CN219935957U - Waterproof dustproof ammeter shell subassembly - Google Patents

Abstract

The utility model relates to a waterproof dustproof ammeter shell component, which comprises a front shell and a rear cover, wherein the rear end of the front shell is provided with an opening, the rear cover covers and seals the opening of the front shell, the rear surface of the front shell is provided with a connecting ring, the connecting ring is arranged around the rear end opening of the front shell, and the connecting ring protrudes backwards relative to the rear surface of the front shell; the rear cover comprises a cover plate and a protection ring, the cover plate covers an opening at one end of the connecting ring away from the front shell, the cover plate is connected with the connecting ring through a bolt, one end of the protection ring is connected to one side of the cover plate, which is close to the connecting ring, the protection ring is sleeved on the connecting ring and is attached to the connecting ring, a first sealing ring is arranged on the rear surface of the front shell, and the first sealing ring is pressed together with the front shell through the protection ring. And a sealing assembly is arranged between the protection ring and the connecting ring and comprises a first mounting groove and a second sealing ring. The utility model has the advantages of preventing external dust and water vapor from entering the ammeter and good sealing performance.

Description

Waterproof dustproof ammeter shell subassembly

Technical Field

The utility model relates to the technical field of ampere meters, in particular to a waterproof and dustproof ampere meter shell component.

Background

The ammeter is used for measuring the current in the AC/DC circuit. The ammeter is manufactured according to the fact that an electrified conductor is acted by magnetic force in a magnetic field. The ammeter is internally provided with a permanent magnet, a magnetic field is generated between electrodes, a coil is arranged in the magnetic field, two ends of the coil are respectively provided with a hairspring, the springs are respectively connected with a binding post of the ammeter, the springs are connected with the coil through a rotating shaft, and the rotating shaft is provided with a pointer relative to the front end of the ammeter. When current passes through, the current passes through the magnetic field along the spring and the rotating shaft, and the current cuts the magnetic induction line, so that the coil deflects under the action of the magnetic field force to drive the rotating shaft and the pointer to deflect. Since the magnitude of the magnetic field force increases with the current, the magnitude of the current can be observed by the degree of deflection of the pointer.

As shown in fig. 1 and 2, the ammeter in the prior art generally comprises a housing, a terminal post 3, a pointer 4, a scale mark 5 and the like. The shell comprises a front shell 1 and a rear cover 2, the rear part of the front shell 1 is opened and is covered by the rear cover 2, the rear cover 2 is a flat plate, and the front shell 1 and the rear are detachably connected through bolts 9. However, the above-mentioned ammeter has a problem: because there is a gap between the front case 1 and the rear cover 2, external dust or water vapor enters the interior of the ammeter from the gap between the front case 1 and the rear cover 2, thereby affecting the normal operation of the internal parts, which can lead to the failure of the ammeter, so the above problems need to be solved.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model provides a waterproof dustproof ammeter shell component, which solves the problems that dust or water vapor easily enters the interior of an ammeter in the prior art and the tightness is poor.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a waterproof dustproof ammeter shell assembly comprises a front shell and a rear cover, wherein the rear end of the front shell is provided with an opening, the rear cover covers and seals the opening of the front shell, the rear surface of the front shell is provided with a connecting ring, the connecting ring is arranged around the rear end opening of the front shell, and the connecting ring protrudes backwards relative to the rear surface of the front shell; the rear cover comprises a cover plate and a protection ring, the cover plate covers an opening at one end of the connecting ring away from the front shell, the cover plate is connected with the connecting ring through a bolt, one end of the protection ring is connected to one side of the cover plate, which is close to the connecting ring, the protection ring is sleeved on the connecting ring and is attached to the connecting ring, a first sealing ring is arranged on the rear surface of the front shell, and the first sealing ring is pressed together with the front shell through the protection ring.

Further, set up seal assembly between protection ring and the go-between, seal assembly includes first mounting groove and second sealing washer, and first mounting groove is for seting up the ring channel on the go-between lateral wall, and the second sealing washer sets up in first mounting groove, and the second sealing washer is compressed tightly jointly by the inner wall of protection ring and first mounting groove.

Further, set up waterproof assembly between protection ring and the go-between, waterproof assembly includes second mounting groove and dry circle, the second mounting groove is for seting up the ring channel on the go-between lateral wall, dry circle sets up in the second mounting groove, dry circle is used for absorbing the drying to the steam near the second mounting groove, dry circle is compressed tightly jointly by the inner wall of protection ring and second mounting groove.

