EP3977022A1 - Radiateur électrique de véhicule automobile équipé d'un dispositif de mesure de température - Google Patents
Radiateur électrique de véhicule automobile équipé d'un dispositif de mesure de températureInfo
- Publication number
- EP3977022A1 EP3977022A1 EP20727169.3A EP20727169A EP3977022A1 EP 3977022 A1 EP3977022 A1 EP 3977022A1 EP 20727169 A EP20727169 A EP 20727169A EP 3977022 A1 EP3977022 A1 EP 3977022A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- radiator
- snap
- temperature sensor
- elements
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/00642—Control systems or circuits; Control members or indication devices for heating, cooling or ventilating devices
- B60H1/00735—Control systems or circuits characterised by their input, i.e. by the detection, measurement or calculation of particular conditions, e.g. signal treatment, dynamic models
- B60H1/00792—Arrangement of detectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/22—Heating, cooling or ventilating devices the heat source being other than the propulsion plant
- B60H1/2215—Heating, cooling or ventilating devices the heat source being other than the propulsion plant the heat being derived from electric heaters
- B60H1/2225—Heating, cooling or ventilating devices the heat source being other than the propulsion plant the heat being derived from electric heaters arrangements of electric heaters for heating air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/208—Temperature of the air after heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
- F24H3/0429—For vehicles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/04—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element
- F24H3/0405—Air heaters with forced circulation the air being in direct contact with the heating medium, e.g. electric heating element using electric energy supply, e.g. the heating medium being a resistive element; Heating by direct contact, i.e. with resistive elements, electrodes and fins being bonded together without additional element in-between
- F24H3/0429—For vehicles
- F24H3/0435—Structures comprising heat spreading elements in the form of fins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating devices
- B60H1/22—Heating, cooling or ventilating devices the heat source being other than the propulsion plant
- B60H2001/2246—Heating, cooling or ventilating devices the heat source being other than the propulsion plant obtaining information from a variable, e.g. by means of a sensor
- B60H2001/2256—Heating, cooling or ventilating devices the heat source being other than the propulsion plant obtaining information from a variable, e.g. by means of a sensor related to the operation of the heater itself, e.g. flame detection or overheating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/04—Sensors
- F24D2220/042—Temperature sensors
Definitions
- the present invention relates to the field of ventilation, heating and / or air conditioning of motor vehicles and relates to more
- thermometer for an electric radiator of a ventilation, heating and / or air conditioning system of a vehicle.
- An electric heater can, for example, be placed across the path of an air flow, in order to heat said air flow.
- a radiator has a frame in which heating elements are housed, these heating elements being configured to be in contact with the air passing through so as to promote an exchange of calories between the air and the heating elements.
- these heating elements may include stones or
- PTC effect ceramics that is to say with a positive temperature coefficient.
- the current supply of these resistive elements generates heating of the heating element.
- the exchange of calories can be improved by the presence of radiant elements associated with the heating elements so as to increase the exchange surface with the air passing through this electric heater.
- temperature sensors In order to control the heating emanating from such a radiator, it is known practice to arrange temperature sensors in the path of the air flow leaving the radiator. These temperature sensors are arranged on a support, for example a face of the frame located at the level of the face of the radiator through which the flow of air from the radiator exits and comprising housings for the sensors. The temperature sensors can also be housed within a grid covering said face of the frame.
- the present invention solves the problem, by providing a
- Temperature measuring device that can adapt more versatile to various types of electric heaters.
- the invention relates to an electric radiator for a motor vehicle
- a heating, ventilation and air conditioning installation comprising a rigid frame housing heating elements and radiating elements capable of being traversed by an air flow, said radiator being equipped with a temperature measuring device comprising at least one temperature sensor and a support element comprising at least one housing for one or more temperature sensors and a device for fixing to the electric heater, characterized in that the fixing device associated with the support element comprises at least least one snap-fastening member configured to cooperate with one of the radiating elements of the radiator.
