CN213543951U

CN213543951U - Meter circuit board sealing box with sealing state indicating function

Info

Publication number: CN213543951U
Application number: CN202022822269.1U
Authority: CN
Inventors: 曾宗喆
Original assignee: Chongqing Tuyuan Internet Of Things Technology Co ltd
Current assignee: Chongqing Tuyuan Internet Of Things Technology Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-06-25
Anticipated expiration: 2030-11-30

Abstract

The utility model provides a circuit board seal box in table of encapsulated situation function is instructed in area, include: the box body, lid and sealed piece are used for placing the circuit board in the box body, are covered with the lid on the box body, form the box chamber behind box body and the lid lock, have seted up the inspection hole on lid or box body, and the inspection hole communicates the box chamber, and the inspection hole is sealed by sealed piece, and sealed piece adopts elastic material to make. Circuit board seal box in table of sealed state function is instructed in area solves prior art and adopts to open the aperture on the casing and suppress and detect whether leak and judge sealed problem that leads to the detection procedure troublesome.

Description

Meter circuit board sealing box with sealing state indicating function

Technical Field

The utility model relates to an ammeter or water gauge, concretely relates to circuit board seal box in table of sealed state function is instructed in area.

Background

At present, the requirement of the existing intelligent instrument on shell sealing is higher and higher, and manufacturers generally adopt encapsulation or mechanical compression sealing of a sealing ring for sealing.

The encapsulation process is reliable in sealing, but the process is complex and the subsequent maintainability is low. The mechanical seal has the difficult problem that the sealing effect cannot be visually detected. The common manufacturer method is to judge the sealing effect by opening a small hole on the shell and pressing to detect whether the leakage exists, and then seal the leakage detecting hole after the detection is qualified.

The first disadvantage of this process is that the process is tedious, the second is that the resealing of the leak testing hole is undetected, there is a possibility of leakage, and the third is that it is difficult to detect multiple products simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a circuit board seal box in table of encapsulated situation function is instructed in area solves prior art and adopts to open the aperture on the casing and suppress and detect whether leak and judge sealed trouble problem that leads to the detection process.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a circuit board seal box in table of encapsulated situation function is instructed in area, include: the box body, lid and sealed piece are used for placing the circuit board in the box body, are covered with the lid on the box body, form the box chamber behind box body and the lid lock, have seted up the inspection hole on lid or box body, and the inspection hole communicates the box chamber, and the inspection hole is sealed by sealed piece, and sealed piece adopts elastic material to make.

Preferably, the edge of one side of the sealing block protrudes to form a first convex ring, the edge of the other side of the sealing block protrudes to form a second convex ring, the inner wall of the box cover or the box body is sunken to form a first accommodating groove, the first accommodating groove surrounds the detection hole, the first accommodating groove is used for the first convex ring to be placed in, a pressing mechanism is installed beside the detection hole and used for pressing the edge of the sealing block on the box body or the box cover, and the second convex ring extends into the pressing mechanism.

Preferably, the pressing mechanism includes: the screw rod and the clamp ring are mounted on the inner wall of the box cover or the box body, the screw rod is connected with the screw rod in a threaded mode, the screw rod is fixed to the clamp ring, the clamp ring is used for pressing the sealing block onto the inner wall of the box cover or the box body, the end face of the clamp ring, which deviates from the screw rod, is sunken to form a second accommodating groove, and the second accommodating groove is used for the second convex ring to stretch into.

Preferably, the pressing mechanism is provided with an indicator lamp, a switch mechanism and a 5v power supply, the cathode of the indicator lamp is grounded, the anode of the indicator lamp is connected with the 5v power supply through the switch mechanism, the switch mechanism is tightly attached to the sealing block, the switch mechanism is closed when the sealing block is protruded towards the side back to the box cavity, and the sealing block is made of a light-transmitting material.

Preferably, the switching mechanism includes: the conducting strip, the positive plate, negative pole piece and contact bar, the conducting strip, positive plate and negative pole piece all adopt conducting material to make, the conducting strip can be keeping away from and be close to the direction upward motion of sealed piece under the direction of screw rod, install alternate positive plate and negative pole piece in one side that the conducting strip is close to sealed piece, the negative pole piece is connected to the pilot lamp positive pole, the positive plate is connected to the 5v power, the conducting strip is fixed to contact bar one end, the contact bar other end is hugged closely with sealed piece, the conducting strip is with positive plate and negative pole piece electricity switch-on when sealed piece is protruding to deviating from the box chamber.

