Shell assembly and sensor

Abstract

The utility model discloses a housing assembly and a sensor, the housing assembly comprises a first housing and a second housing, the first housing comprises a main body part and a connecting part, and the main body part is a main bearing structure of the first housing and is used for installing a sensing assembly. The connecting part is connected to the main body part and protrudes out of the surface of the main body part, so that the connecting part and the second shell are installed in a matched mode. The second shell is provided with a containing space and further provided with an installation hole, the first shell penetrates through the installation hole, fixation between the first shell and the second shell is achieved, and the situation that the sensing assembly is damaged due to the fact that the first shell shakes in the second shell is avoided. The second shell is connected in an integrated injection molding mode, so that the structural strength of the second shell is guaranteed, the production process is simplified, and the production cost is reduced. The sealing element is at least partially connected to the second shell in a melting manner, so that the sealing performance between the connecting part and the mounting hole is ensured, external moisture or dust is prevented from invading, and the overall protection grade of the sensor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a housing component and a sensor. Background Art

[0002] Sensors, as important components in modern industry, automobiles, aerospace and other fields, their performance and stability are directly related to the operating efficiency and safety of the entire system. In these fields, sensors often need to work in harsh environments, such as high temperature, humidity, dust, vibration, etc. Therefore, their sealing technology is particularly important. In related technologies, gaskets, rubber seals and other structures are added between the sensor housing and the module, and then a locking seal is achieved through screws, snap-fit ​​structures, etc. Although this sealing method is simple and easy to operate, it has high requirements on the precision and process of the sensor housing, resulting in low product production efficiency and high scrap rate, and high production costs. Utility Model Content

[0003] The main purpose of the utility model is to provide a housing assembly and a sensor, aiming to solve the technical problem of reducing the production cost of the sensor while ensuring the sealing performance of the sensor.

[0004] To achieve the above-mentioned object, the present invention provides a housing assembly suitable for a sensor, wherein the sensor includes a sensing assembly, and the housing assembly includes:

[0005] A first housing includes a main body and a connecting portion, wherein the sensor assembly is mounted on the main body, and the connecting portion is connected to the main body and protrudes from the main body;

[0006] The second shell has an accommodating space, the first shell is accommodated in the accommodating space, the second shell further has a mounting hole connected to the accommodating space, the connecting portion is passed through the mounting hole, so that the first shell is fixed to the second shell;

[0007] The second shell is connected in an integral injection-molded manner, the connecting portion comprises a sealing member, and at least a portion of the sealing member is melt-connected to the second shell.

[0008] In some embodiments, the sensing component includes a chip and a magnet, and the main body is provided with a first mounting slot and a second mounting slot, the first mounting slot is used to install the chip, and the second mounting slot is used to install the magnet, and the first mounting slot and the second mounting slot are located on opposite sides of the main body.

[0009] In some embodiments, the sensor includes a detection end and an electrical connection end arranged opposite to each other, and the main body is provided with a fixing structure, which is located at one end of the main body close to the detection end, and the fixing structure covers at least part of the first mounting groove so that the chip is fixed in the first mounting groove.

[0010] In some embodiments, the connecting portion includes a first connecting member and a second connecting member, the sealing member is provided on the circumference of each of the first connecting member and the second connecting member, and the first connecting member and the second connecting member are located on opposite sides of the main body and adjacent to the first mounting groove and the second mounting groove;

[0011] The second shell includes a plurality of mounting holes, namely a first hole and a second hole, the first hole and the second hole are arranged opposite to each other, the first connecting member is inserted into the first hole, and the second connecting member is inserted into the second hole, and each sealing member is located on the side of the first hole and the second hole close to the inner wall of the accommodating space.

[0012] In some embodiments, the sensor includes a detection end and an electrical connection end arranged opposite to each other, and the first shell also includes an extension portion connected to the main body, the extension portion is located at the end of the main body away from the detection end, and the extension direction of the extension portion intersects with the extension direction of the main body, and the end of the extension portion away from the main body is close to the electrical connection end.

[0013] In some embodiments, the connecting portion also includes a third connecting member, which is located on the side of the extension portion away from the main body portion, and the third connecting member is located at the end of the extension portion away from the electrical connection end. The sealing member is provided on the peripheral side of the third connecting member, and the second shell is provided with a third hole connected to the accommodating space, and the third connecting member is inserted into the third hole.

