DE102018123609B3 - Temperature measuring device, connector, manufacturing process and temperature measuring process - Google Patents

Abstract

A temperature measuring device (110) for measuring a temperature at a contact part (108) in a connector (100) for a vehicle (1000) is presented, comprising a printed circuit board (112), at least one sensor unit (114), which is located on the printed circuit board (112 ) is arranged, wherein the sensor unit (114) has at least one sensor carrier (120) made of an electrically insulating and thermally conductive material, which forms a first leg (124) and a second leg (126), and a temperature sensor (122), wherein the temperature sensor (122) is designed to detect a temperature of the sensor carrier (120) and to provide it as a sensor signal. Furthermore, the temperature measuring device (110) comprises and forms a locking element (116) which can be moved from a locking position (128) to an unlocking position (130) and vice versa, and a spring element (118) which is connected to the locking element (116) is in the locking position (128) of the locking element (116) to press the second leg (126) of the sensor carrier (120) in the direction of the contact part (108) of the connector (100) in order to establish thermal contact between the second leg (126) of the sensor carrier (120) and the contact part (108). A corresponding connector (100), the corresponding manufacturing processes and a corresponding temperature measurement process are also presented.

Description

Technical field

The present invention relates to a temperature measuring device for measuring a temperature at a contact part in a connector for a vehicle, a connector for a vehicle with such a temperature measuring device, a manufacturing method for a temperature measuring device for measuring a temperature of a contact part in a connector for a vehicle, and a manufacturing method for a connector for a vehicle and a temperature measurement method for measuring a temperature of a contact part in a connector for a vehicle.

State of the art

The present invention is described below mainly in connection with connectors for vehicles, in particular for vehicles in the field of e-mobility. However, the invention can be used in any application in which high currents are transmitted, which means that temperature monitoring within the plug connector is necessary or at least sensible for safety reasons.

An elevated temperature of plug connectors, in particular of the contact pins or contact parts or contact elements within the plug connector, can represent a considerable safety risk, in particular in the case of devices carrying high voltage. For this reason, efforts are being made to record the surface temperature of the contact elements. Using the example of a charging socket for electric vehicles, the challenges to be solved there are presented here. Galvanic isolation is absolutely necessary, otherwise there would be a connection between high-voltage and low-voltage circuits. On the other hand, each component in a vehicle is subject to a severe restriction on the available space. Another aspect is the necessary sensor assembly during assembly, since this is usually very susceptible to damage caused mechanically. On the other hand, in the case of lines which are suitable for charging a battery of an electric vehicle and which have corresponding cross sections, the line becomes very rigid, but must be installed in the same charging socket. Furthermore, additional plug connections, in this case for the additional sensors for temperature monitoring, also mean increased assembly times, which in turn also results in costs. For the term “high voltage” (HV, high voltage), a voltage greater than 60 volts DC is understood based on the area of occupational safety, which is generally a voltage in the range between 400 V and 1000 V.

Currently, wired sensors are known, which are glued to the component to be measured or clamped with a holding element. Contactless measurement via infrared sensors is also possible, but this has disadvantages with regard to the necessary installation space and in particular the costs involved. In the example of the charging socket of electric vehicles mentioned above, due to the challenges outlined, the temperature measurement is often placed near the power-carrying contact elements and not directly on the contact element. However, this makes the temperature measurement less precise compared to a measurement directly on the surface of the contact element, since there is still an undefined temperature transition, for example via housing parts of the charging socket from the contact element to the temperature sensor.

According to the CN 206 727 269 U discloses a temperature measuring device with a sensor carrier arranged on a printed circuit board, the sensor carrier forming first and second legs from an electrically insulating and thermally conductive material, a temperature sensor for the temperature of the sensor carrier and a secondary locking device which can be mounted on a socket housing. The secondary lock includes a locking body, a locking section and a terminal holding section. A lock body has a longitudinal insertion direction. The locking section is projecting on the locking body in such a way that it can be blocked in the longitudinal direction with the receiving housing. A connection holding section is arranged on the locking body in such a way that it can be blocked with a connection connection along an axial direction of the connection connection.

Description of the invention

It is therefore an object of the invention to solve the above-described challenges with regard to temperature measurement in plug connectors, or at least to improve the temperature measurement accordingly, using means which are structurally as simple as possible.

The object is solved by the subject matter of the independent claims. Advantageous developments of the invention are specified in the dependent claims, the description and the accompanying figures. In particular, the independent claims of one claim category can also be developed analogously to the dependent claims of another claim category.

