CN218896103U - Packaging structure of sensor probe, sensor and water purifier - Google Patents

Abstract

The utility model relates to the technical field of water quality detection and provides a packaging structure of a sensor probe, the sensor probe, a sensor and a water purifier; wherein, the packaging structure of sensor probe includes: an insulating housing having a receiving cavity; the two probes penetrate through the accommodating cavity, and the front ends of the two probes are positioned on the outer side of the insulating shell; and the sealing piece is attached to the bottom wall of the accommodating cavity so as to seal the gap between the two probes and the insulating shell. According to the packaging structure of the sensor probe, the sensor and the water purifier provided by the embodiment of the utility model, the gap between the probe of the sensor probe and the insulating shell can be effectively sealed, so that the situation that water leaks from the gap between the probe and the insulating shell is avoided, the discussed sealing performance of the sensor is improved, and the accuracy of the sensor probe for detecting an object to be detected is improved.

Description

Packaging structure of sensor probe, sensor and water purifier

Technical Field

The utility model relates to the technical field of water quality detection, in particular to a packaging structure of a sensor probe, the sensor probe, a sensor and a water purifier.

Background

The sensor is a detection device capable of detecting information of a detected/measured object; for example, impurities in a liquid such as water, oil, or gasoline, or dust content in a gas is detected. Accordingly, the sensor is used in a large number of industries.

In general, a sensor senses an object to be detected/carried by a measuring object through a sensor probe, for example, detects the total amount of dissolved solids (Total Dissolved Solids, abbreviated as TDS) in water, a TDS sensor is generally adopted, and the probe of the TDS sensor is inserted into water, so that the TDS value in the water is determined according to a current signal fed back by the TDS probe, and thus the water quality condition is determined.

However, in the related art, the probe of the TDS sensor is inserted into water, and water leaks from the TDS probe due to the water flow pressure, which affects the accuracy of the TDS sensor.

Disclosure of Invention

The present utility model is directed to solving at least one of the technical problems existing in the related art. Therefore, the utility model provides the packaging structure of the sensor probe, which can effectively seal the gap between the probe of the sensor probe and the insulating shell, so that the leakage of water from the gap between the probe and the insulating shell is avoided, the discussed sealing performance of the sensor is improved, and the accuracy of the sensor probe for detecting the object to be detected is improved.

The utility model also provides a sensor probe.

The utility model also provides a sensor.

The utility model also provides a water purifier.

A package structure of a sensor probe according to an embodiment of the first aspect of the present utility model includes:

an insulating housing having a receiving cavity;

the two probes penetrate through the accommodating cavity, and the front ends of the two probes are positioned on the outer side of the insulating shell;

and the sealing piece is attached to the bottom wall of the accommodating cavity so as to seal a gap between the two probes and the insulating shell.

According to the packaging structure of the sensor probe, the sealing element is attached to the bottom wall of the accommodating cavity of the insulating shell; therefore, the sealing piece can seal the gap between the two probes and the insulating shell when the front ends of the two probes penetrate out of the insulating shell, and leakage of liquid from the gap between the probes and the insulating shell can be avoided when the sensor probe is used for detecting objects to be detected, such as liquid; that is, the sealing performance of the sensor probe is improved, so that the accuracy of the sensor probe for detecting the object to be detected is improved.

In addition, the sealing piece is attached to the bottom wall of the accommodating cavity to seal and block the gap between the probe and the insulating shell, compared with the related art, the glue filling process for filling glue in the insulating shell (namely the bottom wall of the accommodating cavity) is saved, and the production cost is saved.

According to one embodiment of the utility model, the sealing element is pressed onto the bottom wall of the receiving chamber.

In the embodiment of the utility model, the sealing element is pressed on the bottom wall of the accommodating cavity, so that the contact tightness of the sealing element and the accommodating cavity can be improved, the sealing effect of the sealing element on the gap between the probe and the insulating shell is improved, and the sealing performance of the sensor probe is improved.

According to an embodiment of the present utility model, the packaging structure of the sensor probe further includes:

the propping piece is arranged in the accommodating cavity and is in interference fit with the accommodating cavity along the axial direction of the accommodating cavity; the end part of the propping piece is propped against the sealing piece so as to press the sealing piece on the bottom wall of the accommodating cavity.

The abutting piece is in interference fit with the accommodating cavity along the axial direction of the accommodating cavity, so that the sealing piece can be tightly abutted and extruded on the bottom wall of the accommodating cavity by the abutting piece in interference fit, the sealing piece can effectively resist the pressure of liquid to be detected, and the sealing performance of the sensor probe can be effectively improved.

According to one embodiment of the utility model, the rear end of the insulating shell is provided with an extrusion part, and the distance between the extrusion part and the bottom wall of the accommodating cavity is smaller than the length of the propping piece along the axial direction of the accommodating cavity; the extrusion part is used for abutting against one end of the abutting piece, which is opposite to the bottom wall of the accommodating cavity.

