SMD (Surface Mount Device) piezoresistor

Abstract

The utility model relates to the technical field of patch type piezoresistors, and discloses a patch type piezoresistor which comprises a packaging box and a piezoresistor body, a multi-storage assembly is arranged in the packaging box, and the multi-storage assembly comprises transparent glass, a storage box, an elastic silica gel pad, a miniature magnet and an energy absorption protective layer. The transparent glass is fixedly installed on the inner wall of the top of the packaging box, through the arrangement of the multiple storage assemblies, a worker can place the multiple piezoresistor bodies in the multiple sets of storage grooves correspondingly, in this way, mutual extrusion and collision can be avoided, and the piezoresistor bodies of different specifications can be conveniently stored in a classified mode; and meanwhile, an elastic silica gel pad, a micro magnet and an energy absorption protection layer are arranged in the storage groove, so that the fixing effect of the piezoresistor main body in the storage groove can be enhanced, the piezoresistor main body is prevented from shifting, external impact force can be effectively absorbed, and the piezoresistor main body is prevented from being damaged due to collision during transportation or storage.

Description

TECHNICAL FIELD

[0001] The utility model relates to patch type piezoresistor technical field, especially patch type piezoresistor. BACKGROUND

[0002] In the era of rapid development of electronic technology, various electronic devices, such as smart phones, tablet computers, wearable devices, etc., are developing towards miniaturization, thinness and high integration. This trend puts extremely strict requirements on the size and performance of electronic components. Traditional plug-in piezoresistors have obvious limitations in installation space due to their large size, making it difficult to meet the needs of high-density assembly of modern electronic devices. Piezoresistors with small size and characteristics suitable for surface mount technology (SMT) can effectively save circuit board space and become an ideal choice in the miniaturization process of electronic devices.

[0003] The applicant found that a piezoresistor has been disclosed in Chinese patent "CN217719169U". The patent mainly protects the piezoresistor body by sleeving a protective shell on the piezoresistor body, preventing friction and collision of the piezoresistor body during transportation and handling, solving the problem of easy scratching of the insulating layer wrapped around the piezoresistor body, and improving the use efficiency of the protective shell by setting a sealing ball, a fixing tube and an auxiliary shell. However, the patent cannot classify and store piezoresistors of different specifications and effectively prevent the piezoresistors from shifting in the storage tank. In actual use, different specifications of piezoresistors may be mixed, which may cause the staff to spend more time searching and distinguishing when taking a specific specification of piezoresistor, and the piezoresistor may collide with other components or the wall of the storage tank when shifting in the storage tank. Therefore, we propose a piezoresistor. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a piezoresistor to solve the problem of being unable to classify and store piezoresistors of different specifications and effectively prevent the piezoresistors from shifting in the storage tank, which may cause different specifications of piezoresistors to be mixed, resulting in the staff spending more time searching and distinguishing when taking a specific specification of piezoresistor, and the piezoresistor may collide with other components or the wall of the storage tank when shifting in the storage tank.

[0005] To achieve the above object, the utility model provides the following technical scheme: A patch type piezo -resistor, including packing box and piezo -resistor main part, the inside of packing box is provided with multiple storage components, the multiple storage components include transparent glass, storage box, elastic silica gel pad, micro -magnet and energy -absorbing protective layer, the transparent glass fixed mounting is in the top inner wall of packing box, the left and right two side inner walls of packing box all are set up with the sliding slot, the left and right two side inner walls of storage box all are fixedly connected with the sliding block.

[0006] As a preferred scheme, two groups of the sliding block are respectively slidably connected in the inside of two groups of the sliding slot, a recess is formed in the front outer wall of the storage box, and a plurality of storage grooves are formed in the top of the storage box and are equidistantly distributed.

[0007] As a preferred scheme, the elastic silica gel pad, the micro -magnet and energy -absorbing protective layer all are provided with multiple groups, multiple groups of the elastic silica gel pad are respectively fixedly installed on the inside bottom wall of multiple groups of the storage groove, multiple groups of the micro -magnet are respectively fixedly installed on the inside bottom wall of multiple groups of the elastic silica gel pad, and multiple groups of energy -absorbing protective layer are respectively fixedly installed on the inner wall of multiple groups of the storage groove.

[0008] As a preferred scheme, the piezo -resistor main part is provided with a sealing assembly, the sealing assembly includes a sealing cover and a bottom disc, a connecting block is fixedly installed on the top of the sealing cover, and a threaded part is fixedly connected to the bottom of the sealing cover.

[0009] As a preferred scheme, a threaded groove is formed in the top inner wall of the bottom disc, and the outer wall of the threaded part is threadedly connected to the inner wall of the threaded groove.

[0010] As a preferred scheme, a hollow slot is formed in the top of the connecting block, the outer wall of the piezo -resistor main part is matched with the inner wall of the sealing cover and the inner wall of the bottom disc, and the outer wall of the sealing cover and the outer wall of the bottom disc are matched with the inner wall of the energy -absorbing protective layer.