A temperature measuring device according to the invention for measuring a temperature at a contact part in a connector for a vehicle has a printed circuit board, at least one sensor unit arranged on the printed circuit board, a locking element and a spring element connected to the locking element. The sensor unit has a sensor carrier and a temperature sensor. The sensor carrier is made of an electrically insulating and thermally conductive material. The material can be a corresponding plastic, for example. The sensor carrier has a first leg and a second leg. The temperature sensor is arranged on one of the two legs. The temperature sensor is designed to detect a temperature of the sensor carrier and to provide it as a sensor signal representing the temperature. The sensor signal can be an analog or a digital signal. The first leg of the sensor carrier is arranged on the circuit board. The locking element is designed to be moved from a locking position into an unlocking position and from the unlocking position into the locking position. In the locking position of the locking element, the spring element is designed to press the second leg of the sensor carrier in the direction of the contact part of the plug connector in order to establish thermal contact between a surface of the second leg of the sensor carrier and a surface of the contact part. In other words, in the locking position of the locking element, the spring element is set up to bring the second leg of the sensor carrier into thermal contact with the contact part.

A connector for a vehicle has a carrier, at least one contact part and a temperature measuring device described above for measuring a temperature of a contact part in the connector. The carrier has a plug geometry of the connector and at least one receiving device for the at least one contact part of the connector. The at least one contact part is arranged in the at least one receiving device. The temperature measuring device is arranged in the connector such that a temperature of the contact part can be detected.

A manufacturing method for a temperature measuring device for measuring a temperature of a contact part in a connector for a vehicle comprises the steps of providing a sensor carrier, arranging a temperature sensor on the sensor carrier to create a sensor unit, arranging the sensor unit on a printed circuit board, and providing a locking element and a spring element connected to the locking element, the locking element being movable from a locking position into an unlocking position and vice versa, and wherein the spring element is designed to press the second leg of the sensor carrier in the direction of the contact part of the connector in the locking position of the locking element establish a thermal contact between the sensor carrier and the contact part.

A manufacturing method for a connector for a vehicle comprises the steps of executing the above-described manufacturing method for a temperature measuring device in order to manufacture and provide a temperature measuring device, the provision of arranging a carrier which has a plug geometry of the plug connector and at least one receiving device for at least one contact part of the plug connector the temperature measuring device on the carrier, the locking element being positioned in the unlocking position, providing at least one contact part, arranging the at least one contact part in the at least one receiving device and finally moving the locking element from the unlocking position into the locking position around the second leg of the sensor carrier in To press direction of the contact part of the connector to make thermal contact between the sensor carrier and the free end of the con To produce the clock part, and to fix the contact part in the receiving device in its position.

A temperature measuring method for measuring a temperature of a contact part in a connector for a vehicle comprises the steps of pressing a second leg of a sensor carrier onto a contact part in a connector by means of a spring element, the spring element being connected and designed to a locking element in a locking position of the Locking element to press the second leg of the sensor carrier in the direction of the contact part of the connector, establishing a thermal contact between the contact part and the sensor carrier, adjusting a temperature of the second leg of the sensor carrier to a temperature of the contact part, directing the temperature of the contact part, which is adjusted to the temperature of the contact part second leg via the sensor carrier into the temperature sensor which is arranged on the sensor carrier, the first leg of the sensor carrier being arranged on a printed circuit board and connected to the latter. In a final step, the temperature transmitted via the sensor carrier is recorded by means of the temperature sensor.

Under a connector such as a charging connector, a Connection element for releasable electrical and mechanical connection of a charging cable to an electrical connection point, for example of a vehicle. The connector has two matching, pluggable, form-coded parts. In one embodiment, the part of the connector that forms the connection point of the vehicle is described. The vehicle can be an at least partially electrically powered vehicle with an energy store that can be supplied with electrical energy via the charging plug connector.

The assembly is composed of at least the two components, referred to as supports and cable routing. The individual components can be composed of several individual parts. The components can also be in one piece. The carrier and the cable guide can be made of a plastic material.

A plug geometry provides the mechanical component of the charging connector. The plug geometry can be designed according to a plug standard. For example, the connector geometry can correspond to an IEC-62196-Combo-2 standard CCS connector. The plug geometry can also correspond to a CCS type 1, a CHAdeMO plug or a GB / T 20234.2 standard. The plug-in geometry enables a positive connection to a vehicle coupling on the charging cable. Then the plug geometry is designed as a vehicle connector on the vehicle. A plug can also be arranged on the charging cable, in which case the plug geometry in the vehicle is designed as a charging socket, as is the case, for example, with the GB / T 20234.2 standard. The plug-in geometry is electrically insulating. The plug-in geometry is made of the same material as the carrier. For example, the plug geometry is molded onto the carrier.

Contact parts of the charging connector are electrically conductive parts that are arranged in the connector geometry. The contact parts can for example be designed as metallic pins and / or sockets. Receiving devices for the contact parts are recesses in the carrier in which the contact parts can be arranged. The contact parts can be secured in the carrier by fastening devices. For example, holders for the contact parts can be connected to the carrier after the contact parts are arranged in the receiving devices. For this purpose, the carrier can have connecting elements for the holders. Holders can be screwed, for example. The receiving devices can have sealing surfaces. Seals can be arranged between the sealing surfaces and the contact parts in order to insert the contact parts in the carrier in a fluid-tight manner.