In the embodiment of the utility model, the distance between the extrusion part and the bottom wall of the accommodating cavity is set to be smaller than the length of the propping piece along the axial direction of the accommodating cavity; thus, the abutting piece is convenient to carry out interference fit with the accommodating cavity along the axial direction of the accommodating cavity, the assembly efficiency of the packaging structure of the sensor probe is improved, the assembly process is saved, and the production cost is saved.

According to one embodiment of the present utility model, a rear cover is connected to the rear end of the insulating housing, and the rear cover is the pressing part.

Through setting up the back lid as extrusion portion, that is to say, the length of supporting the top piece is greater than the degree of depth of holding chamber to when the back lid is installed, the back lid directly extrudees the top piece, can promote the packaging structure's of sensor probe installation assembly efficiency, saves manufacturing cost.

According to one embodiment of the utility model, the pressing part is arranged on the bottom wall of the rear cover, and the pressing part penetrates through the rear end of the accommodating cavity to press the end part of the abutting piece.

According to one embodiment of the utility model, a buckle is arranged on one side of the rear cover, which faces away from the insulating shell, and the buckle is used for being clamped with a wire connection terminal of the sensor probe.

In this way, the buckle is arranged on one side of the rear cover, which is away from the insulating shell, and is used for being clamped with the wire connecting terminal; the connection efficiency of the lead wire and the probe of the sensor probe is improved, and the crimping process between the probe and the lead wire is saved, so that the production cost of the packaging structure of the sensor probe is saved. In addition, the connecting terminal of the buckle and the wire is clamped, so that the connecting part of the wire and the probe can be fixed, the stability of connection of the wire and the probe is improved, the glue filling or secondary injection molding process between the connecting wire and the probe is avoided, and the production cost is saved.

According to one embodiment of the utility model, the pressing part is a first protruding part arranged on the inner peripheral wall of the accommodating cavity, and the rear end of the abutting piece abuts against the first protruding part.

According to one embodiment of the utility model, the circumferential wall of the abutment is provided with a guiding groove, and at least part of the probe is arranged in the guiding groove.

In the embodiment of the utility model, the guide groove is formed in the peripheral wall of the propping piece, and at least part of the probes are arranged in the guide groove, so that the guide groove can play a role in positioning the positions of the two probes; when assembling probe and support the holding intracavity of top piece and sealing member to insulating housing, can be convenient for the probe and the through hole phase-match of insulating housing front end, can make things convenient for the tip of probe to pass insulating housing promptly, promoted the packaging structure's of sensor probe assembly efficiency.

According to one embodiment of the utility model, the probe has a second boss thereon, the second boss being located between the end of the abutment and the seal.

In the embodiment of the utility model, a second protruding part is arranged on the probe; like this, when the assembly, the second bellying can be supported the tip of propping the piece and support between propping piece and the sealing member, can carry out spacingly to the axial displacement of probe along the holding chamber to when installing the packaging structure of sensor probe, inserting to the water route, can effectively avoid the position of probe to change, can improve the accuracy of sensor probe to water quality testing promptly.

A sensor probe according to an embodiment of the second aspect of the present utility model comprises the packaging structure of the sensor probe according to any one of the embodiments of the first aspect of the present utility model and a wire connected to a probe in the packaging structure of the sensor probe.

A sensor according to an embodiment of the third aspect of the present utility model comprises a packaging structure of a sensor probe according to any one of the embodiments of the first aspect of the present utility model, or a sensor probe according to an embodiment of the second aspect of the present utility model.

A water purifier according to an embodiment of the fourth aspect of the present utility model includes the sensor probe package structure according to any one of the embodiments of the first aspect of the present utility model and a waterway board, the sensor probe package structure being connected to the waterway board, and at least a portion of the sensor probe package structure being located in a waterway.

The above technical solutions in the embodiments of the present utility model have at least one of the following technical effects:

attaching a sealing element on the bottom wall of the accommodating cavity of the insulating shell; therefore, the sealing piece can seal the gap between the two probes and the insulating shell when the front ends of the two probes penetrate out of the insulating shell, and leakage of liquid from the gap between the probes and the insulating shell can be avoided when the sensor probe is used for detecting objects to be detected, such as liquid; that is, the sealing performance of the sensor probe is improved, so that the accuracy of the sensor probe for detecting the object to be detected is improved.

In addition, the sealing piece is attached to the bottom wall of the accommodating cavity to seal and block the gap between the probe and the insulating shell, compared with the related art, the glue filling process for filling glue in the insulating shell (namely the bottom wall of the accommodating cavity) is saved, and the production cost is saved.

Further, through pressing the sealing member on the diapire of holding chamber, like this, can improve the inseparable degree of sealing member and holding chamber contact to promote sealing member to shutoff, the sealed effect in clearance between probe and the insulating housing, promoted the sealing performance of sensor probe.

