CN218974441U

CN218974441U - Waterproof housing assembly

Info

Publication number: CN218974441U
Application number: CN202223296396.8U
Authority: CN
Inventors: 丁超; 王波; 潘尧舜
Original assignee: Chengdu Great Wall Development Technology Co ltd
Current assignee: Chengdu Great Wall Development Technology Co ltd
Priority date: 2022-12-08
Filing date: 2022-12-08
Publication date: 2023-05-05
Anticipated expiration: 2032-12-08

Abstract

The utility model relates to the field of production and manufacturing of instruments, in particular to a waterproof shell assembly. The connector comprises a shell, a connector assembly and a sealing ring, wherein a built-in cavity is formed by surrounding the shell, a circuit board is arranged in the built-in cavity, and a mounting hole is formed in the shell. The connector assembly comprises a first connector and a second connector, the first connector is arranged in the mounting hole and connected with the circuit board, the first connector comprises a slot and an electrode plate, the electrode plate is sealed in the slot, and the sealing ring is arranged between the first connector and the mounting hole and can prevent water from entering the waterproof housing assembly from the position between the mounting hole and the first connector. The slot opening is towards the outer side of the built-in cavity, the second connector is inserted into the slot outside the built-in cavity, and the second connector is connected with an external battery, so that power can be supplied to the circuit board, and the battery can be replaced by disconnecting the first connector and the second connector after the battery is powered down.

Description

Waterproof housing assembly

Technical Field

The utility model relates to the field of production and manufacturing of instruments, in particular to a waterproof shell assembly.

Background

The existing electric energy meter needs to transmit data of the electric energy meter to a monitoring end in real time through a transmitter arranged in the electric energy meter, so that the service condition of the electric energy meter can be monitored in real time. When the power supply is insufficient and the power failure of a user occurs, the current disappears, and the data cannot be sent in real time, so that the data is lost. Therefore, the electric energy meter is required to have the function of power failure meter reading in the market, so that the electric energy meter can be powered during power failure, and the electric energy meter data can be transmitted to the monitoring end in real time.

At present, a battery is generally welded on a circuit board PCBA (Printed Circuit Board Assembly) in a meter, but is limited by factors such as space size and price of an electric energy meter, the battery is generally a disposable lithium battery, the capacity cannot be quite large, and the electric energy meter is directly scrapped after the electric quantity of the battery is exhausted, so that the battery needs to be designed to be externally arranged and can be replaced. However, many electric energy meters are installed outdoors, and the external battery has the risk of water inflow, and the damage of the electric energy meter can be caused after water inflow.

Disclosure of Invention

An object of the present disclosure is to provide a waterproof housing assembly, and then overcome the waterproof problem of external battery.

The present disclosure provides a waterproof enclosure assembly comprising:

the shell is surrounded to form a built-in cavity, the built-in cavity is provided with a circuit board, and the shell is provided with a mounting hole;

the connector assembly comprises a first connector and a second connector, the first connector is arranged in the mounting hole and is connected with the circuit board, the first connector comprises a slot and an electrode plate, the electrode plate is sealed in the slot, an opening of the slot faces to the outer side of the built-in cavity, the second connector is inserted into the slot outside the built-in cavity, and the second connector is connected with an external battery and can supply power for the circuit board;

the sealing ring is arranged at the joint of the first joint and the mounting hole.

In some example embodiments of the present disclosure, the housing is punched inward to form the mounting hole, the mounting hole including a first hole portion and a second hole portion communicating, the first hole portion to the second hole portion having a gradually decreasing aperture.

In some example embodiments of the present disclosure, the first connector includes a socket end and a terminal end connected, the socket end gradually decreasing in diameter toward the terminal end, the socket end being provided at the first hole portion, and the terminal end being provided at the second hole portion.

In some example embodiments of the present disclosure, a junction of the receptacle end and the terminal end forms a first step, a junction of the first hole portion and the second hole portion forms a second step, and the seal ring is disposed between the first step and the second step.

In some example embodiments of the present disclosure, the receptacle end protrudes from the first aperture away from the second aperture, and the terminal extends beyond the second aperture away from the first aperture.

In some example embodiments of the present disclosure, a lock nut is included; the wiring terminal is provided with external threads, and the nut is connected with the external threads and abuts against the first hole part.

In some example embodiments of the present disclosure, the second connector includes an insertion end and a holding end, the insertion end is inserted into the insertion end, and after the insertion end is inserted into the insertion end, the holding end is located outside the insertion end, and the holding end is provided with an anti-slip groove.

