A connector housing and sandwich connector

Abstract

This utility model belongs to the field of electrical connectors, specifically providing a connector housing and a sandwich connector. The connector housing has four side walls arranged in pairs to form a perimeter. One side wall of each pair of opposing side walls has a snap-fit ​​mechanism, and the other side wall has a slot for the snap-fit ​​mechanism on the opposite side wall of the other housing to be inserted into during use, so that all four side walls of the housing can be locked and fixed by the snap-fit ​​mechanism and the slot. The sandwich connector includes the aforementioned connector housing. When assembled and used, the connector housing provided by this utility model achieves omnidirectional fixation through the interlocking snap-fit ​​mechanism and the slot, making it suitable for applications with strong vibrations and those requiring angled installation, thus improving reliability.

Description

Technical Field

[0001] This utility model belongs to the field of electrical connectors, and in particular relates to a connector housing and a sandwich connector. Background Technology

[0002] Mezzanine connectors are used between two parallel PCBs to achieve communication between them. In related technologies, mezzanine connectors include an adapter, which consists of two mating parts. Each part includes a housing and terminal modules mounted on the housing, with the housings mating and fixed together. For ease of description, the housings of the two parts of the adapter can be defined as an upper housing and a lower housing, respectively. Currently, in conventional mezzanine connectors on the market, the upper and lower housings have different structures, requiring separate molds for manufacturing, resulting in higher costs.

[0003] The applicant's utility model patent, with authorization announcement number CN215645333U, provides a mezzanine connector assembly with ventilation openings. The adapter of this mezzanine connector assembly includes an upper housing and a lower housing that interlock with each other, wherein the upper and lower housings are structurally identical. To ensure ventilation, the housing has only two opposing side walls, and each side wall is provided with a latch and a slot. When the upper and lower housings are interlocked, the slot on one side wall and the latch on the opposing side wall engage to lock the two housings in place.

[0004] The aforementioned patent provides a universal housing that allows the upper and lower housings to be interchangeable, requiring only one mold opening and reducing production costs. However, in the housing provided by the aforementioned patent, the housing only has snaps and slots on opposite side walls. When the connector is used in high-vibration conditions or in situations where it is installed at an angle, the upper and lower housings are prone to loosening under stress, resulting in poor fixing reliability. Utility Model Content

[0005] The purpose of this invention is to provide a connector housing that solves the technical problem of insufficient fixation reliability in existing interchangeable mating housings. Another purpose of this invention is to provide a sandwich connector that solves the same technical problem.

[0006] To achieve the above objectives, the technical solution for the connector housing provided by this utility model is as follows:

[0007] A connector housing has four side walls arranged in pairs to form a perimeter. One side wall of each pair of opposite side walls has a buckle, and the other side wall has a slot for the buckle on the opposite side wall of the other housing to be inserted into during use, so that all four side walls of the housing can be locked and fixed by the buckle and the slot.

[0008] As a further improvement, each of the two opposing side walls of the first group is provided with at least one buckle and a slot matching the number of buckles, so that both side walls of the group can be locked and fixed by at least two buckles and slots. In the second group of opposing side walls, one side wall is provided with only buckles and the other side wall is provided with only slots.

[0009] As a further improvement, each of the two sets of opposing side walls is provided with at least one buckle and a slot matching the number of buckles, so that all four side walls of the housing can be locked and fixed by at least two buckles and slots.

[0010] As a further improvement, one side wall of the two opposing side walls is provided with only a buckle, and the other side wall is provided with only a slot.

[0011] As a further improvement, a set of opposing side walls are provided with relief grooves to avoid the latches installed on the housing. The relief groove of the side wall with the slot is provided with a reinforcing protrusion, which has a force-bearing stopping surface that cooperates with the latch after the latch of the other housing is inserted into the slot.

[0012] As a further improvement, the inner side of the reinforced protrusion has a guide groove for guiding the insertion of the snap fastener.