Furthermore, the abutting piece is in interference fit with the accommodating cavity in the axial direction of the accommodating cavity, so that the sealing piece can be tightly abutted and extruded on the bottom wall of the accommodating cavity by the abutting piece in interference fit, the sealing piece can effectively resist the pressure of liquid to be detected, and the sealing performance of the sensor probe can be effectively improved.

Still further, through setting up the buckle in the back lid one side of keeping away from insulating housing, utilize buckle and wire connection terminal looks joint; the connection efficiency of the lead wire and the probe of the sensor probe is improved, and the crimping process between the probe and the lead wire is saved, so that the production cost of the packaging structure of the sensor probe is saved. In addition, the connecting terminal of the buckle and the wire is clamped, so that the connecting part of the wire and the probe can be fixed, the stability of connection of the wire and the probe is improved, the glue filling or secondary injection molding process between the connecting wire and the probe is avoided, and the production cost is saved.

Still further, a second boss is provided on the probe; like this, when the assembly, the second bellying can be supported the tip of propping the piece and support between propping piece and the sealing member, can carry out spacingly to the axial displacement of probe along the holding chamber to when installing the packaging structure of sensor probe, inserting to the water route, can effectively avoid the position of probe to change, can improve the accuracy of sensor probe to water quality testing promptly.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of a package structure of a sensor probe according to an embodiment of the present utility model;

FIG. 2 is an exploded view of a package structure of a sensor probe according to an embodiment of the present utility model;

FIG. 3 is a rear view of a sensor probe provided by an embodiment of the present utility model;

FIG. 4 isbase:Sub>A schematic cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is an enlarged partial schematic view at B in FIG. 4;

FIG. 6 is an enlarged partial schematic view at C in FIG. 4;

FIG. 7 is another cross-sectional schematic view taken along line A-A of FIG. 3;

FIG. 8 is a schematic view of yet another cross-sectional structure taken along line E-E in FIG. 3;

fig. 9 is a partially enlarged schematic view at D in fig. 4.

Reference numerals:

10: a package structure;

100: an insulating housing; 200: a probe; 300: a seal; 400: a pressing member; 500: a rear cover;

101: a receiving chamber; 102: a first boss; 103: a clamping groove; 201: a second protruding portion; 401: a guide groove; 501: an extrusion part; 502: a buckle; 503: a hook.

Detailed Description

Embodiments of the present utility model are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the utility model but are not intended to limit the scope of the utility model.

In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the embodiments of the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In describing embodiments of the present utility model, it should be noted that, unless explicitly stated and limited otherwise, the terms "coupled," "coupled," and "connected" should be construed broadly, and may be either a fixed connection, a removable connection, or an integral connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in embodiments of the present utility model will be understood in detail by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly specified and limited otherwise, a first feature "up" or "down" on a second feature may be that the first and second features are in direct contact, or that the first and second features are in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the embodiments of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

The sensor is a detection device capable of detecting information about an object to be detected. For example, a PH meter can detect the PH of the solution, a conductivity meter can measure the conductivity of the solution, or some sensor can be used to detect the level of contaminants in the gas, etc. Due to these characteristics of the sensor, it is applied in various industries.

Nowadays, with the rapid development of technology, people have higher and higher requirements on quality of life in daily life, and especially pay attention to health problems of diet and drinking water in daily life. Therefore, the requirements for water quality are also increasing. The water purifier is used as equipment capable of purifying impurities in water, and gradually goes into the sight of people.

When the water purifier purifies tap water, in order to judge the quality of the purified tap water, in addition, the filter element of the water purifier is convenient to replace in time, and a sensor is usually arranged in a waterway of the water purifier and used for detecting the total amount of dissolved solids in the purified water of the water purifier, namely a TDS value. And evaluating the water quality purified by the water purifier through the TDS value detected by the TDS sensor. In the embodiment of the present utility model, a TDS sensor probe is described as an example.

It will be appreciated that to detect TDS in water purified by the purifier, the probe of the TDS sensor needs to be inserted or extended into the waterway of the purifier in order to detect the water quality. In the waterway of the purifier, due to the existence of water, certain water pressure exists, water can leak from the TDS probe, and the accuracy of the TDS sensor is affected.

Fig. 1 is a schematic overall structure diagram of a packaging structure of a sensor probe according to an embodiment of the present utility model, fig. 2 is a schematic exploded structure diagram of a packaging structure of a sensor probe according to an embodiment of the present utility model, and fig. 3 is a rear view of a sensor probe according to an embodiment of the present utility model.

Referring to fig. 1 and 2, an embodiment of the present utility model provides a packaging structure 10 of a sensor probe, including: an insulating housing 100, two probes 200 and a seal 300.

In the embodiment of the present utility model, the insulating housing 100 may be integrally injection molded of hard plastic, and the insulating housing 100 has a receiving cavity 101 therein. When specifically arranged, one end of the accommodating cavity 101 may be an open end, and the other end is a closed end; wherein the closed end may be provided with through holes/perforations (e.g., as shown in fig. 3).

