Temperature detector and connector

Abstract

The temperature detector comprises a sensor assembly, a heat conduction layer and a pin header, the sensor assembly at least comprises a PCB and a temperature sensing resistor, and the temperature sensing resistor is fixedly connected to the front end of the PCB to form a contact end; the heat conduction layer is sleeved on the temperature sensing resistor, and the heat conduction layer and the temperature sensing resistor are tightly attached; and the end part of the pin header is fixedly connected with the tail end of the PCB to form a transmission end capable of outputting detection data of the temperature sensing resistor. According to the utility model, the heat conduction layer is sleeved outside the temperature sensing resistor to reduce heat loss and enhance the reliability of temperature detection, and the built-in temperature detector enables the heat conduction layer, the temperature sensing resistor and the terminal to be in direct contact to reduce heat loss as much as possible, so that the real-time detection result of the temperature sensing resistor is more reliable and effective, and misjudgment is avoided; and accurate detection of the terminal temperature is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a temperature detector and a connector. Background Art

[0002] According to national standards, in applications where the rated charging current is greater than 16A, power sockets and vehicle sockets should be equipped with temperature monitoring devices, and power supply equipment and electric vehicles should have temperature detection and over-temperature protection functions. For charging station products currently on the market, temperature sensors are basically placed outside the connector of the charging station and fixed to the outside of the wire with heat shrink tubing. The temperature sensor is placed outside the connector, and the temperature measured is mainly the temperature transmitted by the wire, not the terminal part with the highest heat generation. It is also greatly affected by the ambient temperature, and there is temperature loss, which cannot accurately play the role of measurement and monitoring. In addition, the existing connectors are not convenient for temperature sensors to install. As shown in Chinese patent 202020055876.7, it is necessary to set an additional installation component for the temperature sensor inside the connector, which increases the cost. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a temperature detector and a connector.

[0004] The purpose of the utility model is achieved through the following technical solutions:

[0005] The temperature detector includes a sensor component, a heat-conducting layer and a pin header. The sensor component includes at least a PCB board and a temperature-sensitive resistor. The temperature-sensitive resistor is fixedly connected to the front end of the PCB board to form a contact end. The heat-conducting layer is sleeved on the temperature-sensitive resistor, and the two are tightly fitted. The end of the pin header is fixedly connected to the rear end of the PCB board to form a transmission end that can output the detection data of the temperature-sensitive resistor.

[0006] Preferably, the sensor assembly further comprises a connecting shell, the PCB board is built into the connecting shell, and the temperature sensing resistor is arranged at the front end of the connecting shell.

[0007] Preferably, the inner contour of the thermal conductive layer matches the outer contour of the temperature sensing resistor, the connecting shell has a convex ring, a limiting step surface is formed between the convex ring and the temperature sensing resistor, and the thermal conductive layer is sleeved on the temperature sensing resistor and abuts against the convex ring.

[0008] Preferably, the inner end of the pin header is inserted into the connection housing and is vertically fixed to the PCB board.

[0009] A connector comprises a plug housing, a terminal and a temperature detector as described above, wherein a first accommodating cavity is arranged in the plug housing, the terminal is inserted in the first accommodating cavity, an opening is opened on one side of the first accommodating cavity, the temperature detector is fixed in the opening, and the contact end of the temperature detector contacts the side wall of the terminal, and a sealing ring is sleeved on the temperature detector, and the sealing ring seals the opening.

[0010] Preferably, a second accommodating chamber is provided in the insert housing, the first accommodating chamber and the second accommodating chamber are communicated with each other through the opening, and the pin row of the temperature detector is located in the second accommodating chamber and extends in the same direction as the second accommodating chamber.

[0011] Preferably, the side of the terminal has an outwardly protruding wing portion, and the wing portion abuts against the heat conductive layer.

[0012] Preferably, an annular groove is provided on the connecting housing of the sensor assembly, and the sealing ring is sleeved in the annular groove.