An outer surface of the plug-in geometry can protrude from the carrier and can have connecting elements for connecting to a mounting frame for the assembly. The plug-in geometry can thus be arranged in the mounting frame without standing behind the mounting frame. Structural elements of the vehicle can be arranged between the mounting frame and the carrier. The plug-in geometry can be inserted into the mounting frame from the inside. The module can also be attached to the vehicle and the mounting frame can be attached to the outside of the plug-in geometry like a cover.

The electrical insulation is integrated directly into the sensor carrier between the temperature sensor and the component to be measured. This is achieved in that the sensor carrier consists of an electrically insulating material. The sensor carrier is also already integrated on the circuit board, which can also be referred to as a circuit board, and is held in position by the locking element, which also fixes the contact part, in order to compensate for any tolerances and movements of the contact part. This significantly reduces the number of assembly steps and individual components. A contact part can be understood to mean a contact pin, a pin, a contact element, a contact socket or a socket. In one embodiment, a cable or a line is connected on one side of the contact part.

The reduced installation effort of the socket and other plugs with integrated temperature detection of the individual high-performance contact parts is an advantage. The detection of the contact part temperature within the connector is a safety-relevant feature for ever increasing charging capacities in electric vehicles. The implementation of the measurement task using the temperature measuring device described here is inexpensive to implement and easy to integrate. The temperature measuring device is characterized by simple and quick installation thanks to the solution integrated directly on a printed circuit board. Installation space can be saved by using existing components. This applies in particular to the locking element, which fixes the contact part and at the same time creates a positive and / or non-positive connection between the sensor unit and the component to be measured.

The sensor carrier is designed to produce electrical insulation between the high-voltage contact element and the temperature sensor. The temperature sensor can be arranged on the first leg of the sensor carrier. This creates a large spacing between the high-voltage areas and the low-voltage area.

The temperature sensor can be arranged on the second leg of the sensor carrier. The longitudinal direction of the second leg corresponds to the longitudinal direction of the contact part. In this embodiment, the second leg of the sensor carrier separates the temperature sensor from the contact part. The temperature sensor can thus be aligned in one plane parallel to the main direction of extent of the contact part. The width of the second leg of the sensor carrier can be adjusted according to the requirements for protection against arcing or an arc.

In order to provide improved protection against arcing or arcing between the contact part and the temperature sensor arranged on the second leg, lateral wings of the second leg can be widened or a curved surface, for example U-shaped, can be formed. The two legs of the U can be directed away from the contact element or, in other words, aligned transversely to the main direction of extent of the contact part. Advantageously, the distance of the temperature sensor from the contact part remains the same (shortest distance between the two mutually facing surfaces of the two elements), and the effective thickness of the sensor carrier, which defines the thermal conduction resistance from the contact part to the temperature sensor, remains constant. Thus, the sensitivity of the sensor system does not change or is influenced only slightly, since only the slightly increased thermal capacity of the sensor carrier can have a slight influence.

The sensor carrier can be L-shaped. The transition from the first leg to the second leg can be formed in an angular or curved manner. The two legs can be of approximately the same length, alternatively the two legs can also have a different length.

The sensor carrier can have a fixing device. The fixing device can be designed to connect the sensor unit to the printed circuit board. The fixing unit can be arranged on the first leg of the sensor carrier. Furthermore, one or more positioning elements can be arranged on the first leg of the sensor carrier in order to determine the position and / or the position of the sensor carrier in relation to the temperature measuring device and there, in particular, in relation to the printed circuit board.

The sensor carrier can have conductor tracks which are shaped in order to electrically connect the temperature sensor arranged on the sensor carrier to the circuit board or to elements on the circuit board. The circuit board can be a circuit board with measuring electronics. The conductor tracks can be applied to the sensor carrier in a printing process. Furthermore, additional pins or feet can be provided in the sensor carrier, which connect the conductor tracks to conductor tracks on the circuit board. For this purpose, corresponding holes can be provided in the circuit board through which the pins can be inserted and then soldered to the circuit board. The sensor unit can thus be arranged on the printed circuit board in a manner similar to other SMD components and can be electrically connected to it, i. H. to be soldered. In this way, a cost-effective solution can be created by using a standard process.

The conductor tracks can be arranged on the side of the sensor carrier facing away from the contact element and / or the printed circuit board. In order to keep mechanical tension of the sensor carrier from the conductor tracks or to reduce their effects, the conductor tracks can be arranged obliquely to a voltage vector of the sensor carrier. For example, the conductor tracks can be designed in a wave shape, a sawtooth shape or a combination of these. Surface tensions acting on the conductor tracks can advantageously be compensated in a manner similar to a spring.