[0014] In some embodiments, the second shell further includes a mounting boss provided at an end away from the detection end, and the mounting boss is arranged opposite to the extension portion, and the mounting boss is configured to be able to fix the second shell to an external device.

[0015] In some embodiments, the mounting boss is provided with a through hole, and the second shell further includes an adapter, which is sleeved in the through hole, and the hardness of the material used for the adapter is greater than the hardness of the material used for the second shell, and the adapter is configured to be connectable to an external device so that the second shell is fixed to the external device.

[0016] In some embodiments, the first shell is connected by integral injection molding.

[0017] A second aspect of the present invention further provides a sensor, comprising:

[0018] The housing assembly described in any one of the above embodiments;

[0019] A sensor assembly is mounted on the housing assembly, and the sensor assembly includes a chip and a magnet, the magnet is used to sense the position of the object to be measured to generate different magnetic fields, and the chip is used to obtain changes in the magnetic field of the magnet; and

[0020] The conductive wire has one end electrically connected to the chip and the other end electrically connected to an external device.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] In the technical solution of this utility model, the second housing is connected to the first housing through integral injection molding, which improves the connection reliability and sealing performance of the two. Furthermore, by providing a connecting portion on the first housing, the connecting portion can firmly fix the first housing in the injection mold during the injection molding process of the second housing, preventing the first housing from tilting relative to the second housing. Furthermore, after the second housing is molded, the connecting portion can be embedded in the second housing, preventing the first housing from shaking inside the second housing, thereby making the connection between the first and second housings more secure.

[0023] In addition, the provision of the seal can provide a sealing effect between the connection part and the second shell. Specifically, during the injection molding process of the second shell, the seal melts and mixes with the unsolidified second shell. Therefore, after the second shell is molded, the seal can form a whole with the second shell, thereby achieving effective sealing of the sensor, preventing foreign matter such as liquid or dust from entering the accommodating space and affecting the normal operation of the sensor component, and further improving the service life of the sensor. Compared with the related art that uses threaded fasteners and rubber sealing rings to achieve sealing between the sensor shells, the present application uses the temperature during the injection molding process of the second shell to melt the seal and become one with the second shell to achieve sealing, which has a better sealing effect and reduces the degree of manual participation in the sensor production process, thereby reducing the labor cost of the sensor, and eliminating materials such as threaded fasteners and rubber sealing rings, effectively reducing the material cost of the sensor. Compared with the related art that uses welding to connect the sensor shell, the present application uses the seal melted during the injection molding process of the second shell to achieve sealing, which is simpler and easier to operate, effectively improving the production efficiency of the sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0025] Figure 1 This is a schematic structural diagram of a sensor in a first viewing angle in one embodiment of the present invention;

[0026] Figure 2 This is a schematic structural diagram of a sensor at a second viewing angle in one embodiment of the present invention;

[0027] Figure 3 In one embodiment of the present invention, the sensor Figure 2 Sectional view cut along the AA direction;

[0028] Figure 4 In one embodiment of the present invention, the sensor Figure 3 An enlarged schematic diagram of the part B in the middle;

[0029] Figure 5 This is a structural diagram of the second housing in one embodiment of the present utility model;

[0030] Figure 6 This is a structural schematic diagram of a first perspective view of the sensor assembly after being installed in the first housing in one embodiment of the present invention;

[0031] Figure 7 This is a structural schematic diagram from a second perspective of an embodiment of the present invention in which the sensor assembly is installed in the first housing.

[0032] Description of Figure Numbers:

[0033] Sensor 10;

[0034] Housing assembly 100;

[0035] a first housing 110;

[0036] Main body 111; first mounting slot 1111; second mounting slot 1112; fixing structure 1113;

[0037] Connecting portion 112; first connecting member 1121; second connecting member 1122; third connecting member 1123;

[0038] Sealing member 113; extension portion 114;

[0039] Second housing 120;

[0040] Accommodation space 121;

[0041] Mounting hole 122; first hole 1221; second hole 1222; third hole 1223;

[0042] Mounting boss 123; through hole 1231; adapter 124;

[0043] Sensing component 200; chip 210; magnet 220;

[0044] Conductive wire 300;

[0045] Detection end 400;

[0046] Electrical connection terminal 500 .

