Fluid guiding module and fluid guiding system having at least two fluid guiding modules

Abstract

The present invention relates to a fluid guiding module and a fluid guiding system having at least two fluid guiding modules, the guiding module comprising: a shell having a sensor chamber located therein and extending along a first axis and having a first end and a second end axially separated from the first end; a first area for connecting to a second guiding module, which is located on a first outer side of the shell and extends along a second axis and has a first redirection channel, which extends along the second axis and has a first end and a second end axially separated from the first end; an inlet channel, fluidically connecting the first channel end to the first chamber end, wherein the first channel is suitable for fluidically connecting to an outlet channel of the second guiding module; a second area for connecting to a third guiding module, which is located on a second outer side of the shell and extends along a third axis parallel to the second axis; an outlet channel, fluidically connecting the second area to the first chamber end, wherein the outlet channel is suitable for connecting to the inlet channel of the third guiding module.

Description

Technical Field

[0001] The invention relates to a fluid guiding module and a fluid guiding system having at least two fluid guiding modules. Background Art

[0002] In analytical measurement technology, especially in the fields of water management and environmental analysis and in industries such as food technology, biotechnology and the pharmaceutical industry, as well as for various laboratory applications, measurands (e.g. pH value, conductivity or concentration) of analytes (e.g. ions or dissolved gases) in gaseous or liquid measuring media are of vital importance. These measurands can be detected and evaluated using sensors with relevant analyte sensitivity.

[0003] In order to supply the measurement medium to be analyzed to the sensor, the sensor is installed in a flow-through fitting. The flow-through fitting enables the measurement medium to flow against the sensor in a predetermined manner. Depending on the number of measured quantities to be measured, one or more sensors are accommodated in the flow-through fitting. The fluid channel provided in the flow-through fitting ensures that the measurement medium to be analyzed flows against the sensor from a defined direction.

[0004] The circulation fitting can be constructed as a multi-sensor fitting or a fluid guiding system with multiple fluid guiding modules. The multi-sensor fitting can accommodate multiple sensors, which are arranged in different chambers of the multi-sensor fitting. The chambers are connected to each other so that a channel for guiding the fluid is formed through the multi-sensor fitting. The fluid guiding system includes any number of fluid guiding modules, wherein each fluid guiding module includes a chamber for accommodating a sensor. These fluid guiding modules are interconnected so that these fluid guiding modules form a channel for guiding the fluid through all chambers of the fluid guiding system. The measuring medium must flow against the sensor from a specified direction depending on the sensor used in the fluid guiding module. Typically, the flow against the sensor flows from top to bottom or from bottom to top along the extension axis of the flow.

[0005] In a multi-sensor assembly, the flow direction is predetermined by fixedly arranged sensor chambers and fluid channels. However, in a fluid guiding system with fluid guiding modules, the flow direction between the fluid guiding modules must be changed between the fluid guiding modules, depending on the sensors used in the fluid guiding modules.

[0006] Known fluid guiding systems that enable the redirection of measured media do not have optimal sealing properties at the connection between two modular flow-through fittings. In addition, dead volumes may occur in the redirection area, which increases the risk of contaminant deposits, algae formation, etc. Furthermore, the sealing element is often not positioned optimally between the two modular flow-through fittings, which complicates the insertion of the sealing element and reduces its service life. Summary of the invention

[0007] It is therefore an object of the present invention to provide a fluid guiding module which is simple, safe and durable.

[0008] The fluid guiding module according to the present invention comprises:

[0009] a housing having a sensor chamber therein, the sensor chamber extending along a first axis and having a first chamber end and a second chamber end axially spaced from the first chamber end,

[0010] a first connection region for connecting to a second fluid guiding module, the first connection region being located on a first outer side of the housing and extending along the second axis and having a first redirecting channel extending along the second axis and having a first redirecting channel end and a second redirecting channel end axially spaced from the first redirecting channel end,

[0011] - a chamber inlet channel fluidly coupling the first redirecting channel end to the first chamber end of the sensor chamber,

[0012] wherein the first redirecting channel is adapted to be fluidically coupled to a chamber outlet channel of a second fluid guiding module,

[0013] a second connection region for connection to a third fluid guiding module, which second connection region is located on a second outer side of the housing and extends along a third axis parallel to the second axis,

[0014] a chamber outlet channel fluidly coupling the second connection area to the first chamber end of the sensor chamber,

[0015] wherein the chamber outlet channel is suitable for being connected to a chamber inlet channel of a third fluid guiding module, wherein the first redirecting channel and / or the second redirecting channel are each suitable for accommodating a sealing unit, so that when the fluid guiding module is connected to the second fluid guiding module and / or the third fluid guiding module, the sealing unit is in each case arranged to contact the fluid transferred between the fluid guiding module and the second fluid guiding module and / or the fluid transferred between the fluid guiding module and the third fluid guiding module.