The circuit board can have measurement and / or evaluation electronics. The electronics on the circuit board can be set up to read in and evaluate the sensor signal of the temperature sensor. Thus, the electronics can be designed to generate a binary status signal from an analog sensor signal, which represents a warning when a predefined limit temperature is exceeded, which can also be referred to as the threshold temperature. Furthermore, the evaluation electronics can be designed to discretize, that is to digitize, the sensor signal. The digitalized sensor information, which represents the temperature signal or sensor signal in a digital form, can be forwarded to a (higher-level) control unit by the evaluation electronics via a fieldbus such as CAN bus or via a data line such as Ethernet.

The thermal contact between the sensor carrier and the contact part can be designed as a positive and / or non-positive connection. For this purpose, the surface of the sensor carrier facing the contact part can be bent in order to create a larger contact area between the sensor carrier and the contact part. Furthermore, a thermal paste or a thermal adhesive can optionally be arranged between the sensor carrier and the contact part.

The locking element can be formed in one piece with the spring element. So the locking element and the spring element can be integrally connected. The spring element can be connected to the locking element, for example by means of a welded connection.

The locking element can be designed to allow insertion of the contact part into a receptacle for the contact part in the connector in the unlocking position and further to fix the contact part in a fixed position in the receptacle in the locking position.

The temperature sensor can optionally be arranged on the sensor carrier between the printed circuit board and the sensor carrier on the first leg of the sensor carrier. The temperature sensor can be electrically coupled to conductor tracks of the circuit board, the conductor tracks of the circuit board being further electrically connected to further electrical elements.

The first leg and the second leg of the sensor unit can be aligned transversely to one another. For example, the first leg and the second leg of the sensor unit can be aligned at an angle between 80 ° and 120 °, preferably at an angle between 85 ° and 110 °, preferably at an angle between 89 ° and 95 °. An angle of just over 90 ° can already exert a certain pre-tension on the contact part to be measured. In order to allow the contact part to be assembled after the temperature measuring device has been inserted, it can be advantageous if the second leg has a phase which facilitates sliding of the contact part when it is inserted or pushed past the temperature measuring device, in particular past the second leg.

Figure list

• 1 einen Schnitt eines Steckverbinders mit einer Temperaturmesseinrichtung gemäß einem Ausführungsbeispiel der vorliegenden Erfindung;
• 2 das Ausführungsbeispiel gemäß 1 in einem verriegelten Zustand;
• 3 eine Aufsicht auf einen Steckverbinder mit einer Temperaturmesseinrichtung gemäß einem Ausführungsbeispiel der vorliegenden Erfindung;
• 4 das Ausführungsbeispiel gemäß 3 in einem unverriegelten Zustand;
• 5 eine schematische Schnittdarstellung von Kontaktteil und Sensorträger gemäß Ausführungsbeispielen der vorliegenden Erfindung;
• 6 eine schematische Schnittdarstellung eines Sensorträgers gemäß einem Ausführungsbeispiel der vorliegenden Erfindung;
• 7 eine schematische Aufsicht eines Sensorträgers gemäß einem Ausführungsbeispiel der vorliegenden Erfindung;
• 8 eine schematische Schnittdarstellung eines Sensorträgers gemäß einem Ausführungsbeispiel der vorliegenden Erfindung;
• 9 eine schematische Aufsicht eines Sensorträgers gemäß einem Ausführungsbeispiel der vorliegenden Erfindung;
• 10 ein Fahrzeug mit einem Steckverbinder gemäß einem Ausführungsbeispiel der vorliegenden Erfindung; und
• 11 - 13 Ablaufdiagramme von Herstellungsverfahren bzw. eines Temperaturmessverfahrens gemäß Ausführungsbeispielen der vorliegenden Erfindung.

An advantageous exemplary embodiment of the invention is explained below with reference to the accompanying figures. Show it:

• 1 a section of a connector with a temperature measuring device according to an embodiment of the present invention;
• 2 the embodiment according to 1 in a locked state;
• 3 a plan view of a connector with a temperature measuring device according to an embodiment of the present invention;
• 4 the embodiment according to 3 in an unlocked state;
• 5 is a schematic sectional view of the contact part and sensor carrier according to embodiments of the present invention;
• 6 is a schematic sectional view of a sensor carrier according to an embodiment of the present invention;
• 7 a schematic plan view of a sensor carrier according to an embodiment of the present invention;
• 8th is a schematic sectional view of a sensor carrier according to an embodiment of the present invention;
• 9 a schematic plan view of a sensor carrier according to an embodiment of the present invention;
• 10 a vehicle with a connector according to an embodiment of the present invention; and
• 11 - 13 Flow diagrams of manufacturing methods or a temperature measuring method according to embodiments of the present invention.