[0013] The beneficial effects are as follows: This utility model innovatively proposes a connector housing that is locked and fixed in all directions by snaps and slots. Specifically, in the two sets of opposite side walls, one side wall has a snap and the other side wall has a slot. In this way, after the two housings are inserted into each other, the slots and snaps respectively provided on the opposite side walls of the same set can be locked together, so that all four side walls of the housing can be locked by the cooperation of snaps and slots. That is to say, when the housing provided by this utility model is assembled and used, the four side walls are fixed in all directions by the cooperation of snaps and slots, which is suitable for occasions with strong vibration and skewed installation, thus improving reliability.

[0014] To achieve the above objectives, the technical solution of the mezzanine connector provided by this utility model is as follows:

[0015] A mezzanine connector includes two identical housings that are mated together. The housings have four side walls that are paired together to form a perimeter. One side wall of the two pairs of opposite side walls is provided with a buckle, and the other side wall is provided with a slot for the buckle on the opposite side wall of the other housing to be inserted. All four side walls of the housing are locked and fixed by the buckle and the slot.

[0016] As a further improvement, each of the two opposing side walls of the first group is provided with at least one buckle and a slot that matches the number of buckles. Both side walls of this group are locked and fixed by at least two buckles and slots. In the second group of opposing side walls, one side wall is provided with only buckles and the other side wall is provided with only slots.

[0017] As a further improvement, each of the two sets of opposing side walls is provided with at least one buckle and a slot that matches the number of buckles, and all four side walls of the housing are locked and fixed by at least two buckles and slots.

[0018] As a further improvement, one side wall of the two opposing side walls is provided with only a buckle, and the other side wall is provided with only a slot.

[0019] As a further improvement, a set of opposing side walls are provided with relief grooves to avoid the latches installed on the housing. The relief groove of the side wall with the slot is provided with a reinforcing protrusion, which has a force-bearing stopping surface that cooperates with the latch.

[0020] As a further improvement, the inner side of the reinforced protrusion has a guide groove for guiding the insertion of the snap fastener.

[0021] The beneficial effects are as follows: This utility model provides an improved sandwich connector that can achieve omnidirectional fixation of the housing. Specifically, the housing has two sets of opposing side walls, one side wall has a buckle and the other side wall has a slot. After the two housings are inserted into each other, the slots and buckles respectively provided on the same set of opposing side walls can be locked together, so that all four side walls of the housing can be locked by the cooperation of the buckles and slots. In other words, the four side walls of the two housings of this utility model sandwich connector are mutually fixed by the cooperation of the buckles and slots, which is suitable for occasions with strong vibration and skewed installation, thus improving reliability. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of an embodiment of the connector housing in this utility model;

[0023] Figure 2 This is a schematic diagram of the relative positions of the connector housing embodiment in this utility model during mating.

[0024] Figure 3 This is a schematic diagram of the connector housing embodiment of this utility model during the mating process;

[0025] Figure 4 This is a schematic diagram of the connector housing embodiment of this utility model after mating.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Side wall; 2. Buckle; 3. Slot; 4. Clearance groove; 5. Reinforcing protrusion; 6. Locking installation rib; 7. Guide rib. Detailed Implementation

[0028] To improve the reliability of the mating and fixing of the two housings, the basic technical concept of this utility model is to provide a connector housing that can be locked in all directions around the circumference through buckles and slots, while ensuring that the housings are interchangeable and can be mated together. Based on the above concept, the present utility model will be further described in detail below with reference to the embodiments.

[0029] Specific embodiments of the connector housing provided by this utility model:

[0030] like Figures 1-4 As shown, the connector housing (hereinafter referred to as the housing) has four side walls 1, which are arranged in pairs to form a wall structure. The interior of the housing is used to install terminal modules, and both ends of the housing can be used to mate with another housing and the other end can be used to mate with another connector. The end used to mate with the other connector is also provided with a guide rib 7 to guide the housing into the other connector.