It will be appreciated that in embodiments of the present utility model, the overall shape of the insulating housing 100 may be cylindrical, such as that shown in fig. 1. In other examples, the overall shape of the insulating housing 100 may also be triangular, quadrangular, or other polygonal prismatic structures. Alternatively, in some examples, the shape of the insulating housing 100 may also be cylindrical-like, such as an elliptical cylindrical structure. In the embodiment of the present utility model, the specific shape of the insulating housing 100 is not limited.

Wherein, the probe 200 is disposed in the accommodating cavity 101. Specifically, the front end of the probe 200 may pass through a through hole/perforation provided at the closed end of the receiving chamber 101 and extend to the outside of the insulating housing 100.

It should be noted that, the front end of the probe 200 may be the end of the sensor probe package 10 inserted into the waterway when the sensor probe package 10 provided in the embodiment of the present utility model is used. Taking fig. 1 as an example for illustration, the front end of the probe 200 may refer to the end shown in the positive direction of the x-axis in fig. 1.

In this way, the front ends of the two probes 200 are inserted through the through holes/perforations provided at the closed end of the accommodating cavity 101 and extend to the outside of the insulating housing 100, so that a current path is formed between the two exposed probes 200 in the waterway during use, thereby detecting/detecting the TDS content in water.

The probe 200 may be a metal probe 200 made of a metal material such as stainless steel, titanium alloy, or aluminum foil alloy, or a metal alloy material.

It will be appreciated that, referring to fig. 3, in the embodiment of the present utility model, two through holes/perforations at the closed end of the accommodating cavity 101 may be provided, and one of the two probes 200 is inserted into one of the through holes/perforations; the other probe 200 of the two probes 200 is inserted into the other through hole/perforation; in other words, one probe 200 is penetrated corresponding to one through hole/perforation. In this way, the distance between the two probes 200 can be positioned easily, and the aperture ratio of the closed end of the housing chamber 101 can be reduced.

Of course, in other examples, the through hole/perforation at the closed end of the accommodating cavity 101 may be one, for example, an elongated through hole opened along the radial direction of the accommodating cavity 101. Two probes 200 are respectively positioned at two ends of the elongated through hole.

In the embodiment of the present utility model, the sealing member 300 is attached to the bottom wall of the receiving chamber 101 so as to fill and seal the gap between the two probes 200 and the insulating housing 100.

Specifically, in the embodiment of the present utility model, the sealing member 300 may be a rubber pad, a rubber block, a silica gel pad, a silica gel type, a plastic pad, or the like having a certain deformability. As a specific example, in the embodiment of the present utility model, a silica gel pad is described as a specific example.

In the embodiment of the utility model, when the two probes 200 are specifically assembled, the two probes 200 can be firstly penetrated through the silica gel pad, then the probes 200 with the silica gel pad are penetrated into the accommodating cavity 101, the front ends of the probes 200 are penetrated out from the through holes/through holes at the closed end of the accommodating cavity 101, and then the pressure towards the bottom wall of the accommodating cavity 101 is applied to the silica gel pad, so that the silica gel pad is attached to the bottom wall of the accommodating cavity 101, and the gap between the through holes/through holes on the bottom wall of the accommodating cavity 101 and the probes 200 can be completely sealed by the deformation of the silica gel pad, thereby improving the sealing performance of the sensor probe.

In the embodiment of the present utility model, the sealing member 300 may be adhered to the bottom wall of the accommodating chamber 101 by an adhesive layer. In other examples, the seal 300 may also be pressed against the bottom wall of the receiving chamber 101 by a snap ring.

It can be seen that, in the packaging structure 10 of the sensor probe provided in the embodiment of the present utility model, the sealing member 300 is attached to the bottom wall of the accommodating cavity 101 to fill and seal the gap between the through hole/perforation on the bottom wall of the accommodating cavity 101 and the probe 200; compared with the related art, the bottom wall of the accommodating cavity 101 does not need to be subjected to processes such as glue filling or secondary injection molding, and the production cost is saved.

According to the packaging structure 10 of the sensor probe of the embodiment of the utility model, a sealing piece 300 is attached to the bottom wall of the accommodating cavity 101 of the insulating shell 100; in this way, the sealing member 300 can seal the gap between the two probes 200 and the insulating housing 100 when the front ends of the two probes 200 penetrate out of the insulating housing 100, so that leakage of liquid from the gap between the probes 200 and the insulating housing 100 can be avoided when the sensor probe is used for detecting objects to be detected, such as liquid; that is, the sealing performance of the sensor probe is improved, so that the accuracy of the sensor probe for detecting the object to be detected is improved.

In addition, the sealing element 300 is attached to the bottom wall of the accommodating cavity 101 to seal and block the gap between the probe 200 and the insulating housing 100, so that compared with the related art, the glue filling process of filling glue in the insulating housing 100 (namely, the bottom wall of the accommodating cavity 101) is saved, and the production cost is saved.

In an alternative example of the utility model, the seal 300 is pressed onto the bottom wall of the housing cavity 101.