The figures are merely schematic representations and serve only to explain the invention. The same or equivalent elements are provided with the same reference numerals throughout.

Detailed description

1 shows a connector 100 according to an embodiment of the present invention. The connector 100 has a carrier 102 on of a connector geometry of the connector 100 and at least one receiving device 106 for a contact part 108 forms. Furthermore, the connector has 100 at least one contact part 108 on. The contact part 108 is in the reception facility 106 arranged. The contact part 108 is set up to make electrical and mechanical contact with a mating socket of a complementary connector (not shown here). Furthermore, the connector has 100 a temperature measuring device 110 on. The temperature measuring device 110 is formed a temperature of the contact part 108 to eat.

The temperature measuring device 110 includes a circuit board 112 , a sensor unit 114 , a locking element 116 as well as a spring element 118 , The sensor unit points 114 a sensor carrier 120 as well as a temperature sensor 122 on. The sensor carrier 120 includes a first leg 124 and a second aligned transversely to it leg 126 , The sensor carrier 120 is made of an electrically insulating and thermally conductive material. The temperature sensor 122 is on a surface of the first leg 124 arranged. The temperature sensor 122 is formed a temperature of the sensor carrier 120 to be recorded and made available as a sensor signal. The temperature of the sensor carrier represents 120 a temperature of the contact part 108 , The sensor signal thus represents the temperature of the contact part 108 ,

The locking element 116 is designed from a locking position 128 in an unlocked position 130 to be moved, and vice versa. In 1 is the locking element 116 in the unlocked position 130 shown. The spring element 118 is with the locking element 116 connected. The spring element 118 is formed that when the locking element 116 yourself in the locked position 128 the second leg 126 of the sensor carrier 120 towards the contact part 108 is pressed and thus a thermal contact between the second leg 126 and thus the sensor carrier 120 and the contact part 108 is made.

In the exemplary embodiment shown, the temperature sensor 122 between the first leg 124 and the circuit board 112 arranged.

On the first leg 124 is a positioning device 132 and a fixing device 134 educated. In the exemplary embodiment shown is the positioning device 132 as a pin and the fixing device 134 realized as a combined "Snapfit" positioning and fixing device.

In the illustrated embodiment, the locking element 116 and the spring element 118 integrally formed. In a special embodiment, the locking element 116 and the spring element 118 bonded to each other, in particular welded.

In an embodiment not shown, the sensor carrier has 120 Conductor tracks that are formed around the temperature sensor 122 electrical with elements on the circuit board 112 connect to.

In a further embodiment, not shown, is on the circuit board 112 an evaluation electronics is arranged, which is designed the sensor signal of the temperature sensor 122 read in and evaluate.

2 shows that in 1 described and illustrated embodiment with the difference that the locking element 116 in the locked position 128 is arranged. The spring element 118 presses on the second leg 126 , so that it is positive and non-positive with the contact part 108 connected is.

3 and 4 show an embodiment of a connector 100 from a top view, the locking element 116 once in the locked position 128 and once in the unlocked position 130 is arranged. The locking element 116 is set up the contact parts 108 to fix in their position.

5 each show a schematic sectional view of the contact part 108 and sensor carrier 120 according to embodiments of the present invention. 5a shows in a section an embodiment of a contact part 108 in contact with a sensor unit 114 , The second leg lies here 126 of the sensor carrier 120 the sensor unit 114 on the contact part 108 on. The temperature sensor 122 is on the contact part 108 facing surface of the second leg 126 arranged. A dashed arrow 536 shows the course of a possible arc between the high-voltage-carrying contact part 108 and the temperature sensor connected to ground, among other things 122 ,

The axis of the contact part 108 runs in this embodiment and the representation in 5a in the viewing direction, in the image plane above the contact part 108 is the sensor carrier 120 with the temperature sensor 122 shown. The circuit board 112 as well as the first leg 124 are not shown in the illustration for the sake of clarity, but would be located flat on the view level. 5a shows a simple variant, ie the second leg 126 with the temperature sensor 122 is flat and aligned in a plane parallel to the contact element axis. The arrow 536 shows the air gap between the high-voltage area and the low-voltage area in a simplified manner. If this distance is too short, depending on the high voltage, the air humidity and the ambient air pressure, there may be a sparkover or even an arc. To further improve this, the second leg can 126 of the sensor carrier 120 either be widened, or represent a curved surface, for example in a U-shape, around the air gap between the high-voltage area (contact part 108 ) and the low voltage range (temperature sensor 122 / Conductor tracks). This is in 5b shown as an example. So the second leg points 126 two wings 538 on. The distance of the temperature sensor 122 from the contact part 108 remains in comparison to the embodiment in 5a same, also the effective thickness of the sensor carrier 120 , which the heat conduction resistance of the contact part 108 to the Temperature sensor 122 defined, is not increased - the sensitivity of the sensor system, ie the temperature measuring device 110 , would be (hardly) influenced, since only the slightly increased thermal capacity of the sensor carrier 120 would have a slight influence.