[0047] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0049] See also Figures 1 to 7The present invention provides a housing assembly 100, which can be applied to a sensor 10, and the sensor 10 includes a sensor assembly 200. It should be noted that the sensor 10 can be a temperature sensor 10, a humidity sensor 10, a pressure sensor 10, a displacement sensor 10, a flow sensor 10, an acceleration sensor 10, and a speed sensor 10, etc. The speed sensor 10 is taken as an example for description below. The housing assembly 100 includes a first housing 110 and a second housing 120. The first housing 110 includes a main body 111 and a connecting portion 112. The main body 111 is the main load-bearing structure of the first housing 110 and is used to install the sensor assembly 200. The connecting portion 112 is connected to the main body 111 and protrudes from the surface of the main body 111 to facilitate the installation with the second housing 120. That is, in some embodiments, the connecting portion 112 can be a portion extending from the main body 111, and the connecting portion 112 and the main body 111 can be integrally formed. In some embodiments, the connecting portion 112 and the main body 111 can be made of the same material. In other embodiments, the connecting portion 112 and the main body 111 can be made of different materials. The second housing 120 is provided with a receiving space 121. The dimensions of the receiving space 121 are adapted to the outer dimensions of the first housing 110, ensuring that the first housing 110 can be tightly accommodated therein. The second housing 120 is also provided with a mounting hole 122. The mounting hole 122 is designed to allow the connecting portion 112 of the first housing 110 to pass through, thereby achieving positioning, limiting, and fixing between the first housing 110 and the second housing 120, and preventing the first housing 110 from shaking within the second housing 120 and causing damage to the sensor assembly 200. The second housing 120 is connected by integral injection molding. In other words, the second housing 120 is manufactured by integral injection molding, which not only ensures the structural strength of the second housing 120, but also simplifies the production process and reduces production costs. The first housing 110 can be manufactured by injection molding, or it can be manufactured by CNC machine tools or other equipment.

[0050] In addition, the connection portion 112 includes a seal 113, which is at least partially molten to the second housing 120. This seal ensures a tight seal between the connection portion 112 and the mounting hole 122, preventing the intrusion of moisture or dust, thereby enhancing the overall protection level of the sensor 10. Specifically, after the sensor assembly 200 is installed in the first housing 110, a semi-finished product is obtained. This semi-finished product is placed entirely within an injection mold for producing the second housing 120, and the connection portion 112 of the first housing 110 is mated with a positioning structure within the injection mold to secure the semi-finished product. The injection mold is then injected with molten material for producing the second housing 120. The seal 113 partially or completely melts at the residual temperature of the molten material, thereby mixing with the molten material within the injection mold. When the molten material solidifies and forms the second housing 120, the solidified seal 113 forms a single unit with the second housing 120, thereby ensuring a tight seal between the connection portion 112 and the mounting hole 122. It should be noted that in order to ensure that the seal 113 can melt under the residual temperature of the molten material, the thickness of the seal 113 can be gradual (the gradual change can be a curved gradual change, a linear gradual change or a stepped gradual change). In other words, the thickness of the seal 113 on the side away from the connecting portion 112 is less than the thickness of the seal 113 on the side close to the connecting portion 112. The specific thickness of the seal 113 can be designed according to the melting temperature of the material used in the second shell 120.

[0051] Compared with the related art in which the base and the shell for supporting the sensor component 200 are connected by threaded fasteners and a rubber or silicone sealing ring is set between the base and the shell, the present application uses a sealing member 113 to be melt-connected to the second shell 120, which has a better sealing effect and eliminates the setting of threaded fasteners and sealing rings, effectively reducing the material cost of the sensor 10 and the equipment cost of manual or additional equipment assembly of threaded fasteners and sealing rings. Compared with the related art in which the base and the shell for carrying the sensor component 200 are connected and sealed by welding, the present application achieves the sealing of the first shell 110 and the second shell 120 by utilizing the temperature of the molten material to melt at least part or all of the seal 113 during the injection molding process of the second shell 120, and eliminates the possibility of the first shell 110 shaking relative to the second shell 120 by the setting of the connecting portion 112, further enhancing the connection reliability between the first shell 110 and the second shell 120. Compared with the welding process, the present application produces the sensor 10 by injection mold, and can produce multiple sensors 10 at the same time, with higher production efficiency and simpler process.