[0016] The fluid guiding module according to the invention enables a fluid guiding module to be easily and securely connected to another fluid guiding module. Furthermore, the fluid guiding module allows, when two fluid guiding modules are connected to each other, to minimize the dead volume between the two connected fluid guiding modules. The fluid guiding module makes it possible to avoid excessive compression of the seal when two fluid guiding modules are connected to each other.

[0017] In one embodiment of the invention, the first connection area and the second connection area each protrude from the housing and are each suitable for being surrounded by the connection element, for example, the first connection area and the second connection area may each have a dovetail cross section. This enables two fluid guiding modules connected to each other to be firmly pressed together.

[0018] In one embodiment of the invention, the second connection region has a second redirecting channel, which extends along the third axis and has a first redirecting channel end and a second redirecting channel end, which is axially spaced from the first redirecting channel end. The assembly of the two fluid guiding modules is simplified by two redirecting channels that can be connected to each other.

[0019] In one embodiment of the invention, the first redirecting channel and / or the second redirecting channel is formed by a circumferential side wall and a bottom wall, the circumferential side wall delimiting the redirecting channel, wherein the bottom wall is configured as a plane surface and is suitable for accommodating the sealing unit. This allows the sealing element not to be squeezed when two fluid guiding modules are connected.

[0020] The fluid guiding system according to the present invention comprises:

[0021] - a first fluid guiding module according to the invention,

[0022] - a second fluid guiding module according to the invention,

[0023] a sealing unit for sealing a first connection region of the first fluid guiding module with a second connection region of the second fluid guiding module,

[0024] a connecting element for connecting a first connecting region of a first fluid guiding module to a second connecting region of a second fluid guiding module,

[0025] - wherein the first fluid guiding module and the second fluid guiding module are adapted to fluidly couple the chamber outlet channel of the second fluid guiding module to the chamber inlet channel of the first fluid guiding module through the first redirecting channel of the first fluid guiding module.

[0026] The fluid guiding system enables safe and easy handling of the fluid guiding modules.Thus, depending on the field of application, any number of fluid guiding modules can be assembled into an application-specific fluid guiding system.

[0027] According to one embodiment of the invention, the sealing unit comprises a sealing element and a positioning element, wherein the sealing element and the positioning element are complementary and are suitable for filling the first redirection channel or the second redirection channel, so that the sealing element is positioned in the first redirection channel or the second redirection channel by the positioning element so that the sealing element is aligned with the chamber inlet channel or the chamber outlet channel. Thus, if it is not desired to redirect the measured medium, the dead volume between the two fluid guiding modules is minimized.

[0028] In one embodiment of the invention, the sealing unit comprises a first section and a second section, the first section having an opening, wherein the first section and the second section are arranged such that when the sealing unit is inserted into the first redirection channel or the second redirection channel, the opening is adapted to be aligned with the chamber inlet channel or the chamber outlet channel. Thus, if it is not desired to redirect the measured medium, the dead volume between the two fluid guiding modules is minimized.

[0029] In one embodiment of the invention, the sealing unit has a sealing lip and a redirection opening, wherein the sealing lip is designed such that when the sealing unit is arranged in the first redirection channel or the second redirection channel, the sealing lip extends from the first redirection channel end to the second redirection channel end. Thus, if redirection of the measured medium is desired, the dead volume between the two fluid guiding modules is minimized.

[0030] In one embodiment of the invention, the sealing unit has a sealing edge extending around the redirecting opening. The sealing edge can save material when producing the sealing unit.