Further, the drying ring comprises a packaging sleeve and a drying agent, the packaging sleeve is annular, a cavity is formed in the packaging sleeve, the drying agent is filled in the cavity of the packaging sleeve, and the packaging sleeve is made of a breathable material.

Further, the waterproof assembly is arranged on one side of the sealing assembly away from the front shell.

In summary, the utility model has the following beneficial technical effects:

1. in the utility model, as the connecting ring is arranged on the rear surface of the front shell and surrounds the rear end opening of the front shell, the connecting ring protrudes backwards relative to the rear surface of the front shell; the rear cover comprises a cover plate and a protection ring, the cover plate covers an opening at one end of the connecting ring far away from the front shell, the cover plate is connected with the connecting ring through a bolt, one end of the protection ring is connected to one side of the cover plate close to the connecting ring, the protection ring is sleeved on the connecting ring and is attached to the connecting ring, a first sealing ring is arranged on the rear surface of the front shell, and the first sealing ring is pressed together with the front shell by the protection ring; through the arrangement, the first sealing ring can form a sealing structure with the front shell and the protection ring, so that external dust and water vapor are prevented from entering a gap between the protection ring and the connecting ring, and the dust and the water vapor are prevented from entering the ammeter; meanwhile, as the protection ring and the connecting ring are arranged, the length of the gap between the front shell and the rear cover is increased, and the trend of the gap between the front shell and the rear cover is changed, so that external dust is more difficult to enter the ammeter; in summary, the ammeter shell component provided by the utility model has the advantages of being capable of preventing external dust and water vapor from entering the interior of the ammeter and good in sealing performance.

2. Because the sealing component is arranged between the protection ring and the connecting ring, the sealing component comprises a first mounting groove and a second sealing ring, the first mounting groove is an annular groove formed in the outer side wall of the connecting ring, the second sealing ring is arranged in the first mounting groove, and the second sealing ring is tightly pressed by the protection ring and the inner wall of the first mounting groove together; through above-mentioned setting, protection ring, second sealing washer and first mounting groove can constitute seal structure jointly, consequently when first sealing washer became invalid, seal assembly can carry out the separation to entering into dust and steam in the gap between protection ring and the go-between, avoid dust and steam to continue to enter into in the ampere meter, so seal assembly can improve the sealed effect of ampere meter.

3. Because the waterproof component is arranged between the protection ring and the connecting ring, the waterproof component comprises a second mounting groove and a drying ring, the second mounting groove is an annular groove formed in the outer side wall of the connecting ring, the drying ring is arranged in the second mounting groove and is used for absorbing and drying water vapor near the second mounting groove, and the drying ring is pressed by the protection ring and the inner wall of the second mounting groove together; through the arrangement, the protection ring, the drying ring and the second mounting groove can form a sealing structure, and when the first sealing ring and the second sealing ring fail, dust between the protection ring and the connecting ring can be blocked, so that the dust is prevented from entering the ammeter further; meanwhile, the drying ring can absorb water vapor near the second mounting groove, so that the water vapor is prevented from invading the interior of the ammeter; in summary, the waterproof assembly can further improve dustproof, waterproof and sealing effects of the ammeter.

4. The drying ring comprises a packaging sleeve and a drying agent, the packaging sleeve is annular, a cavity is formed in the packaging sleeve, the drying agent is filled in the cavity of the packaging sleeve, and the packaging sleeve is made of a breathable material; therefore, the packaging sleeve can allow moisture to pass through the packaging sleeve to contact with the drying agent, and the drying agent can absorb and dry the moisture, so that the effect of absorbing and drying is achieved.

5. The waterproof assembly is arranged on one side, far away from the front shell, of the sealing assembly, so that the possibility of contact between the drying ring and water vapor can be reduced as much as possible, the frequency of replacing the drying ring by a user is reduced as much as possible, and the waterproof assembly is convenient for the user to use and saves cost.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a front view of a prior art ammeter in the background;

FIG. 2 is a right side view of the ammeter of FIG. 1;

FIG. 3 is a side view of a waterproof and dustproof ammeter housing assembly in an embodiment;

FIG. 4 is an exploded view of the ammeter housing assembly of FIG. 3;

fig. 5 is a vertical sectional view for embodying a coupled state of the front case and the rear cover.

Reference numerals illustrate:

in the figure, 1, a front shell; 2. a rear cover; 3. binding posts; 4. a pointer; 5. a scale mark; 6. a cover plate; 7. a protective ring; 8. a connecting ring; 9. a bolt; 10. a first seal ring; 11. a first mounting groove; 12. a second seal ring; 13. a second mounting groove; 14. drying the ring; 141. packaging sleeves; 142. and (5) drying agent.

Detailed Description

In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the utility model herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present utility model, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.

Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the term "plurality" shall mean two as well as more than two.

It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Examples

Referring to fig. 3-5, a waterproof and dustproof ammeter case assembly is disclosed in the present utility model, and includes a front case 1 and a rear cover 2. The front shell 1 is a rectangular shell with an opening at the rear end, and the rear cover 2 covers and closes the opening at the rear end of the front shell 1. The front shell 1 and the rear cover 2 are both made of plastic materials.

The rear surface of the front shell 1 is provided with a connecting ring 8, the connecting ring 8 and the front shell 1 are integrally formed, the connecting ring 8 is arranged around the rear end opening of the front shell 1, and the connecting ring 8 protrudes backwards relative to the rear surface of the front shell 1. The rear cover 2 comprises a cover plate 6 and a protection ring 7, the cover plate 6 covers an opening of one end of the connecting ring 8, which is far away from the front shell 1, the cover plate 6 is connected with the connecting ring 8 through bolts 9, one end of the protection ring 7 is connected to one side of the cover plate 6, which is close to the connecting ring 8, the protection ring 7 and the cover plate 6 are integrally formed, and the protection ring 7 is sleeved on the connecting ring 8 and is attached to the connecting ring 8. The rear surface of the front case 1 is adhered with a first sealing ring 10, and when the front case 1 is connected with the rear cover 2, the first sealing ring 10 is pressed together with the front case 1 by the protection ring 7. Through the arrangement, the first sealing ring 10 can form a sealing structure with the front shell 1 and the protection ring 7, so that external dust and water vapor are prevented from entering a gap between the protection ring 7 and the connecting ring 8, and further the dust and the water vapor are prevented from entering the interior of the ammeter shell; meanwhile, the length of the gap between the front shell 1 and the rear cover 2 is increased due to the arrangement of the protection ring 7 and the connecting ring 8, and the trend of the gap between the front shell 1 and the rear cover 2 is changed, so that external dust is more difficult to enter the ammeter.

A sealing assembly is also arranged between the protection ring 7 and the connecting ring 8. The seal assembly includes a first mounting groove 11 and a second seal ring 12. The first mounting groove 11 is an annular groove formed in the outer side wall of the connecting ring 8, the second sealing ring 12 is adhered in the first mounting groove 11, and when the front shell 1 is connected with the rear cover 2, the second sealing ring 12 is pressed by the protection ring 7 and the inner wall of the first mounting groove 11. Through the arrangement, the protection ring 7, the second sealing ring 12 and the first mounting groove 11 can jointly form a sealing structure, so that when the first sealing ring 10 fails, the sealing assembly can separate dust and water vapor in a gap between the protection ring 7 and the connecting ring 8, and the dust and the water vapor are prevented from continuously entering the ammeter, so that the sealing effect of the ammeter can be improved.

A waterproof component is also arranged between the protection ring 7 and the connecting ring 8. The waterproof assembly includes a second mounting groove 13 and a drying ring 14. The second mounting groove 13 is an annular groove formed in the outer side wall of the connecting ring 8, the drying ring 14 is arranged in the second mounting groove 13, the drying ring 14 is used for absorbing and drying water vapor near the second mounting groove 13, and when the front shell 1 is connected with the rear cover 2, the drying ring 14 is jointly pressed by the protection ring 7 and the inner wall of the second mounting groove 13. Through the arrangement, the protection ring 7, the drying ring 14 and the second mounting groove 13 can form a sealing structure, and when the first sealing ring 10 and the second sealing ring 12 fail, dust between the protection ring 7 and the connecting ring 8 can be blocked, so that the dust is prevented from further entering the ammeter. Meanwhile, the drying ring 14 can absorb water vapor near the second mounting groove 13, so that the water vapor is prevented from invading the interior of the ammeter. In summary, the waterproof assembly can further improve dustproof, waterproof and sealing effects of the ammeter.

Specifically, the desiccant collar 14 includes a wrapper 141 and a desiccant 142. The packing sleeve 141 is in a ring shape, a cavity is provided in the packing sleeve 141, the desiccant 142 is filled in the cavity of the packing sleeve 141, and the packing sleeve 141 is made of a breathable material such as non-woven fabric. Therefore, the package cover 141 can allow moisture to pass through itself to contact with the desiccant 142, and the desiccant 142 can be calcium oxide, so that the package cover has the advantages of low cost and strong water absorption capacity, and the desiccant 142 can absorb and dry the moisture, thereby achieving the effect of water absorption and drying.