- the radiator is formed of a heating body arranged in the frame and forms an alternation, in a transverse direction, of radiant elements and heating elements respectively extending longitudinally.
- Each heating element comprises resistive elements whose power supply generates heating, said resistive elements being housed in a tube or embedded in a material forming an electrical insulator.
- each radiant element consists of a corrugated sheet, each top of which is glued or brazed with a heating element or a rigid portion of the frame.
- the temperature sensor is then able to measure the temperature of the air flow leaving the radiator, the support element ensuring the maintenance of at least one temperature sensor at the level of the outlet of the air flow from the radiator.
- the placement of the temperature sensor in the air flow at the outlet of the radiator does not need to be inserted into a grid extending over an entire face of the radiator and fixed around the periphery rigid frame of the radiator.
- the mechanical size is therefore limited.
- the fixing of the temperature sensor at the level of the radiant elements makes it possible to overcome the variable dimensions and shapes from one radiator to another at the level of their rigid frame, so that the same format of the temperature measuring device according to the invention can be implemented on different models of radiator.
- the support element is made of a heat-resistant material, for example a polymer, in order to withstand the high temperatures of the air flow leaving the radiator.
- the snap-fastening member is configured to be able to be inserted directly into the radiator, between one of the radiant elements thereof. More particularly, the snap-fit fastener includes attachment means sized to fit between fins of one of the radiant elements arranged to allow a flow of air to pass through the radiator.
- each fixing member by
- Snap-lock is configured to allow removable attachment of the temperature measuring device to one of the radiant elements.
- the temperature measuring device can thus be assembled or disassembled at will.
- the snap-fastening member is dimensioned to deform the radiant elements during the assembly of the temperature sensor on the radiator in a first direction of translation and the corresponding radiant elements are shaped between two rigid elements, for example two heating elements, or a heating element and a part of the rigid structure of the frame, so as to generate an elastic return effect which tends to prevent the release of the fixing member in a second direction translation opposite to the first direction.
- the radiant elements each consist of a corrugated sheet, so that the insertion of a rigid element through the corrugations of the sheet tends to plastically deform the sheet.
- the transverse dimension of the fixing member with respect to the transverse dimension of the corrugated sheet forming the radiant element combined with the fact that the corrugated sheet is clamped between two heating elements, or between a heating element and a rigid element of the frame, provides a slight elastic return effect which tends to block the fixing member in position, which can only be released under a specific tensile force from a user.
- the snap-fastening member comprises at least one tab extending from the body of the support member and a ramp protruding from said tab.
- the body of the support element is thus extended by at least one snap fastening member, the number of these snap fastening members on the support may depend, for example, on the size of the support. The greater the number of snap fasteners, the greater the mechanical retention.
- the snap fastener more particularly the tongue thereof, comes from the body of the support element and extends the latter along an axis perpendicular to the axis of elongation of the support element.
- the tab is configured to be inserted into one of the radiant elements housed in the frame of the radiator.
- the snap-fastening member comprises at least one ramp projecting from the tongue.
- a ramp is provided at the free end of the tongue, that is to say at the end opposite to the support element.
- the ramp has an oblique wall facilitating the insertion of the fixing member within the radiating elements of the radiator.
- the position of the temperature measuring device is then secured mechanically by means of the stop face of the ramp of the fixing member.
- the tongue of the fixing member can form the base of a plurality of ramps ensuring better hangs radiant elements of the radiator.
- the stop face of the ramp can for example be hooked into a louver of the radiating elements of the radiator if the latter include any.
- the support element has an elongated shape in a longitudinal direction along which several housings are arranged in series and the snap fasteners are aligned in the same longitudinal direction so that each snap-fastening member cooperates with a radiant element which is specific to it.
- the temperature measuring device can thus accommodate a plurality of
- the temperature sensors which can be aligned with each other in a main direction parallel to the direction of elongation of the support element, in particular in a direction parallel to the direction of the stacking one on top of the other of the radiant elements and heaters in the radiator heating body.