[0031] In one embodiment of the present invention, the first connection region and the second connection region of the first fluid guiding module and the second fluid guiding module each have a dovetail cross section, and the connecting element has a shape complementary to the connection region. Thus, a secure connection is achieved between the two fluid guiding modules to be connected. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] The invention is explained in more detail based on the following description of the accompanying drawings. The accompanying drawings show:

[0033] Figure 1 : A schematic longitudinal sectional view of a fluid guiding module according to the present invention;

[0034] Figure 2 : A schematic longitudinal sectional view of an embodiment of a fluid guiding module according to the present invention;

[0035] Figure 3 : Figure 1 A schematic side view of a fluid directing module is shown;

[0036] Figure 4: A longitudinal sectional view of a fluid guiding system according to the present invention;

[0037] Figure 5 : Pass through Figure 4 A cross-sectional view of the fluid guiding system shown;

[0038] Figure 6 : Sealing unit;

[0039] Figure 7 : Another embodiment of the sealing unit;

[0040] Figure 8 : Alternative embodiments of the sealing unit;

[0041] Fig. 9 : Figure 8 Another embodiment of the sealing unit shown;

[0042] Fig.10 : Figure 8 Another embodiment of the sealing unit shown;

[0043] Fig.11 : Figure 8 Another embodiment of the sealing unit shown; and

[0044] Fig.12 : Schematic diagram of another alternative embodiment of the sealing unit. DETAILED DESCRIPTION

[0045] Figure 1 A fluid guiding module 101 is shown, which has a housing 102. In the housing 102, there is a sensor chamber 103, which extends along a first axis Y1. The sensor chamber 103 has a first chamber end 104 and a second chamber end 105, which is axially spaced from the first chamber end 104. The sensor chamber 103 has a sensor inlet and is suitable for receiving a sensor through the sensor inlet. The sensor is introduced into the sensor chamber 103 from above along the axis Y1. For example, the sensor chamber 103 is suitable for accommodating a pH sensor, a redox sensor, a flow sensor or a chlorine sensor.

[0046] The fluid guiding module 101 has a first connection region 106 for connecting to the second fluid guiding module 201 or the third fluid guiding module 301 .

[0047] The second fluid guiding module 201 and the third fluid guiding module 301 are identical to the fluid guiding module 101, which for simplicity is referred to as the first fluid guiding module 101 in the following. That is, the second fluid guiding module 201 and the third fluid guiding module 301 have the same features as the first fluid guiding module 101. Therefore, all the following features described with respect to the first fluid guiding module 101 are also considered to be described with respect to the second fluid guiding module 201 and the third fluid guiding module 301. The reference numerals for the features of the second fluid guiding module 201 have a 2 in the hundreds place, and the reference numerals for the features of the third fluid guiding module 301 have a 3 in the hundreds place. The reference numerals for the features of the fluid guiding modules 101, 201, 301 are identical in both the tens and the ones place.

[0048] The first connection area 106 is located on the first outer side 107 of the housing 102 and extends along the second axis Y2. The first connection area 106 has a first redirection channel 108, which extends along the second axis Y2. The redirection channel 108 has a first redirection channel end 109 and a second redirection channel end 110, which is axially spaced from the first redirection channel end 109.

[0049] The fluid guiding module 101 comprises a chamber inlet channel 111 which fluidly couples the first redirecting channel end 109 to the first chamber end 104 of the sensor chamber 103. The first redirecting channel 108 is adapted to be fluidly connected to a chamber outlet channel of a second fluid guiding module 201 .

[0050] The fluid guiding module 101 has a second connection area 113 for connection to a third fluid guiding module 301. The second connection area 113 is located on a second outer side 114 of the housing 102 and extends along a third axis Y3 parallel to the second axis Y2.

[0051] The fluid guiding module 101 comprises a chamber outlet channel 112 fluidly coupling the second connection area 113 to the first chamber end 104 of the sensor chamber 103. The chamber outlet channel 112 is adapted to be connected to a chamber inlet channel of the third fluid guiding module 301 .

[0052] In an alternative embodiment of the fluid directing module 101, the chamber inlet channel 111 fluidly connects the second redirecting channel end 110 to the second chamber end 105 of the sensor chamber 103 (see Figure 4 1 and the right fluid guiding module 301 in FIG. 1 ). In this embodiment, the chamber outlet channel 112 fluidically connects the first chamber end 104 of the sensor chamber 103 to the second connection area 113 (see FIG. 1 ). Figure 4 The middle fluid guiding module 101 and the right fluid guiding module 301).