Specifically, in some examples, after the seal 300 is assembled to the bottom wall of the accommodating chamber 101, the seal 300 may be pressed onto the bottom wall of the accommodating chamber 101 by a magnetic attraction member. For example, in the case of integrally injection-molding the insulating housing 100, a metal layer or a permanent magnet may be insert-molded into the housing, and after the sealing member 300 is mounted to the bottom wall of the accommodating chamber 101, a permanent magnet may be provided on a side of the sealing member 300 facing away from the bottom wall of the accommodating chamber 101, so that the sealing member 300 is pressed onto the bottom wall of the accommodating chamber 101 by using attractive force between the permanent magnets.

In the embodiment of the utility model, the sealing element 300 is pressed on the bottom wall of the accommodating cavity 101, so that the contact tightness of the sealing element 300 and the accommodating cavity 101 can be improved, the sealing effect of the sealing element 300 on the gap between the probe 200 and the insulating housing 100 is improved, and the sealing performance of the sensor probe is improved.

Fig. 4 isbase:Sub>A schematic cross-sectional view taken along linebase:Sub>A-base:Sub>A in fig. 3.

Referring to fig. 2 and 4, the package structure 10 of the sensor probe provided in the embodiment of the present utility model further includes: the propping piece 400 is arranged in the accommodating cavity 101, and the propping piece 400 is in interference fit with the accommodating cavity 101 along the axial direction of the accommodating cavity 101; the end of the propping piece 400 is propped against the sealing piece 300 to press the sealing piece 300 on the bottom wall of the accommodating cavity 101.

Specifically, in the embodiment of the present utility model, the propping member 400 may be made of an insulating material, and the propping member 400 may be disposed between the two probes 200. Of course, in some examples, the abutment 400 may also be in a ring-shaped structure, and two probes 200 may be inserted into the abutment 400 in the ring-shaped structure. It will be appreciated that in other examples, a hole may be formed in the abutment member 400 along the axial direction of the accommodating cavity 101, and the probe 200 may be inserted/penetrated into the hole.

It should be understood that, in the embodiment of the present utility model, the interference fit of the abutment 400 with the receiving cavity 101 along the axial direction of the receiving cavity 101 means that two ends of the abutment 400 may be pressed in the axial direction. In a specific arrangement, a row of steps may be disposed along the axial direction on the peripheral wall of the accommodating cavity 101, and a row of protruding edges may be disposed along the axial direction on the peripheral wall of the propping member 400, and the protruding edges and the steps are engaged with each other, so that the propping member 400 is in interference fit with the accommodating cavity 101 along the axial direction. In this way, the end of the abutment 400 can be tightly abutted against the sealing member 300, thereby pressing the sealing member 300 against the bottom wall of the housing cavity 101.

In the embodiment of the utility model, the abutting piece 400 is in interference fit with the accommodating cavity 101 along the axial direction of the accommodating cavity 101, so that the sealing piece 300 can be tightly abutted and extruded on the bottom wall of the accommodating cavity 101 by using the abutting piece 400 in interference fit, and the sealing piece 300 can effectively resist the pressure of the liquid to be detected, thereby effectively improving the sealing performance of the sensor probe.

According to an embodiment of the present utility model, referring to fig. 1, 2 and 4, the rear end of the insulating housing 100 is provided with a pressing portion 501.

Specifically, in the embodiment of the present utility model, the rear end of the insulating housing 100 refers to the end where the sensor probe is connected to the wire. Alternatively, in some examples, the rear end of the insulating housing 100 refers to the sensor probe being located outside of the waterway/pipe (i.e., the end that need not be inserted into the waterway). Specifically, referring to fig. 1 as an example, the rear end of the insulating housing 100 may refer to the end shown in the negative direction of the x-axis in fig. 1.

In the embodiment of the present application, the pressing portion 501 and the insulating housing 100 may be detachably connected. When specifically provided, the pressing portion 501 may be connected to the rear end of the insulating housing 100 by means of threads, a snap 502, or the like. Of course, in some examples, the pressing portion 501 may be connected to the rear end of the insulating housing 100 by a screw.

It should be noted that, the rear end of the probe 200 (i.e., the end opposite to the x-axis direction in fig. 1) needs to be connected to the lead or the signal line of the sensor probe, so in the embodiment of the present utility model, the extrusion portion 501 may be provided with a through hole/through hole, the rear end of the probe 200 may be disposed in the through hole/through hole, and the rear end of the probe 200 is located outside the accommodating cavity 101. In other words, in the embodiment of the present utility model, the rear end of the probe 200 is extended to the outside of the insulating housing 100 through the through hole/penetration hole of the pressing part 501 so as to be connected to the wire of the sensor probe.

In a specific example, referring to fig. 4, the distance between the pressing portion 501 and the bottom wall of the accommodating chamber 101 is smaller than the length of the abutment 400 in the axial direction of the accommodating chamber 101; the pressing portion 501 is configured to abut against an end of the abutting piece 400 facing away from the bottom wall of the accommodating cavity 101.