- the temperature sensors can thus be aligned in a direction ensuring the measurement of the heating temperature in several distinct zones of the heating body corresponding to several radiant elements. It is obvious that in this embodiment, the temperature sensors are separated from neighboring sensors by a sufficient distance for each of said temperature sensors to take significant measurements relative to each other.
- the temperature measuring device is arranged on one face of the radiator, preferably the outlet face of the radiator from which emanates the air flow, the temperature of which is increased by heating the heating elements of the radiator.
- the housing to accommodate a temperature sensor is configured to improve the reliability of the temperature measurement taken by the temperature sensor, while ensuring protection thereof.
- the support element can be associated with a single temperature sensor and have a compact shape defining a single housing, and the snap fasteners are facing either side of the housing. so that the snap-fit fasteners cooperate with the same radiant element.
- the temperature sensor may be an NTC type sensor, in particular chosen for the sensitivity to temperature variations.
- the temperature sensor is
- the temperature sensor can for example be configured to send a signal to the connection interface of the radiator when a threshold temperature detected by the temperature sensor is reached by the flow of air emanating from the radiator. The parameters of the radiator can then be modified according to the
- the support element can
- the gutter is for example molded in the heart of the material of the support element in order to serve as a reception area for the electrical wires linked to the temperature sensor.
- the gutter thus acts as a thermal barrier so that the flow of air leaving the radiator does not damage the electrical wires.
- the support element can also include a cover adapted to cooperate with the gutter.
- the cooperation between the gutter and the cover forms an internal volume intended to accommodate the electric wires.
- the cooperation between the gutter and the cover provides mechanical retention of the electrical wires within the support element in addition to providing the thermal barrier function.
- the support element has the shape of a cap delimiting the housing within it, the cap enveloping a single temperature sensor and being pierced with orifices capable of allowing air to pass to the temperature sensor.
- This embodiment guarantees protection of the temperature sensor by the support element which completely surrounds the latter.
- the cap is pierced with holes so that the sensor temperature can maintain direct contact with the air flow emanating from the radiator and thus measure the temperature of the latter.
- the fixing clip of the temperature measuring device is inserted between the fins of one of the radiating elements of the radiator by a front face thereof, the tongue of the fixing clip having a principal dimension greater than one dimension
- the stop face of the ramp rather than catching on the level of the louvers of the radiating elements of the radiator, can extend beyond the radiant elements if the length of the tongue allows it, until it crosses radiant elements and emerge at a rear air face of the radiator, either the face opposite a front face of the radiator, which corresponds to the face of the radiator where the temperature measuring device is inserted, or else at the face of the radiator from which the radiator air flow emerges.
- the stop face of the ramp will abut the end of the radiant elements located on the side of the rear face of the radiator.
- This embodiment thus ensures an alternative attachment of the fixing clip in the structure of the radiator, for example if said radiator does not include louvers at its radiating elements.
- the temperature sensor is located at a distance from the air outlet face of the radiator of at least 10 mm.
- the temperature sensor should be located
- FIG. 1 is a general representation of a first embodiment of a temperature measuring device placed on a radiator
- FIG. 2 is a more detailed view of the temperature measuring device
- FIG. 3 is a view of the temperature measuring device illustrating a
- FIG. 4 is a schematic representation of the fastener by
- FIG. 5 is a view of the temperature measuring device illustrating a
- FIG. 6 is a schematic representation of the fastener by
- FIG. 7 is a view of one side of the radiator, opposite to the one opposite
- the [Fig. 8] illustrates a second embodiment of the temperature measuring device
- FIG. 9 is a representation of the second embodiment of the
- FIG. 10 is a representation of a third embodiment of
- the LVT trihedron represents the orientation of the device according to the invention in
- the vertical direction V corresponds to an axis along which the main dimension of the radiator
- the transverse direction T corresponds to an axis parallel to the main direction of the air flow emanating from the radiator
- the longitudinal direction L corresponds to an axis perpendicular to the vertical direction V and the transverse direction T, this direction longitudinal L possibly corresponding to the direction of main elongation of the temperature measuring device.
