Universal shell of surge protector and surge protector

Abstract

The utility model relates to a general type shell of a surge protector and the surge protector, and the general type shell comprises a shell which is internally provided with a cavity, and one end of the shell is provided with an opening communicated with the cavity; the mold core can be inserted into the cavity of the shell from the opening, the two sides of the mold core are each provided with a first cavity and a second cavity which are used for containing the piezoresistor assembly, and the bottom of the first cavity and the bottom of the second cavity are each provided with two first mounting grooves capable of containing pins; one side of the first cavity and one side of the second cavity are provided with a second installation groove used for fixing the tripping assembly, and a detachable plugging piece is arranged in the first installation groove. Through the design of the first cavity and the second cavity which are respectively arranged at the two sides of the mold core and the detachable plugging piece, and through placing varistor assemblies with different specifications in the first cavity or the second cavity or between the first cavity and the second cavity, the conversion of surge protectors with different specifications is realized; therefore, one mold core can adapt to the conversion of surge protectors with different specifications.

Description

Technical Field

[0001] The utility model specifically relates to a universal housing for a surge protector and a surge protector. Background Art

[0002] Surge protectors are mainly applied to power supply systems and are electronic devices that provide safety protection for various electronic devices, instruments, and communication lines. When a spike current or voltage suddenly occurs in an electrical circuit or communication line due to external interference, the surge protector can conduct and shunt in time to protect the devices in the circuit from being damaged by the spike current or voltage.

[0003] Since the surge protector is pluggable on the base, and different types of pluggable surge protectors require different specifications according to the test category, and different surge protectors can withstand different currents, resulting in different internal structures. If product designs are carried out for each specification of surge protector, the development cost is relatively high. Therefore, there is an urgent need for a universal housing for surge protectors that can adapt to different specifications of surge protectors. Summary of the Utility Model

[0004] Aiming at the deficiencies of the existing technology, the purpose of the utility model is to provide a universal housing for a surge protector and a surge protector.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A universal housing for a surge protector, comprising:

[0007] A housing with a cavity inside and an opening communicating with the cavity at one end;

[0008] A mold core that can be inserted into the cavity of the housing through the opening. Both sides of the mold core are provided with a first cavity and a second cavity for placing varistor components. The bottoms of the first cavity and the second cavity are both provided with two first mounting grooves for placing pins. One side of the first cavity and the second cavity is provided with a second mounting groove for fixing a tripping component. A detachable plugging member is provided in the first mounting groove.

[0009] One side of the first mounting groove close to the second mounting groove communicates with the second mounting groove.

[0010] One side of the other first mounting groove communicates with the corresponding cavity.

[0011] One side of the first cavity and the second cavity in contact with the second mounting groove is provided with a notch groove.

[0012] A removable partition is provided between the first cavity and the second cavity.

[0013] A notch through which the pin can pass is provided at the bottom of the first installation groove, and the plugging member is detachably arranged at the notch.

[0014] The plugging member has a T-shaped structure, and clamping grooves are provided on both sides of its horizontal section.

[0015] Positioning blocks for pin positioning are provided on the groove walls of the first installation groove.

[0016] A surge protector includes the above-mentioned general-purpose housing. A varistor assembly is provided in any one or both of the first cavity and the second cavity in the general-purpose housing, and a tripping assembly is further provided in the second installation groove in the general-purpose housing. The varistor assembly is connected to the tripping assembly.

[0017] An indicating assembly linked to it is further provided at the top of the tripping assembly.

[0018] The beneficial effects of the present utility model: Through the design of the first cavity and the second cavity respectively arranged on both sides of the die core and the detachable plugging member, by placing varistor assemblies of different specifications in the first cavity or the second cavity or between the two, the conversion of surge protectors of different specifications is realized, so that one die core can be adapted to the conversion of surge protectors of different specifications. Description of the Drawings

[0019] Figure 1 It is a schematic structural diagram of the surge protector.

[0020] Figure 2 It is an assembly schematic diagram of the die core, varistor and tripping component.

[0021] Figure 3 It is a schematic structural diagram of the separated state of the die core and the plugging member.

[0022] Figure 4 It is a cross-sectional view of the die core.

[0023] Figure 5 It is a schematic structural diagram of Embodiment 1.

[0024] Figure 6 It is a schematic structural diagram of Embodiment 2.

[0025] Figure 7 It is a schematic structural diagram of Embodiment 3.

[0026] Figure 8 It is a schematic structural diagram of Embodiment 4. Detailed Description of the Embodiment

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0028] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0029] As Figures 1 to 4 shown, the present invention discloses a general-purpose housing for a surge protector, which includes:

[0030] A housing 1, which has a cavity inside and an opening communicating with the cavity at one end, and the die core is directly engaged with the housing in a snap-fit manner;

[0031] A die core 2, the die core can be inserted into the cavity of the housing from the opening, and both sides of the die core are provided with a first cavity 27 and a second cavity 28 for placing varistor components. Both the bottom of the first cavity and the second cavity are provided with two first mounting grooves 22 for placing pins 4, and one side of the first cavity and the second cavity is provided with a second mounting groove 23 for fixing a tripping component 5. A detachable plugging member 3 is provided in the first mounting groove.

[0032] The design of the plugging member can be used to limit the thin pins placed in the first mounting groove. If thick pins are used, the plugging member can be directly omitted, and at the same time, the plugging member can also plug the entire notch.

