CN219957656U - Digital display electric measuring instrument and watchcase structure thereof - Google Patents

Abstract

The utility model discloses a watchcase structure of a digital display electric measuring instrument, which comprises a shell for installing a circuit board and a panel for being matched with the shell for installation, wherein the shell is provided with an opening, the panel is installed on the position of the corresponding opening on the shell so as to close the opening on the shell, a first circuit board matched with the panel is arranged on the position of the corresponding opening in the shell, a plurality of supporting pieces for supporting the first circuit board are arranged in the shell, and a buckle for being matched with the first circuit board in a clamping way is also arranged in the shell so as to press or limit the first circuit board on the supporting pieces in a propping way. The utility model can facilitate the disassembly and assembly of the digital display electric measuring instrument and make the meter calibration more convenient.

Description

Digital display electric measuring instrument and watchcase structure thereof

Technical Field

The utility model relates to a measuring instrument, in particular to a digital display electric measuring instrument and a watchcase structure thereof.

Background

The digital display electric measuring instrument is very important in electric parameter measurement, and at present, the instrument is implemented by relying on an electronic circuit, for example, the digital display instrument comprises a digital display module, an interaction module, an acquisition module and the like, but because the digital display module and the interaction module need to correspond to the positions of the panels, a circuit board is matched with the panels, and meanwhile, the rest modules such as the acquisition module need to be configured by additional circuit boards, so that a plurality of circuit boards need to be assembled in the digital display electric measuring instrument.

Digital display electrical meters generally have a housing and a faceplate, with a plurality of circuit boards mounted in the housing, wherein one of the circuit boards mates with the faceplate for interaction, such as key presses and displays; however, the fixing mode of the circuit board matched with the panel still has the defect that the circuit board can be in a stable assembly state under the assembly of the panel and the shell, and the panel can be matched with the shell to press the circuit board, but the electric measuring instrument needs to be calibrated before leaving the factory, and the installation relationship between the circuit board and the shell is not stable enough at present during the calibration, so that the circuit board is easy to separate from the shell in the calibration process, and the calibration efficiency is influenced. Therefore, in order to improve the production efficiency, improvement is also required to improve the meter calibration efficiency.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide the digital display electric measuring instrument and the watch case structure thereof, which can facilitate the disassembly and assembly of the digital display electric measuring instrument and simultaneously facilitate the meter correction.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a watchcase structure of digital display electric measuring instrument, includes the casing that is used for installing the circuit board, is used for cooperating the panel of casing installation, and this casing has an opening, the panel is installed on the casing corresponds open-ended position to the opening on the closure casing, correspond open-ended position in the casing be provided with panel complex first circuit board, be provided with a plurality of support pieces that are used for supporting first circuit board in the casing, still be provided with the buckle that is used for cooperating first circuit board joint in the casing, compress tightly or restrict first circuit board butt on support piece.

As a further improvement of the utility model, at least one or more of the supporting pieces are provided with positioning blocks for positioning by matching with notches at the edge of the first circuit board or through holes on the first circuit board.

As a further development of the utility model, the side of the support is provided with a slot extending along the opening for plugging in the second circuit board.

As a further improvement of the utility model, the slot on the support member penetrates through the end of the corresponding opening of the support member; the positioning block is positioned at the end part of the supporting piece corresponding to the opening and is positioned at one side of the slot.

As a further improvement of the utility model, the number of the positioning blocks is two, and the positioning blocks are respectively positioned on the ends of the corresponding openings of the two supporting pieces which are diagonally distributed.

As a further development of the utility model, an extension piece is arranged between the inner wall of the housing and the support piece or the catch, one side of the extension piece is connected with the inner wall of the housing, the other side is connected with the support piece or the catch, and the support piece or the catch forms a space with the inner wall of the housing through the extension piece.

As a further improvement of the utility model, the support is also provided with a flange extending towards the opening direction of the shell, and the flange is positioned on one side of the first circuit board and is used for positioning or limiting the edge of the first circuit board.

