Temperature detection device of electric vehicle adapter

Abstract

The invention relates to the technical field of automobile charging, in particular to a temperature detection device of an electric automobile adapter. According to the specific technical scheme, the temperature detection device of the electric vehicle adapter comprises a fixing shell with two open ends, a supporting plate is arranged at the inner bottom of the fixing shell, a pressing plate corresponding to the supporting plate is arranged at the inner top of the fixing shell, the distance between the pressing plate and the supporting plate is adjustable, a plurality of patch type temperature sensors are distributed on the supporting plate and the pressing plate, and the patch type temperature sensors are arranged on the fixing shell. The temperature sensor is electrically connected with the controller, the controller performs information interaction with the charging pile, and a battery piece is arranged at the outer bottom of the fixing shell. According to the invention, by arranging the plurality of temperature sensors, temperature detection can be carried out on different positions of the adapter, so that the comprehensiveness and accuracy of temperature detection on the adapter are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle charging, and particularly to a temperature detection device for an electric vehicle adapter. Background Art

[0002] As a bridge, the adapter is a device that connects an electric vehicle to a charging pile or other power sources to achieve the transmission of electrical energy, provide charging services for the vehicle, and ensure that the vehicle can be charged normally and extend the battery life. However, the adapter generates heat during operation, and excessive temperature may lead to performance degradation, shortened lifespan, or even safety accidents. Therefore, it is very necessary to detect the temperature of the adapter in real time.

[0003] Temperature detection can timely detect abnormal temperature conditions of the adapter, such as overheating, etc. At the same time, it can monitor the temperature change of the adapter in real time and provide accurate and reliable temperature data. When the temperature of the adapter exceeds the set safety threshold, an alarm or warning signal can be issued, which helps to take relevant measures to avoid the occurrence of safety accidents.

[0004] In the prior art, temperature sensors are mostly used to detect the temperature of the adapter. However, the arrangement position and quantity of the sensors will affect the accuracy and comprehensiveness of temperature detection, and the sizes of adapters for different electric vehicles are inconsistent. Therefore, there is an urgent need for a device with high adaptability to detect the temperature of adapters of different sizes. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a temperature detection device for an electric vehicle adapter.

[0006] To achieve the above objectives, the present invention is realized through the following technical solutions: The present invention discloses a temperature detection device for an electric vehicle adapter, including a fixed shell with openings at both ends. A support plate is provided at the inner bottom of the fixed shell, and a pressing plate corresponding to the support plate is provided at the inner top. The distance between the pressing plate and the support plate is adjustable. A plurality of patch temperature sensors are arranged on the support plate and the pressing plate. The temperature sensors are electrically connected to a controller, and the controller exchanges information with the charging pile. A battery piece is provided at the outer bottom of the fixed shell.

[0007] Preferably, the support plate is fixed to the inner bottom of the fixed shell through a plurality of first springs.

[0008] Preferably, the pressing plate is fixed to the inner top of the fixed shell through a plurality of second springs. An adjusting mechanism for adjusting the distance between the pressing plate and the support plate is provided at the top of the pressing plate. The adjusting mechanism extends outside the fixed shell, so that in the initial state, the second springs are in a compressed state.

[0009] Preferably, the adjusting mechanism includes a fixed column disposed at the center of the top of the pressing plate and spaced apart from it. A cavity is axially formed at the bottom of the fixed column, and a threaded groove is axially formed at the top. A telescopic sleeve is disposed in the cavity, and the other end of the telescopic sleeve is fixed to the pressing plate. The fixed column extends out of the top of the fixed shell and is sleeved with a fixed cylinder. A stud is threadedly connected in the threaded groove, and the stud extends out of the threaded groove and the fixed cylinder in sequence and is fixed to the fixed cylinder through a bearing.

[0010] Preferably, a through hole for the fixed column to pass through is provided at the top of the fixed shell. A sliding groove is vertically provided on the side wall of the through hole, and a sliding strip that slides along the sliding groove is axially provided on the outer wall of the fixed column.

[0011] Preferably, a retaining ring is provided on the circumference of the top end of the fixed column, and the outer diameter of the retaining ring is larger than the aperture of the through hole.