[0053] exist Figure 1 In the fluid guiding module 101 shown in FIG. 1 , the second connection area 113 has a second redirecting channel 116. The second redirecting channel 116 extends along the third axis Y3 and has a first redirecting channel end 117 and a second redirecting channel end 118, which is axially spaced from the first redirecting channel end 117. In this embodiment, the first redirecting channel 108 and the second redirecting channel 116 are each suitable for receiving half of the sealing unit 2.

[0054] In contrast, Figure 2 In the fluid guiding module 101 shown in FIG. 1 , the second connecting region 113 does not have the second redirecting channel 116. However, in this embodiment, the first redirecting channel 108 is formed deeper in the housing 102 relative to the first outer side 107 so as to receive the sealing unit 2 by itself. Figure 4 and Figure 5 The fluid guiding module 101 shown in FIG. 1 has a first redirecting channel 108 and a second redirecting channel 116 , the fluid guiding module 201 has a first redirecting channel 208 and a second redirecting channel, and the fluid guiding module 301 has a first redirecting channel and a second redirecting channel.

[0055] Figure 3 A side view of the fluid guiding module 101 is shown, and the first redirecting channel 108 is explained in detail. The first redirecting channel 108 is defined by a circumferential side wall 120 and a bottom wall 121 which delimit the first redirecting channel 108. The bottom wall 121 is configured as a plane surface and is suitable for receiving the sealing unit 2. The bottom wall 121 is advantageously flat, i.e. it has no irregularities and grooves. This prevents the formation of deposits on the bottom wall 121. The bottom wall 121 advantageously directly abuts against the side wall 120 which delimits the first redirecting channel 108. The second redirecting channel 116 can be formed similarly to the first redirecting channel 108.

[0056] The first redirecting channel 108 allows to accommodate the sealing unit 2, which extends along the side wall 120 and can be deformed inwardly from the side wall 120 into the first redirecting channel 108. Therefore, when two fluid guiding modules are connected and sealed by the sealing unit 2, the sealing unit 2 cannot be squeezed in a damaging manner. The side wall 120 is advantageously flat, i.e. it has no irregularities and grooves. This prevents the formation of deposits on the side wall 120.

[0057] Figure 4A fluid guiding system 1 is shown, wherein a first fluid guiding module 101, a second fluid guiding module 201 and a third fluid guiding module 301 are arranged in series. Arranged in series here means that the chamber outlet channel 112 of the second fluid guiding module 201 and the first fluid guiding module 101 are fluidly coupled to the corresponding chamber inlet channel 111 of the first fluid guiding module 101 and the chamber inlet channel of the third fluid guiding module 301. Thus, a system channel is formed, which extends from the chamber inlet channel 211 to the chamber outlet channel 312 through the fluid guiding modules 101, 201, 301 and thus through the fluid guiding system 1. The system channels include the chamber inlet channel 211 of the second fluid guiding module 201, the chamber inlet channel 111 of the first fluid guiding module 101, the chamber inlet channel of the third fluid guiding module 301, the sensor chambers 203, 103, 303, the chamber outlet channel of the second fluid guiding module 201, the chamber outlet channel 112 of the first fluid guiding module 101, the chamber outlet channel 312 of the third fluid guiding module 301, the first redirecting channel 208 of the second fluid guiding module 201, the first redirecting channel 108 of the first fluid guiding module 101, and the first redirecting channel of the third fluid guiding module 301, and optionally the second redirecting channel of the second fluid guiding module 201, the second redirecting channel 116 of the first fluid guiding module 101, and the second redirecting channel of the third fluid guiding module 301, which are in Figure 4 An embodiment of a fluid guiding module is shown in FIG.

[0058] The sealing unit 2 is arranged in each case between the second fluid guiding module 201, the first fluid guiding module 101 and the third fluid guiding module 301. The sealing unit 2 is suitable for sealing two adjacent fluid guiding modules so that no measured medium can leak to the outside. "To the outside" here means outside the system channel of the fluid guiding system 1. Of course, if less than three or more than three fluid guiding modules are used in the fluid guiding system, the sealing unit 2 is arranged between the individual fluid guiding modules.

[0059] The fluid guiding system 1 allows two side-by-side fluid guiding modules 101 , 201 , 301 to be adapted to jointly form a redirecting channel closed toward the outside through the second redirecting channel 116 of the first fluid guiding module 101 and the first redirecting channel 108 of the third fluid guiding module 301 .