The digital display electric measuring instrument comprises a watchcase structure of the digital display electric measuring instrument in any one of the improved schemes, and a first circuit board is arranged in a shell of the watchcase structure and is installed in the shell in a matched mode through a buckle and a supporting piece.

As a further improvement of the utility model, a second circuit board is further arranged in the shell, at least one or more supporting pieces extend along the opening towards an inserting groove which penetrates through the end of the supporting piece and is used for inserting the second circuit board, and the first circuit board also covers the end of the inserting groove so as to limit the second circuit board from falling out.

As a further improvement of the utility model, the edge of the first circuit board corresponding to the position of the buckle is provided with a cutting groove, and the buckle is positioned at the cutting groove and is matched and clamped with the first circuit board.

The utility model has the beneficial effects that: the circuit board is more stable to install, convenient to assemble and disassemble, and convenient to calibrate the meter in the production process.

Drawings

FIG. 1 is a perspective view of the overall structure of the present utility model;

FIG. 2 is a schematic perspective view of a housing structure according to the present utility model;

FIG. 3 is a schematic front view of a housing structure according to the present utility model;

FIG. 4 is a schematic cross-sectional view of a housing structure according to the present utility model;

fig. 5 is a schematic perspective view of a housing structure (without the first circuit board installed) according to the present utility model;

fig. 6 is an enlarged view of a portion a in fig. 2;

fig. 7 is an enlarged view of a portion B in fig. 5.

Reference numerals: 1. a housing; 2. a panel; 3. a first circuit board; 31. a notch; 32. grooving; 4. a support; 41. a slot; 42. a flange; 5. a buckle; 6. a positioning block; 71. a second circuit board; 72. a third circuit board; 8. an extension.

Detailed Description

The utility model will be further described in detail with reference to examples of embodiments shown in the drawings.

As shown with reference to figures 1-7,

example 1

The utility model provides a watchcase structure of digital display electric measuring instrument, including the casing 1 that is used for installing the circuit board, be used for cooperating panel 2 of casing 1 installation, this casing 1 has an opening, panel 2 installs on the corresponding open-ended position on casing 1, with the opening on the closure casing 1, correspond open-ended position in the casing 1 be provided with panel 2 complex first circuit board 3, be provided with a plurality of support pieces 4 that are used for supporting first circuit board 3 in the casing 1, still be provided with in the casing 1 be used for cooperating the buckle 5 that first circuit board 3 joint pushed down, in order to compress tightly first circuit board 3 butt on support piece 4.

Referring to fig. 1 and 2, in this embodiment, the first circuit board 3 is mated with the corresponding panel 2, and the display module and the key module are mainly integrated to form an interactive circuit board, for example, a key is disposed on the panel 2, so that the first circuit board 3 mates with the panel 2, and after the panel 2 is mounted at the opening of the housing 1, the first circuit board 3 is mounted in the housing 1, so that the key on the panel 2 can be associated with the element on the first circuit board 3 to generate an interaction effect. In the production process, the meter calibration is needed, the panel 2 is not directly installed generally, the meter calibration and debugging are convenient, and in the scheme of the prior art, the first circuit board 3 is easy to separate from the shell 1, so that the meter calibration efficiency is affected.

It should be noted that, the buckle 5 structure is a mature existing structure, the buckle 5 in this scheme can adopt the barb type buckle 5 as shown in fig. 1-5, the side surface is an inclined plane, and the first circuit board 3 can be automatically opened by extrusion when being pressed down. Of course, the buckle 5 can also be manually broken to clamp the first circuit board 3. Wherein the barb type buckle 5 is shown in the reference figure, can be formed by a cylindrical connecting part connected with the shell 1 and barbs on the connecting part, the barbs are used for hooking the edge of the first circuit board 3, and partial pressure can be applied to compress the first circuit board 3; of course, the first circuit board 3 can be implemented without applying pressure, and the shaking/sliding range of the first circuit board can be limited.

