FR3044561A1 - FILTER HOLDER, FILTER DEVICE AND METHOD FOR MANUFACTURING FILTER HOLDER - Google Patents

Abstract

The filter holder (10) for a particulate filter having a body (105) comprises: - a particle filter attachment means (110), - a radio identification chip (115) configured to record and transmit information representative of an identifier of the filter holder, this chip being positioned in the body of the filter holder by injection. In embodiments, the filter holder (10) has a shape of revolution cylinder, the chip (115) being bent and positioned at the periphery of the body. In embodiments, the radio identification chip (115) is configured to record and output information representative of a filter analysis result.

Description

TECHNICAL FIELD OF THE INVENTION

The present invention relates to a filter holder, a filter device and a method of manufacturing a filter holder. It applies, in particular, to the traceability of manufacturing, sampling, analysis and archiving of particulate filters.

STATE OF THE ART

The detection of the presence of particles harmful to the health of operators on a site, and in particular on a construction site, is today achieved by the positioning of particulate filters on this site.

These particles are then counted in the laboratory, the result of this count indicating the presence or absence of a risk related to the respiration of these particles.

This result is written on a certificate which can then be archived. The disadvantage of these systems is that the certificate is likely to be lost or the filter may be lost. For proof reasons, access to the filter may be essential for an expertise and a count of the number of particles on the filter.

In general, the current systems do not allow any traceability of the history of the treatments carried out with a filter.

OBJECT OF THE INVENTION

The present invention aims to remedy all or part of these disadvantages. For this purpose, according to a first aspect, the present invention provides a filter holder for a particle filter comprising a body, which comprises: a particle filter attachment means, a radio identification chip configured to record and to transmit information representative of an identifier of the filter holder, this chip being positioned in the body of the filter holder by injection. The use of a radio identification chip enables the recording and the contactless transmission of the stored information. This chip also allows automatic reading of the stored information that can interact with an information system without this information being manually entered in the information system. Finally, the injection of the chip into the body of the filter holder makes inseparable the filter, the filter holder and the radio-identification chip. It results from this inability to separate the three elements that any attempt to recover the chip causes the destruction of the filter holder.

In embodiments, for injecting the chip, the chip is inserted into a mold of a portion of the body of the filter holder, this filter holder being formed by injecting material into the mold.

These embodiments make it possible to make the chip and the filter body inseparable.

In embodiments, the chip is mounted on a chip carrier, the chip support material being miscible with the filter carrier material upon injection into the mold to form the filter holder body.

In embodiments, the chip support material and the filter holder body material have a melt temperature of the same order of magnitude.

In embodiments, the filter holder object of the present invention has a shape of revolution cylinder, the chip being bent and positioned at the periphery of the body.

These embodiments allow a facilitated interaction between the chip and a chip reader, this chip reader can be positioned facing any part of the periphery of the body.

In embodiments, a curved surface of the chip is positioned opposite a curved periphery of the body, the curved surface and the curved periphery being curved in the same direction.

In embodiments, the radio identification chip is configured to record and transmit information representative of a manufacturing parameter.

These embodiments make it possible to trace the manufacture of the filter holder.

In embodiments, the radio identification chip is configured to record and transmit information representative of a filter parameter.

These embodiments make it possible to trace the sample taken by the filter associated with the filter holder.

In embodiments, the radio identification chip is configured to record and transmit information representative of a filter analysis parameter.

These embodiments make it possible to carry out a traceability of the analysis carried out on the filter associated with the filter holder.

In embodiments, the radio identification chip is configured to record and output information representative of a filter analysis result.

These embodiments make it possible to record the result of the analysis directly on the filter holder.

In embodiments, the radio identification chip is configured to record and transmit information representative of a filter identifier.

These embodiments make it possible to authenticate the filter associated with the filter holder in order to avoid any fraudulent replacement or modification of the filter.

In embodiments, the radio-identification chip stores at least one piece of information in a non-rewritable memory, each other piece of information being stored in a rewritable memory.

These embodiments make it possible to make non-modifiable information recorded on the chip.

According to a second aspect, the present invention aims a filtration device, which comprises a filter holder object of the present invention and a filter attached to the filter holder.