- Such an orientation is arbitrary and independent of the orientation of the radiator in the vehicle.
- Figure 1 shows an electric heater 1 on which is disposed a temperature measuring device 2 according to a first embodiment of the invention.
- the electric heater 1 comprises a connection interface 1 1 and a rigid frame 16 on which is fixed this connection interface and configured to house heating elements and radiant elements capable of being traversed by a flow of air to be heated.
- connection interface 1 1 comprises means for connecting the
- radiator 1 to a power supply, not shown in figure 1.
- connection interface 11 thus allows current to flow through the electric heater 1 in order to supply the heating function of the latter.
- the frame 16 is directly linked to the connection interface 11 and comprises a rigid structure for example having a rectangular shape.
- the frame 16 is configured to house at least one heating element 18 and at least one radiant element 12.
- the electric radiator 1 here comprises a plurality of heating elements 18 and a plurality of radiating elements 12 arranged alternately in a row. longitudinal direction, each element extending mainly in a vertical direction and having a thickness in a transverse direction.
- the heating element 18 is here in the form of a tube extending over the entire vertical dimension along a vertical axis V of the frame 16.
- the heating elements 18 comprise stones or ceramics with PTC effect, or positive temperature coefficient.
- the heating elements 18 thus form a heat source, when they are electrically supplied, so as to heat an air flow 15 passing through the radiator 1 and exiting the latter via an outlet face 13 of the radiator 1.
- On either side of a heating element 18 are arranged radiant elements 12.
- the radiant elements 12 extend mainly along the vertical axis V as the heating element 18.
- the radiant elements 12 can by example take the form of a corrugated sheet forming a plurality of fins, the tops of this corrugated sheet being made integral with the two heating elements which surround it or with a heating element and with a rigid part of the frame.
- the function of the radiant elements 12 is to diffuse the heat generated by the heating element 18 and to increase the exchange surface with the air flow 15 passing through the radiator in order to improve the transfer of calories.
- the frame 16 has two main faces perforated to allow passage of the air passing through the radiator, each perforated face comprising vertical bars 17 also participating in maintaining the heating elements 18 and the radiant elements 12 within the frame 16.
- the vertical bars 17 are arranged in a regular manner on each of the perforated faces of the radiator and in particular, as can be seen in FIG. 1, on the outlet face 13 of the radiator 1.
- the temperature measuring device 2 is placed on the face of
- the temperature measuring device 2 comprises a plurality of temperature sensors 4 installed on a support element 5, in particular made in heat resistant material.
- the temperature measuring device 2 extends mainly in a direction parallel to the longitudinal direction L.
- the temperature sensors 4 are arranged on the support element 5 so as to be aligned along this longitudinal direction L As can be seen in figure 1, the alignment of the temperature sensors 4 along the longitudinal direction, that is to say the direction in which the heating elements and the radiant elements are arranged against each other, makes it possible to measure the temperature of the air flow 15 at the radiator outlet opposite different radiant elements or heating elements.
- the plurality of temperature sensors 4 makes it possible for example to establish an average temperature calculated from the data read by each of the temperature sensors 4.
- the temperature sensors 4 are electrically connected by electric son more particularly visible in Figure 2 for example, these cables extending to a sheath 3 which surrounds all of the electrical connection cables.
- the sheath 3 extends from the support element 5 to a connector 31, directly connected to the connection interface 1 1 of the radiator
- the sheath 3 extends along the outlet face 13, to connect the temperature sensors 4 to the connection interface 1 1, without special fixing means, but it is quite possible to fix this sheath, for example against one of the vertical bars 17 of the frame 16.