This embodiment is explained with barb formula buckle 5 that has the inclined plane, buckle 5 sets up the position at the interior corresponding first circuit board 3 edge of casing 1, when installing first circuit board 3, through pushing down first circuit board 3, the edge extrusion buckle 5 of first circuit board 3 lets buckle 5 open automatically, when pressing in place, buckle 5 automatic re-setting joint first circuit board 3, the bottom of first circuit board 3 can be supported through support piece 4 simultaneously, utilize support piece 4's supporting role and buckle 5's joint pushing down the effect, cooperate fixedly to the upper and lower both sides of first circuit board 3, utilize buckle 5's pushing down to compress tightly first circuit board 3 on support piece 4, let first circuit board 3 can firmly install in casing 1, also can not break away from casing 1 in the school table in-process, it can also let school table efficiency improve to facilitate the installation. The number of the buckles 5 is preferably two, and the buckles are symmetrically distributed on two sides of the first circuit board 3, so that the first circuit board 3 can be fixed more stably, the number is not necessary in the arrangement, the first circuit board 3 can be mounted by one buckle 5 scheme, and meanwhile the first circuit board cannot be separated in the process of calibrating the meter. The clamping mode of the buckle 5 is convenient to assemble and disassemble, and parts such as screws are not needed to be used for fastening.

If the buckle 5 is used for limiting the first circuit board 3 to shake or slide, because the supporting piece 3 is used for supporting at the bottom of the first circuit board 3, the first circuit board 3 can be limited to fall off or fall off through overturning on the supporting piece 3 by matching with the buckle 5, in the embodiment, a certain gap is reserved between the buckle 5 and the top surface of the first circuit board 3, and a limiting effect is reserved on the barb of the buckle 5, so that a good effect of limiting the first circuit board 3 to fall off can be generated.

In a specific arrangement, at least one or more of the supporting members 4 is provided with a positioning block 6 for positioning by matching with a notch 31 at the edge of the first circuit board 3 or a hole on the first circuit board 3.

The positioning block 6 can be used for positioning the position of the first circuit board 3, so that the position of the first circuit board is more accurate when the first circuit board is matched with the panel 2, and the position of the corresponding display and the position of the key on the panel 2 can be accurately matched. Meanwhile, the first circuit board 3 is difficult to slide in the assembled state due to the arrangement of the positioning block 6, so that the installation is more stable.

In the above embodiment, the positioning block 6 may be matched with the notch 31 at the edge of the first circuit board 3, so that the positioning block 6 is embedded into the notch 31 to realize positioning of the first circuit board 3; the first circuit board 3 may be directly perforated, and the positioning block 6 may be inserted into a through hole or a blind hole formed by perforation when the first circuit board 3 is mounted on the supporting member 4.

In a further alternative refinement, the support 4 is further provided with a flange 42 extending in the direction of the opening of the housing 1, the flange 42 being located on one side of the first circuit board 3, the flange 42 serving to position or limit the edge of the first circuit board 3. The positioning and limiting functions of the first circuit board 3 can be better, the shaking of the first circuit board 3 can be reduced, and then the first circuit board 3 and the buckle 5 are more stable in cooperation. Specifically, after the first circuit board 3 is installed, the flange 42 abuts against or approaches the edge of the first circuit board 3, so as to position or limit the first circuit board 3.

In addition, the number of the positioning blocks 6 is two, and the positioning blocks are respectively positioned on the ends of the corresponding openings of the two supporting pieces 4 which are diagonally distributed.

Because support piece 4 is used as the support to first circuit board 3, consequently first circuit board 3 is located the tip of support piece 4, lets locating piece 6 be in the tip of support piece 4 can cooperate more easily with first circuit board 3, and the locating piece 6 of diagonal distribution can let the positioning effect of first circuit board 3 further obtain promoting and more stable.

In one embodiment, which is cost-effective and space-saving, an extension member 8 is provided between the inner wall of the housing 1 and the support member 4 or the buckle 5, one side of the extension member 8 is connected to the inner wall of the housing 1, and the other side is connected to the support member 4 or the buckle 5, and the support member 4 or the buckle 5 is spaced from the inner wall of the housing 1 by the extension member 8.