[0012] Preferably, when a temperature sensor is provided at the center of the pressing plate, its wiring terminal passes through the pressing plate and is placed in a protective sleeve fixed to the top of the pressing plate. The protective sleeve is located in the cavity. One end of the telescopic sleeve is fixed to the top of the protective sleeve, and a first notch for the cable of the temperature sensor to pass through is correspondingly provided on the side wall of the protective sleeve and the side wall of the cavity.

[0013] Preferably, one side of the fixed shell is a side door connected by rotation. A plurality of heat dissipation holes are provided on the side door. A second notch is provided at the bottom of the side door. A fixed rod corresponding to the second notch is provided on one side of the bottom plate of the fixed shell, and a locking sleeve is sleeved on the fixed rod.

[0014] Preferably, a suction cup is detachably provided on the side of the fixed shell opposite to the side door. A fan communicated with the inside of the fixed shell is provided beside the suction cup. The fan is connected to a controller. A support rod is provided on the side wall of the support plate, and the support rod is correspondingly provided with the side door.

[0015] Preferably, a slider with a "T" - shaped cross - section is provided on the connecting side of the suction cup and the fixed shell. A channel adapted to the slider is provided on the side wall of the fixed shell, and one end of the channel is open - ended; a ventilation opening is provided on the side wall of the fixed shell, and an annular frame is provided outside the ventilation opening. The fan is fixed on the annular frame.

[0016] The present invention has the following beneficial effects: The present invention is provided with a fixed shell having openings at both ends, and a support plate and a pressing plate corresponding to each other up and down are arranged inside the fixed shell. The support plate is connected and supported by a first spring, and the pressing plate can move up and down through the cooperation of a fixed column and a stud. At the same time, a second spring in a compressed state is arranged between the fixed shell and the pressing plate. When the stud drives the fixed column to move towards the inside of the fixed shell, the second spring presses the pressing plate towards the adapter, and finally the clamping of the adapter is elastically fixed, which avoids damage to the adapter to a certain extent. At the same time, the up and down movement of the pressing plate can adapt to adapters of different sizes, making its application range wider. Moreover, a plurality of temperature sensors are arranged on the pressing plate and the support plate, which can detect the temperature of different positions of the adapter, thereby improving the comprehensiveness and accuracy of temperature detection of the adapter. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is Figure 1 view A-A in Figure 3 is a schematic structural diagram of the fixed column; Figure 4 is a schematic diagram of the setting situation of the fixed column and the fixed shell (in the top view direction); Figure 5 is Figure 1 left view of Figure 6 is a schematic structural diagram of the fan on the fixed shell; In the figure: fixed shell 1, support plate 2, pressing plate 3, temperature sensor 4, controller 5, battery cell 6, first spring 7, second spring 8, fixed column 9, cavity 10, threaded groove 11, telescopic sleeve 12, fixed cylinder 13, stud 14, through hole 15, slide bar 16, retaining ring 17, protective sleeve 18, first notch 19, side door 20, heat dissipation hole 21, second notch 22, fixed rod 23, locking sleeve 24, suction cup 25, fan 26, support rod 27, slider 28, channel 29, ventilation port 30, annular frame 31. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0019] If not specifically specified, the technical means used in the implementation examples are conventional means well known to those skilled in the art.

[0020] Refer toFigures 1-6 , the present invention discloses a temperature detection device for an electric vehicle adapter, including a fixed shell 1 with openings at both ends. A support plate 2 is arranged at the inner bottom of the fixed shell 1, and a pressing plate 3 corresponding to the support plate 2 is arranged at the inner top. The support plate and the pressing plate can have the same size and shape, both are made of plastic material and are made of flame-retardant material. The distance between the pressing plate 3 and the support plate 2 is adjustable to fix adapters of different sizes. A plurality of patch temperature sensors 4 are arranged on the support plate 2 and the pressing plate 3. The surface of the temperature sensor is flush with the surfaces of the support plate and the pressing plate. The number and arrangement method can be set according to needs. The temperature sensor 4 is electrically connected to a controller 5, and the temperature of the adapter is monitored through the controller. The controller is arranged on the inner wall of the fixed shell. The controller 5 conducts information interaction with the charging pile, such as establishing a connection through Bluetooth, WIFI, cable, etc. to achieve information interaction. The charging pile is connected to the vehicle through a CAN line, and information interaction is realized while charging. The temperature information detected by the controller is fed back to the charging pile, and then the charging pile displays and feeds it back to the vehicle owner. This part is the built-in function of the charging pile and is the prior art. The vehicle owner can query the vehicle charging situation and the temperature situation of the adapter through the mobile phone. A battery piece 6 is arranged at the outer bottom of the fixed shell 1. The battery piece is arranged inside the outer shell at the bottom of the fixed shell. The battery piece supplies power to the controller and the temperature sensor. The battery piece is a rechargeable battery. A charging seat is arranged in the charging pile, and a conductive piece is arranged on the outer shell and connected to the battery piece. The fixed shell is directly placed on the charging seat, and when the conductive piece contacts the interface on the charging seat, charging can be realized. The charging of the battery piece is the prior art and will not be elaborated here.