In other words, in the embodiment of the present utility model, when the package structure 10 of the sensor probe provided in the embodiment of the present utility model is assembled, after the accommodating cavity 101 is configured in the abutting piece 400, the end portion of the abutting piece 400 may be partially protruded from the opening of the accommodating cavity 101. Then, after the pressing portion 501 is mounted to the rear end of the accommodation chamber 101, the inner wall of the pressing portion 501 applies a pressing force to the rear end of the abutment 400, so that the abutment 400 presses the seal 300 against the bottom wall of the accommodation chamber 101.

In the embodiment of the present utility model, the distance between the pressing portion 501 and the bottom wall of the accommodating chamber 101 is set to be smaller than the length of the abutment 400 along the axial direction of the accommodating chamber 101; in this way, the abutting piece 400 is convenient to perform interference fit with the accommodating cavity 101 along the axial direction of the accommodating cavity 101, so that the assembly efficiency of the packaging structure 10 of the sensor probe is improved, the assembly process is saved, and the production cost is saved.

Fig. 5 is a partially enlarged schematic view at B in fig. 4, and fig. 6 is a partially enlarged schematic view at C in fig. 4.

It will be appreciated that referring to fig. 5, according to an embodiment of the present utility model, a rear cover 500 is connected to a rear end of the insulating housing 100, and the rear cover 500 is a pressing part 501.

The material of the rear cover 500 may be the same as that of the insulating case 100. Referring specifically to fig. 6, in the embodiment of the present utility model, the rear cover 500 and the insulating housing 100 may be connected by a clamping manner. For example, as shown in fig. 4 and 6, in a specific installation, the locking groove 103 may be provided in the peripheral wall of the insulating housing 100, and in addition, the locking hook 503 may be provided in the rear cover 500, and in a specific installation, the rear cover 500 may be pressed in the axial direction of the insulating housing 100, so that the locking hook 503 on the rear cover 500 may be locked into the locking groove 103 on the peripheral wall of the insulating housing 100.

It will be appreciated that during pressing of the rear cover 500, the inner wall of the rear cover 500 contacts the rear end of the abutment 400 and presses the abutment 400, thereby pressing the abutment 400 against the seal 300, so that the seal 300 is pressed against the bottom wall of the receiving chamber 101, sealing the through hole/perforation of the bottom wall of the receiving chamber 101.

By setting the rear cover 500 as the pressing portion 501, that is, the length of the abutment member 400 is greater than the depth of the accommodating cavity 101, when the rear cover 500 is mounted, the rear cover 500 directly presses the abutment member 400, so that the mounting and assembling efficiency of the sensor probe packaging structure 10 can be improved, and the production cost can be saved.

It should be understood that, in the present utility model, the clamping groove 103 may be disposed on the inner peripheral wall of the insulating housing 100, and the clamping groove 103 on the rear cover 500 may extend into the accommodating cavity 101 and be clamped with the clamping groove 103 disposed on the inner peripheral wall of the insulating housing 100. In the drawings, the clamping groove 103 is only provided on the outer peripheral wall of the insulating housing 100 as a specific example, and the specific position of the clamping groove 103 is not limited.

Fig. 7 is another sectional view taken along linebase:Sub>A-base:Sub>A in fig. 3.

In another alternative example of the embodiment of the present utility model, referring to fig. 7, a pressing portion 501 is provided on the bottom wall of the rear cover 500, and the pressing portion 501 is provided through the rear end of the accommodating chamber 101 to press against the end of the abutment 400.

That is, in other examples of embodiments of the present utility model, the length of the abutment 400 may also be smaller than the depth of the receiving cavity 101. In a specific arrangement, the sum of the length of the abutment 400 and the length of the pressing portion 501 may be greater than the depth of the accommodating cavity 101.

The pressing portion 501 may be a protrusion or a boss provided on the rear cover 500. During assembly, the protrusions or bosses are pressed against the ends of the abutment 400, thereby pressing the abutment 400 against the seal 300, so that the seal 300 is pressed against the bottom wall of the receiving cavity 101, thereby improving the sealing performance of the seal 300 against the through hole/perforation of the front end of the receiving cavity 101. In other words, in the embodiment of the present utility model, the radial dimension of the pressing portion 501 is smaller than the radial dimension of the accommodating chamber 101, so as to ensure that the pressing portion 501 can extend into the accommodating chamber 101 and press against the end of the abutment 400.

Fig. 8 is a schematic view of still another cross-sectional structure taken along the line E-E in fig. 3.

According to an embodiment of the present utility model, referring to fig. 8, the pressing portion 501 is a first protrusion 102 provided on the inner peripheral wall of the accommodating cavity 101, and the rear end of the abutment 400 abuts against the first protrusion 102.