[0052] See also Figure 6 and Figure 7In some embodiments, the sensor assembly 200 includes a chip 210 and a magnet 220. The magnet 220 includes, but is not limited to, a magnet, a permanent magnet, or other structures capable of generating magnetic field changes. The main body 111 is provided with two mounting slots, which, for ease of description, are defined as a first mounting slot 1111 and a second mounting slot 1112. The first mounting slot 1111 can be used to mount the chip 210, while the second mounting slot 1112 can be used to mount the magnet 220. The first mounting slot 1111 and the second mounting slot 1112 are located on opposite sides of the main body 111. This layout design optimizes internal space utilization, reducing the size of the sensor 10 while ensuring sufficient physical isolation between the chip 210 and the magnet 220 to prevent electromagnetic interference between them, thereby ensuring the measurement accuracy of the sensor 10. The chip 210 receives signals from the magnet 220 and converts them into electrical signals for output. The magnet 220 senses position changes of the object under test and generates corresponding magnetic field changes. The two work together to achieve accurate detection of the target object.

[0053] It is understandable that in some embodiments, the design of the first mounting groove 1111 and the second mounting groove 1112 is not limited to a linear arrangement, but can also be adjusted according to actual application requirements, such as adopting a non-linear arrangement such as an L-shape or a T-shape, to adapt to different installation environments and usage conditions. In addition, in order to improve the stability and reliability of the installation, a snap-fit ​​structure can be set at the bottom or side of the first mounting groove 1111 and the second mounting groove 1112. When the chip 210 or the magnet 220 is placed in the first mounting groove 1111 or the second mounting groove 1112, the snap-fit ​​structure can be automatically locked to prevent loosening or falling off due to vibration and other reasons. In addition, considering the operating temperature range of the chip 210 and the magnet 220, the material of the main body 111 can be a material with good thermal stability, including but not limited to high-temperature resistant plastics or metal alloys, to ensure that the sensor 10 can maintain stable performance even in extreme temperature environments.

[0054] See also Figure 3 、 Figure 6 and Figure 7In some embodiments, the sensor 10 includes a detection end 400 and an electrical connection end 500 that are arranged opposite to each other. The main body 111 is provided with a fixing structure 1113, which is located at one end of the main body 111 close to the detection end 400, and the fixing structure 1113 covers at least a portion of the first mounting groove 1111, so that the chip 210 is fixed to the first mounting groove 1111. The design of the fixing structure 1113 ensures that the chip 210 will not fall off from the first mounting groove 1111 when subjected to external vibration or impact, thereby facilitating the smooth injection molding of the second shell 120, thereby improving the yield of the sensor 10 and ensuring the long-term stability and reliability of the sensor 10. The fixing structure 1113 can be connected to the main body 111 by means of snaps, adhesives or fasteners to ensure the safe fixation of the chip 210.

[0055] It is understandable that in some embodiments, the fixing structure 1113 can be designed in a variety of shapes and materials to adapt to different usage environments and requirements. For example, the fixing structure 1113 can be a metal pressure plate, which is fixed to the main body 111 by screws, and the edge of the pressure plate is designed with an appropriate curvature to avoid damage to the chip 210. In addition, the fixing structure 1113 can also be made of elastic materials, including but not limited to heat-resistant silicone or rubber, and is directly pressed onto the chip 210 through an interference fit, which can not only play a fixing role, but also provide a certain buffering effect to reduce the impact of external impact on the chip 210. The shape of the fixing structure 1113 can be circular, square or other geometric shapes, depending on the shape of the first mounting groove 1111 and the size of the chip 210. In order to improve the fixing effect, the fixing structure 1113 can also be designed with anti-slip texture or protrusions to increase the friction with the surface of the chip 210 and prevent the chip 210 from displacement.