In some example embodiments of the present disclosure, the slot protrudes inward in the axial direction to form a boss, the second connector is recessed inward in the axial direction to form a groove, and the boss cooperates with the groove to prevent the electrode tab from being connected erroneously when the second connector is inserted into the slot.

In some example embodiments of the present disclosure, a slot is provided in the slot, and the second connector is provided with a buckle matched with the slot, and the buckle can be clamped in the slot.

In some example embodiments of the present disclosure, the first joint is an injection molded piece and the electrode tab is injection sealed in the slot.

The waterproof housing assembly of the scheme has the following beneficial effects: the connector comprises a shell, a connector assembly and a sealing ring, wherein a built-in cavity is formed by surrounding the shell, a circuit board is arranged in the built-in cavity, and a mounting hole is formed in the shell. The connector assembly comprises a first connector and a second connector, the first connector is arranged in the mounting hole and connected with the circuit board, the first connector comprises a slot and an electrode plate, the electrode plate is sealed in the slot, and the sealing ring is arranged between the first connector and the mounting hole and can prevent water from entering the waterproof housing assembly from the position between the mounting hole and the first connector. The slot opening is towards the outer side of the built-in cavity, the second connector is inserted into the slot outside the built-in cavity, and the second connector is connected with an external battery, so that power can be supplied to the circuit board, and the battery can be replaced by disconnecting the first connector and the second connector after the battery is powered down.

The waterproof housing assembly can realize battery replacement and simultaneously can also compromise the waterproof performance of the shell, and the damage of the circuit board of the built-in cavity caused by water inflow of the shell is avoided.

Other features and advantages of the present disclosure will be apparent from the following detailed description, or may be learned in part by the practice of the disclosure.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure. It will be apparent to those of ordinary skill in the art that the drawings in the following description are merely examples of the disclosure and that other drawings may be derived from them without undue effort.

Fig. 1 is a first structural schematic view of a waterproof case in an embodiment of the present utility model;

fig. 2 is a second structural schematic view of the waterproof case in the embodiment of the present utility model;

fig. 3 is a schematic view of a third structure of the waterproof case in the embodiment of the present utility model;

FIG. 4 is a front view of a joint assembly according to an embodiment of the present utility model;

FIG. 5 is an isometric view of a joint assembly in an embodiment of the utility model;

fig. 6 is an exploded view of a joint assembly in an embodiment of the present utility model.

Reference numerals illustrate:

100. a housing; 110. a built-in cavity; 120. a circuit board; 130. a mounting hole; 131. a first hole portion; 132. a second hole portion; 210. a first joint; 211. a slot; 212. an electrode sheet; 213. a socket end; 214. a terminal; 215. an external thread; 220. a second joint; 221. an insertion end; 222. a holding end; 223. an anti-skid groove; 300. an external battery; 400. a seal ring; 410. a first step; 420. a second step; 500. a lock nut; 610. a boss; 620. a groove.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the disclosed aspects may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known methods, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the disclosure.

The disclosure is further described in detail below with reference to the drawings and detailed description. It should be noted that the technical features of the embodiments of the present disclosure described below may be combined with each other as long as they do not collide with each other. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present disclosure and are not to be construed as limiting the present disclosure.

It should be noted that: references herein to "a plurality" means two or more. "and/or" describes an association relationship of an association object, meaning that there may be three relationships, e.g., a and/or B may represent: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The embodiment of the disclosure provides a waterproof housing assembly, can apply to electric energy meter and various instrument cases, because the battery is generally welded on the circuit board PCBA (Printed Circuit Board Assembly) in the table at present, but receive the restriction of factors such as electric energy meter space size and price, the battery generally adopts disposable lithium cell, and the capacity can not accomplish very big, just lead to the electric energy meter to scrap directly after the battery electric quantity is spent, consequently, need design into external can change the battery, waterproof housing assembly can also compromise the waterproof of casing 100 when realizing changing the battery, avoid casing 100 to intake and lead to the circuit board 120 of built-in chamber 110 to damage.

Referring to fig. 1 to 3, the waterproof housing assembly is applied to an electric energy meter, in which a built-in cavity 110 of the electric energy meter is mounted with a circuit board 120, and the waterproof housing assembly includes a housing 100, a joint assembly and a sealing ring 400. The housing 100 encloses an internal cavity 110, the internal cavity 110 is provided with a circuit board 120, and an external battery 300 is mounted outside the internal cavity 110. The connector assembly is disposed on the housing 100 and connects the circuit board 120 and the external battery 300, and the connector assembly can replace the external battery 300.