[0060] exist Figure 4 and Figure 5In the fluid guiding modules 101, 201, 301 shown in FIG. 1 , first connection region 206 of fluid guiding module 201, first connection region 106 of fluid guiding module 101, first connection region 301 and second connection region 201, second connection region 113 of fluid guiding module 101, second connection region 313 of fluid guiding module 301 all protrude from the housing 102 of fluid guiding module 201, the housing 102 of fluid guiding module 101, and the housing 301 of fluid guiding module 301. First connection region 106 and second connection region 113 are suitable for being surrounded by connection element 8. For example, first connection region 106 and second connection region 113 both have a dovetail-shaped cross section (see FIG. 1 ). Figure 5 The first connection region 106 and the second connection region 113 may also have other cross-sectional shapes which are suitable for pressing together the fluid guiding modules connected by the connecting element 8 .

[0061] The connecting element 8 has a cross section that is complementary to the dovetail cross section of the first connecting region 106 and the second connecting region 113 (see Figure 5 ). Therefore, if Figure 5 As shown in , the connecting element 8 is suitable for pressing the first connecting area 106 of the first fluid guiding module 101 and the second connecting area of ​​the second fluid guiding module 201 together, and is suitable for pressing the second connecting area 113 of the first fluid guiding module 101 and the first connecting area of ​​the third fluid guiding module 301 together.

[0062] The connecting element 8 is embodied in two parts, for example. In this case, the two parts of the connecting element 8 are suitable for being connected to each other by a tensioning element, for example a thread (not shown).

[0063] Figure 6 An embodiment of the sealing unit 2 is shown. In this embodiment, the sealing unit 2 comprises a sealing element 3 and a positioning element 4. The sealing element 3 is, for example, an O-ring. The sealing element 3 is, for example, made of rubber. The positioning element 4 is, for example, a plastic element. The positioning element 4 allows the O-ring to not slip. Therefore, the sealing element 3 remains positioned between the chamber outlet channel and the chamber inlet channel of the two fluid guiding modules in the fluid guiding system 1. The positioning element 4 and the O-ring are designed so that the first redirection channel and / or the second redirection channel of the fluid guiding module are filled with the positioning element 4 and the O-ring. The positioning element 4 also allows filling of "unnecessary" redirection channels, thereby reducing the dead volume in the fluid guiding system 1. If as Figure 4, the chamber outlet channel of the second fluid guiding module 201 is aligned with the chamber inlet channel 111 of the first fluid guiding module 101 (i.e. can be directly connected by the sealing element 3 without redirecting the measured medium), then the redirection channel is "unnecessary". In other words, in this case, the measured medium will not be redirected. Figure 7 An alternative embodiment of the sealing unit 2 is shown. In this embodiment, the sealing unit 2 is formed integrally. The sealing unit 2 is made of rubber, for example. The sealing unit 2 has a first section 3' and a second section 4' with an opening. The first section 3' is suitable for sealing the chamber outlet channel of the second fluid guiding module 201 with the chamber inlet channel 111 of the first fluid guiding module 101 (see also Figure 4 The second section 4' is suitable for filling the first redirecting channel and / or the second redirecting channel of the fluid guiding module (see also Figure 4 ). Thus, the second section 4' enables the first section 3' to be positioned in the first redirection channel and / or the second redirection channel so that the opening is aligned with the chamber outlet channel and the chamber inlet channel of the two fluid guiding modules to be connected, and thereby reduces the dead volume in the first redirection channel and / or the second redirection channel. Figure 7 As shown in the figure, the second section 4' is optionally a third section 3" with an opening. The third section 3" is identical to the first section 3'. Since there is no need to consider the orientation of the sealing unit 2, the third section 3" makes it easy for the user to assemble the fluid guiding system 1. In other words, the sealing unit 2 ensures that in the fluid guiding system 1 in which the chamber outlet channel 111 is aligned with the chamber inlet channel 211, the sections 3', 3" are always positioned so that the opening is aligned between the chamber inlet channel 211 and the chamber outlet channel 111.