[0056] See also Figure 3 、 Figure 6 and Figure 7In some embodiments, the connecting portion 112 includes a first connecting member 1121 and a second connecting member 1122. Seals 113 are provided around the periphery of the first connecting member 1121 and the second connecting member 1122. The first connecting member 1121 and the second connecting member 1122 are located on opposite sides of the main body 111 and are adjacent to the first mounting groove 1111 and the second mounting groove 1112. The second housing 120 includes a plurality of mounting holes 122, namely a first hole 1221 and a second hole 1222. The first hole 1221 and the second hole 1222 are arranged opposite each other. The first connecting member 1121 is inserted into the first hole 1221, and the second connecting member 1122 is inserted into the second hole 1222. Each seal 113 is located on a side of the first hole 1221 and the second hole 1222 that is close to the inner wall of the accommodating space 121. The relative arrangement of the first connecting member 1121 and the second connecting member 1122 not only ensures a stable connection between the first shell 110 and the second shell 120 , but also provides good waterproof and dustproof performance through the sealing member 113 , thereby extending the service life of the sensor 10 .

[0057] It is understandable that in some embodiments, the shape and size of the first connector 1121 and the second connector 1122 can be adjusted according to actual needs to adapt to different designs of the mounting holes 122. For example, the connector can be designed to be cylindrical, square or other special-shaped structures to meet different installation requirements. The seal 113 can be made of the same material as the second shell 120, or the seal 113 can be made of a material with a melting point slightly lower than the melting point of the material used for the second shell 120, including but not limited to polypropylene, polyethylene, polyvinyl chloride, polystyrene, polycarbonate, polyformaldehyde, phenolic resin, epoxy resin, polyurethane and the like. In order to further improve the sealing effect, multiple seals 113 can be designed on the circumference of the first connector 1121 and the second connector 1122 to form a multiple sealing structure. Even if one layer of sealing fails, the other layers can continue to function, ensuring the high reliability of the sensor 10.

[0058] See also Figure 3 、 Figure 6 and Figure 7In some embodiments, the sensor 10 includes a detection end 400 and an electrical connection end 500 that are arranged opposite to each other. The first shell 110 also includes an extension portion 114 connected to the main body 111. The extension portion 114 is located at the end of the main body 111 away from the detection end 400, and the extension direction of the extension portion 114 intersects with the extension direction of the main body 111. In some embodiments, the extension direction of the extension portion 114 is perpendicular to the extension direction of the main body 111. The end of the extension portion 114 away from the main body 111 is close to the electrical connection end 500. This design makes it easier to connect the electrical connection end 500 to external devices while maintaining the overall compactness of the sensor 10. The design of the extension portion 114 increases the structural rigidity of the first shell 110 and reduces the risk of damage to the internal components of the sensor 10 due to external vibration or impact. In addition, the extension portion 114, whose extension direction intersects with the extension direction of the main body 111, can also provide an additional installation point for the conductive wire 300 to improve the connection reliability between the conductive wire 300 and the shell assembly 100, reduce the probability of the conductive wire 300 detaching from the chip 210, and thus improve the service life of the sensor 10.

[0059] It is understandable that in some embodiments, the shape and size of the extension 114 can be adjusted according to actual application requirements. For example, the extension 114 can be designed to be bent at a right angle, an oblique angle, or an arc, etc., to adapt to different installation space and angle requirements. The material of the extension 114 can be selected to be the same as that of the main body 111 to ensure the consistency and reliability of the entire first shell 110. In order to further improve the stability of the structure, reinforcing ribs can be designed at the connection between the extension 114 and the main body 111. These reinforcing ribs can be distributed inside or outside the extension 114 to increase the bending resistance and impact resistance of the structure.

[0060] See also Figure 3In some embodiments, the connecting portion 112 further includes a third connecting member 1123. The third connecting member 1123 is located on a side of the extension portion 114 facing away from the main body 111 and at an end of the extension portion 114 away from the electrical connection end 500. A sealing member 113 is provided around the third connecting member 1123. The second housing 120 defines a third hole 1223 communicating with the accommodating space 121, and the third connecting member 1123 is inserted into the third hole 1223. The provision of the third connecting member 1123 and the third hole 1223 increases the number of connection points between the first housing 110 and the second housing 120, improving the stability of the overall structure. The sealing member 113 provided on the third connecting member 1123 provides additional waterproof and dustproof protection, ensuring the normal operation of the sensor 10 in harsh environments. In addition, when the sensor component 200 is installed on the first shell 110 to form a semi-finished product, when the semi-finished product is placed in the injection mold for molding the second shell 120, a groove matching the third connecting member 1123 can be set in the injection mold, so that the third connecting member 1123 can be positioned in the groove, so that the semi-finished product can be stably placed in the injection mold to facilitate the molding of the second shell 120.