Compared with the prior art, the utility model discloses following beneficial effect has:

elastic sealing block is arranged, the whole sealing box is placed in a negative pressure environment, the atmospheric pressure is still in a box cavity, the two sides of the sealing block form pressure difference, whether the sealing block is protruding or not only needs to be observed, whether the whole sealing box is sealed or not can be judged, if the sealing block is not sealed, the sealing block cannot be protruding, operation trouble caused by the fact that a detection hole is sealed subsequently is avoided, the problem that the sealing effect of the detection hole cannot be determined due to the fact that the detection hole is sealed subsequently is avoided, the outgoing quality of a product is guaranteed, and market competitiveness is improved.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

FIG. 1 is a schematic diagram of a circuit board seal box in a watch with a function of indicating the sealing state;

fig. 2 is an enlarged view at the sealing block.

Reference numerals: the box body 1, the box cover 2, the thread bush 21, the sealing block 3, the first convex ring 31, the second convex ring 32, the circuit board 4, the pressing mechanism 5, the screw 51, the pressing ring 52, the indicator lamp 6, the switch mechanism 7, the conducting strip 71, the positive pole piece 72, the negative pole piece 73, the contact rod 74, the spring 75 and the 5v power supply 8.

Detailed Description

In order to make the utility model realize that technical means, creation characteristics, achievement purpose and effect are clearer and easily understand, it is right to combine below the figure and the detailed implementation mode the utility model discloses do further explanation:

as shown in fig. 1 and fig. 2, the utility model provides a circuit board 4 seal box in table of sealed state function is instructed in area, include: box body 1, lid 2 and sealed piece 3 are used for placing circuit board 4 in the box body 1, are covered with lid 2 on the box body 1, form the box chamber behind box body 1 and the 2 locks of lid, have seted up the inspection hole on lid 2 or box body 1, and the inspection hole communicates the box chamber, and the inspection hole is sealed by sealed piece 3, and sealed piece 3 adopts elastic material to make.

In order to avoid the separation of the edge of the sealing block 3 from the box cover 2 or the box body 1, the edge of one side of the sealing block 3 protrudes to form a first convex ring 31, the edge of the other side of the sealing block 3 protrudes to form a second convex ring 32, the inner wall of the box cover 2 or the box body 1 is sunken to form a first accommodating groove, the first accommodating groove surrounds the detection hole, the first accommodating groove is used for placing the first convex ring 31, a pressing mechanism 5 is installed beside the detection hole, the pressing mechanism 5 is used for pressing the edge of the sealing block 3 onto the box body 1 or the box cover 2, and the second convex ring extends into the pressing mechanism 5. Because the sealing block 3 is not separated from the box cover 2 or the box body 1 by the adhesive force of the sealant when the sealing block 3 seals the detection hole only by the sealant and the like, the adhesive force is limited and is easy to fall off, and the design is made in order to avoid falling off. If the sealing block 3 needs to move relative to the box cover 2 and the box body 1, the first projection is required to go beyond the first accommodating groove, and the sealing block 3 must not jump, so that the sealing block 3 cannot slide relative to the box cover 2 and the box body 1. Meanwhile, if the sealing block 3 needs to slide relative to the pressing mechanism 5, the second convex ring needs to jump out of the pressing mechanism 5, which is not necessarily the case. The design of above-mentioned structure, in addition, adopt sealed glue sealed between sealed piece 3 and place lid 2 or the box body 1, the phenomenon that the inspection hole was opened to sealed piece 3 in-process such as detection just so can not appear, has improved the adhesive force of sealed piece 3 with place lid 2 and box body 1.

In order to design the pressing mechanism 5 with a simple structure, the pressing mechanism 5 includes: screw rod 51 and clamp ring 52 install thread bush 21 on lid 2 or box body 1 inner wall, and thread bush 21 threaded connection has screw rod 51, and screw rod 51 is fixed to clamp ring 52, and clamp ring 52 is used for compressing tightly sealed piece 3 on lid 2 or box body 1 inner wall of place, and clamp ring 52 deviates from the sunken second holding tank that forms of terminal surface of screw rod 51, and the second holding tank supplies second bulge loop 32 to stretch into.

Since it is very difficult to observe whether the sealing block 3 is protruded, the following design is made for the convenience of observation: an indicator lamp 6, a switch mechanism 7 and a 5v power supply 8 are installed on the pressing mechanism 5, the cathode of the indicator lamp 6 is grounded, the anode of the indicator lamp 6 is connected with the 5v power supply 8 through the switch mechanism 7, the switch mechanism 7 is tightly attached to the sealing block 3, when the sealing block 3 is protruded to the side back from the box cavity, the switch mechanism 7 is closed, and the sealing block 3 is made of a light-transmitting material (the sealing block 3 is made of a rubber material which has elasticity and light-transmitting performance).