6 shows a schematic sectional view of a sensor unit 114 according to an embodiment of the present invention. The sensor unit 114 is on a circuit board 112 arranged. For this purpose, the second leg 126 of the sensor carrier 120 , the sensor unit 114 a positioning device 132 and a fixing device 134 on. On a surface of the sensor carrier 120 and a corresponding surface of the circuit board 112 are solder contact points corresponding to each other 640 arranged. The temperature sensor 122 is over a conductor track 642 with that on the sensor carrier 120 arranged solder pad 640 electrically connected. The first leg 124 and the second leg 126 are over a support rib 644 additionally connected.

For reliability reasons, it is important that the solder pads 640 of the sensor carrier 120 which is the electrical connection between the temperature sensor 122 , respectively the sensor carrier 120 and evaluation electronics, not shown, on the circuit board 112 represents, is kept free of mechanical forces, otherwise the solder contact points 640 can become porous and flawed. Since one with the spring element 118 of the locking element 116 mechanical tension in the sensor carrier 120 causes, or at least can cause, is one way to relieve the mechanical stresses at the solder contact points 640 to pass this over a support rib 644 on the sensor carrier 120 to implement. Would be in 6 no support rib 644 could be present, the sensor carrier 120 between the positioning pins 132 and the fixing device 134 bend up and off the circuit board 112 take off. In this case, the contact would be mechanically stressed. The support rib advantageously guides 644 however, these forces largely over their backs at the solder contact points 640 over to the fixing device 134 which the forces in the circuit board 112 derives. 7 shows a schematic plan view of the sensor carrier 120 according to the in 6 shown embodiment of the present invention.

8th shows a schematic sectional view of a sensor unit 114 according to an embodiment of the present invention. The sensor carrier 120 the sensor unit 114 is L-shaped, the transition from the first leg 124 to the second leg 126 is arched. Here is the second leg 126 shorter than the first leg 124 , its length is less than half of the first leg 124 , On the first leg 124 are a positioning device 132 and a fixing device 134 molded with which the sensor unit 114 on a circuit board 112 arranged and fixed in position and location is fixed. On the of the sensor unit 114 facing surface of the circuit board 112 is a solder pad 640 educated. On the circuit board 112 facing surface of the first leg 124 is a solder pad 640 educated. The solder pads described here 640 on the circuit board 112 and the first leg 124 of the sensor carrier 120 are positioned one on top of the other. The one on the second leg 126 positioned temperature sensor 122 is over at least one conductor track 642 with the solder pad 640 on the first leg 124 electrically connected. Furthermore, there is a locking element 116 with a spring element 118 shown, being in the unlocked position 130 is shown and with dashed lines the locking position 128 is indicated.

9 shows a schematic plan view of a sensor carrier 120 according to an embodiment of the present invention, similar to that in 8th shown embodiment. The mechanical tensioning of the sensor carrier 120 through the spring element 118 of the locking element 116 (see the small arrow on the spring element 118 ) can also be harmful for the conductor tracks, since these are exactly on the side of the sensor carrier 120 located, which is exposed to an expansion of the surface. The risk of damage to the conductor tracks 642 can be reduced by not running the conductor path parallel to the voltage vector (dashed arrow), but at an angle to it. A waveform of the trace 642 would be ideal in this case because it would lead to the conductor tracks 642 acting surface tensions can be balanced like a spring. Thus, the conductor track is torn 642 less likely than with parallel tracks 642 ,

10 shows a vehicle 1000 with a charging socket 1050 , The charging socket 1050 is a variant of a connector 100 as shown and described in the previous figures.

For ease of understanding, the reference numerals to the 1-10 retained for reference.

11 shows a manufacturing method for a temperature measuring device 110 for measuring a temperature of a contact part 108 in a connector 100 for a vehicle 1000 , This in 11 shown manufacturing method comprises one step S01 of providing one step S02 of ordering, one step S03 of ordering as well as a step S04 of providing. In step S01 providing a sensor carrier 120 made of an electrically insulating and thermally conductive material. In step S02 arranging a temperature sensor 122 on a first leg 124 of the sensor carrier 120 arranged to a sensor unit 114 to accomplish. Here is the temperature sensor 122 trained, a temperature of the sensor carrier 120 to be recorded and made available as a sensor signal. If the temperature measuring device 110 as intended in a connector 100 is used, then represents the temperature of the sensor carrier 120 the temperature of the contact part 108 , As a result, the sensor signal represents that from the temperature sensor 122 is provided, the temperature of the contact part 108 ,

In step S03 arranging the sensor unit 114 on a circuit board 112 arranged. In step S04 providing a locking element 116 and one with the locking element 116 connected spring element 118 provided. The locking element 116 is from a locked position 128 in an unlocked position 130 movable and vice versa. The spring element 118 is designed during the intended use of the temperature measuring device 110 in a connector 100 in the locked position 128 of the locking element 116 a second leg 126 of the sensor carrier 120 towards the contact part 108 of the connector 100 to press to make thermal contact between the sensor carrier 120 and the contact part 108 to manufacture.

