Installation structure of digital display module of digital display self-recovery overvoltage and undervoltage protector

Abstract

The utility model provides an installation structure of a digital display module of a digital display self-recovery overvoltage and undervoltage protector, the installation structure is installed on the digital display module and a protector housing, the front side of the protector housing is an open opening into which the digital display module is embedded, and a limiting mechanism for limiting the front and back movement of the digital display module is arranged between the inner wall of the opening and the outer wall of the digital display module. And the digital display module is clamped and matched with the inner wall of the opening of the protector shell through the limiting mechanism. According to the utility model, the digital display module and the protector shell are mutually clamped and matched, so that the digital display module is quick and simple to install, different digital display modules can be conveniently replaced by the clamping and matching of the digital display module to meet the requirements, and the limiting mechanism of the clamping and matching is completely molded by a mold, so that the cost is lower, the limiting mechanism is not easy to damage and the yield is high; the limiting mechanism in clamping fit is simple in structure and low in material consumption, so that the material consumption of the product is reduced, the cost is reduced, and a mold is relatively simple and low in maintenance rate.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit protectors, in particular to a digital display self-resetting over- and under-voltage protector. Background Art

[0002] At present, the digital display module of the self-resetting over- and under-voltage protector on the market is fixed to the protector housing by screws. Its assembly efficiency is low, it is not beautiful, and it is difficult to replace. The screw fixation requires processing multiple mounting columns on the housing, which not only requires increasing the material consumption, but also makes the production mold design complicated. In addition, since the size of the mounting column needs to be longer to meet the requirements of screw fixation, the strength of the mounting column needs to be made thicker, otherwise it is easy to be damaged. The thickening of the mounting column further increases the material consumption. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to design the installation structure of the digital display module to achieve the purpose of simple structure and less material consumption.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A mounting structure for a digital display module of a digital self-resetting over- and under-voltage protector is installed on the digital display module and the protector housing. The front side of the protector housing is an open opening for the digital display module to be embedded and inserted into. A limiting mechanism is provided between the inner wall of the opening and the outer wall of the digital display module to limit the forward and backward movement of the digital display module. The digital display module is mutually engaged with the inner wall of the opening of the protector housing through the limiting mechanism.

[0006] Preferably, the limiting mechanism includes a latch protrusion protruding from the outer wall of the digital display module, and the corresponding inner wall of the protector shell opening is provided with a slot for the latch protrusion to be inserted into, and the slot is not connected to the front side of the protector shell. The latch protrusion of the digital display module cooperates with the front end wall of the slot to form a limit stop for limiting the digital display module from sliding out of the opening.

[0007] Preferably, the protector housing comprises a rear housing and a front housing, the card slot is arranged on the front housing, and one end of the card slot passes through the front housing.

[0008] Preferably, the limiting mechanism further comprises a stop bar protruding from the open inner wall of the protector housing, and the rear end of the digital display module abuts against the stop bar after the digital display module is installed.

[0009] Preferably, the front surface of the clamping protrusion is a plane, and the back surface of the clamping protrusion is an inclined surface or a curved surface.

[0010] Preferably, the baffle is provided at least on two opposite sides of the open inner wall of the protector housing, and the baffle is disconnected at the intersection of the baffle and the slot.

[0011] Preferably, the front shell is made of plastic, and the thickness of the shell where the card slot of the front shell is located is within 5 mm.

[0012] Preferably, the front shell is integrally injection molded.

[0013] The beneficial effects of the utility model are as follows: the utility model makes the installation of the digital display module quick and easy by mutually snap-fitting the digital display module and the protector housing. The snap-fitting of the digital display module facilitates the replacement of different digital display modules to meet the needs. The snap-fitting limiting mechanism is entirely formed by molds, so the cost is low, it is not easy to be damaged, and the yield rate is high. The snap-fitting limiting mechanism has a simple structure and uses less materials, thereby reducing the materials used in the product and reducing the cost. The mold is also relatively simple and has a low maintenance rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is the front view of the utility model;

[0016] Figure 3 for Figure 2 Sectional view at AA in the middle;

[0017] Figure 4 is a schematic diagram of the structure of the front housing;

[0018] Figure 5A It is a structural schematic diagram of a digital display module according to one embodiment;

[0019] Figure 5B A structural schematic diagram of a digital display module in another embodiment;

[0020] Figure 5C A structural schematic diagram of a digital display module in another embodiment;

[0021] Figure 5D A structural schematic diagram of a digital display module in another embodiment;

[0022] Figure 5E A structural schematic diagram of a digital display module in another embodiment;

[0023] Fig. 5F A structural schematic diagram of a digital display module in another embodiment;