[0021] Further, the support plate 2 is fixed to the inner bottom of the fixed shell 1 through a plurality of first springs 7. The pressing plate 3 is fixed to the inner top of the fixed shell 1 through a plurality of second springs 8. An adjusting mechanism for adjusting the distance between the pressing plate 3 and the support plate 2 is arranged at the top of the pressing plate 3. The adjusting mechanism extends out of the fixed shell 1, so that in the initial state of the pressing plate 3, the second spring 8 is in a compressed state. The adapter is arranged between the support plate and the pressing plate. Under the action of the spring, the adapter is clamped and fixed, and the temperature sensor is in contact with the adapter to achieve the purpose of temperature detection. At the same time, the temperature of multiple positions of the adapter is detected to avoid the situation where the temperature of a certain part of the adapter rises, but due to the limitation of the number of temperature sensors set, the abnormal temperature is not detected. When adjusting the pressing plate, through the adjusting component, under the action of the second spring in the compressed state, the adjusting component gradually releases the restriction on the pressing plate, and the second spring drives the pressing plate to move towards the adapter (support plate), so as to press against the adapter tightly, avoiding directly driving the pressing plate to press against the adapter through a fixed column, which is easy to damage the adapter shell when the pressing force of the pressing plate on the adapter is not well grasped.

[0022] Specifically, the adjusting mechanism includes a fixing column 9 which is separately arranged at the center of the top of the pressing plate 3, that is, the fixing column and the pressing plate are not fixed, and they can be in a contact state. A cavity 10 is axially formed at the bottom of the fixing column 9, and a threaded groove 11 is axially formed at the top. The threaded groove and the cavity are not communicated. A telescopic sleeve 12 is arranged in the cavity 10, and the other end of the telescopic sleeve 12 is fixed to the pressing plate 3, so that the fixing column and the pressing plate are connected through the telescopic sleeve. The telescopic sleeve is an existing component. The fixing column 9 extends out of the top of the fixing shell 1 and is sleeved with a fixing cylinder 13. The fixing cylinder is fixed to the outer top of the fixing shell. One end of the fixing column extending out of the fixing shell extends into the fixing cylinder, and preferably, they are coaxially arranged. A stud 14 is in threaded connection with the threaded groove 11. The stud 14 sequentially extends out of the threaded groove 11 and the fixing cylinder 13 and is fixed to the fixing cylinder 13 through a bearing. When the stud is rotated, its height does not change. In the case of the fixing column being in threaded connection with it, the fixing column moves up and down along the stud, and then the pressing plate moves up and down to realize the clamping and loosening of the adapter. At the same time, since the fixing column and the pressing plate are connected through the telescopic sleeve, when the pressing plate presses against the adapter, it is not a rigid pressing but an elastic pressing, which to a certain extent avoids the excessive force between the pressing plate and the support plate from damaging the adapter. Of course, due to the certain elasticity of the support plate, it is also possible to rotatably connect the fixing column and the pressing plate through a bearing. At the same time, the telescopic sleeve can also be replaced with a connecting rod, which can also realize the fixation of the adapter.

[0023] Further, in order to prevent the fixing column from rotating and affecting the pressing plate, a through hole 15 for the fixing column 9 to pass through is arranged at the top of the fixing shell 1. A plurality of sliding grooves are vertically arranged on the side wall of the through hole 15. A sliding strip 16 that slides along the sliding grooves is arranged on the outer wall of the fixing column 9 along its axis. The sliding strip is placed in the sliding groove. When the stud rotates, the fixing column cannot rotate and can only move along the sliding strip under the cooperation of the sliding groove and the sliding strip.