- the connector 31 is connected to the connection interface 1 1 of the radiator 1, for example to allow the power supply of the temperature sensors 4 and for allow a transfer of the data measured by these sensors to the connection interface
- the temperature measurements can be sent via the connection interface to a radiator control module configured to manage the power supply to this radiator according to the measured temperatures.
- a radiator control module configured to manage the power supply to this radiator according to the measured temperatures. For example, provision may be made to configure the control module with a temperature threshold value to be compared with the temperature values of the temperature sensors 4, and to decrease or increase the supply intensity of the heating elements 18 as a function of comparison with the threshold value.
- the support element 5 here has a rectangular shape and comprises fixing means on radiant elements 12 as will be described below, so as to maintain the temperature sensors 4 facing the outlet face. 13 of radiator 1.
- FIG. 2 is an enlarged view of Figure 1, making more particularly visible the temperature measuring device 2 and the spherical heads of the temperature sensors 4.
- the temperature sensors are connected to electric wires 32 which s' extend mainly longitudinally along one edge of the support member 5 and which have a curved end portion so that the sensor heads at the end of these electrical wires are clear of the edges of the support member.
- the electric wires 32 of each temperature sensor 4 are brought together within the sheath 3 which provides the connection to the connection interface of the radiator 1.
- FIG. 2 also makes it possible to detail the structure of the support element 5.
- the latter has in this embodiment, as indicated above, a rectangular shape. This rectangular shape is defined by vertical uprights 56, and by longitudinal uprights 57.
- the vertical uprights 56 extend along the vertical axis V, facing one of the heating elements 18 of the radiator or one of the bars. vertical, so as not to end up across the passage of the air flow passing through the radiator via the radiating elements 12.
- the longitudinal uprights 57 extend along the longitudinal axis L defining the main extension of the element of support 5. The length of the longitudinal uprights 57 may vary for example depending on the number of temperature sensors 4 arranged on the support element 5.
- the support member 5 also includes intermediate uprights 58, parallel to the vertical uprights 56 and extending perpendicularly from one longitudinal upright 57 to another.
- the intermediate uprights 58 help define a housing 51 for each of the temperature sensors 4 arranged on the support member 5, this housing 51 providing protection to the associated temperature sensor 4 and improving the reliability of the measurement thereof.
- a housing 51 can be formed between two intermediate uprights 58, or between an intermediate upright 58 and a vertical upright 56 for the temperature sensors 4 located at the ends of the support element 5.
- FIG. 3 again shows the temperature measuring device 2 as shown in Figures 1 and 2, but this time alone without the associated radiator.
- FIG. 3 makes it possible to observe the housings 51 within which the temperature sensors 4 are arranged, and defined by the vertical uprights 56, the longitudinal uprights 57 and the intermediate uprights 58. It is also possible to observe that the electric wires 32 connected to the temperature sensors 4 are assembled at one end of the sheath 3 which is centered with respect to the vertical uprights 56. It is understood that the length of each of the electric wires 32 depends on the distance between each temperature sensor 4 and the sheath 3.
- These electric wires 32 extending from the sensor heads are disposed in a gutter 52 formed in the support member 5. More particularly, the gutter 52 may be molded during the manufacture of the gutter. the support element 5. The gutter 52 participates in the positioning and thermal protection of the electric wires 32 within the support element 5.
- the support element 5 comprises at least one fixing member by
- the snap-fastening member extends
- the snap fastening member 6 comprises a tongue 61 extending along the transverse axis T and one or more ramps 62.
- the tongue 61 may have a main dimension of length adapted according to the mode of cooperation with the 'radiant element chosen for the fixing member by
- the ramp or ramps 62 protrude from the tongue 61, being arranged
- the snap-fit fastener as shown in Figure 3 thus has the overall shape of a tree.