12 shows a manufacturing method for a connector 100 for a vehicle 1000 , This in 12 The manufacturing process shown includes the steps S05 to S10 , in step S05 of executing that in 11 described manufacturing method for a temperature measuring device 110 executed to a corresponding temperature measuring device 110 to manufacture and provide. In step S06 of providing becomes a carrier 102 provided the connector geometry of the connector 100 and at least one receiving device 106 for a contact part 108 of the connector 100 having. In step S07 arranging the temperature measuring device 110 on the carrier 102 arranged, the locking element 116 in the unlocked position 130 is positioned. In step S08 providing at least one contact part 108 provided and then this in step S09 arranging in the at least one receiving device 106 of the carrier 102 arranged. In the final step S10 of moving becomes the locking element 116 from the unlocked position 130 in the locked position 128 moved to the second leg 126 of the sensor carrier 120 towards the contact part 108 of the connector 100 to ultimately press thermal contact between the sensor carrier 120 and the contact part 108 manufacture, and around the contact part 108 in the reception facility 106 to fix in position. The locking element 116 thus combines two functions.

This in 13 illustrated temperature measuring method for measuring a temperature of a contact part 108 in a connector 100 for a vehicle 1000 includes the steps S11 to S15 , In step S11 becomes a second leg 126 a sensor carrier 120 to a contact part 108 in a connector 120 by means of a spring element 118 pressed. Here is the spring element 118 with a locking element 116 connected. The spring element 118 is designed in a locking position 128 of the locking element 116 the second leg 126 of the sensor carrier 120 towards the contact part 108 of the connector 100 to press. In step S12 of manufacturing is a thermal contact between the second leg 126 of the sensor carrier 120 and the contact part 108 manufactured. In step S13 of the adjustment will be a temperature of the second leg 126 to a temperature of the contact part 108 aligned. In step S14 of the conduction is the adjusted temperature over the sensor carrier 120 to a temperature sensor 122 directed. The temperature sensor 122 is on the sensor carrier 120 arranged. The first leg 124 of the sensor carrier 120 is on a circuit board 112 arranged. The last step is S15 detecting the transmitted temperature using the temperature sensor 122 detected and provided as a sensor signal representing the temperature.

Since the devices and methods described in detail above are exemplary embodiments, they can be modified in a conventional manner to a large extent by the person skilled in the art without departing from the scope of the invention. In particular, the mechanical arrangements and the size ratios of the individual elements to one another are selected only as examples.

Reference list

100

Connectors

102

carrier

106

Reception facility

108

contact part

110

Temperature measuring device

112

Circuit board

114

Sensor unit

116

Locking element

118

Spring element

120

Sensor carrier

122

Temperature sensor

124

first leg

126

second leg

128

Locking position

130

Unlocking position

132

Positioning device

134

Fixing device

536

Arrow, arc

538

wing

640

Solder contact point, solder joint

642

Conductor track

644

Support rib

1000

vehicle

1050

Charging socket, charging connector

S01-S15

Procedural steps

Claims (15)