[0013] The beneficial effects of the utility model are mainly reflected in:

[0014] A thermal conductive layer is installed outside the temperature sensing resistor to reduce heat loss and enhance the reliability of temperature detection. At the same time, a built-in temperature detector allows the thermal conductive layer, temperature sensing resistor and terminal to be in direct contact to minimize heat loss, making the real-time detection results of the temperature sensing resistor more reliable and effective, avoiding misjudgment and achieving accurate detection of the terminal temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The technical solution of the utility model is further described below in conjunction with the accompanying drawings:

[0016] Figure 1 : Schematic diagram of the temperature detector;

[0017] Figure 2 : A partial cross-sectional view of a first embodiment of a connector;

[0018] Figure 3 : A partial cross-sectional view of a second embodiment of the connector. DETAILED DESCRIPTION

[0019] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0020] In the description of the scheme, it should be noted that the terms "center", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance. Moreover, in the description of the scheme, with the operator as a reference, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

[0021] like Figure 1 As shown, the utility model discloses a temperature detector, including a sensor component, a heat-conducting layer 1 and a pin header 2, wherein the sensor component at least includes a PCB board 3 and a temperature-sensitive resistor 4, wherein the temperature-sensitive resistor 4 is fixedly connected to the front end of the PCB board 3 to form a contact end; the heat-conducting layer 1 is sleeved on the temperature-sensitive resistor 4, and the two are tightly fitted; the end of the pin header 2 is fixedly connected to the tail end of the PCB board 3 to form a transmission end that can output the detection data of the temperature-sensitive resistor 3.

[0022] like Figure 3 As shown, it is the first embodiment of this scheme. In the first embodiment, the temperature sensing resistor 4 is fixed at the front end of the PCB board 3, the heat conducting layer 1 is sleeved at the front end of the PCB board 3, and the temperature sensing resistor 4 is tightly fitted with the inner wall of the heat conducting layer 1 to perform real-time temperature detection. The pin header 2 is fixed at the rear end of the PCB board 3 to facilitate connection with other receiving components.

[0023] like Figure 2 FIG. 2 is a second embodiment of the present invention. In the second embodiment, the sensor assembly further includes a connecting housing 300, the PCB board 3 is built in the connecting housing 300, and the temperature sensing resistor 4 is arranged at the front end of the connecting housing 300. The temperature sensing resistor 4 preferably has a rectangular outer contour. In other feasible embodiments, the outer contour of the temperature sensing resistor 4 can be set as needed, which is not limited here.

[0024] The inner contour of the heat-conducting layer 1 matches the outer contour of the temperature-sensitive resistor 4 to ensure a tight fit between the two for effective heat transfer.

[0025] The connection housing 300 has a convex ring 301, and a limiting step surface is formed between the convex ring 301 and the temperature sensing resistor 4. The heat conducting layer 1 is sleeved on the temperature sensing resistor 4 and abuts against the convex ring 501. The convex ring 301 is provided to facilitate installation and to facilitate judging whether the heat conducting layer 1 is installed in place.

[0026] The inner end of the pin header 2 is inserted into the connection housing 300 and vertically fixed to the PCB board 33 .

[0027] Furthermore, the present scheme also discloses a connector, comprising a plug shell 6, a terminal 7 and the temperature detector as described above, wherein a first accommodating cavity 601 is provided in the plug shell 6, the terminal 7 is inserted in the first accommodating cavity 601, an opening 603 is opened on one side of the first accommodating cavity 601, the temperature detector is fixed in the opening 603, and the contact end of the temperature detector is in contact with the side wall of the terminal 7, and a sealing ring 8 is provided on the temperature detector, and the sealing ring 8 seals the opening 603.

[0028] Specifically, Figure 2 The first embodiment of the connector is shown. In the first embodiment, the temperature detector is partially disposed outside the plug housing 6, the contact end of the temperature detector is inserted into the plug housing 6, and the side wall of the terminal 7 abuts against the heat conductive layer 1 for heat transfer.