Specifically, in an embodiment of the present utility model, the first protruding portion 102 may be integrally injection molded with the insulating housing 100. In some examples, the first protrusion 102 may be an annular protrusion provided along a circumference of the inner circumferential wall of the accommodating chamber 101. Of course, in other examples, the first protrusions 102 may be intermittent protrusions, where the intermittent first protrusions 102 are arranged at intervals along a circumference of the inner circumferential wall of the accommodating cavity 101.

It is understood that, when the pressing portion 501 is the first protruding portion 102 provided on the inner peripheral wall of the accommodating chamber 101, the radial dimension of the abutment 400 may be larger than the radial dimension of the first protruding portion 102. Of course, in other examples, the radial dimension of the rear end of the abutment 400 may be greater than the radial dimension of the first boss 102, so that the first boss 102 can act to abut and press against the rear end of the abutment 400.

In further alternative examples of the utility model, with continued reference to fig. 1 and 2, the side of the back cover 500 facing away from the insulating housing 100 is provided with a catch 502, the catch 502 being adapted to snap-fit with the wire connection terminals of the sensor probe.

Specifically, in an embodiment of the present utility model, the buckle 502 may be integrally injection molded with the rear cover 500.

Thus, by providing the clip 502 on the side of the rear cover 500 facing away from the insulating case 100, the clip 502 is engaged with the wire connection terminal; the connection efficiency of the lead wire of the sensor probe and the probe 200 is improved, and the crimping process between the probe 200 and the lead wire is saved, so that the production cost of the packaging structure 10 of the sensor probe is saved.

In addition, the connecting terminal of the buckle 502 and the wire is clamped, so that the connecting part of the wire and the probe 200 can be fixed, the stability of connection of the wire and the probe 200 is improved, the glue filling or secondary injection molding process between the connecting wire and the probe 200 is avoided, and the production cost is saved.

In some alternative examples, referring to fig. 2, a guide groove 401 is provided on the peripheral wall of the abutment 400, and at least part of the probe 200 is provided in the guide groove 401.

Specifically, in the embodiment of the present utility model, the guide groove 401 may be an arc-shaped groove. In other words, the shape of the guide groove 401 may be matched with the shape of the probe 200. For example, the shape of the guide groove 401 is the same as, similar to, or similar to the shape of the probe 200.

It will be appreciated that in embodiments of the present utility model, the length of the probe 200 extends along the axial direction of the receiving cavity 101 or the insulating housing 100. Therefore, in the embodiment of the present utility model, the direction of the guiding groove 401 may also be along the axial direction of the accommodating cavity 101 or the insulating housing 100. In this way, when the packaging structure 10 of the sensor probe provided by the embodiment of the utility model is assembled, the probe 200 can be first embedded into the guide groove 401, so that the probe 200 can be positioned conveniently.

In the embodiment of the present utility model, the probe 200 may be partially inserted into the guide groove 401 in the circumferential direction, or may be entirely inserted into the guide groove 401 in the circumferential direction. Those skilled in the art will appreciate that a portion of the probe 200 in the length direction may pass through the receiving cavity 101, and thus, only a portion of the probe 200 in the length direction is inserted into the guide groove 401.

In the embodiment of the present utility model, the guiding groove 401 is formed on the peripheral wall of the abutment 400, and at least part of the probes 200 is disposed in the guiding groove 401, so that the guiding groove 401 can position the two probes 200; when the probe 200, the abutting piece 400 and the sealing piece 300 are assembled into the accommodating cavity 101 of the insulating housing 100, the probe 200 can be matched with the through hole at the front end of the insulating housing 100 conveniently, namely, the end part of the probe 200 can pass through the insulating housing 100 conveniently, and the assembly efficiency of the sensor probe packaging structure 10 is improved.

Fig. 9 is a partially enlarged schematic view at D in fig. 4.

Referring to fig. 2 and 9, according to an embodiment of the present utility model, the probe 200 has a second protrusion 201 thereon, the second protrusion 201 being located between an end of the abutment 400 and the seal 300.

Specifically, in the embodiment of the present utility model, the second protrusion 201 on the probe 200 may be an annular protrusion integrally formed with the probe 200. In some examples, the second protrusion 201 may also be an annular protrusion formed on the probe 200 by secondarily stamping the probe 200. In some possible examples, the second protruding portion 201 may also be a rubber ring or the like that is sleeved on the peripheral wall of the probe 200.

When the probe packaging structure 10 of the sensor provided by the embodiment of the utility model is assembled, the second protruding part 201 on the probe 200 can be clamped between the sealing element 300 and the propping element 400, and the second protruding part 201 is pressed on the sealing gasket through the propping element 400. Thus, when the sensor probe is mounted to the waterway, the second protruding portion 201 receives the acting forces of the abutting piece 400 and the sealing piece 300, so that the axial position of the probe 200 can be positioned, the probe 200 is prevented from being displaced along the axial direction, and the accuracy of the mounting position of the probe 200 can be improved, thereby improving the accuracy of the detection of the sensor probe.