Since the aims, advantages and particular characteristics of the device forming the subject of the present invention are similar to those of the filter holder which is the subject of the present invention, they are not recalled here.

According to a third aspect, the present invention relates to a method of manufacturing a filter holder object of the present invention, characterized in that it comprises: a step of positioning a chip in a mold for manufacturing a filter holder body, - a material injection step into the mold to form the filter holder body, - a step of solidification of the material, the chip being positioned in the filter holder body and - a step recording information representative of a filter holder identifier in a radio identification chip.

Since the aims, advantages and particular characteristics of the process which are the subject of the present invention being similar to those of the filter holder which is the subject of the present invention, they are not recalled here.

BRIEF DESCRIPTION OF THE FIGURES Other advantages, objects and particular features of the invention will emerge from the following nonlimiting description of at least one particular embodiment of the filter holder, the device and the method that are the subject of the present invention. with reference to the accompanying drawings, in which: - Figure 1 shows schematically a particular embodiment of the filter holder object of the present invention; - Figure 2 shows, schematically, a particular embodiment of the device object of the FIG. 3 represents, schematically and in the form of a logic diagram, a particular succession of steps of the method which is the subject of the present invention; FIG. 4 is a schematic representation of an exploded view of a particular embodiment of the invention; device of the present invention, - Figure 5 shows, schematically and in the form of a logic diagram, a success A particular step of the process of the present invention and - Figure 6 schematically shows a particular embodiment of the filter holder object of the present invention.

DESCRIPTION OF EXAMPLES OF EMBODIMENT OF THE INVENTION

This description is given in a nonlimiting manner, each feature of an embodiment being able to be combined with any other feature of any other embodiment in an advantageous manner.

It is already noted that the figures are not to scale.

An information "representative of a" parameter, an encoded, encrypted, signed and / or truncated value of the parameter is called. For example, a character string representative of a client identifier is, for example, the customer's name, the customer's initials or a corresponding numerical reference, in a database, to a customer's name.

FIG. 1, which is not to scale, shows a schematic view of one embodiment of the filter holder 10 which is the subject of the present invention. This filter holder 10 for a particulate filter 20 comprising a body 105, which comprises: a particle filter attachment means 110, a radio identification chip 115 configured to record and to transmit information representative of an identifier of the filter holder 10, this chip 115 being positioned in the body of the filter holder 10 by injection.

The filter 20 is, for example, a filter whose pores have a sizing of the order of 0.45 microns, this filter being made of cellulose ester. This filter 20 has, for example, the shape of a circular pellet adapted to a recess in the filter holder 10.

The filter holder 10 is, for example, a rigid structure having a body 105 of cylindrical shape. This body 105 surrounds an interior volume having two openings, the filter 20 being positioned in this interior volume between the two openings.

When filtration takes place, one of these openings is connected to an air pump, so that suction takes place at the other opening, forcing air to pass through the filter 20 for the purpose. to collect, at this filter 20, particles suspended in the sucked air.

The filter 20 is suitable, for example, for capturing particles, fibers and in particular asbestos particles suspended in the ambient air of a premises under construction.

The fixing means 110 is, for example, formed by a filter support, as shown in FIG. 4, associated with the filter 20, this assembly being trapped between two outer walls of the filter holder 10, these two outer walls being provided with additional parts of a clipping mechanism. The filter 20 is positioned against the filter support in the inner volume and surrounded by a first outer wall, then the second outer wall is snapped onto the first part so that the inner volume is formed, laterally, by the clipping of the two outer walls.

In variants, the filter 20 is positioned in the interior volume and then covered with a wall during the manufacture of the filter holder 10, this wall being glued or welded to the external structure of the filter holder 10.

In variants, a plurality of filters 20 is fixed to the filter holder 10, these filters 20 being positioned in parallel or in series along the flow of air sucked from the first opening to the second opening of the filter holder 10.

The radio-identification chip 115 is, for example, a chip called "RFID tag" (English Radio Frequency Identification) or "radio-tag". This chip 115 includes an antenna (not shown) for receiving a signal from a chip reader. The chip 115 is encapsulated in a miniature storage or attached to a substrate. The advantage of the RFID technology is that the radio-identification chip 115 is passive, that is to say that no power supply feeds the chip 115, this chip 115 pulling the energy necessary for its operation of the signal strength emitted by the chip reader.