[0064] Figure 8 Another alternative embodiment of the sealing unit 2 is shown. The sealing unit 2 has a sealing lip 5 and a redirecting opening 6. The sealing lip 5 is suitable for sealing the chamber outlet channel 112 of the first fluid guiding module 201 with the chamber inlet channel of the third fluid guiding module 301 (see also Figure 4 and Figure 5 ). Redirection channel 6 is suitable for redirecting the measured medium from chamber outlet channel 112 of first fluid guiding module 201 to chamber inlet channel of third fluid guiding module 301. Redirection here means from first redirection channel end 117, 217 of second redirection channel 116 of fluid guiding module 101, 201 to fluid guiding module 101, (at Figure 4The present invention relates to a change in the second redirecting channel end 110 of the first redirecting channel 108 of the fluid guiding module 101 (partially shown in the figure), the second redirecting channel end 310 of the first redirecting channel of the fluid guiding module 301, or a change in the second redirecting channel end 118, 218 of the second redirecting channel 116 of the fluid guiding module 101, 201 to the first redirecting channel end 109 of the first redirecting channel 108 of the fluid guiding module 101 (not shown), the first redirecting channel end 309 of the first redirecting channel of the fluid guiding module 301.

[0065] Fig. 9 A sealing unit 2 with a sealing rim 5' is shown. The sealing unit 2 is made of rubber, for example. The sealing rim 5' extends around the redirection opening 6. The sealing rim 5' is formed to be suitable for contacting the bottom wall 121 of the redirection channel 108, 116. The sealing rim 5' is designed not to contact the side wall 120 of the redirection channel 108, 116. The sealing rim 5' is laminar. The sealing rim 5' allows material saving when producing the sealing unit 2.

[0066] Fig.10 and Fig.11 An embodiment of the sealing unit 2 is shown, in which at least one holding button 9 is arranged on the sealing lip 5. The holding button 9 is preferably arranged so that it does not protrude into the redirection opening 6. For example, Fig.10 As shown in , a plurality of retaining buttons are arranged circumferentially on the outer edge of the sealing lip 5. Alternatively, as Fig.11 As shown in , a holding button 9 is arranged at each end of the sealing unit 2. The holding button 9 is adapted to be received by a complementary opening in a fluid guiding module 101, 201, 301. The holding button 9 has the advantage that the sealing lip 5 of the sealing unit 2 is stably held in the fluid guiding module 101, 201, 301, more precisely in the redirecting channel of the fluid guiding module.

[0067] Fig.12 An alternative sealing unit 2 is shown, which has a sealing plate 10, a sealing thread 11 and a through hole 12, which are arranged in the sealing plate 10. The through hole 12 is arranged so that when the sealing unit 2 is positioned between two fluid guiding modules 101, 201, 301, the chamber outlet channel of one fluid guiding module is connected to the chamber inlet channel of another fluid guiding module. The connecting element 8 is suitable for fixing the sealing unit 2 and the two fluid guiding modules to be connected in place. The sealing thread 11 travels around the through hole. In this way, the sealing unit 2 is connected to the fluid guiding module in a leak-proof manner. The advantage of the sealing unit 2 is that the sealing unit 2 is easy to install in the fluid guiding system 1.

[0068] Depends on the design of the fluid guiding module, that is, depends on whether the chamber inlet channel 111 of the first fluid module 101, the chamber inlet channel 211 of the second fluid module 201, and the chamber inlet channel of the third fluid module 301 lead to the first redirecting channel end 109 or the second redirecting channel end 110 of the first redirecting channel 108 of the first fluid module 101, the first redirecting channel end 209 or the second redirecting channel end 210 of the first redirecting channel 208 of the second fluid module 201, the first redirecting channel end or the second redirecting channel end of the first redirecting channel of the third fluid module 301 and / or depends on the chamber outlet channel 112 of the first fluid module 101, the second fluid The chamber outlet channel of module 201 and the chamber outlet channel 312 of the third fluid module 301 connect to the first redirecting channel end 117 or the second redirecting channel end 118 of the second redirecting channel 116 of the first fluid module 101, the first redirecting channel end or the second redirecting channel end of the second redirecting channel of the second fluid module 201, the first redirecting channel end or the second redirecting channel end of the second redirecting channel of the third fluid module 301, and therefore whether the measuring medium in the fluid guiding system 1 is intended to be redirected between two consecutive fluid guiding modules 101, 201, 301, and the sealing unit 2 is used between the successively arranged fluid guiding modules 101, 201, 301.

[0069] The use of sealing unit 2 in fluid guiding system 1 has the advantage that fluid guiding modules 101, 201, 301 can be connected in a leak-proof and space-saving manner. Thus, in particular if a redirection is to be implemented between two fluid guiding modules, sealing unit 2 makes it unnecessary to place additional space-consuming redirecting components between the fluid guiding modules.