[0024] Further, in order to prevent the fixing column from passing through the through hole and falling into the fixing shell, a retaining ring 17 is arranged on the circumference of the top end of the fixing column 9. The outer diameter of the retaining ring 17 is larger than the aperture of the through hole 15, so as to prevent the fixing column from passing through the through hole and extending into the fixing shell.

[0025] Furthermore, when a temperature sensor 4 is arranged at the center of the pressing plate 3, its wiring terminal passes through the pressing plate 3 and is placed in a protective sleeve 18 fixed to the top of the pressing plate 3. The protective sleeve 18 is located in the cavity 10. One end of the telescopic sleeve 12 is fixed to the top of the protective sleeve 18. A first notch 19 for the cable of the temperature sensor 4 to pass through is correspondingly arranged on the side wall of the protective sleeve 18 and the side wall of the cavity 10. It is specifically set according to needs, and the connection part of the fixing column and the pressing plate can also be directly avoided.

[0026] Further, when the adapter cannot be directly inserted between the pressing plate and the support plate from both ends of the fixed housing, one side of the fixed housing 1 is provided with a side door 20 that is rotatably connected. The adapter is placed between the pressing plate and the support plate by opening the side door. A plurality of heat dissipation holes 21 are provided on the side door 20. A second notch 22 is provided at the bottom of the side door 20. A fixing rod 23 corresponding to the second notch 22 is provided on one side of the bottom plate of the fixed housing 1. A locking sleeve 24 is sleeved on the fixing rod 23. It should be noted that: the second notch opens downward, and multiple numbers can be set according to needs. When the side door needs to be fixed, the fixing rod passes through the second notch and the locking sleeve is sleeved on it. The locking sleeve is made of rubber and has an interference fit with the fixing rod. The port of the locking sleeve abuts on both sides of the second notch to prevent the locking sleeve from entering the second notch.

[0027] Further, to facilitate the fixing of the fixed housing, a suction cup 25 is detachably provided on the outside of the fixed housing 1 and corresponding to the side door 20. The suction cup is made of rubber and can adsorb on a smooth wall surface. A fan 26 communicating with the inside of the fixed housing 1 is provided beside the suction cup 25. The fan 26 is connected to the controller 5. When it is monitored that the temperature of the adapter is too high or has a continuous rising trend, the fan is started to dissipate heat and cool down the adapter inside the fixed housing.

[0028] Further, a support rod 27 is provided on the side wall of the support plate 2, and the support rod 27 is arranged corresponding to the side door 20. The other end of the support rod is not fixed to the inner wall of the fixed housing. The setting of the support rod can, to a certain extent, prevent the support plate from tilting when the adapter is placed into the fixed housing from the side door, so as to avoid the position of the adapter from shifting.

[0029] Further, to disassemble the suction cup, a slider 28 with a "T" - shaped cross - section is provided on the connection side of the suction cup 25 and the fixed housing 1. A channel 29 adapted to the slider 28 is provided on the side wall of the fixed housing 1. One end of the channel 29 is open. The open end of the channel can face downward, left, or right, and can be set according to actual needs to facilitate the suction cup to slide into the channel. A ventilation port 30 is provided on the side wall of the fixed housing 1. An annular frame 31 is provided outside the ventilation port 30, and the fan 26 is fixed on the annular frame 31.

[0030] When using the present invention, the adapter is placed on the support plate according to its size and shape, and the position to be detected is corresponded to the temperature sensor. Then, the stud is rotated, so that the pressing plate moves towards the adapter under the action of the fixing post and the second spring until it abuts against the adapter, thus completing the fixing of the adapter.

[0031] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0032] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A temperature detection device for an electric vehicle adapter, comprising a fixed shell (1) with openings at both ends, characterized in that: The inner bottom of the fixed shell (1) is provided with a support plate (2), the inner top is provided with a pressure plate (3) corresponding to the support plate (2), the spacing between the pressure plate (3) and the support plate (2) is adjustable, a plurality of surface mount temperature sensors (4) are arranged on the support plate (2) and the pressure plate (3), the temperature sensors (4) are electrically connected to a controller (5), the controller (5) exchanges information with the charging pile, and a battery cell (6) is provided on the outer bottom of the fixed shell (1).