In variants, the radio identification chip 115 is a chip compatible with the NFC (Near Field Communication) technology.

The chip 115 is associated with the body 105 of the filter holder in the following manner: the chip 115 is inserted into a mold for manufacturing at least a part of the body 105 of the filter holder, - material is injected into the mold for forming the filter holder body 105, the chip support forming material 115 in contact with the molten material injected into the mold, the material of this chip support being miscible with the material of the filter holder when the injection into the mold to form the filter holder body 105, - the materials forming the chip support and the filter holder body 105 are mixed, - these materials harden, the chip 115 being integrated into the door body 105 -filtered.

Preferably, the material of the chip support and the material of the filter holder body have a melting temperature of the same order of magnitude. By the same order of magnitude, it is meant that the difference in melting temperatures is less than 10% of the highest melting temperature.

This chip 115 is thus injected into the body 105 of the filter holder 10 during the manufacture of this filter holder 10.

Preferably, the capsule surrounding the chip 115 is formed of a material miscible with a material forming the body 105 at a predetermined temperature, this temperature causing both the melting of the material forming the capsule and the material forming the body 105.

In this way, the chip 115 is integrated in the material of the filter holder 10, which makes the separation of these two elements impossible without breaking the filter holder 10.

This chip 115 is configured to record information representative of an identifier of the filter holder 10. This information is, for example, an alphanumeric character string, this character string representative of: the identifier of the filter holder 10 or - An identification code of the filter holder 10 allowing, via a correspondence table of a database reachable on a data network connected to the reader of the chip 115, to obtain the identifier of the filter holder 10.

This code can be encrypted for security reasons.

In embodiments, such as that shown in Figure 1, the radio identification chip 115 is configured to record and output information representative of a manufacturing parameter.

This information representative of a manufacturing parameter is, for example, an alphanumeric character string representative of: - a production order, that is to say a control number, - a customer name, - a representative date from the receipt of a manufacturing order or the date of manufacture and / or - a batch number to which this filter holder 10 belongs.

In variants, this string of characters is a code allowing, via a table of correspondence of a database reachable on a data network connected to the reader of the chip 115, to obtain the production order, the name of the customer, the date of receipt of order or manufacture and / or the batch number of the filter holder 10.

In variants, this information representative of a manufacturing parameter is, for example, an alphanumeric character string representative of: a type of filter 20, a date representative of the date of assembly of the filter 20 and the carrier; filter 10 and / or - a batch number to which the filter 20 belongs.

In variants, this character string is a code allowing, via a table of correspondence of a database reachable on a data network connected to the reader of the chip 115, to obtain the type of filter 20, the date of assembling the filter 20 and the filter holder 10 and / or the batch number of the filter 20.

Thanks to the filter holder identifier, a user can have access to all the data recorded on a database in connection with this filter holder identifier. In variants, such recorded data is, for example, a certificate of authenticity and identification of the filter holder 10 and the filter 20.

In embodiments, such as that shown in Figure 1, the radio identification chip 115 is configured to record and output information representative of a filter parameter.

This information representative of a filtration parameter is, for example, an alphanumeric character string representative of: a location of filtration, a date and a time of filtration and / or a user name associated with a reader of the chip 115.

In variants, this character string is a code allowing, via a table of correspondence of a database reachable on a data network connected to the reader of the chip 115, to obtain the place of filtration, the date and the time. time of the filtration and / or the user name associated with the reader of the chip 115.

In embodiments, such as that shown in FIG. 1, the radio identification chip 115 is configured to record and transmit information representative of an analysis parameter of the filter 20.

This information representative of an analysis parameter of the filter 20 is, for example, an alphanumeric character string representative of: - a place of analysis, - a date of analysis, - a result of analysis of the particles in the filter 20, in particular a counting result, - a computer and / or geographical location of the analysis results, - a geographical location of the filter 20.

In variants, this string of characters is a code allowing, via a table of correspondence of a database reachable on a data network connected to the reader of the chip 115, to obtain the place of analysis, the date of analysis, the analysis result, the computer and / or geographical location of the results and / or the geographical location of the filter.