[0033] One side of the first mounting groove close to the second mounting groove communicates with the second mounting groove, so that the pins installed inside can be directly connected to the tripping component in the second mounting groove.

[0034] One side of the other first mounting groove communicates with the corresponding cavity, and the pins at this place can be directly connected to the varistor component in the cavity.

[0035] A notch groove 24 is provided on one side of the first cavity and the second cavity in contact with the second mounting groove, and the varistor component in the cavity is connected to the tripping component through the notch groove.

[0036] A removable partition 21 is provided between the first cavity and the second cavity. The partition can be designed in a pluggable form or directly removed by core-pulling during the injection molding process, so that the first cavity and the second cavity are combined into one cavity.

[0037] A notch 25 through which the pin can pass is provided at the bottom of the first installation groove, and the plugging member is detachably arranged at the notch.

[0038] The plugging member has a T-shaped structure, and clamping grooves 31 are provided on both sides of its horizontal section. The clamping grooves are directly clamped with the side wall of the mold core to realize the limit of the two.

[0039] Positioning blocks 26 for pin positioning are provided on the groove wall of the first installation groove to position the pins placed inside.

[0040] The present utility model also discloses a surge protector, which includes the above-mentioned universal housing. A varistor assembly is provided in any one or both of the first cavity and the second cavity in the universal housing, and a tripping assembly is further provided in the second installation groove in the universal housing. The varistor assembly is connected to the tripping assembly, and they are fixed by welding, and the connection point between the two can be disconnected due to the heat generated by the varistor assembly to realize tripping.

[0041] An indicating assembly linked to it is further provided at the top of the tripping assembly for tripping indication.

[0042] Embodiment 1

[0043] As Figure 5 shown, a varistor assembly is placed in the first cavity, and thick pins are used to realize the design of a surge protector with a specification of 20 kA. Because thick pins are used, there is no need for a plugging member to fill the first installation groove.

[0044] Embodiment 2

[0045] As Figure 6 shown, a varistor assembly is placed in the second cavity, thin pins are used, and the first installation groove is filled with a plugging member, so as to realize the design of a surge protector with reverse connection in the specification of 40 kA - 65 kA.

[0046] Embodiment 3

[0047] As Figure 7 shown, a varistor assembly is placed in the first cavity, thin pins are used, and the first installation groove is filled with a plugging member, so as to realize the design of a surge protector with forward connection in the specification of 40 kA - 65 kA.

[0048] Embodiment 4

[0049] As Figure 8As shown, varistor assemblies are provided in both the first cavity and the second cavity. Thin pins are used, and the first mounting groove is filled with a plugging member to achieve the design of a surge protector with a surge current rating of 80 kA - 160 kA.

[0050] Embodiment 5

[0051] By removing the partition between the first cavity and the second cavity, then placing a varistor assembly of another specification, using thin pins, and filling the first mounting groove with a plugging member, the design of a surge protector with a surge current rating of 12.5 kA is achieved.

[0052] Among them, Embodiment 2 and Embodiment 3 use the same varistor assembly, and the change in the positive and negative wiring is achieved only by changing the placement position.

[0053] By placing varistor assemblies of different specifications in the first cavity, the second cavity, or between the two, the conversion of surge protectors with different specifications for positive and negative wiring is achieved. There is no need to replace the mold core. Only by changing the placement quantity and position of the internal varistors can the conversion of surge protectors with different specifications be completed, achieving the general-purpose design of the mold core.

[0054] The embodiments should not be regarded as limitations of the present invention, but any improvements made based on the spirit of the present invention should be within the protection scope of the present invention.

Claims

1. A universal housing for a surge protector, characterized in that: It includes: A shell having a cavity inside and an opening at one end thereof communicating with the cavity; A mold core, the mold core can be inserted into the cavity of the shell through the opening, and a first cavity and a second cavity for placing a varistor component are provided on both sides of the mold core, and the bottom of the first cavity and the second cavity are provided with two first mounting grooves for placing pins, one side of the first cavity and the second cavity is provided with a second mounting groove for fixing the tripping component, and a removable blocking member is provided in the first mounting groove.

2. The universal housing of a surge protector according to claim 1, characterized in that: One side of the first mounting groove close to the second mounting groove is communicated with the second mounting groove.

3. The universal housing of a surge protector according to claim 2, characterized in that: One side of the other first mounting groove is communicated with the cavity on the corresponding side.

4. The universal housing of a surge protector according to claim 1, characterized in that: A notch groove is provided on one side of the first cavity and the second cavity which contacts the second mounting groove.

5. The universal housing of a surge protector according to claim 1, characterized in that: A removable partition is provided between the first cavity and the second cavity.

6. The universal housing of a surge protector according to claim 1, characterized in that: A notch is provided at the bottom of the first installation slot for the pin to pass through, and the blocking member is detachably arranged at the notch.

7. The universal housing of a surge protector according to claim 6, characterized in that: The blocking piece is a T-shaped structure, and slots are provided on both sides of its transverse section.

8. A universal housing for a surge protector according to claim 1, 6 or 7, characterized in that: A positioning block for positioning the pins is provided on the groove wall of the first installation groove.

9. A surge protector, characterized in that: It includes the universal shell as described in any one of claims 1 to 8 above, wherein any one or both of the first cavity and the second cavity in the universal shell are provided with a varistor component, and a release component is also provided in the second installation groove in the universal shell, and the varistor component is connected to the release component.

10. A surge protector according to claim 9, characterized in that: The top of the tripping assembly is also provided with an indicating assembly linked thereto.

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