[0029] The connecting housing 300 of the sensor assembly is provided with an annular groove 302 , and the sealing ring 6 is sleeved in the annular groove 302 to seal the opening 603 , thereby ensuring the sealing of the first accommodating cavity 701 .

[0030] like Figure 3 The second embodiment of the connector is shown. In the second embodiment, the temperature detector is built into the ferrule housing 6. The ferrule housing 6 is provided with a second accommodating cavity 602. The first accommodating cavity 601 and the second accommodating cavity 602 are connected through the opening 603. The temperature detector is fixed in the opening 603, with its contact end extending toward the first accommodating cavity 601 and its transmission end extending toward the second accommodating cavity 602.

[0031] Specifically, the side of the terminal 7 has an outwardly protruding wing portion 701, and the wing portion 701 abuts against the heat-conducting layer 1 to directly transfer heat.

[0032] The pin row 2 of the temperature detector is located in the second accommodating cavity 702 and extends in the same direction as the second accommodating cavity 702 .

[0033] The utility model sets a heat-conducting layer 1 on the outside of the temperature-sensing resistor 4 to reduce heat loss and enhance the reliability of temperature detection. At the same time, the temperature detector is built in so that the heat-conducting layer 1, the temperature-sensing resistor 4 and the terminal 7 are in direct contact to reduce heat loss as much as possible, making the real-time detection result of the temperature-sensing resistor 4 more reliable and effective to avoid misjudgment.

[0034] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0035] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the utility model. They are not intended to limit the protection scope of the utility model. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A temperature detector, characterized in that: The invention comprises a sensor component, a heat conducting layer (1) and a pin header (2), wherein the sensor component comprises at least a PCB board (3) and a temperature sensing resistor (4), wherein the temperature sensing resistor (4) is fixedly connected to the front end of the PCB board (3) to form a contact end; the heat conducting layer (1) is sleeved on the temperature sensing resistor (4), and the two are tightly fitted; the end of the pin header (2) is fixedly connected to the rear end of the PCB board (3) to form a transmission end capable of outputting detection data of the temperature sensing resistor (4).

2. The temperature detector according to claim 1, characterized in that: The sensor assembly further comprises a connecting housing (300), the PCB board (3) is built into the connecting housing (300), and the temperature sensing resistor (4) is arranged at the front end of the connecting housing (300).

3. The temperature detector according to claim 2, characterized in that: The inner contour of the heat-conducting layer (1) matches the outer contour of the temperature-sensing resistor (4); the connecting shell (300) has a convex ring (301); a limiting step surface is formed between the convex ring (301) and the temperature-sensing resistor (4); the heat-conducting layer (1) is sleeved on the temperature-sensing resistor (4) and abuts against the convex ring (301).

4. The temperature detector according to claim 2, characterized in that: The inner end of the pin row (2) is inserted into the connection housing (300) and is vertically fixed to the PCB board (3).

5. A connector, characterized in that: The invention comprises an insert shell (6), a terminal (7) and a temperature detector according to any one of claims 1 to 4, wherein a first accommodating cavity (601) is arranged in the insert shell (6), the terminal (7) is inserted in the first accommodating cavity (601), an opening (603) is opened on one side of the first accommodating cavity (601), the temperature detector is fixed in the opening (603), and the contact end of the temperature detector contacts the side wall of the terminal (7), and a sealing ring (8) is sleeved on the temperature detector, and the sealing ring (8) seals the opening (603).

6. The connector according to claim 5, characterized in that: A second accommodating cavity (602) is provided in the plug housing (6); the first accommodating cavity (601) and the second accommodating cavity (602) are connected via the opening (603); the pin row (2) of the temperature detector is located in the second accommodating cavity (602) and extends in the same direction as the second accommodating cavity (602).

7. The connector according to claim 6, characterized in that: The side of the terminal (7) has an outwardly protruding wing portion (701), and the wing portion (701) abuts against the heat conducting layer (1).

8. The connector according to claim 5, characterized in that: An annular groove (302) is provided on the connecting housing (300) of the sensor assembly, and the sealing ring (8) is sleeved in the annular groove (302).

Images