Temperature measuring device (110) for measuring a temperature at a contact part (108) in a connector (100) for a vehicle (1000), comprising: a. a circuit board (112); b. at least one sensor unit (114) which is arranged on the printed circuit board (112), c. wherein the sensor unit (114) has at least one sensor carrier (120) made of an electrically insulating and thermally conductive material, the sensor carrier (120) forming a first leg (124) and a second leg (126), and d. has a temperature sensor (122), the temperature sensor (122) being designed to detect a temperature of the sensor carrier (120) and to provide it as a sensor signal; e. a locking element (116) which can be moved from a locking position (128) to an unlocking position (130) and vice versa; and f. a spring element (118), which is connected to the locking element (116), and is designed, in the locking position (128) of the locking element (116), the second leg (126) of the sensor carrier (120) in the direction of the contact part (108) of the Push connector (100) to establish thermal contact between the second leg (126) of the sensor carrier (120) and the contact part (108). Temperature measuring device (110) according to Claim 1 , in which the sensor carrier (120) has a fixing device (134) which is set up to connect the sensor unit (114) to the printed circuit board (112), the fixing device (134) on the first leg (124) of the sensor carrier (120 ) is arranged. Temperature measuring device (110) according to one of the preceding claims, in which the temperature sensor (122) is arranged on the second leg (126) of the sensor carrier (120) on the side facing the first leg (124). Temperature measuring device (110) according to one of the preceding claims, wherein the sensor carrier (120) has conductor tracks (642) which are shaped in order to electrically connect the temperature sensor (122) to elements on the printed circuit board (112). Temperature measuring device (110) according to one of the preceding claims, in which the printed circuit board (112) has evaluation electronics in order to read in and evaluate the sensor signal of the temperature sensor (122). Temperature measuring device (110) according to one of the preceding claims, in which the thermal contact between the sensor carrier (120) and the contact part (108) is designed as a positive and / or non-positive connection. Temperature measuring device (110) according to one of the preceding claims, in which the locking element (116) is formed in one piece with the spring element (118). Temperature measuring device (110) according to one of the preceding claims, in which the locking element (116) is integrally connected to the spring element (118), for example by means of welding. Temperature measuring device (110) according to one of the preceding claims, in which the locking element (116) is designed, in the unlocked position (130), inserting the contact part (108) into a receiving device (106) for a contact part (108) in the plug connector (100 ) and to fix the contact part (108) in a fixed position in the receiving device (106) in the locking position (128). Temperature measuring device (110) according to one of the preceding claims, wherein the first leg (124) and the second leg (126) of the sensor unit (114) are aligned transversely to one another. Connector (100) for a vehicle (1000) with a. a carrier (102) which has a plug geometry of the plug connector (100) and at least one receiving device (106) for a contact part (108) of the plug connector (100); b. at least one contact part (108) which is arranged in the at least one receiving device (106); and c. a temperature measuring device (110) for measuring a temperature of the at least one contact part (108) in the connector (100) according to one of the preceding claims. Connector (100) according to the preceding claim, which is a vehicle-side assembly of a charging connector (1050) for a vehicle (1000). Manufacturing method for a temperature measuring device (110) for measuring a temperature of a contact part (108) in a connector (100) for a vehicle (1000), with the following steps: a. Providing (S01) a sensor carrier (120) made of an electrically insulating and thermally conductive material; b. Arranging (S02) a temperature sensor (122) on a first leg (124) of the sensor carrier (120) to create a sensor unit (114), the temperature sensor (122) being designed to detect a temperature of the sensor carrier (120) and to be provided as a sensor signal; c. Arranging (S03) the sensor unit (114) on a printed circuit board (112); d. Providing (S04) a locking element (116) and a spring element (118) connected to the locking element (116), the locking element (116) being movable from a locking position (128) to an unlocking position (130) and vice versa, and wherein the spring element (118) is designed, in the locking position (128) of the locking element (116), to press a second leg (126) of the sensor carrier (120) in the direction of the contact part (108) of the connector (100) in order to make thermal contact between the sensor carrier (120) and the contact part (108). Manufacturing method for a connector (100) for a vehicle (1000), comprising the following steps: a. Executing (S05) the manufacturing method for a temperature measuring device (110) according to the preceding claim to manufacture and providing a temperature measuring device (110); b. Providing (S06) a carrier (102) which has a plug geometry of the plug connector (100) and at least one receiving device (106) for a contact part (108) of the plug connector (100); c. Arranging (S07) the temperature measuring device (110) on the carrier (102), the locking element (116) being positioned in the unlocking position (130); d. Providing (S08) at least one contact part (108); e. Arranging (S09) the contact part (108) in the at least one receiving device (106); and f. Moving (S10) the locking element (116) from the unlocking position (130) to the locking position (128) in order to press the second leg (126) of the sensor carrier (120) in the direction of the contact part (108) of the connector (100) in order to to establish a thermal contact between the sensor carrier (120) and the free end of the contact part (108), and to fix the contact part (108) in position in the receiving device (106). Temperature measuring method for measuring a temperature of a contact part (108) in a connector (100) for a vehicle (1000), comprising the following steps: a. Pressing (S11) a second leg (126) of a sensor carrier (120) onto a contact part (108) in a connector (100) by means of a spring element (118), the spring element (118) being connected to a locking element (116), and is designed, in a locking position (128) of the locking element (116), to press the second leg (126) of the sensor carrier (120) in the direction of the contact part (108) of the plug connector (100); b. Establishing (S12) a thermal contact between the second leg (126) of the sensor carrier (120) and the contact part (108); c. Adjusting (S13) a temperature of the second leg (126) to a temperature of the contact part (108); d. Conducting (S14) the adjusted temperature via the sensor carrier (120) to a temperature sensor (122) which is arranged on the sensor carrier (120), the first leg (124) of the sensor carrier (120) being arranged on a printed circuit board (112) ; e. Detecting (S15) the transmitted temperature by means of the temperature sensor (122).

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