In order to design the switching mechanism 7 with a simple structure, the switching mechanism 7 includes: conducting strip 71, positive plate 72, negative pole piece 73, contact rod 74 and, conducting strip 71, positive plate 72 and negative pole piece 73 all adopt conducting material to make, conducting strip 71 can move in the direction of keeping away from and being close to sealed piece 3 under the direction of screw 51, install positive plate 72 and negative pole piece 73 at mutual interval on conducting strip 71 is close to sealed piece 3 one side, negative pole piece 73 is connected to pilot lamp 6 positive pole, positive plate 72 is connected to 5v power 8, conducting strip 71 is fixed to contact rod 74 one end, the contact rod 74 other end hugs closely with sealed piece 3, conducting strip 71 electrically connects positive plate 72 and negative pole piece 73 to connect when sealed piece 3 is protruding to the box chamber of keeping away from, install spring 75 in conducting strip 71 department, can keep trigger bar to deviate from conducting strip 71 one end to hug closely with sealed piece 3 all the time under spring 75 elasticity. When the whole sealing box is placed in a negative pressure space, because the pressure in the sealing box is high, the sealing block 3 tends to protrude out of the box cover 2, under the elastic force of the spring 75, the conducting plate 71 is tightly attached to the positive plate 72 and the negative plate 73, the indicator lamp 6 is electrically connected, the indicator lamp 6 is bright, the indicator lamp 6 emits some light rays through the sealing block 3, the fact that the pressure in the sealing box is high is prompted, and the quality of the sealing box meets requirements. When the pressure inside the sealing case is not detected, the pressure inside the sealing case is almost the same as the pressure outside the sealing case, and the elastic force of the spring 75 is small, so that the sealing block 3 does not protrude outward so much by the trigger lever.

Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.

Claims

1. The utility model provides a circuit board seal box in table of sealed state function is instructed in area which characterized in that includes: the box body, lid and sealed piece are used for placing the circuit board in the box body, are covered with the lid on the box body, form the box chamber behind box body and the lid lock, have seted up the inspection hole on lid or box body, and the inspection hole communicates the box chamber, and the inspection hole is sealed by sealed piece, and sealed piece adopts elastic material to make.

2. The watch circuit board sealing box with the function of indicating the sealing state as claimed in claim 1, wherein a first convex ring is formed on one side edge of the sealing block in a protruding manner, a second convex ring is formed on the other side edge of the sealing block in a protruding manner, a first accommodating groove is formed on the inner wall of the box cover or the box body in a recessed manner, the first accommodating groove surrounds the detection hole, the first convex ring is arranged in the first accommodating groove, a pressing mechanism is arranged beside the detection hole and used for pressing the edge of the sealing block on the box body or the box cover, and the second convex ring extends into the pressing mechanism.

3. A sealed circuit board box in table of function of indicating the sealed state of claim 2, characterized in that, hold-down mechanism includes: the screw rod and the clamp ring are mounted on the inner wall of the box cover or the box body, the screw rod is connected with the screw rod in a threaded mode, the screw rod is fixed to the clamp ring, the clamp ring is used for pressing the sealing block onto the inner wall of the box cover or the box body, the end face of the clamp ring, which deviates from the screw rod, is sunken to form a second accommodating groove, and the second accommodating groove is used for the second convex ring to stretch into.

4. A watch circuit board seal box with a function of indicating a sealing state according to claim 3, characterized in that an indicator lamp, a switch mechanism and a 5v power supply are installed on the pressing mechanism, the cathode of the indicator lamp is grounded, the anode of the indicator lamp is connected with the 5v power supply through the switch mechanism, the switch mechanism is tightly attached to the seal block, when the seal block is protruded to the side away from the box cavity, the switch mechanism is closed, and the seal block is made of a light-transmitting material.

5. A sealed circuit board box in watch with function of indicating sealed state of claim 4, characterized in that the switch mechanism comprises: the conducting strip, the positive plate, negative pole piece and contact bar, the conducting strip, positive plate and negative pole piece all adopt conducting material to make, the conducting strip can be keeping away from and be close to the direction upward motion of sealed piece under the direction of screw rod, install alternate positive plate and negative pole piece in one side that the conducting strip is close to sealed piece, the negative pole piece is connected to the pilot lamp positive pole, the positive plate is connected to the 5v power, the conducting strip is fixed to contact bar one end, the contact bar other end is hugged closely with sealed piece, the conducting strip is with positive plate and negative pole piece electricity switch-on when sealed piece is protruding to deviating from the box chamber.