In the embodiment of the present utility model, the second protrusion 201 is provided on the probe 200; like this, during the assembly, the second bellying 201 can be supported by the tip of supporting piece 400 and support between piece 400 and sealing member 300, can carry out spacing to the displacement of probe 200 along holding chamber 101 axial to when installing, inserting sensor probe's packaging structure 10 to the water route, can effectively avoid the position of probe 200 to change, can improve sensor probe to water quality testing's accuracy promptly.

A sensor probe according to an embodiment of the second aspect of the present utility model comprises the package structure 10 of the sensor probe according to any of the embodiments of the first aspect of the present utility model and a wire connected to the probe 200 in the package structure 10 of the sensor probe.

Specifically, in the embodiment of the present utility model, the wire may be connected with a connection terminal, and the connection terminal may be clamped with the buckle 502 in the packaging structure 10 of the sensor probe, so as to improve the connection efficiency of the wire and the probe 200, and improve the installation efficiency of the sensor probe.

A sensor according to an embodiment of the third aspect of the present utility model comprises the packaging structure 10 of the sensor probe according to any of the embodiments of the first aspect of the present utility model, or the sensor probe according to an embodiment of the second aspect of the present utility model.

A water purifier according to an embodiment of the fourth aspect of the present utility model includes the sensor probe package 10 according to any one of the embodiments of the first aspect of the present utility model and a waterway board, the sensor probe package 10 is connected to the waterway board, and at least part of the sensor probe package 10 is located in the waterway.

Finally, it should be noted that the above-mentioned embodiments are merely illustrative of the utility model, and not limiting. Although the present utility model has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various combinations, modifications, or equivalents may be made to the technical solutions of the present utility model without departing from the spirit and scope of the technical solutions of the present utility model, and the present utility model is intended to be covered in the protection scope of the present utility model.

Claims (12)

1. A packaging structure of a sensor probe, comprising:

an insulating housing (100) having a receiving cavity (101);

the two probes (200) penetrate through the accommodating cavity (101), and the front ends of the two probes (200) are positioned at the outer side of the insulating shell (100);

-a seal (300), said seal (300) being attached to the bottom wall of said housing cavity (101) to seal the gap between two of said probes (200) and said insulating housing (100).

2. The packaging structure of the sensor probe according to claim 1, characterized in that the sealing member (300) is pressed onto the bottom wall of the accommodation cavity (101).

3. The packaging structure of a sensor probe according to claim 2, characterized in that the packaging structure of a sensor probe further comprises:

the propping piece (400) is arranged in the accommodating cavity (101), and the propping piece (400) is in interference fit with the accommodating cavity (101) along the axial direction of the accommodating cavity (101); the end of the propping piece (400) is propped against the sealing piece (300) so as to press the sealing piece (300) on the bottom wall of the accommodating cavity (101).

4. A packaging structure of a sensor probe according to claim 3, characterized in that the rear end of the insulating housing (100) is provided with a pressing portion (501), the distance between the pressing portion (501) and the bottom wall of the accommodating cavity (101) being smaller than the length of the abutment member (400) along the axial direction of the accommodating cavity (101); the pressing part (501) is used for abutting against one end of the abutting piece (400) which faces away from the bottom wall of the accommodating cavity (101).

5. The packaging structure of a sensor probe according to claim 4, wherein a rear end of the insulating housing (100) is connected with a rear cover (500), the rear cover (500) being the pressing portion (501); or alternatively, the process may be performed,

the extrusion part (501) is arranged on the bottom wall of the rear cover (500), and the extrusion part (501) penetrates through the rear end of the accommodating cavity (101) so as to extrude the end part of the abutting piece (400).

6. The packaging structure of the sensor probe according to claim 5, wherein a buckle (502) is arranged on a side of the rear cover (500) facing away from the insulating housing (100), and the buckle (502) is used for being clamped with a wire connection terminal of the sensor probe.

7. The package structure of the sensor probe according to claim 4, wherein the pressing portion (501) is a first protruding portion (102) provided on an inner peripheral wall of the accommodating cavity (101), and a rear end of the abutting piece (400) abuts against the first protruding portion (102).

8. The packaging structure of a sensor probe according to any one of claims 3 to 7, wherein a guiding groove (401) is provided on a peripheral wall of the abutment member (400), and at least part of the probe (200) is provided in the guiding groove (401).

9. The packaging structure of a sensor probe according to any of the claims 3-7, characterized in that the probe (200) has a second protrusion (201) thereon, the second protrusion (201) being located between the end of the abutment (400) and the seal (300).

10. A sensor probe comprising the packaging structure of the sensor probe according to any one of claims 1-9 and a wire connected to a probe (200) in the packaging structure (10) of the sensor probe.

11. A sensor, characterized by comprising a packaging structure (10) of a sensor probe according to any of claims 1-9, or a sensor probe according to claim 10.

12. A water purifier comprising the sensor probe packaging structure (10) according to any one of claims 1-9 and a waterway board, wherein the sensor probe packaging structure (10) is connected to the waterway board, and at least part of the sensor probe packaging structure (10) is located in the waterway.

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