Since the electric energy meter and the instrument box are likely to be installed outdoors, the waterproof of the joint assembly installation place is important, and the sealing ring 400 provided at the installation hole 130 and the joint assembly place can play a good waterproof role.

Referring to fig. 1, the inside of the housing 100 is a side of the internal cavity 110, and the outside of the housing 100 is a side corresponding to the internal cavity 110.

Referring to fig. 1 to 3, the housing 100 is provided in an electric energy meter or an instrument box, protects electric components inside the electric energy meter or the instrument box, and the housing 100 may be made of metal or plastic. The mounting hole 130 is used for mounting the joint assembly, the mounting hole 130 can be arranged at any position of the housing 100, and the mounting hole 130 can be formed according to actual needs.

In some embodiments, as shown in connection with fig. 3, the housing 100 is punched to form the mounting hole 130 to the inside, and the mounting hole 130 includes the first hole portion 131 and the second hole portion 132 communicating with each other, and the diameters of the first hole portion 131 to the second hole portion 132 gradually decrease. Such mounting holes 130 are easier to mold and also provide a limiting function when the joint assembly is installed.

In another embodiment, the housing 100 is a through hole, and the through hole is formed in the housing 100 by punching or cutting, the joint assembly is mounted on the through hole, and the sealing ring 400 or the sealant is matched to play a waterproof role.

Referring to fig. 5 and 6, the connector assembly includes a first connector 210 and a second connector 220, one of the first connector 210 and the second connector 220 is a male socket, and the other is a female socket, and the electrical connection is achieved through the mutual cooperation of the first connector 210 and the second connector 220.

The first connector 210 is disposed in the mounting hole 130 and connected to the circuit board 120, the first connector 210 includes a slot 211 and an electrode plate 212, the electrode plate 212 is sealed in the slot 211, the slot 211 is opened toward the outside of the internal cavity 110, and the electrode plate 212 is inserted into the slot 211. The first connector 210 is an injection molding piece, and the electrode plate 212 is sealed in the slot 211 by injection molding, i.e. the first connector 210 and the electrode plate 212 are formed by in-mold injection molding and encapsulation, so that the waterproof effect is good.

The first connector 210 includes a socket end 213 and a terminal 214 connected to each other, one side of the socket end 213 is recessed inward to form a socket 211, the diameter of the socket end 213 gradually decreases toward the terminal 214, the socket end 213 is provided in the first hole portion 131, and the terminal 214 is provided in the second hole portion 132. The socket end 213 protrudes from the first hole 131 away from the second hole 132, and the protruding first hole 131 can serve as a guide for the insertion of the second connector 220. The terminal 214 extends away from the first hole portion 131 to the outside of the second hole portion 132, and the extended portion can be connected to the connection line reconnection circuit board 120.

Referring to the drawing, a first step 410 is formed at the junction of the socket end 213 and the terminal 214, a second step 420 is formed at the junction of the first hole portion 131 and the second hole portion 132, and the sealing ring 400 is disposed between the first step 410 and the second step 420.

The second connector 220 is inserted into the slot 211 outside the internal cavity 110, and the external battery 300 is connected to the second connector 220, so as to supply power to the circuit board 120. The external battery 300 may be a battery that is charged in a cycle, or may be a small-capacity disposable lithium battery.

The second connector 220 includes an insertion end 221 and a holding end 222, and the insertion end 221 is inserted into the insertion hole end 213, i.e., the insertion slot 211. After the insertion end 221 is inserted into the insertion hole end 213, the holding end 222 is located outside the insertion hole end 213, and the holding end 222 is provided with an anti-slip groove 223. The holding end 222 is used for holding the holding end 222 for convenient insertion. The anti-slip groove 223 provided on the grip end 222 can increase friction at the time of insertion. Referring to fig. 1 to 3, the waterproof case assembly includes a lock nut 500. The terminal 214 is provided with an external thread 215, and a nut is connected with the external thread 215 and abuts against the first hole portion 131, and when the first connector 210 is mounted in the mounting hole 130, the first step 410 and the second step 420 cooperate to play a limiting role.

When in installation, the sealing ring 400 is sleeved on the first connector 210, and then the first connector 210 is inserted from the first hole 131, so that the first step 410 and the second step 420 are matched to play a limiting role, and meanwhile, the terminal 214 penetrates out of the first hole 131 and extends to the embedded cavity 110. The gasket 400 is now mounted between the first step 410 and the second step 420. After the first connector 210 is installed in the installation hole 130, the locking nut 500 is tightened again, one end of the first connector 210 plays a limiting role through the first step 410 and the second step 420, the other end of the first connector 210 abuts against the first hole 131 through the locking nut 500 and plays a limiting role, and the first connector 210 is fixed to keep the sealing ring 400 in a contracted state, so that a good sealing effect can be achieved.