In embodiments, such as that shown in Figure 1, the radio identification chip 115 is configured to record and transmit information representative of a filter identifier.

This filter identifier is, for example, a code generated from a photograph of the filter 20 fixed to the filter holder 10. In variants, this identifier is an alphanumeric character string printed on the filter 20.

In embodiments, such as that shown in Figure 1, which the radio-identification chip 115 stores at least one piece of information in a non-rewritable memory, each other piece of information is stored in a rewritable memory.

In embodiments, such as that shown in Figure 1, to position the chip 115, a portion of the body 105 of the filter holder is melted, the chip being injected into this melted portion before this portion solidifies.

These embodiments correspond to the positioning of the chip 115 after the manufacture of the filter holder 10.

In embodiments, such as that shown in FIG. 1, the filter holder 10 has a shape of revolution cylinder, the chip 115 being bent and positioned at the periphery of the body 105.

The shape of a cylinder of revolution facilitates the creation of seals associated with the filter holder 10, these seals having a circular opening complementary to the external shape of the filter holder 10.

The chip 115 has, for example, a curved surface so that when this surface is projected on a specific plane, this surface has a shape of a circular arc. The positioning of this chip 115 is preferably carried out in such a way that the point of inversion of the curvature is positioned as close as possible to the external face of the body 105.

In embodiments, such as that shown in Figure 1, a curved surface of the chip 115 is positioned facing a curved periphery of the body 105, the curved surface and the curved periphery being bent in the same direction.

In embodiments not shown, the present invention is directed to a filtration system comprising: a filtration device as represented in FIG. 2 and an air suction pump to be connected to an opening of the filter holder .

In particular embodiments, the filtration system comprises a radio-identification chip reader for reading at least one piece of information transmitted by the radio-identification chip 115 when the reader is close to said chip 115.

This chip reader is, for example, an ultra-portable RFID reader connected to a portable terminal communicating via a Bluetooth connection, Zigbee or WiFi for example. This chip reader acts as a peripheral of the communicating portable terminal and, as such, is compatible with the operating system implemented by the communicating portable terminal, such an operating system belonging to the iOS or Android family.

This chip reader acts in the place of a keypad type input interface or the combination of a mouse or a touch screen and a virtual keyboard.

Thus, as understood by reading the description of FIG. 1, the present invention allows a traceability of the filter 20 from the manufacture of the filter holder 10 to the archiving of this filter holder 10.

This traceability of the archiving allows the simplified execution of inventory operations of the archived filters 20 and filter-holders 10. It is possible, in particular, to search for a filter holder 10 by indicating on the reader the desired filter holder identifier 10 and then to move the reader next to each filter holder 10 in order to receive the identifier therein. the received identifier corresponds to the desired identifier.

FIG. 2 diagrammatically shows a particular embodiment of the filtration device 30. This device 30 comprises a filter holder 10 as described with reference to FIG. 1 and a filter 20 fixed to this filter holder 10.

FIG. 4 diagrammatically shows a particular embodiment of the filter holder 50 which is the subject of the present invention. This filter holder 50 comprises: a first molded filter holder body 505 having an opening configured to be traversed by ambient air; a second molded filter holder body 520 fixed to the first filter holder body 505; this second filter holder body 520 comprising: - an opening through which ambient air enters the opening of the first filter holder body 505 and a radio identification chip 525; filter 515 supporting a filter 510, this assembly being positioned between the opening of the second filter holder body 520 and the first filter holder body 505 and a third molded filter holder body 530 having an opening configured to be traversed by ambient air having passed through the filter 510, the third filter holder body 530 being configured to be attached to a suction head of the ambient air.

FIG. 3 diagrammatically shows a particular flow diagram of the process 40 of the present invention. This method 40 for manufacturing a filter holder 10 as described with reference to FIG. 1 comprises: a step 405 for positioning a chip in a mold for manufacturing a filter holder body; step 410 of injection of material into the mold to form the filter holder body, - a step 415 of solidification of the material, the chip being positioned in the filter holder body and a step 420 of recording of information representative of a filter holder identifier in a radio identification chip. The positioning step 405 is performed, for example, by inserting the chip into a mold intended to allow the manufacture of the filter body by injecting material into the mold. Preferably, the chip is mounted on a chip support having a melting temperature of the same order of magnitude as the melting temperature of the material injected into the mold. The material of the chip support is miscible with the material injected into the mold. The injection step 410 is performed, for example, by a melt injection head, from a reservoir of such material, in the mold until the mold is filled. The solidification step 415 is carried out by total or partial cooling of the filter support body thus molded. The recording step 420 is, for example, performed by a RFID reader in write mode.