2. The temperature detection device of an electric vehicle adapter according to claim 1, characterized in that: The support plate (2) is fixed to the inner bottom of the fixed shell (1) via a plurality of first springs (7).

3. The temperature detection device of an electric vehicle adapter according to claim 1, characterized in that: The pressing plate (3) is fixed to the inner top of the fixed shell (1) via a plurality of second springs (8); an adjusting mechanism for adjusting the distance between the pressing plate (3) and the support plate (2) is provided at the top of the pressing plate (3); the adjusting mechanism extends out of the fixed shell (1), so that when the pressing plate (3) is in an initial state, the second springs (8) are in a compressed state.

4. The temperature detection device of the electric vehicle adapter according to claim 3, characterized in that: The adjustment mechanism comprises a fixed column (9) which is arranged at a distance from the center of the top of the pressure plate (3); a cavity (10) is formed at the bottom of the fixed column (9) along its axial direction, and a thread groove (11) is formed at the top along its axial direction; a telescopic sleeve (12) is provided in the cavity (10); the other end of the telescopic sleeve (12) is fixed to the pressure plate (3); the fixed column (9) extends out of the top of the fixed shell (1) and is sleeved with a fixed cylinder (13); a stud (14) is threadedly connected to the inner surface of the thread groove (11); the stud (14) extends out of the thread groove (11) and the fixed cylinder (13) in turn, and is fixed to the fixed cylinder (13) through a bearing.

5. The temperature detection device of the electric vehicle adapter according to claim 4, characterized in that: The top of the fixed shell (1) is provided with a through hole (15) for the fixed column (9) to pass through, a sliding groove is vertically provided on the side wall of the through hole (15), and a sliding bar (16) is provided on the outer wall of the fixed column (9) along its axial direction to slide along the sliding groove.

6. The temperature detection device of the electric vehicle adapter according to claim 5, characterized in that: A retaining ring (17) is provided in the circumferential direction of the top end of the fixing column (9), and the outer diameter of the retaining ring (17) is larger than the hole diameter of the through hole (15).

7. The temperature detection device of an electric vehicle adapter according to claim 4, characterized in that: When a temperature sensor (4) is arranged at the center of the pressing plate (3), its wiring terminal passes through the pressing plate (3) and is placed in a protective sleeve (18) fixed to the top of the pressing plate (3); the protective sleeve (18) is located in the cavity (10); one end of the telescopic sleeve (12) is fixed to the top of the protective sleeve (18); and a first notch (19) for the cable of the temperature sensor (4) to pass through is correspondingly arranged on the side wall of the protective sleeve (18) and the side wall of the cavity (10).

8. A temperature detection device for an electric vehicle adapter according to any one of claims 1 to 7, characterized in that: One side of the fixed shell (1) is a rotatably connected side door (20), the side door (20) is provided with a plurality of heat dissipation holes (21), the bottom of the side door (20) is provided with a second notch (22), one side of the bottom plate of the fixed shell (1) is provided with a fixing rod (23) corresponding to the second notch (22), and a locking sleeve (24) is sleeved on the fixing rod (23).

9. The temperature detection device of an electric vehicle adapter according to claim 8, characterized in that: A suction cup (25) is detachably provided on a side of the fixed shell (1) corresponding to the side door (20); a fan (26) communicating with the fixed shell (1) is provided next to the suction cup (25); the fan (26) is connected to the controller (5); a support rod (27) is provided on the side wall of the support plate (2); the support rod (27) is provided corresponding to the side door (20).

10. The temperature detection device of an electric vehicle adapter according to claim 9, characterized in that: A slider (28) having a T-shaped cross section is provided on the connection side of the suction cup (25) and the fixed shell (1); a groove (29) adapted to the slider (28) is provided on the side wall of the fixed shell (1); one end of the groove (29) is open; a vent (30) is provided on the side wall of the fixed shell (1); an annular frame (31) is provided outside the vent (30); and the fan (26) is fixed on the annular frame (31).

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