[0024] Figure 5G It is a structural schematic diagram of a digital display module of another embodiment. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0026] See also Figure 1-Figure 5G , as shown in the figure, a digital display self-resetting over-voltage and under-voltage protector includes a digital display module 1 and a protector housing 2, the protector housing 2 includes a rear housing 22 and a front housing 21, and the other structures of the protector are not improved in this application, and belong to the prior art, which is not related to the technical problem to be solved by this application, and will not be elaborated in detail here. It is worth noting that the front side of the protector housing 2 is an open opening 211 for the digital display module 1 to be embedded and entered, and there is a limiting mechanism between the inner wall of the opening 211 and the outer wall of the digital display module 1 to limit the forward and backward movement of the digital display module 1. The digital display module 1 is mutually engaged with the inner wall of the opening 211 of the protector housing 2 through the limiting mechanism, and the digital display module 1 is installed at the opening 211 of the protector housing 2 from the outside. The digital display module and the protector housing adopt a card connection method to make the installation and replacement of the digital display module more convenient, and the opening sizes of the digital display module and the protector housing can be made to match, so that multiple models can be applicable, so as to improve applicability, thereby reducing the cost of classification, storage, management, etc. of the factory.

[0027] The limiting mechanism described in this embodiment includes a protrusion 11 protruding from the outer wall of the digital display module 1, and a corresponding inner wall of the opening 211 of the protector housing 2 is provided with a slot 212 for the protrusion 11 to be inserted, and the slot 212 is not arranged to be connected with the front side of the protector housing 2. The protrusion 11 of the digital display module 1 cooperates with the front end wall of the slot 212 to form a limit to limit the digital display module 1 from sliding out of the opening 211. The slot 212 is arranged on the front housing 21. In this embodiment, the front surface of the protrusion 11 is a plane, and the back of the protrusion 11 is an inclined surface or an arc surface. The back of the protrusion 11 adopts an inclined surface or an arc surface to gradually squeeze open the opening 211 when installing the digital display module 1, so that the protrusion 11 is convenient for squeezing into the slot 212. Since the slot 212 is arranged to be easy to process, one end of the slot 212 is set to pass through the front housing 21, so that the slot 212 of the front housing 21 can be directly formed at one time when the upper and lower molds are used to form the front housing 21, which is convenient for processing.

[0028] Since there is no restriction on the rear side of the card slot 212, the digital display module 1 can still move backward in the protector housing 2 after the card protrusion 11 of the digital display module 1 is inserted into the card slot 212. In order to solve this problem, the limiting mechanism of this embodiment also includes a baffle 213 protruding from the inner wall of the opening 211 of the protector housing 2. After the digital display module 1 is installed, the rear end of the digital display module 1 abuts against the baffle 213. The baffle 213 of this embodiment is at least arranged on the opposite sides of the inner wall of the opening 211 of the protector housing 2, and the baffle 213 is disconnected at the intersection of the baffle 213 and the card slot 212. The front housing 21 is made of plastic material, and the thickness of the housing where the card slot 212 of the front housing 21 is located is within 5mm. The front housing 21 is integrally injection molded, so that the opening 211 of the front housing 21 can be easily opened when the digital display module 1 is inserted.

Claims

1. A mounting structure of a digital display module of a digital display self-resetting over-voltage and under-voltage protector, mounted on the digital display module and the protector housing, characterized in that: The front side of the protector shell is an open opening for the digital display module to be embedded in. A limiting mechanism is provided between the inner wall of the opening and the outer wall of the digital display module to limit the forward and backward movement of the digital display module. The digital display module is engaged with the inner wall of the opening of the protector shell through the limiting mechanism. The limiting mechanism includes a latch protrusion protruding from the outer wall of the digital display module, and the corresponding inner wall of the opening of the protector shell is provided with a slot for the latch protrusion to be inserted into. The slot is not connected to the front side of the protector shell, and the latch protrusion of the digital display module cooperates with the front end wall of the slot to form a limit stop to limit the digital display module from sliding out of the opening.

2. The installation structure of the digital display module of the digital display self-resetting over-voltage and under-voltage protector according to claim 1, characterized in that: The protector housing comprises a rear housing and a front housing, the card slot is arranged on the front housing, and one end of the card slot passes through the front housing.

3. The installation structure of the digital display module of the digital display self-resetting over-voltage and under-voltage protector as claimed in claim 2 is characterized in that: The limiting mechanism also includes a stop bar protruding from the open inner wall of the protector housing, and the rear end of the digital display module abuts against the stop bar after the digital display module is installed.

4. The installation structure of a digital display module of a digital display self-resetting over-voltage and under-voltage protector as claimed in claim 1 or 2, characterized in that: The front surface of the clamping protrusion is a plane, and the back surface of the clamping protrusion is an inclined surface or a curved surface.

5. The installation structure of the digital display module of the digital display self-resetting over-voltage and under-voltage protector as claimed in claim 3, characterized in that: The baffle is at least arranged on two opposite sides of the open inner wall of the protector shell, and the baffle is disconnected at the intersection of the baffle and the card slot.

6. The installation structure of the digital display module of the digital display self-resetting over-voltage and under-voltage protector as claimed in claim 2, characterized in that: The front shell is made of plastic, and the thickness of the shell where the card slot of the front shell is located is within 5 mm.

7. The installation structure of the digital display module of the digital display self-resetting over-voltage and under-voltage protector as claimed in claim 6, characterized in that: The front housing is integrally injection molded.

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