 3 are precisely matched through the detection groove 11, and are fully connected through the heat conduction filling piece 4, with small or even zero gap therebetween, which greatly reduces the difference between the real-time temperature of the power terminal and the actual temperature of the temperature sensor, with high detection accuracy; fourth, the patch temperature sensor 3 has the characteristics of high measurement accuracy, fast corresponding speed and convenient installation, which further improves the accuracy of temperature detection and reduces data lag.

[0046] Preferably, the detection groove 11 is a rectangular groove, the inner groove wall of the rectangular groove is the ultra-thin wall 12, and the front end face of the patch temperature sensor 3 is attached to or connected to the inner groove wall with a small gap.

[0047] Preferably, the lower end of the heat conduction sheet 2 is a ring body 20, and the upper end forms a conductive end 22 in the shape of an isosceles trapezoid, and the central heat conduction hole 21 of the ring body 20 is sleeved with the middle wall of the power jack piece 03.

[0048] Further, the upper end of the PCBA board 5 is connected to a plurality of multi-hole signal jacks 6, and the multi-hole signal jacks 6 are sleeved and connected to the hole end of the rectangular through hole 041 of the front mounting plate 04, and the hole end of the rectangular through hole 041 of the front mounting plate 04 is exposed outside the front mounting plate 04.

[0049] Preferably, when the charging socket is an alternating current socket, the power jack piece 03, the heat conduction sheet 2 and the patch temperature sensor 3 are four.

[0050] When the charging socket is a direct current socket, the power jack 03, the heat conduction sheet 2 and the patch temperature sensor 3 are two. The beneficial effect is that the structure is suitable for various charging sockets and has a wide application range.

[0051] Further, the PCBA board 5 is symmetrically provided with a plurality of plug-in holes 50 which are connected with the elastic pin columns 13 at the front end of the one-time injection molded substrate 1. The beneficial effect is that the setting facilitates the disassembly and assembly of the PCBA board 5, and the elastic interference fit connection will not damage the PCBA board 5 during assembly.

[0052] Preferably, the PCBA board 5 is positioned in the positioning groove at the front end of the one-time injection molded substrate 1. The beneficial effect is that the positioning groove setting facilitates the assembly of the PCBA board 5 and improves the assembly accuracy.

[0053] Further, the socket body 00 includes a plurality of power jack 03 and a rear mounting plate 02 and a front mounting plate 04 connected by threads; the one-time injection molded substrate 1 of the temperature monitoring part 01 is detachably connected or secondarily injection molded in front of the front mounting plate 04; the power jack 03 is fixedly connected to the front mounting plate 04, the temperature monitoring part 01 and the rear mounting plate 02. The beneficial effect is that the connection structure is simple, convenient to assemble and has high assembly efficiency.

[0054] Preferably, the socket body 00 is also provided with a signal terminal and a PE terminal.

[0055] Further, the receiving groove 040 in the middle of the front side wall of the front mounting plate 04 is the same as the contour size of the one-time injection molded substrate 1, and the one-time injection molded substrate 1 is located in the receiving groove 040. The beneficial effect is that the groove setting facilitates the assembly of the temperature monitoring part 01 and improves the installation and positioning accuracy.

[0056] The above only describes some embodiments of the present application. For those skilled in the art, without departing from the inventive concept, a number of modifications and improvements can be made, which are all within the protection scope of the present application.

