CN220753163U - Surface-mounted piezoresistor - Google Patents
Surface-mounted piezoresistor Download PDFInfo
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- CN220753163U CN220753163U CN202321568673.8U CN202321568673U CN220753163U CN 220753163 U CN220753163 U CN 220753163U CN 202321568673 U CN202321568673 U CN 202321568673U CN 220753163 U CN220753163 U CN 220753163U
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- 238000003825 pressing Methods 0.000 claims abstract description 42
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 abstract description 11
- 238000009413 insulation Methods 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000007306 turnover Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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- Thermistors And Varistors (AREA)
Abstract
The utility model discloses a surface-mounted piezoresistor, which belongs to the technical field of piezoresistors and aims at solving the problems of poor mounting stability and easy falling of the piezoresistor, and the surface-mounted piezoresistor comprises a pressing frame, a sealing backing plate and a positioning assembly, wherein the sealing backing plate is fixed on the side wall of the bottom end of the pressing frame; according to the utility model, through the arrangement of the positioning assembly, the positioning effect on the varistor body can be achieved, the condition that the varistor body falls off due to poor positioning stability is avoided, the positioned varistor body is ensured to have good stability, and the varistor bodies with different specifications are positioned.
Description
Technical Field
The utility model belongs to the technical field of piezoresistors, and particularly relates to a surface-mounted piezoresistor.
Background
The piezoresistor is a resistor device with nonlinear volt-ampere characteristics, is mainly used for voltage clamping when a circuit bears overvoltage and absorbing redundant current to protect sensitive devices, but a plurality of piezoresistors are arranged on the market at present, and mostly provided with staggered overlapping mechanisms or are subjected to step transformation, so that the production process of the mounted piezoresistor is complex, and the manufacturing method in the manufacturing process of the piezoresistor is high in cost and low in yield.
The publication number of the comparison patent document is: "CN 208580629U" a surface mount varistor comprising: the positive electrode pin, the negative electrode pin and a plurality of piezoresistor components are stacked; the piezoresistor assembly comprises a piezoresistor chip, a coated conducting layer and an electrode plate; the electrode plate is attached to two sides of the piezoresistor chip through the coating conductive layer to form a piezoresistor assembly, the coating conductive layer is attached to the surface of the piezoresistor chip, and the electrode plate is attached to the coating conductive layer; and the positive electrode pin and the negative electrode pin are respectively welded on two stages of the electrode plate. The piezoresistor can continuously work in a larger range through the built-in piezoresistor chip, and has strong through-current resistance capacity; in addition, the piezoresistor disclosed is simple in structure, and the piezoresistor assembly can be welded in parallel according to the requirements of users, so that normal continuous operation under higher voltage or higher circulation capacity can be realized. "the above patent document, but the following problems still remain in the actual use cases: at present, the mounting mode of the piezoresistor is generally a mounting mode of a magnetic mounting mode, and the mounting mode is simple but single in functionality, is difficult to be suitable for mounting piezoresistors with different specifications, is easy to cause poor stability of the mounted piezoresistor, and causes falling of the piezoresistor in long-term use engineering.
Therefore, a surface-mounted varistor is needed to solve the problems of poor mounting stability and easy falling of the varistor in the prior art.
Disclosure of Invention
The present utility model is directed to a surface mount varistor to solve the above-mentioned problems.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the surface-mounted piezoresistor comprises a pressing frame, wherein the pressing frame further comprises
The pressure frame comprises a pressure frame body, a pressure pad, a pressure resistor body, a positioning assembly and a sealing pad, wherein the pressure pad is fixed on the side wall of the bottom end of the pressure frame, the pressure resistor body is arranged on the inner side of the pressure frame, the top surface of the pressure resistor body is contacted with the bottom surface of the sealing pad, and the positioning assembly matched with the pressure resistor body is arranged on one side of the pressure frame.