- Each ramp 62 has the shape of an inclined plane facilitating the insertion of the temperature measuring device 2 within the radiator as illustrated below. At least one ramp 62 is disposed at the free end of the tongue 61, and the inclined plane that it forms goes in the direction of an enlargement of the vertical or longitudinal dimension, perpendicular to the transverse direction of the tongue, at the as the free end moves away.
- the ramp 62 has a stop wall 63 perpendicular to the transverse direction of the tongue.
- the stop wall 63 is flat and forms a stop surface for locking the temperature measuring device in position on the radiator.
- FIG 4 is a representation of the snap fastening member 6 as shown in Figure 3 partially inserted into a radiating element 12 of a radiator.
- a radiant element 12 seen from the side and a fixing member 6 cooperating with this radiant element are illustrated.
- the radiating element 12 is seen from the side, that is to say by looking at it from a longitudinal angle of view, so that we see in this figure an alternation of vertices 120 capable of being glued or brazed to a first heating element here not shown and recesses 121 capable of being glued or brazed to a second heating element here not visible.
- each radiant element consists of a corrugated sheet and therefore of a succession of fins 122 formed between the tops and the hollows.
- each fin of the radiant element 12 comprises a plurality of louvers 123 projecting from the walls of the radiating elements 12.
- the louvers 123 consist of local deformations of the fin, punched so as to form an opening at through the fin, and they improve the diffusion of the heat created by the radiator by increasing the exchange surface with the air passing through the radiator, in particular by allowing the air to pass from one side to the other of each fin via the openings they form.
- the temperature measuring device more particularly the body
- snap fixing 6 is inserted into one of the radiating elements 12, substantially between two successive fins 122 of this radiant element, in a direction of insertion 70 from the outlet face of the radiator.
- the inclined plane of the ramps 62 facilitates the insertion of the snap-fit fastener 6 through the radiant element.
- the dimension of the ramps is determined so that the maximum vertical dimension of the fixing member is greater than
- the device according to the invention allows ensure that the temperature sensor is held in place with respect to the radiator, the effects of the stops and friction being sufficient to contain the possible movements of the device due to the vibrations of the vehicle during travel.
- the release of the temperature measuring device from the radiator can then only be possible by exerting voluntary traction, causing the louvers to deform.
- Figure 5 shows a second embodiment of the member
- the temperature measuring device comprises two snap-fit fasteners, but it is understood that this number may vary without departing from the context of the invention.
- the snap-fastening member 6 has the overall shape of an arrow, with two ramps 62 and two stop walls 63 arranged on either side of the tongue 61, at the level of the free end of the tab opposite the support element 5.
- main of the tongue 61 is intentionally larger than that of the previous embodiment, so that the snap fastener 6 can perform the function shown in the following figure.
- FIG. 6 is a representation of the fixing member 6 as shown in Figure 5 inserted into the frame of the radiator across one of the radiating elements 12.
- the radiant element 12 is here devoid of louvers, but as previously comprises a succession of fins formed between bumps and hollows respectively made integral with a heating element.
- the second embodiment of the fixing member makes it possible to ensure fixing without the need for louvers formed on the fins.
- the temperature measuring device more particularly the fixing member 6, is inserted within one of the radiating elements 12 in a direction of insertion 70.
- the oblique shape of the ramps 62 formed at the end of the tongue of the fixing member 6 facilitates the insertion of the latter.
- the body of fixing is configured so that the tongue has a specific main dimension, namely a dimension sufficient to ensure the complete passage of the fixing member 6 along the transverse axis T through the radiant element 12.
- the ramps 62 and the stop walls 63 thus emerge at a face 14 opposite to the outlet face 13 of the radiator through which the fixing member is inserted.
- the stop walls 63 of the fixing clip 6 abut against the clearance in the opposite direction against one end of the radiant element 12 located at the level of the face 14.
- the interaction between the stop walls 63 of the fixing 6 and the end of the radiant element 12 makes it possible to prevent the release of the temperature measuring device from the radiator.