Claims

1. A charging socket with a new temperature monitoring structure, characterized in that, It includes: socket body (00) and temperature monitoring part (01) arranged in socket body (00); The temperature monitoring part (01) comprises a one-off injection molded substrate (1), a PCBA board (5), and a plurality of heat-conducting sheets (2), patch temperature sensors (3), and heat-conducting fillers (4); The one-off injection molded substrate (1) is provided with a plurality of mounting shaft holes (10) and a front end face provided with a plurality of detection grooves (11), each detection groove (11) corresponding to one mounting shaft hole (10), and the vertical wall of the detection groove (11) being an ultrathin wall (12); A plurality of heat-conducting sheets (2) are integrally injection molded in the one-off injection molded substrate (1), with lower end heat-conducting holes (21) exposed in the mounting shaft hole (10) and upper end conducting ends (22) adhered to the ultrathin wall (12); The patch temperature sensor (3) is welded to the rear end face of the PCBA board (5) with a gap in the detection groove (11); The heat-conducting filler (4) fills the detection groove (11) and wraps the patch temperature sensor (3); The PCBA board (5) is fixedly connected to the front end of the one-off injection molded substrate (1) and electrically connected to the control unit; The power jack (03) of the socket body (00) penetrates the mounting shaft hole (10) and the equal-diameter shaft sleeve heat-conducting hole (21), and when the power jack (03) is inserted into the power terminal for charging, the heat-conducting sheet (2) transmits real-time temperature information to the patch temperature sensor (3), which is transmitted to the control unit through the PCBA board (5).

2. The charging socket with a new temperature monitoring structure according to claim 1, characterized in that, The heat-conducting filler (4) is an elastic heat-conducting material pre-filled in the detection groove (11), and the patch temperature sensor (3) is quickly pressed into the elastic heat-conducting material and wrapped in the elastic heat-conducting material.

3. The charging socket with a new temperature monitoring structure according to claim 2, characterized in that, The elastic heat-conducting material is heat-conducting silicone grease.

4. The charging socket with a new temperature monitoring structure according to claim 1, characterized in that, The detection groove (11) is a rectangular groove, the inner groove wall of the rectangular groove is an ultrathin wall (12), and the front end face of the patch temperature sensor (3) is adhered to or connected to the inner groove wall with a small gap. Or the thickness of the ultrathin wall (12) is 0-0.5mm.

5. The charging socket with a new temperature monitoring structure according to claim 1, characterized in that, The lower end of the heat-conducting sheet (2) is a ring body (20), and the upper end forms an isosceles trapezoidal conducting end (22), and the center heat-conducting hole (21) of the ring body (20) is sleeved on the middle outer wall of the power jack (03).

6. The charging socket with a new temperature monitoring structure according to claim 1, characterized in that, The PCBA board (5) is connected to a plurality of multi-hole signal jacks (6) at the upper end, the hole end of the multi-hole signal jack (6) is exposed outside the front mounting plate (04) by sleeving connection with the rectangular through hole (041) of the front mounting plate (04).

7. The charging socket with a new temperature monitoring structure according to claim 1, characterized in that, When the charging socket is an alternating current socket, the power jack (03), heat-conducting sheet (2), and patch temperature sensor (3) are four in number. When the charging socket is a direct current socket, the power jack (03), heat-conducting sheet (2), and patch temperature sensor (3) are two in number.

8. The charging socket with new temperature monitoring structure according to claim 1, characterized in that, The PCBA board (5) is symmetrically provided with a plurality of plug-in holes (50) sleeved with elastic pin columns (13) at the front end of the one-off injection molded substrate (1); Or the PCBA board (5) is positioned in the positioning groove at the front end of the one-off injection molded substrate (1).

9. The charging socket with a new temperature monitoring structure according to any one of claims 1 to 8, characterized in that, The socket body (00) comprises several power jack parts (03), a rear mounting plate (02) and a front mounting plate (04) connected by threads; a primary injection molded substrate (1) of the temperature monitoring part (01) is detachably connected or secondarily injection molded in front of the front mounting plate (04); the power jack part (03) is fixedly connected to the front mounting plate (04), the temperature monitoring part (01) and the rear mounting plate (02) through sleeving.

10. The charging socket with a new temperature monitoring structure according to claim 9, characterized in that, The containing groove (040) in the middle of the front side wall of the front mounting plate (04) has the same contour size as the primary injection molded substrate (1), and the primary injection molded substrate (1) is located in the containing groove (040).

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