In one embodiment, the positioning assembly includes
The two rotating rods are symmetrically distributed on the side wall of one side of the pressing frame and are rotationally connected, two symmetrically distributed mounting grooves are formed in the side wall of the top end of the pressing frame, and the rotating rods are located in the mounting grooves;
the positioning plate, the positioning plate is provided with two, two the positioning plate all with two dwang surface fastening cup joints, positioning plate one side with the piezo-resistor body contacts, dwang both ends all are fixed with the go-between, torsion spring has been cup jointed to the dwang surface, torsion spring one end with the go-between is fixed, the torsion spring other end with press frame outside lateral wall fixed.
It is further worth to say that the parallel arrangement is presented between locating plate one side with the piezo-resistor body, the locating plate is close to one side lateral wall of piezo-resistor body is fixed with the insulation board, insulation board one side with the piezo-resistor body contacts.
Furthermore, the positioning plate is provided with a smooth arc surface, and the central axis of the piezoresistor body and the central axis of the sealing backing plate are arranged in a collinear manner.
As a preferred embodiment, the cross section of the pressure frame is arranged in a concave shape, and the projection area value of the pressure frame is larger than that of the piezoresistor body.
As a preferred implementation mode, a plurality of symmetrically distributed pressing and pasting grooves are formed in the side wall of one side of the pressing frame, and the pressing and pasting grooves are square.
Compared with the prior art, the surface-mounted piezoresistor provided by the utility model at least comprises the following beneficial effects:
(1) Through the setting of locating component, can play the location effect to the piezo-resistor body, avoid appearing leading to the condition that the piezo-resistor body drops because of positioning stability is relatively poor, ensure that the piezo-resistor body stability after the location is better, fix a position the piezo-resistor body of different specifications moreover.
(2) Through the setting of insulation board, the setting of can the insulation board can play the effect of insulating separation when locating plate and piezoresistor body to utilize the elastic action that the insulation board self had, thereby can play the pretension effect when carrying out the location with the piezoresistor body, make the piezoresistor body press from both sides more stable of tight location.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present utility model;
FIG. 2 is an enlarged schematic view of the structure of the area A in FIG. 1;
FIG. 3 is a schematic side view of the present utility model;
fig. 4 is a schematic bottom view of the present utility model.
In the figure: 1. pressing a frame; 2. a sealing backing plate; 3. a varistor body; 4. a positioning assembly; 41. a rotating lever; 42. a mounting groove; 43. a positioning plate; 44. a connecting ring; 45. a torsion spring; 5. an insulating plate; 6. pressing and pasting the groove.
Detailed Description
The utility model is further described below with reference to examples.
Referring to fig. 1-4, the utility model provides a surface-mounted varistor, which comprises a pressing frame 1, wherein the pressing frame 1 further comprises a sealing backing plate 2, the sealing backing plate 2 is fixed on the side wall of the bottom end of the pressing frame 1, a varistor body 3 is arranged on the inner side of the pressing frame 1, the top surface of the varistor body 3 is contacted with the bottom surface of the sealing backing plate 2, and a positioning component 4 matched with the varistor body 3 is arranged on one side of the pressing frame 1.
As further shown in fig. 2 and 3, it is worth specifically explaining that the positioning assembly 4 includes two rotating rods 41, two rotating rods 41 are symmetrically distributed on the side wall of one side of the pressing frame 1 and are rotationally connected, two symmetrically distributed mounting grooves 42 are formed in the side wall of the top end of the pressing frame 1, and the rotating rods 41 are located in the mounting grooves 42; the locating plate 43, locating plate 43 is provided with two, two locating plates 43 all cup joint with two dwang 41 surface fastenings, locating plate 43 one side is contacted with piezoresistor body 3, dwang 41 both ends all are fixed with go-between 44, torsion spring 45 has been cup jointed to dwang 41 surface, torsion spring 45 one end is fixed with go-between 44, the torsion spring 45 other end is fixed with press 1 outside lateral wall, through setting up of locating component 4, can play the positioning effect to piezoresistor body 3, avoid appearing leading to piezoresistor body 3 to drop because of positioning stability is relatively poor, ensure that piezoresistor body 3 stability after the location is better, and fix a position piezoresistor body 3 of different specifications moreover.