[0061] It is understood that in some embodiments, the third connector 1123 can be designed as a cylindrical, square, or other special-shaped structure to match the shapes of different mounting holes 122. To further improve the sealing effect, multiple sealing members 113 can be designed around the third connector 1123 to form a multi-sealing structure. Even if one sealing layer fails, the other layers can still continue to function, ensuring the high reliability of the sensor 10.

[0062] See also Figure 1 and Figure 3 In some embodiments, the second shell 120 further includes a mounting boss 123 provided at an end facing away from the detection end 400, and the mounting boss 123 is arranged opposite to the extension portion 114, and the mounting boss 123 is configured to fix the second shell 120 to an external device. The design of the mounting boss 123 can provide a reliable fixing point for the second shell 120, so that the sensor 10 can be firmly mounted on the external device, ensuring the stability and reliability of the sensor 10 during use. Among them, the relative arrangement of the mounting boss 123 and the extension portion 114 can prevent the conductive wire 300 connected to the electrical connection end 500 from interfering with the connection between the mounting boss 123 and the external device. The connection method between the mounting boss 123 and the external device may include but is not limited to screws, snaps or other fasteners to ensure the firmness and convenience of the connection.

[0063] It will be appreciated that in some embodiments, the shape and size of the mounting boss 123 can be flexibly designed based on actual application requirements. For example, the mounting boss 123 can be designed with various geometric shapes, such as circular, square, or polygonal, to accommodate different mounting holes 122 or fixing points. To enhance mounting stability, the surface of the mounting boss 123 can be designed with anti-slip textures or grooves to increase friction with the external device and prevent slipping or falling off during use. Furthermore, the mounting boss 123 can also be designed with a first guide structure, and a corresponding second guide structure is provided at the location where the external device is mounted for the sensor 10. The first and second guide structures cooperate to improve the installation efficiency of the sensor 10 and the external device. For example, the first guide structure includes, but is not limited to, a tapered protrusion, and the second guide structure includes, but is not limited to, a guide groove. This facilitates alignment and insertion during installation, reducing installation difficulty and time. To further enhance the structural strength of the mounting boss 123, reinforcing ribs can be designed internally or externally. These ribs can be distributed at different locations on the mounting boss 123 to increase the structural resistance to bending and impact.

[0064] See also Figure 3 In some embodiments, the mounting boss 123 is provided with a through-hole 1231. The second housing 120 further includes an adapter 124, which is inserted into the through-hole 1231. The material used for adapter 124 is greater than the hardness of the material used for the second housing 120. For example, the second housing 120 can be made of a thermosetting plastic, while the adapter 124 can be made of a metal material (including but not limited to copper, stainless steel, or hard plastic). Adapter 124 is configured to connect to an external device to secure the second housing 120 to the external device. The through-hole 1231 is designed to facilitate the connection between the mounting boss 123 and the external device, while adapter 124 enhances the strength and reliability of the connection. Adapter 124 is made of a high-hardness material to ensure that it will not deform or damage when subjected to large external forces, thereby ensuring a reliable connection between the sensor 10 and the external device. The adapter 124 and the mounting boss 123 can be connected using an interference fit or threaded connection to ensure a secure and leak-tight connection.

[0065] It will be appreciated that in some embodiments, the shape and size of the adapter 124 can be adjusted based on actual application requirements. For example, the adapter 124 can be designed as a cylindrical, square, or other special-shaped structure to match the different shapes of the through-hole 1231. In some embodiments, the adapter 124 can be a circular sleeve-like structure with a perforation, which is inserted into the through-hole 1231. The connection method between the sensor 10 and the external device includes, but is not limited to, the use of threaded fasteners. The threaded fasteners can then be inserted into the perforations of the adapter 124 and connected to the external device. To further improve the reliability of the connection between the adapter 124 and the mounting boss 123, the surface of the adapter 124 can be designed with anti-slip textures or grooves to increase friction with the mounting boss 123 and prevent loosening or falling off during use. In addition, the adapter 124 can also be designed with guide structures, such as chamfers or guide grooves, to facilitate alignment and insertion during installation, reducing installation difficulty and time.