[0011] The technical effects and advantages of the utility model are as follows:

[0012] 1. By setting up multiple storage components, the staff can place multiple piezo -resistor main parts in multiple storage grooves, which can avoid mutual extrusion and collision, facilitate the classification and storage of piezo -resistor main parts of different specifications, and the elastic silica gel pad, the micro -magnet and the energy -absorbing protective layer in the storage groove can enhance the fixing effect of the piezo -resistor main part in the storage groove, prevent displacement, effectively absorb external impact force, and avoid damage to the piezo -resistor main part due to collision during transportation or storage.

[0013] 2、Through the sealing assembly that is arranged, the staff can place the piezoresistor body in the inside of the bottom disc, and then fix the sealing cover on the top of the bottom disc through the threaded connection relationship between the threaded member and the threaded groove, so that a good sealing structure is formed, the external moisture, dust and corrosive gas are effectively isolated, and the piezoresistor body is prevented from being eroded by these factors, and the stability of the electrical performance and the service life of the piezoresistor body are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0015] Figure 2 It is a whole partial structure schematic view of the utility model;

[0016] Figure 3 It is a multiple storage assembly partial structure schematic view of the utility model;

[0017] Figure 4 It is a multiple storage assembly partial structure split schematic view of the utility model;

[0018] Figure 5 It is a sealing assembly expanded structure schematic view of the utility model.

[0019] In the drawing: 1, packaging box; 2, piezoresistor body; 3, multiple storage assembly; 301, transparent glass; 302, sliding groove; 303, storage box; 304, sliding block; 305, recess; 306, storage groove; 307, elastic silica gel pad; 308, micro magnet; 309, energy-absorbing protective layer; 4, sealing assembly; 401, sealing cover; 402, connecting block; 403, threaded member; 404, bottom disc; 405, threaded groove. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to the drawings in the embodiments of the utility model Figure 1 - the drawings in the embodiments of the utility model Figure 4The utility model provides a kind of patch type piezoresistor, including packing box 1 and piezoresistor main body 2, the inside of packing box 1 is provided with multiple storage components 3, multiple storage components 3 include transparent glass 301, storage box 303, elastic silica gel pad 307, micro magnet 308 and energy-absorbing protective layer 309, transparent glass 301 is fixedly installed on the top inner wall of packing box 1, the left and right two side inner walls of packing box 1 are all opened with sliding groove 302, the left and right two side inner walls of storage box 303 are all fixedly connected with sliding block 304, two groups of sliding block 304 are respectively slidably connected in the inside of two groups of sliding groove 302, recess 305 is opened on the front outer wall of storage box 303, the top of storage box 303 is opened with multiple groups of equidistance respectively storage groove 306, elastic silica gel pad 307, micro magnet 308 and energy-absorbing protective layer 309 are provided with multiple groups, multiple groups of elastic silica gel pad 307 are respectively fixedly installed on the inside bottom wall of multiple groups of storage groove 306, multiple groups of micro magnet 308 are respectively fixedly installed on the inside bottom wall of multiple groups of elastic silica gel pad 307, multiple groups of energy-absorbing protective layer 309 are respectively fixedly installed on the inner wall of multiple groups of storage groove 306.

[0022] The inside bottom wall of elastic silica gel pad 307 is opened with placing groove for placing micro magnet 308, transparent glass 301 can be conveniently observed from outside by user piezoresistor main body 2 storage condition in the inside of packing box 1, also play certain dustproof and protection effect.

[0023] Specifically, by being provided with multiple storage components 3, staff places multiple piezoresistor main bodies 2 in multiple groups of storage grooves 306, can realize independent storage, avoid mutual extrusion and collision, and facilitate the classification management of different specifications, the elastic silica gel pad 307, micro magnet 308 and energy-absorbing protective layer 309 are arranged in the storage groove 306, the elastic silica gel pad 307 is fixed with the micro magnet 308 to prevent the piezoresistor main body 2 from shifting in the groove, and the energy-absorbing protective layer 309 wraps the inner wall of the storage groove 306, effectively absorbing external impact force, reducing the damage risk of piezoresistor main body 2 caused by collision during transportation and storage.

[0024] Please refer to the accompanying Figure 1 , the accompanying Figure 4 and the accompanying Figure 5 , the outside of piezoresistor main body 2 is provided with sealing assembly 4, sealing assembly 4 includes sealing cover 401 and bottom disc 404, the top of sealing cover 401 is fixedly installed with connecting block 402, the bottom of sealing cover 401 is fixedly connected with screw part 403, the top inner wall of bottom disc 404 is opened with screw groove 405, the outer wall of screw part 403 is threadedly connected to the inner wall of screw groove 405, the top of connecting block 402 is opened with hollow groove, the outer wall of sealing cover 401 and the inner wall of bottom disc 404 are all matched with the inner wall of energy-absorbing protective layer 309.