In actual use, if the drying ring 14 absorbs excessive moisture, its absorption capacity will be reduced, and at this time, the drying ring 14 needs to be replaced in time, which is time-consuming and laborious. In order to solve the above problems, the waterproof assembly is disposed on the side of the sealing assembly away from the front case 1, so that the possibility of the drying ring 14 contacting with water vapor can be reduced as much as possible, thereby reducing the frequency of replacing the drying ring 14 as much as possible, not only facilitating the use of the user, but also saving the cost.

The working principle of the embodiment is as follows: in the present embodiment, since the connection ring 8 is provided on the rear surface of the front case 1, the connection ring 8 is provided around the rear end opening of the front case 1, and the connection ring 8 protrudes rearward with respect to the rear surface of the front case 1; the rear cover 2 comprises a cover plate 6 and a protection ring 7, the cover plate 6 covers an opening of one end of the connecting ring 8 far away from the front shell 1, the cover plate 6 is connected with the connecting ring 8 through bolts 9, one end of the protection ring 7 is connected to one side of the cover plate 6 close to the connecting ring 8, the protection ring 7 is sleeved on the connecting ring 8 and is attached to the connecting ring 8, a first sealing ring 10 is arranged on the rear surface of the front shell 1, and the first sealing ring 10 is pressed together with the front shell 1 by the protection ring 7; through the arrangement, the first sealing ring 10 can form a sealing structure with the front shell 1 and the protection ring 7, so that external dust and water vapor are prevented from entering a gap between the protection ring 7 and the connecting ring 8, and further the dust and the water vapor are prevented from entering the ammeter; meanwhile, as the protection ring 7 and the connecting ring 8 are arranged, the length of the gap between the front shell 1 and the rear cover 2 is increased, and the trend of the gap between the front shell 1 and the rear cover 2 is changed, so that external dust is more difficult to enter the ammeter; in addition, the dustproof and waterproof capacity of the ammeter can be further improved due to the arrangement of the sealing component and the waterproof component; in summary, the ammeter housing assembly provided in the embodiment has the advantages of preventing external dust and water vapor from entering the ammeter and being good in sealing performance.

It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being apparent from variations or modifications that may be made by those skilled in the art are within the scope of the utility model.

Claims (5)

1. The utility model provides a waterproof dustproof ampere meter shell subassembly, includes preceding shell (1) and back lid (2), the rear end opening of preceding shell (1), back lid (2) cover the opening of closing, its characterized in that with preceding shell (1): the rear surface of the front shell (1) is provided with a connecting ring (8), the connecting ring (8) is arranged around the rear end opening of the front shell (1), and the connecting ring (8) protrudes backwards relative to the rear surface of the front shell (1); the rear cover (2) comprises a cover plate (6) and a protection ring (7), the cover plate (6) covers an opening of one end of the front shell (1) away from the connection ring (8), the cover plate (6) is connected with the connection ring (8) through bolts (9), one end of the protection ring (7) is connected to one side, close to the connection ring (8), of the cover plate (6), the protection ring (7) is sleeved on the connection ring (8) and is attached to the connection ring (8), a first sealing ring (10) is arranged on the rear surface of the front shell (1), and the first sealing ring (10) is pressed together with the front shell (1) through the protection ring (7).

2. A waterproof and dustproof ammeter housing assembly as defined in claim 1, wherein: set up seal assembly between guard ring (7) and go-between (8), seal assembly includes first mounting groove (11) and second sealing washer (12), first mounting groove (11) are for seting up the ring channel on go-between (8) lateral wall, second sealing washer (12) set up in first mounting groove (11), second sealing washer (12) are compressed tightly jointly by guard ring (7) and the inner wall of first mounting groove (11).

3. A waterproof and dustproof ammeter housing assembly as defined in claim 2, wherein: waterproof assembly is set up between protection ring (7) and go-between (8), waterproof assembly includes second mounting groove (13) and dry circle (14), second mounting groove (13) are for seting up the ring channel on go-between (8) lateral wall, dry circle (14) set up in second mounting groove (13), dry circle (14) are used for absorbing the drying to the steam near second mounting groove (13), dry circle (14) are compressed tightly jointly by the inner wall of protection ring (7) and second mounting groove (13).

4. A waterproof and dustproof ammeter housing assembly as in claim 3, wherein: the drying ring (14) comprises a packaging sleeve (141) and a drying agent (142), the packaging sleeve (141) is annular, a cavity is formed in the packaging sleeve (141), the drying agent (142) is filled in the cavity of the packaging sleeve (141), and the packaging sleeve (141) is made of a breathable material.

5. A waterproof and dustproof ammeter housing assembly as in claim 4, wherein: the waterproof component is arranged on one side of the sealing component away from the front shell (1).