[0066] In some embodiments, the first housing 110 is integrally injection-molded, ensuring the structural integrity of the first housing 110, reducing potential errors during assembly, and improving product quality and consistency. Furthermore, this not only simplifies the production process for the first housing 110 and reduces production costs, but also ensures tight, seamless connections between the various components of the first housing 110, enhancing the sealing and durability of the first housing 110. It should be noted that the first housing 110 is molded prior to the second housing 120. By molding the first housing 110 first, the sensor assembly 200 can be accurately installed and the housing assembly 100 can wrap around the sensor assembly 200. This also helps reduce the impact of molten material on the sensor assembly 200 during the injection molding process, ensuring product yield. Furthermore, during the molding process of the second housing 120, by utilizing the molding temperature of the second housing 120, the seal 113 provided on the first housing 110 can at least partially melt and connect to the second housing 120. This improves connection reliability, reduces production costs, and enhances the waterproof and dustproof performance of the sensor 10.

[0067] It is understood that in some embodiments, in order to further improve the structural strength of the first shell 110, glass fiber or other reinforcing materials can be added during the injection molding process to increase its rigidity and impact resistance. Similarly, glass fiber or other reinforcing materials can also be added during the injection molding process of the second shell 120 to enhance the rigidity and impact resistance of the second shell 120, thereby improving the structural performance of the sensor 10 and increasing its service life. The first shell 110 can also be provided with reinforcing ribs or ribs to improve its bending resistance and compressive resistance. The provision of the connecting portion 112 can ensure the matching accuracy between the first shell 110 and the second shell 120.

[0068] See also Figures 1 to 3 The second aspect of the present invention further provides a sensor 10, which includes a shell assembly 100, a sensing assembly 200, and a conductive wire 300 as described in any one of the above embodiments and implementation methods. The sensing assembly 200 is installed on the shell assembly 100, and the sensing assembly 200 includes a chip 210 and a magnet 220. The magnet 220 can be used to sense the position of the object to be measured to generate different magnetic fields, and the chip 210 can be used to obtain the magnetic field changes of the magnet 220; one end of the conductive wire 300 is electrically connected to the chip 210, and the other end passes through the second shell 120 and is electrically connected to an external device. By installing the sensing assembly 200 on the first shell 110 and injection molding the second shell 120 outside the first shell 110, the sensing assembly 200 is tightly combined with the shell assembly 100, thereby ensuring the stability and reliability of the sensor 10 in various environments. The housing assembly 100 not only provides good protection for the sensor assembly 200, but also ensures the waterproof and dustproof performance of the sensor 10 through the seal 113 and connectors, extending the service life of the sensor 10. The design of the conductive wire 300 ensures reliable communication between the sensor 10 and external devices, allowing the sensor 10 to accurately transmit detected data.

[0069] It will be appreciated that in some embodiments, the chip 210 may utilize a high-performance microprocessor or application-specific integrated circuit (ASIC) to improve data processing speed and accuracy. The selection of the magnet 220 should be tailored to the properties of the object to be detected and the detection requirements. A magnetic structure capable of altering magnetic field variations, such as a permanent magnet 220 or an electromagnet 220, can be selected to accommodate different detection scenarios. To improve the sensitivity of the magnet 220, a shielding structure may be designed around the magnet 220 to reduce interference from external magnetic fields. To further enhance the protection level of the sensor 10, a sealing structure, such as a sealing ring or sealant, may be provided at the interface of the conductive wire 300 to prevent moisture or dust from entering the sensor 10. In some embodiments, a sealing member 113 may be provided on the outer periphery of the first housing 110 at the electrical connection end 500. During the injection molding process of the second housing 120, the sealing member 113 is fused to the second housing 120, thereby achieving a seal between the first and second housings 110, 120 at the electrical connection end 500. In other embodiments, a seal 113 may also be provided on the portion of the conductive wire 300 located within the second shell 120 . When the second shell 120 is injection molded, the seal 113 is melted and connected to the second shell 120 , thereby achieving a seal between the conductive wire 300 and the shell assembly 100 .