[0070] An advantage of the fluid guiding modules 101, 201, 301 is that the sealing unit 2 is not subjected to shearing when the fluid guiding modules 101, 201, 301 are joined together. This is particularly important when the sealing unit comprises an elastic material, such as rubber. Figure 3 It can be seen that the first redirecting channel and / or the second redirecting channel are designed so that the sealing unit 2 can expand into the center of the first redirecting channel and / or the second redirecting channel. Figure 3 It can also be seen that the first redirecting channel and / or the second redirecting channel has an area around the chamber inlet channel and / or the chamber outlet channel, which area is bounded by the side wall 120 and is suitable for receiving the sealing unit 2. This peripheral area is preferably planar. In other words, this peripheral area is open to facilitate the expansion of the sealing unit inwards, i.e. in the direction of the chamber inlet channel and / or the chamber outlet channel, and / or does not restrict the expansion of the sealing unit inwards.

Claims

1. A first fluid guiding module (101), the fluid guiding module comprising: a housing (102) having a sensor chamber (103) therein, the sensor chamber (103) extending along a first axis (Y1) and having a first chamber end (104) and a second chamber end (105), the second chamber end (105) being axially spaced from the first chamber end (104), a first connection region (106), the first connection region (106) being used to connect to a second fluid guiding module (201), the first connection region (106) being located on a first outer side (107) of the housing (102) and extending along a second axis (Y2), and having a first redirecting channel (108), the first redirecting channel (108) extending along the second axis (Y2) and having a first redirecting channel end (109) and a second redirecting channel end (110), the second redirecting channel end (110) of the first redirecting channel (108) being axially spaced from the first redirecting channel end (109) of the first redirecting channel (108), a chamber inlet passage (111) fluidly coupling the first redirecting passage end (109) to the first chamber end (104) of the sensor chamber (103), wherein the first redirecting channel (108) is adapted to be fluidically coupled to a chamber outlet channel of the second fluid guiding module (201), a second connection region (113), the second connection region (113) being used for connecting to a third fluid guiding module (301), the second connection region (113) being located on a second outer side (114) of the housing (102) and extending along a third axis (Y3) parallel to the second axis (Y2), a chamber outlet channel (112) fluidly coupling the second connection region (113) to the first chamber end (104) of the sensor chamber (103), wherein the chamber outlet channel (112) is suitable for being connected to the chamber inlet channel of the third fluid guiding module (301), wherein the first redirecting channel (108) and / or the second redirecting channel (116) are both suitable for accommodating a sealing unit (2), so that when the first fluid guiding module (101) is connected to the second fluid guiding module (201) and / or the third fluid guiding module (301), the sealing unit (2) is configured to contact the fluid transferred between the first fluid guiding module (101) and the second fluid guiding module (201) and / or the fluid transferred between the first fluid guiding module (101) and the third fluid guiding module (301), The connecting element (8) is configured to press together a first connecting region (106) of the first fluid guiding module (101) and a second connecting region (113) of the second fluid guiding module (201), and to press together a first connecting region (113) of the first fluid guiding module (101) and a first connecting region (301) of the third fluid guiding module, The first redirecting channel (108) and / or the second redirecting channel (116) are formed by a circumferential side wall (120) and a bottom wall (121), wherein the circumferential side wall (120) defines the first redirecting channel (108) and the second redirecting channel (116), wherein the bottom wall (121) is configured as a planar surface and is suitable for receiving the sealing unit (2).

2. The first fluid guiding module (101) according to claim 1, wherein: The first connection area (106) and the second connection area (113) both protrude from the housing (102) and are suitable for being surrounded by the connection element (8).

3. The first fluid guiding module (101) according to claim 1 or 2, wherein: The second connection area (113) includes a second redirecting channel (116), which extends along the third axis (Y3) and has a first redirecting channel end (117) and a second redirecting channel end (118), and the second redirecting channel end (118) of the second redirecting channel (116) is axially separated from the first redirecting channel end (117) of the second redirecting channel (116).