Referring to fig. 6, the insertion groove 211 protrudes inward in the axial direction to form a boss 610, and the second connector 220 is recessed inward in the axial direction to form a groove 620, and when the second connector 220 is inserted into the insertion groove 211, the boss 610 cooperates with the groove 620 to prevent a connection error of the electrode sheet 212. By such a design, the second connector 220 can be inserted into the insertion slot 211 in one direction, and cannot be inserted if the direction of insertion is changed. Thus avoiding the electrode tab 212 from connecting the opposite electrode.

The slot 211 is provided with a clamping groove, and the second connector 220 is provided with a buckle matched with the clamping groove. The buckle can be clamped in the clamping groove, and can play a limiting role when the second connector 220 is installed on the first connector 210, so that the second connector 220 is prevented from falling off.

Referring to fig. 1 to 3, the waterproof case assembly is assembled as follows:

s100, sleeving the sealing ring 400 on the first joint 210 before installation;

s200, the first connector 210 is installed in the installation hole 130, the first connector 210 is prevented from moving through the limit of the first step 410 and the second step 420, the lock nut 500 is sleeved from the wiring terminal 214, is matched with the external thread 215 to be screwed up, abuts against the first hole 131, and the sealing ring 400 is positioned between the first step 410 and the second step 420;

s300, inserting the insertion end 221 of the second connector 220 into the slot 211, aligning the groove 620 with the boss 610 during insertion, and clamping the fastener into the clamping groove after inserting in place;

and S400, after the battery is damaged or is deficient, the second connector 220 is pulled out for replacement.

In this disclosure, waterproof shell subassembly can be external with the battery, makes things convenient for the battery to damage or change under the condition of insufficient voltage, prolongs the life-span of electric energy meter, also can not lead to the fact data loss because of battery insufficient voltage can not send data in real time. Meanwhile, the waterproof effect can be well achieved when the battery is arranged outside.

In the present disclosure, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and the like are to be construed broadly, and may be fixedly connected, detachably connected, or integrated, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the terms in this disclosure will be understood by those of ordinary skill in the art as the case may be.

In the description of the present specification, reference to the term "some embodiments" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment is included in at least one embodiment of the present disclosure. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present disclosure have been shown and described above, it should be understood that the above embodiments are illustrative and not to be construed as limiting the present disclosure, and that variations, modifications, alternatives, and variations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present disclosure, which is therefore intended to be within the scope of the present disclosure as defined by the claims and specification.

Claims

1. A waterproof enclosure assembly, comprising:

2. The waterproof housing assembly of claim 1, wherein the housing is stamped inwardly to form the mounting hole, the mounting hole including communicating first and second hole portions, the first to second hole portions having progressively smaller apertures.

3. The waterproof housing assembly of claim 2, wherein the first connector includes a socket end and a terminal end connected, the socket end tapering in diameter to the terminal end, the socket end being disposed in the first bore portion and the terminal end being disposed in the second bore portion.

4. A waterproof housing assembly according to claim 3, wherein the junction of the receptacle end and the terminal end forms a first step, the junction of the first and second bore portions forms a second step, and the seal ring is disposed between the first and second steps.

5. The waterproof housing assembly of claim 4, wherein the receptacle end projects from the first aperture away from the second aperture, and the terminal end extends beyond the second aperture away from the first aperture.

6. A waterproof enclosure assembly according to claim 3, comprising a lock nut; the wiring terminal is provided with external threads, and the nut is connected with the external threads and abuts against the first hole part.

7. The waterproof housing assembly of claim 4, wherein the second connector comprises an insertion end and a holding end, the insertion end being inserted into the receptacle end, the holding end being located outside the receptacle end after the insertion end is inserted into the receptacle end, the holding end being provided with an anti-slip slot.

8. The waterproof housing assembly according to claim 1, wherein the slot is protruded inwards in the axial direction to form a boss, the second connector is recessed inwards in the axial direction to form a groove, and the boss cooperates with the groove to prevent the electrode sheet from being connected incorrectly when the second connector is inserted into the slot.

9. The waterproof housing assembly of claim 1, wherein a slot is provided in the receptacle, and the second connector is provided with a clip matching the slot, the clip being capable of being snapped into the slot.

10. The waterproof housing assembly of claim 1, wherein the first connector is an injection molded piece and the electrode tab is injection sealed in the slot.