Further, as shown in fig. 2, it is worth specifically explaining that the positioning plate 43 is arranged in parallel between the piezoresistor body 3, an insulating plate 5 is fixed on a side wall of the positioning plate 43, which is close to the piezoresistor body 3, and one side of the insulating plate 5 contacts with the piezoresistor body 3, and the insulating plate 5 can be arranged to play an insulating and blocking effect when the positioning plate 43 and the piezoresistor body 3 are positioned, and an elastic effect of the insulating plate 5 is utilized to play a pre-tightening effect when the positioning plate and the piezoresistor body 3 are positioned, so that the piezoresistor body 3 is clamped and positioned more stably.
The scheme comprises the following working processes: when the piezoresistor body 3 is required to be mounted, the piezoresistor body 3 is placed at a designated mounting position, the frame is placed at the top surface position of the piezoresistor body 3, the transmission effect between one side of the piezoresistor body 3 and the positioning plate 43 is utilized, the positioning plate 43 is driven to turn over along the axis after being stressed, the connecting ring 44 is driven to rotate synchronously, the torsion spring 45 is in a tightening state at this moment, one side of the positioning plate 43 and the piezoresistor body 3 are in a fitting state, the piezoresistor body 3 is initially positioned, the sealing backing plate 2 and the piezoresistor body 3 are ensured to be in a fitting state, and the mounting of the pressing frame 1 is completed by placing the magnetic attraction block at the pressing groove 6.
The working process can be as follows: through setting up of locating component 4, can play the location effect to piezoresistor body 3, avoid appearing leading to the condition that piezoresistor body 3 drops because of positioning stability is relatively poor, ensure that piezoresistor body 3 stability after the location is better, and fix a position piezoresistor body 3 of different specifications moreover, and through setting up of insulation board 5, can insulation board 5's setting, can play the effect of insulating separation when locating plate 43 and piezoresistor body 3 fix a position, and utilize the elastic action that insulation board 5 self had, thereby can play the pretension effect when fixing a position with piezoresistor body 3, make piezoresistor body 3 clamp the more stable of location.
Further, as shown in fig. 3, it is worth specifically explaining that one side of the positioning plate 43 is provided with a smooth arc surface, the central axis of the piezoresistor body 3 and the central axis of the sealing backing plate 2 are arranged in a collinear manner, one side of the positioning plate 43 is provided with the smooth arc surface, and the positioning plate 43 can be driven to turn over when the positioning plate 43 is stressed, so that the positioning of the piezoresistor body 3 can be more effectively completed.
Further, as shown in fig. 1, it is worth specifically explaining that the cross section of the pressing frame 1 is concave, the projection area value of the pressing frame 1 is larger than the projection area value of the piezoresistor body 3, and the pressing frame 1 can be suitable for mounting work of the piezoresistor body 3 with different specifications and sizes, and the application range is wide.
Further as shown in fig. 4, it is worth specifically explaining that a plurality of symmetrically distributed pressing and pasting grooves 6 are formed in the side wall of one side of the pressing frame 1, the pressing and pasting grooves 6 are square, and through the arrangement of the pressing and pasting grooves 6, workers can conveniently install the pressing frame 1 by using magnetic blocks, so that the installation work of the pressing frame 1 is completed more simply and effectively.