The support piece 4 utilizes extension piece 8 to form the interval with the inner wall of casing 1, wherein extension piece 8 can play the effect of strengthening, let have adapting unit between the inner wall of casing 1 and the support piece 4, support piece 4 when support piece 4 adopts the cylindricality structure, make its intensity higher, reduce the cracked condition of support piece 4, because need keep more installation space in the casing 1 under certain demand, therefore sometimes also have the requirement to the size of circuit board, because support piece 4 has formed the interval with casing 1 inner wall, consequently can adapt the circuit board of size less, the reduction of circuit board size can save more spaces and install other parts simultaneously also can be because the reduction of circuit board size, save the cost of partial circuit board simultaneously.

Of course, the cost can also be reduced by reducing the size of each circuit board in a manner that makes the layout of the components within the housing 1 more compact. Through foretell interval can be with letting each parts set up compacter, save the materials cost of circuit board, and then reduce holistic cost.

As shown in the drawings, the edge of the circuit board can save a lot of space without being mounted against the inner wall of the housing 1. And the circuit board is bigger in installation space after reducing, also convenient equipment.

Generally, more than one circuit board will be mounted in the housing 1, and in order to facilitate the assembly and installation of more circuit boards, the side of the supporting member 4 is provided with a slot 41 extending along the opening towards for inserting the second circuit board 71.

The support 4 is first adapted to support the first circuit board 3, so that the support 4 is oriented towards the opening of the housing 1, the support 4 may be cylindrical, with one end connected to the housing 1 and the other end for supporting the first circuit board 3, the end of the support 4 being referred to hereinafter as the end of the support 4 for supporting the first circuit board 3. The slots 41 extending along the opening direction are arranged on the side surface of the supporting member 4, so that more circuit boards can be inserted, for example, the second circuit board 71 and the third circuit board 72 can be adjusted according to the number of the supporting members 4 and the number of the slots 41, the slots 41 on the two supporting members 4 can be matched, or only one slot 41 on the supporting member 4 is directly used, so that the second circuit board 71 or the third circuit board 72 can be plugged into one circuit board, the slots 41 on the two supporting members 4 can be matched with each other, the circuit boards can be more stably mounted, when the number of the supporting members 4 is four and the four slots 41 are arranged, and when the two opposite slots 41 are matched, the circuit boards can be inserted, and of course, the slots 41 on any two supporting members 4 can be matched with each other, so that the two parallel mounting modes, namely, the second circuit board 71 and the third circuit board 72 can be plugged into the second circuit board 71 and the third circuit board 72 can be formed, and the second circuit board 71 and the third circuit board 72 can be mounted in a more regular and more parallel state or a more regular and more parallel state 1 can be realized. Since the supporting member 4 is also used for supporting the first wiring board 3 at the same time, the second wiring board 71 and the third wiring board 72 can be restrained in the slot 41 by the first wiring board 3 so as not to be detached after being inserted in the slot 41, alternatively, the slot 41 on the supporting member 4 penetrates through the end of the corresponding opening of the supporting member 4; the locating piece 6 is located the support piece 4 and corresponds open-ended tip, and is located one side of slot 41, under the setting of this scheme, when first circuit board 3 supports through support piece 4, first circuit board 3 has a part at least to block the position that slot 41 runs through support piece 4 tip, this part of running through can be used for inserting the circuit board, first circuit board 3 can also block the position that runs through to opening this moment, restriction circuit board deviate from slot 41, if the tip of second circuit board 71 and third circuit board 72 and the surface parallel and level of support piece 4 can also be with its butt of first circuit board 3, make its installation more stable.