4. A fluid guiding system (1), comprising: The first fluid guiding module (101) according to claim 1, A second fluid guiding module (201), a sealing unit (2), the sealing unit (2) being used to seal the first connection area (106) of the first fluid guiding module (101) and the second connection area of ​​the second fluid guiding module (201), a connecting element (8) for connecting the first connecting region (106) of the first fluid guiding module (101) to the second connecting region of the second fluid guiding module (201), wherein the first fluid guiding module (101) and the second fluid guiding module (201) are adapted to fluidically couple the chamber outlet channel of the second fluid guiding module (201) to the chamber inlet channel (111) of the first fluid guiding module (101) via the first redirecting channel (108) of the first fluid guiding module (101), The connecting element (8) is configured to press together a first connecting region (106) of the first fluid guiding module (101) and a second connecting region (201) of the second fluid guiding module (201), and to press together a second connecting region (113) of the first fluid guiding module (101) and a first connecting region (301) of the third fluid guiding module (301), The first redirecting channel (108) and / or the second redirecting channel (116) are formed by a circumferential side wall (120) and a bottom wall (121), wherein the circumferential side wall (120) defines the first redirecting channel (108) and the second redirecting channel (116), wherein the bottom wall (121) is configured as a planar surface and is suitable for receiving the sealing unit (2).

5. The fluid guiding system (1) according to claim 4, wherein: The sealing unit (2) comprises a sealing element (3) and a positioning element (4), wherein the sealing element (3) and the positioning element (4) are constructed to be complementary and suitable for filling the first redirecting channel (108) of the first fluid guiding module (101), the first redirecting channel of the second fluid guiding module (201), the first redirecting channel of the third fluid guiding module (301) or the second redirecting channel (116) of the first fluid guiding module (101), the second redirecting channel of the second fluid guiding module (201), and the second redirecting channel of the third fluid guiding module (301), so that the sealing element (3) is positioned in the first fluid guiding module (101) by the positioning element (4). 01), the first redirecting channel of the second fluid guiding module (201), the first redirecting channel of the third fluid guiding module (301), or the second redirecting channel (116) of the first fluid guiding module (101), the second redirecting channel of the second fluid guiding module (201), or the second redirecting channel of the third fluid guiding module (301), so that the sealing element (3) is aligned with the chamber inlet channel (111) of the first fluid guiding module (101), the chamber inlet channel of the third fluid guiding module (301), or the chamber outlet channel (112) of the first fluid guiding module (101), or the chamber outlet channel of the second fluid guiding module (201).

6. The fluid guiding system (1) according to claim 4, wherein: The sealing unit (2) comprises a first section (3') and a second section (4'), the first section (3') having an opening, wherein the first section (3') and the second section (4') are arranged so that when the sealing unit (2) is inserted into the first redirecting channel (108) of the first fluid guiding module (101), the first redirecting channel of the second fluid guiding module (201), the first redirecting channel of the third fluid guiding module (301) or the second redirecting channel (116) of the first fluid guiding module (101), the second redirecting channel of the second fluid guiding module (201), and the second redirecting channel of the third fluid guiding module (301), the opening is suitable for being aligned with the chamber inlet channel (111) of the first fluid guiding module (101), the chamber inlet channel of the third fluid guiding module (301) or the chamber outlet channel (112) of the first fluid guiding module (101), and the chamber outlet channel of the second fluid guiding module (201).

7. The fluid guiding system (1) according to claim 4, wherein: The sealing unit (2) has a sealing lip (5) and a redirecting opening (6), wherein the sealing lip (5) is designed so that when the sealing unit (2) is arranged in the first redirecting channel (108) or the second redirecting channel (116), the sealing lip (5) extends from a first redirecting channel end (109) of the first redirecting channel (108) and a first redirecting channel end (117) of the second redirecting channel (116) to a second redirecting channel end (110) of the first redirecting channel (108) and a second redirecting channel end (118) of the second redirecting channel (116).

8. The fluid guiding system (1) according to claim 7, wherein: The sealing unit (2) has a sealing edge (5'), which extends around the redirecting opening (6).

9. The fluid guiding system (1) according to claim 6, wherein: The first connection area (106) and the second connection area (113) of the first fluid guiding module (101) and the first connection area and the second connection area of ​​the second fluid guiding module (201) all have a dovetail-shaped cross-section, and the connecting element (8) has a shape complementary to the first connection area (106) and the second connection area (113) of the first fluid guiding module (101) and the first connection area and the second connection area of ​​the second fluid guiding module (201).

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