[0031] Analysis of the mating relationships of the shells reveals that one sidewall 1 on one shell mates with the opposite sidewall 1 on another shell. For ease of understanding, the four sidewalls 1 of the shells are numbered 1, 2, 3, and 4, with 1 and 3 opposite each other, and 2 and 4 opposite each other. The two mating shells are defined as the upper shell and the lower shell. During the mating, sidewall 1 of the upper shell and sidewall 3 of the lower shell are on the same side, and sidewall 2 of the upper shell and sidewall 4 of the lower shell are on the same side.

[0032] To ensure that all four side walls 1 of the housing can be locked and fixed by latches 2 and slots 3 when the two housings are inserted, in a basic implementation, one side wall 1 is provided with a latch 2 and the other side wall 1 is provided with a slot 3. The slot 3 is used to fit the latch 2 on the opposite side wall 1 when the two housings are inserted. For example, the latch 2 is provided on side wall 1, the slot 3 is provided on side wall 1, the latch 2 is provided on side wall 1, and the slot 3 is provided on side wall 1. After the two housings are inserted, the latch 2 and slot 3 of side wall 1 and side wall 2 and side wall 4 are locked together. This achieves omnidirectional locking and fixing by latches 2 and slots 3, thereby improving the reliability of the housing insertion.

[0033] The buckle 2 used here can be the same as the buckle 2 in the prior art, that is, the buckle 2 with barbs. As for the slot 3, it can be a through hole that penetrates the side wall 1. When it is necessary to separate the two shells, a tool can be used to push the buckle 2 out of the slot 3.

[0034] In some preferred embodiments, such as Figures 1-4 As shown, the two sets of sidewalls 1 are defined as the first group and the second group, respectively. On the two opposite sidewalls 1 of the first group (i.e., corresponding to...) Figure 3The side wall 1 on the right (i.e., the opposite side wall 1) in the middle view is provided with a buckle 2 and a slot 3. In this way, after the two shells are inserted, both side walls 1 in this group can be locked and fixed by the two buckles 2 and the slots 3, which further improves the fixation reliability of the two shells. In the other set of two opposite side walls 1, one side wall 1 is only provided with a buckle 2, and the other side wall 1 is only provided with a slot 3.

[0035] In other embodiments of this preferred embodiment, if space permits, two buckles 2 and two slots 3 can be provided on each of the two opposite side walls 1 of the first group, or more buckles 2 and a corresponding number of slots 3, so that multi-point fixing of the same group of side walls 1 can be formed.

[0036] In some other preferred embodiments, if space permits, a buckle 2 and a slot 3 can be provided on each of the two sets of opposing side walls 1, that is, on each of the four side walls 1, so that all four side walls 1 of the housing can be fixed by the two buckles 2 and the slots 3.

[0037] In other embodiments of this preferred embodiment, similarly, for a larger housing, each side wall 1 may be provided with two buckles 2 and two slots 3, or more buckles 2 and a corresponding number of slots 3.

[0038] In some other embodiments, a buckle 2 may be provided on one side wall 1 of the two opposing side walls 1, and a slot 3 may be provided on the other side wall 1. At the most basic level, there is one buckle 2 and one slot 3. Of course, if space permits, two or more buckles 2 and slots 3 may be provided on each side wall 1.

[0039] In some embodiments, the housing can be used as a male terminal when mated with another connector, and a latch can be used to lock the housing and the other connector together. The latch can be the type disclosed in the utility model patent with authorization publication number CN219892467U. Accordingly, the housing is provided with latch mounting ribs 6, and the space between two latch mounting ribs 6 can be inserted into and fixed by the latch. To ensure normal installation and use of the latch, in the two sets of sidewalls 1, such as... Figure 1 , Figure 3 and Figure 4 As shown, a set of opposing side walls 1 are provided with clearance grooves 4, which are formed by thinning of the wall thickness of the side wall 1. In this case, the clearance groove 4 of the side wall 1 with the slot 3 is provided with a reinforcing protrusion 5. The reinforcing protrusion 5 has a force-bearing stopping surface that engages with the snap 2 of the other housing after it is inserted into the slot 3, that is, corresponding to Figure 3 and Figure 4The upper surface of the reinforced protrusion 5. At this time, without affecting the normal installation and use of the latch, it can be ensured that the slot 3 on this side has high strength (i.e., reinforcement effect), and form a more reliable locking and fixing relationship with the latch 2.