- a representation of the face 14 of the radiator, from which the ramps 62 and the stop faces 63 of the fixing member according to the second embodiment emerge, is visible in FIG. 7.
- Figures 6 and 7 are schematic representations which aim to particularly illustrate the particular feature according to which the main dimension of the tongue of the fixing member is large enough so that the fixing member passes fully through the heating element and that the ramp goes beyond this radiant element. It should be understood that the fins present in the passage of the fixing member during its insertion are deformed due to the spacing of each fin with its neighboring fin which is smaller than the corresponding dimension, here vertical, maximum of the ramp. As before, a slight elastic return effect of the fins helps to retain the snap-fastening member in position.
- Figure 8 is a representation of a second embodiment of the
- the second embodiment of the temperature measuring device 2 comprises a support member 5 of different shape from that described.
- the body of the support element 5 is here defined by a pair of vertical uprights 56 and a pair of longitudinal uprights 57 arranged in the form of a quadrilateral and defining between them an orifice forming a housing 51 capable of accommodating the temperature sensor 4.
- the device measurement according to second embodiment comprises two fixing members by
- the fasteners are here aligned in the vertical direction, that is to say in the direction of elongation of the radiating 12 and heating elements 18. They come respectively from one of the longitudinal uprights 57, in opposition to the housing 51.
- the head of the temperature sensor 4 is arranged in the center of the housing 51, so as to be released from the uprights to ensure good capture of the temperature of the air flow leaving the radiator, and it is for this purpose arranged between two branches of electric wires 32 which respectively run along vertical uprights in opposition, in a specific gutter 52. More particularly, the gutter 52 is formed on each vertical upright 56 by rising walls between which the gutter extends. This results in a specific shape of the support member with one half raised relative to the other half and in which the gutters are formed between the walls.
- the support element is sized so that the distance between the vertical uprights 56 is substantially equal to the distance between two heating elements adjacent to the radiator. In this way, when the snap fasteners are inserted into one of the radiant elements 12, the vertical uprights 56 of the support element are positioned opposite the heating elements 18, without penalizing the passage of air through. the radiant elements of the radiator.
- FIG. 9 makes it possible to better describe the gutter 52 of this second embodiment.
- the gutter 52 can for example be obtained during the molding of the support element 5, by a drawer arranged between the uprights forming the raised part of the support element.
- the gutter 52 thus follows the shapes of the support element 5 bypassing the housing 51.
- the electric wires 32 are inserted within the gutter 52 and extend to the temperature sensor 4 suspended in the center of the housing 51 and held by two electric wires 32, each bypassing the housing 51 on either side of the temperature sensor
- the electric wires run along an outer face of the support member, that is to say a face facing away from the radiator.
- the temperature sensor 4 is kept at least a distance of 10 mm from the radiator, in particular depending on the thickness of the support element, here its dimension in the transverse direction.
- the gutter 52 can be closed by a cover
- FIG. 10 is a representation of a third embodiment of the
- the temperature measuring device 2 comprises a temperature sensor not visible in FIG. 10 because it is housed in the support element 5. Unlike the two preceding embodiments, the temperature sensor is completely enclosed in the support element
- the cap 54 is pierced with a plurality of orifices 55.
- the orifices 55 may for example be shaped circular, but any shape is possible, the main thing being to provide access to the temperature sensor to the air flow leaving the radiator.
- the cap 54 comprises a fixing member 6, still provided with the tongue 61, ramps 62 and stop walls 63.
- the fixing member 6 in FIG. 10 has a shape of arrow but any embodiment of the fixing members 6 presented above is adaptable to this embodiment of the temperature measuring device 2.
- the invention cannot however be limited to the means and configurations described and illustrated here, and it also extends to any equivalent means or configurations and to any technically operative combination of such means.