FIG. 5 diagrammatically shows a particular flow diagram of the process of the present invention. This method of integrating a radio identification chip into a structure comprises: a step 605 of positioning a chip, carried by a chip support formed of a first material, in a mold for manufacturing the chip; structure, a step 610 for injecting a second material, miscible with the second material at an injection temperature of the second material, in the mold, a step 615 for melting the chip support in contact with the second material injected into the mold and - a step 620 of solidifying the first and second materials, the chip being integrated into the solidified structure.

In preferred embodiments, the melting temperature of the first material is lower than the injection temperature of the second material.

In preferred embodiments, the melt temperature of the first material is lower than the melt temperature of the second material.

In preferred embodiments, the mold has a curved periphery, the chip and the chip support having a complementary curvature, this chip and chip support being positioned, during the positioning step, facing the periphery. curved mold.

In preferred embodiments, the method 60 includes a step 625 of recording information in the radio-identification chip

FIG. 6 diagrammatically shows a particular embodiment of the body 705 of the filter holder 70. This body 705 of the filter holder 70 comprises a radio identification chip 710 integrated into the filter holder body by the implementation of the method of integration of a radio-identification chip object of the present invention.

In preferred embodiments, the radio identification chip 710 is configured to record and transmit information representative of a manufacturing parameter.

In preferred embodiments, the radio identification chip 710 is configured to record and transmit information representative of a filter parameter.

In preferred embodiments, the radio identification chip 710 is configured to record and transmit information representative of an analysis parameter of a filter positioned in the filter holder.

In preferred embodiments, the radio identification chip 710 is configured to record and transmit information representative of a filter analysis result.

Claims (12)

A filter holder (10) for a particulate filter (20) comprising a body (105), characterized in that it comprises: - a particle filter attachment means (110), - a chip (115) of radio-identification configured to record and to transmit information representative of an identifier of the filter holder, this chip being positioned in the body of the filter holder by injection. 2. Filter holder (10) according to claim 1, wherein, to inject the chip (115), the chip is inserted into a mold of a body portion (105) of the filter holder, the filter holder being formed by injecting material into the mold. The filter holder (10) according to claim 2, wherein the chip (115) is mounted on a chip carrier, the material of said chip carrier being miscible with the carrier material during injection into the mold to form the filter holder. 4. Filter holder (10) according to claim 3, wherein the material of the chip support and the material of the filter holder have a melting temperature of the same order of magnitude. 5. Filter holder (10) according to one of claims 1 to 4, which has a form of revolution cylinder, the chip (115) being bent and positioned at the periphery of the body. The filter holder (10) according to claim 5, wherein a curved surface of the chip (115) is positioned facing a curved periphery of the body (105), the curved surface and the curved periphery being curved according to a same direction. The filter holder (10) according to one of claims 1 to 6, wherein the radio identification chip (115) is configured to record and output information representative of a manufacturing parameter. The filter holder (10) according to one of claims 1 to 7, wherein the radio identification chip (115) is configured to record and output information representative of a filter parameter. 9. Filter holder (10) according to one of claims 1 to 8, wherein the chip (115) of radio-identification is configured to record and to transmit information representative of a filter analysis parameter. The filter holder (10) of claim 9, wherein the radio identification chip (115) is configured to record and output information representative of a filter analysis result. 11. Device (30) for filtration, characterized in that it comprises a filter holder (10) according to one of claims 1 to 10 and a filter (20) attached to the filter holder. 12. Method (40) for manufacturing a filter holder (10) according to one of claims 1 to 10, characterized in that it comprises: - a step (405) for positioning a chip in a mold for manufacturing a filter holder body, - a step (410) for injecting material into the mold to form the filter holder body, - a step (415) for solidifying the material, the chip being positioned in the filter holder body and - a step (420) for recording information representative of a filter holder identifier in a radio identification chip.