Example 2

The above-described embodiment 1 describes a case structure of a digital electric measuring instrument (i.e., a structure not including a circuit board assembled state), and next a case structure of a digital electric measuring instrument based on the case structure of embodiment 1 is described with the digital electric measuring instrument as a main body (i.e., a structure including a circuit board assembled state). The inside first circuit board 3 that is provided with of specific casing 1, first circuit board 3 is installed in casing 1 through buckle 5 and support 4 cooperation.

More specifically, the housing 1 is further provided with a second circuit board 71, and at least one or more supporting members 4 are extended along the opening direction to form a slot 41, the slot 41 penetrates through the end of the supporting member 4 and is used for inserting the second circuit board 71, and the first circuit board 3 also covers the end of the slot 41 to limit the second circuit board 71 from falling out.

Only the second wiring board 71 is described above, and the third wiring board 72 and the like can be provided by analogy of the same principle.

In addition, the edge of the first circuit board 3 corresponding to the position of the buckle 5 is provided with a cutting groove 32, and the buckle 5 is positioned at the cutting groove 32 and is matched and clamped with the first circuit board 3.

The first circuit board 3 can be bent more easily through the grooving 32 that sets up, and is more convenient when the installation, also conveniently distinguish the corresponding relation of position when first circuit board 3 installs simultaneously, can correspond the position of grooving 32 with the position of buckle 5 fast when the installation.

The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (10)

1. The utility model provides a watchcase structure of digital display electric measuring instrument, includes the casing that is used for installing the circuit board, is used for cooperating the panel of casing installation, and this casing has an opening, the panel is installed on the corresponding open-ended position on the casing to the opening on the closure casing, correspond open-ended position in the casing be provided with panel complex first circuit board, its characterized in that, be provided with a plurality of support pieces that are used for supporting first circuit board in the casing, still be provided with the buckle that is used for cooperating first circuit board joint in the casing, compress tightly or restrict first circuit board butt on support piece.

2. The structure of a case of a digital display electric measuring instrument according to claim 1, wherein at least one or more of the supporting members is provided with a positioning block for positioning in cooperation with a notch at the edge of the first circuit board or a through hole in the first circuit board.

3. The structure of a case of a digital display electric measuring instrument according to claim 2, wherein the side surface of the supporting member is provided with a slot extending along the opening direction for inserting the second circuit board.

4. The structure of a wristwatch case of a digital display electric meter according to claim 3, wherein the slot in the support member penetrates through the end of the corresponding opening of the support member; the positioning block is positioned at the end part of the supporting piece corresponding to the opening and is positioned at one side of the slot.

5. The structure of a case of a digital display electric measuring instrument according to claim 2, 3 or 4, wherein the number of the positioning blocks is two, and the positioning blocks are respectively positioned at the ends of the openings corresponding to the two supporting pieces which are diagonally distributed.

6. The structure of a case of a digital display electric measuring instrument according to claim 1, wherein an extension member is provided between the inner wall of the case and the support member or the buckle, one side of the extension member is connected to the inner wall of the case, and the other side is connected to the support member or the buckle, and the support member or the buckle is spaced from the inner wall of the case by the extension member.

7. The structure of the case of the digital display electric measuring instrument according to claim 1, wherein the supporting member is further provided with a flange extending toward the opening direction of the case, the flange being located at one side of the first circuit board and used for positioning or limiting the edge of the first circuit board.

8. The digital display electric measuring instrument is characterized by comprising the watchcase structure of the digital display electric measuring instrument according to any one of claims 1-7, and a first circuit board is arranged in a shell of the watchcase structure and is installed in the shell in a matched mode through the buckle and the supporting piece.

9. The digital display electrical measuring instrument according to claim 8, wherein a second circuit board is further disposed in the housing, at least one or more supporting members are disposed along the opening toward the extending slot, the slot penetrates through the end portion of the supporting member and is used for inserting the second circuit board, and the first circuit board further covers the end portion of the slot to limit the second circuit board from falling out.

10. The digital display electrical measuring instrument according to claim 8 or 9, wherein a notch is formed at the edge of the first circuit board corresponding to the position of the buckle, and the buckle is located at the notch and is clamped with the first circuit board in a matching manner.