To sum up: the positioning plate 43 is arranged on one side of the positioning plate 43 in a smooth arc surface mode, the positioning plate 43 can be driven to overturn when the positioning plate 43 is stressed, positioning of the piezoresistor body 3 can be completed more effectively, the mounting work of the piezoresistor body 3 with different specifications and sizes can be applied through the arrangement of the pressing frame 1, the application range is wide, the mounting work of the pressing frame 1 can be conveniently mounted by using the magnetic attraction blocks through the arrangement of the pressing and pasting grooves 6, and the mounting work of the pressing frame 1 can be completed more simply and effectively.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The components adopted by the utility model are all general standard components or components known by a person skilled in the art, the structure and the principle of the components are all known by the person skilled in the art through technical manuals or are known through routine experimental methods, for example, the varistor body 3 can be purchased in the market, and the varistor body 3 is provided with a power supply, and the components are fully disclosed in the art, so that the description is not repeated.
The foregoing description is only a preferred embodiment of the present utility model, and is not intended to limit the technical scope of the present utility model, so any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present utility model still fall within the scope of the present utility model.
Claims (6)
1. The surface-mounted varistor comprises a pressing frame (1), and is characterized in that the pressing frame (1) further comprises:
the sealing base plate (2) is fixed on the side wall of the bottom end of the pressing frame (1);
the inner side of the pressure frame (1) is provided with a piezoresistor body (3), and the top surface of the piezoresistor body (3) is contacted with the bottom surface of the sealing backing plate (2);
one side of the pressure frame (1) is provided with a positioning component (4) which is matched with the piezoresistor body (3).
2. A surface mount varistor according to claim 1, wherein the positioning assembly (4) comprises:
the two rotating rods (41) are arranged, and the two rotating rods (41) are symmetrically distributed on the side wall of one side of the pressing frame (1) and are connected in a rotating mode;
two symmetrically distributed mounting grooves (42) are formed in the side wall of the top end of the pressing frame (1);
the rotating rod (41) is positioned in the mounting groove (42);
the two positioning plates (43) are arranged, the two positioning plates (43) are fixedly sleeved on the outer surfaces of the two rotating rods (41), and one side of each positioning plate (43) is contacted with the piezoresistor body (3);
connecting rings (44) are fixed at two ends of the rotating rod (41);
the outer surface of the rotating rod (41) is sleeved with a torsion spring (45), one end of the torsion spring (45) is fixed with the connecting ring (44), and the other end of the torsion spring (45) is fixed with the lateral wall of the outer side of the pressing frame (1).
3. A surface mount varistor as claimed in claim 2, wherein:
one side of the positioning plate (43) is arranged in parallel with the piezoresistor body (3);
an insulating plate (5) is fixed on the side wall of one side of the positioning plate (43) close to the piezoresistor body (3), and one side of the insulating plate (5) is in contact with the piezoresistor body (3).
4. A surface mount varistor as claimed in claim 3, wherein:
one side of the positioning plate (43) is provided with a smooth arc surface, and the central axis of the piezoresistor body (3) and the central axis of the sealing backing plate (2) are arranged in a collinear way.
5. A surface mount varistor as claimed in claim 4, wherein:
the cross section of the pressure frame (1) is arranged in a concave shape, and the projection area value of the pressure frame (1) is larger than that of the piezoresistor body (3).
6. A surface mount varistor as claimed in claim 5, wherein:
a plurality of symmetrically distributed pressing and pasting grooves (6) are formed in the side wall of one side of the pressing frame (1);
the pressing and pasting groove (6) is square.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321568673.8U CN220753163U (en) | 2023-06-20 | 2023-06-20 | Surface-mounted piezoresistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321568673.8U CN220753163U (en) | 2023-06-20 | 2023-06-20 | Surface-mounted piezoresistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220753163U true CN220753163U (en) | 2024-04-09 |
Family
ID=90551578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321568673.8U Active CN220753163U (en) | 2023-06-20 | 2023-06-20 | Surface-mounted piezoresistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220753163U (en) |
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2023
- 2023-06-20 CN CN202321568673.8U patent/CN220753163U/en active Active
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