[0070] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), such directional indications are only used to explain the relative position relationship, movement status, etc. between the various components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0071] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or suggesting their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or", "and / or" or "and / or" appear in the full text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or solutions that satisfy both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0072] The above are only preferred embodiments of the present invention and do not limit the patent scope of the present invention. All equivalent structural transformations made by using the contents of the present invention specification and drawings under the utility model concept, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A housing assembly, suitable for a sensor, wherein the sensor includes a sensing assembly, characterized in that: The housing assembly comprises: A first housing includes a main body and a connecting portion, wherein the sensor assembly is mounted on the main body, and the connecting portion is connected to the main body and protrudes from the main body; The second shell is provided with an accommodating space, the first shell is accommodated in the accommodating space, the second shell is further provided with a mounting hole connected to the accommodating space, the connecting portion is passed through the mounting hole, so that the first shell is fixed to the second shell; The second shell is connected in an integral injection-molded manner, the connecting portion comprises a sealing member, and at least a portion of the sealing member is melt-connected to the second shell.

2. The housing assembly according to claim 1, wherein: The sensor component includes a chip and a magnet. The main body is provided with a first mounting slot and a second mounting slot. The first mounting slot is used to install the chip, and the second mounting slot is used to install the magnet. The first mounting slot and the second mounting slot are located on opposite sides of the main body.

3. The housing assembly according to claim 2, wherein: The sensor includes a detection end and an electrical connection end that are arranged opposite to each other. The main body is provided with a fixing structure. The fixing structure is located at one end of the main body close to the detection end, and the fixing structure covers at least a portion of the first mounting groove so that the chip is fixed in the first mounting groove.

4. The housing assembly according to claim 2, wherein: The connecting portion includes a first connecting member and a second connecting member, the sealing member is provided on the circumference of each of the first connecting member and the second connecting member, and the first connecting member and the second connecting member are located on opposite sides of the main body and adjacent to the first mounting groove and the second mounting groove; The second shell includes a plurality of mounting holes, namely a first hole and a second hole, the first hole and the second hole are arranged opposite to each other, the first connecting member is inserted into the first hole, and the second connecting member is inserted into the second hole, and each sealing member is located on the side of the first hole and the second hole close to the inner wall of the accommodating space.

5. The housing assembly according to claim 1, wherein: The sensor includes a detection end and an electrical connection end arranged opposite to each other, and the first shell also includes an extension portion connected to the main body, the extension portion is located at an end of the main body away from the detection end, and the extension direction of the extension portion intersects with the extension direction of the main body, and the end of the extension portion away from the main body is close to the electrical connection end.

6. The housing assembly according to claim 5, wherein: The connecting portion also includes a third connecting member, which is located on a side of the extension portion away from the main body portion, and is located at an end of the extension portion away from the electrical connection end. The sealing member is provided on the circumferential side of the third connecting member, and the second shell is provided with a third hole connected to the accommodating space, and the third connecting member is inserted into the third hole.

7. The housing assembly according to claim 5, wherein: The second shell further includes a mounting boss provided at an end away from the detection end, and the mounting boss is arranged opposite to the extension portion. The mounting boss is configured to fix the second shell to an external device.

8. The housing assembly according to claim 7, wherein: The mounting boss is provided with a through hole, and the second shell further includes an adapter, which is sleeved in the through hole, and the hardness of the material used for the adapter is greater than the hardness of the material used for the second shell. The adapter is configured to be connectable to an external device so that the second shell is fixed to the external device.

9. The housing assembly according to claim 1, wherein: The first shell is connected by integral injection molding.

10. A sensor, characterized in that: include: The housing assembly according to any one of claims 1 to 9; A sensor assembly is mounted on the housing assembly, and the sensor assembly includes a chip and a magnet, the magnet is used to sense the position of the object to be measured to generate different magnetic fields, and the chip is used to obtain changes in the magnetic field of the magnet; as well as The conductive wire has one end electrically connected to the chip and the other end electrically connected to an external device.

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