[0025] The inner bottom wall of the bottom plate 404 is hollowed out, so that when the bottom plate 404 is placed on the top of the elastic silica gel pad 307, the top of the micro magnet 308 will be in contact with the bottom of the piezoresistor body 2, so that the metal electrode of the piezoresistor body 2 can be adsorbed and fixed with the micro magnet 308.

[0026] Specifically, by arranging the sealing assembly 4, the piezoresistor body 2 is placed in the bottom plate 404, and the sealing cover 401 is fixed on the top of the bottom plate 404 through the threaded connection of the threaded part 403 and the threaded groove 405, so as to form a sealing structure. This structure isolates external moisture, dust and corrosive gases, prevents them from eroding the piezoresistor body 2, maintains stable electrical performance, and prolongs service life.

[0027] The utility model discloses a piezoresistor, first, when the staff needs to place the piezoresistor body 2 in the storage groove 306 on the top of the storage box 303, a plurality of piezoresistor bodies 2 can be independently stored through a plurality of storage grooves 306. The elastic silica gel pad 307 and the micro magnet 308 on the inner bottom wall of the storage groove 306 work together, the elastic silica gel pad 307 provides buffer support, and the micro magnet 308 adsorbs the metal electrode of the piezoresistor body 2 to prevent it from moving in the storage groove 306. The energy-absorbing protective layer 309 on the inner wall of the storage groove 306 can effectively absorb external impact force, protect the piezoresistor body 2 during transportation and storage, reduce the risk of damage caused by collision, and the storage box 303 can be connected with the sliding groove 302 on the inner wall of the packaging box 1 through the left and right sliding blocks 304. The staff can pull the recess 305 on the front outer wall of the storage box 303 by hand, and then the storage box 303 can be pulled out of the packaging box 1, so that the piezoresistor body 2 can be quickly taken out and placed. The transparent glass 301 on the top inner wall of the packaging box 1 facilitates the user to observe the storage condition of the piezoresistor body 2 from the outside. Then, before the staff places the piezoresistor body 2 in the storage groove 306, the staff can place the piezoresistor body 2 in the bottom plate 404. When the bottom plate 404 is placed on the top of the elastic silica gel pad 307, the top of the micro magnet 308 is in contact with the bottom of the piezoresistor body 2. Then, the staff manually connects the threaded part 403 on the bottom of the sealing cover 401 with the threaded groove 405 on the top inner wall of the bottom plate 404, so that the sealing cover 401 is fixed on the top of the bottom plate 404.

[0028] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for part of the technical features of the equivalent replacement, the spirit and principles of the present application, made any modification, equivalent replacement, improvement, etc., should be included within the scope of the present application.

Claims

1. A patch-type piezoresistor comprising a package case (1) and a piezoresistor main body (2), characterized in that: The inside of the packing box (1) is provided with a multi-storage assembly (3), the multi-storage assembly (3) comprises transparent glass (301), storage box (303), elastic silica gel pad (307), micro magnet (308) and energy absorption protective layer (309), the transparent glass (301) is fixedly installed on the top inner wall of the packing box (1), the left and right two side inner walls of the packing box (1) are provided with a sliding groove (302), and the left and right two side inner walls of the storage box (303) are fixedly connected with a sliding block (304).

2. A patch-type piezoresistor according to claim 1, characterized in that: Two groups of the sliding block (304) are respectively connected with the inside of the two groups of sliding grooves (302), the front outer wall of the storage box (303) is provided with a groove (305), and the top of the storage box (303) is provided with a plurality of storage grooves (306) which are equidistantly distributed.

3. A patch-type piezoresistor according to claim 2, characterized in that: The elastic silica gel pad (307), the micro magnet (308) and the energy absorption protective layer (309) are provided with a plurality of groups, a plurality of groups of the elastic silica gel pad (307) are respectively fixedly installed on the inner bottom wall of a plurality of storage grooves (306), a plurality of groups of the micro magnet (308) are respectively fixedly installed on the inner bottom wall of a plurality of elastic silica gel pads (307), and a plurality of energy absorption protective layers (309) are respectively fixedly installed on the inner wall of a plurality of storage grooves (306).

4. A patch-type piezoresistor according to claim 3, characterized in that: The outside of the piezoresistor body (2) is provided with a sealing assembly (4), the sealing assembly (4) comprises a sealing cover (401) and a bottom disc (404), the top of the sealing cover (401) is fixedly installed with a connecting block (402), and the bottom of the sealing cover (401) is fixedly connected with a threaded part (403).

5. A patch type piezoresistor according to claim 4, characterized in that: The top inner wall of the bottom disc (404) is provided with a threaded groove (405), and the outer wall of the threaded part (403) is threadedly connected with the inner wall of the threaded groove (405).

6. A patch type piezoresistor according to claim 5, characterized in that: The top of the connecting block (402) is provided with a hollow groove, the outer wall of the piezoresistor body (2) is matched with the inner wall of the sealing cover (401) and the inner wall of the bottom disc (404), and the outer wall of the sealing cover (401) and the outer wall of the bottom disc (404) are matched with the inner wall of the energy absorption protective layer (309).

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