- the shapes of the support element and / or of the fixing member can be modified without harming the invention, as long as they fulfill the functions described in this document.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
- Air Conditioning Control Device (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1905574A FR3096763B1 (fr) | 2019-05-27 | 2019-05-27 | Radiateur électrique de véhicule automobile équipé d’un dispositif de mesure de température |
| PCT/EP2020/063105 WO2020239423A1 (fr) | 2019-05-27 | 2020-05-11 | Radiateur électrique de véhicule automobile équipé d'un dispositif de mesure de température |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3977022A1 true EP3977022A1 (fr) | 2022-04-06 |
Family
ID=67587879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20727169.3A Withdrawn EP3977022A1 (fr) | 2019-05-27 | 2020-05-11 | Radiateur électrique de véhicule automobile équipé d'un dispositif de mesure de température |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20220080807A1 (fr) |
| EP (1) | EP3977022A1 (fr) |
| CN (1) | CN113727868A (fr) |
| FR (1) | FR3096763B1 (fr) |
| WO (1) | WO2020239423A1 (fr) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD1011493S1 (en) * | 2021-09-03 | 2024-01-16 | Webasto SE | Air heating apparatus |
| KR102852819B1 (ko) * | 2023-06-01 | 2025-08-29 | 자화전자(주) | 차량용 공기가열장치의 후면 커버 조립체 및 이를 포함하는 차량용 공기가열장치 |
| CN121511172A (zh) * | 2023-07-13 | 2026-02-10 | 佑理产业株式会社 | 设置有温度传感器的正温度系数加热器 |
| KR102773410B1 (ko) * | 2023-07-13 | 2025-02-28 | 우리산업 주식회사 | 온도센서가 설치된 ptc 히터 |
| EP4676162A1 (fr) * | 2024-07-04 | 2026-01-07 | MAHLE International GmbH | Appareil de chauffage électrique |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2734348B1 (fr) * | 1995-05-18 | 1997-07-04 | Valeo Thermique Moteur Sa | Echangeur de chaleur muni d'un capteur de temperature pour vehicule automobile |
| US6435017B1 (en) * | 2000-03-16 | 2002-08-20 | Motorola, Inc. | Snap-fit sensing apparatus |
| FR2838599B1 (fr) * | 2002-04-11 | 2004-08-06 | Valeo Climatisation | Dispositif de chauffage electrique, notamment pour appareil de chauffage et ou climatisation de vehicule |
| CN101534624B (zh) * | 2008-03-14 | 2012-10-10 | 富准精密工业(深圳)有限公司 | 散热器组合 |
| CN102434950B (zh) * | 2011-09-15 | 2014-04-30 | 上海贝洱热系统有限公司 | 集成式防护格栅及新能源汽车空调器 |
| JP5532523B2 (ja) * | 2012-01-27 | 2014-06-25 | 株式会社デンソー | 温度センサ支持装置 |
| EP2772375B1 (fr) * | 2013-02-27 | 2017-10-18 | Eberspächer catem GmbH & Co. KG | Dispositif de chauffage électrique pour un véhicule automobile |
| JP6169781B2 (ja) * | 2013-04-28 | 2017-07-26 | ビーワイディー カンパニー リミテッドByd Company Limited | 電気ヒータ、デフロスタ、暖房空調システム及び車輌 |
-
2019
- 2019-05-27 FR FR1905574A patent/FR3096763B1/fr not_active Expired - Fee Related
-
2020
- 2020-05-11 CN CN202080031153.6A patent/CN113727868A/zh active Pending
- 2020-05-11 EP EP20727169.3A patent/EP3977022A1/fr not_active Withdrawn
- 2020-05-11 WO PCT/EP2020/063105 patent/WO2020239423A1/fr not_active Ceased
-
2021
- 2021-11-29 US US17/456,760 patent/US20220080807A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| US20220080807A1 (en) | 2022-03-17 |
| WO2020239423A1 (fr) | 2020-12-03 |
| FR3096763B1 (fr) | 2023-05-12 |
| CN113727868A (zh) | 2021-11-30 |
| FR3096763A1 (fr) | 2020-12-04 |
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