[0040] In some preferred embodiments, a guide groove (not shown in the figure) can be provided on the inner side of the reinforcing protrusion 5 to guide the buckle 2 to be inserted normally. This makes it easier for the buckle 2 to enter the slot 3 when the two housings are inserted together, which is convenient for use.

[0041] Specific embodiments of the sandwich connector provided by this utility model:

[0042] Similar to existing technologies, the mezzanine connector also includes two mating housings. The structure of the housings is consistent with that described in the above-described embodiment of the connector housing, and will not be further described here.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A connector housing, characterized in that, The housing has four side walls (1) that are paired together to form a wall. In the two pairs of opposite side walls (1), one side wall (1) is provided with a buckle (2), and the other side wall (1) is provided with a slot (3) for the buckle (2) on the opposite side wall (1) of the other housing to be inserted into when in use, so that the four side walls (1) of the housing can be locked and fixed by the buckle (2) and the slot (3).

2. The connector housing according to claim 1, characterized in that, The first set of opposite side walls (1) are provided with at least one buckle (2) and a slot (3) with the same number of buckles (2) so that the two side walls (1) can be locked and fixed by at least two buckles (2) and slots (3). In the second set of opposite side walls (1), one side wall (1) is provided with only buckles (2) and the other side wall (1) is provided with only slots (3).

3. The connector housing according to claim 1, characterized in that, In the two sets of opposing side walls (1), each side wall (1) is provided with at least one buckle (2) and a slot (3) with the same number of buckles (2), so that the four side walls (1) of the housing can be locked and fixed by at least two buckles (2) and slots (3).

4. The connector housing according to claim 1, characterized in that, In the two sets of opposing side walls (1), one side wall (1) is provided with only buckles (2), and the other side wall (1) is provided with only slots (3).

5. The connector housing according to any one of claims 1-4, characterized in that, A set of opposing side walls (1) are provided with relief grooves (4) for reducing the wall thickness to avoid the latches installed on the housing. Among them, the relief groove (4) of the side wall (1) with the slot (3) is provided with a reinforcing protrusion (5). The reinforcing protrusion (5) has a force-bearing stop surface that engages with the latch (2) after the latch (2) of the other housing is inserted into the slot (3).

6. The connector housing according to claim 5, characterized in that, The inner side of the reinforcing protrusion (5) has a guide groove for guiding the insertion of the buckle (2).

7. A mezzanine connector comprising two identical housings that interlock, characterized in that, The shell has four side walls (1) that are paired together to form a wall. In the two pairs of opposite side walls (1), one side wall (1) is provided with a buckle (2), and the other side wall (1) is provided with a slot (3) for the buckle (2) on the opposite side wall (1) of the other shell to be inserted. All four side walls (1) of the shell are locked and fixed by the buckle (2) and the slot (3).

8. The mezzanine connector according to claim 7, characterized in that, The first set of opposite side walls (1) each has at least one buckle (2) and a slot (3) with the same number of buckles (2). The two side walls (1) of this set are locked and fixed by at least two buckles (2) and slots (3). In the second set of opposite side walls (1), one side wall (1) has only buckles (2) and the other side wall (1) has only slots (3).

9. The mezzanine connector according to claim 7, characterized in that, In the two sets of opposing side walls (1), each side wall (1) is provided with at least one buckle (2) and a slot (3) with the same number of buckles (2). All four side walls (1) of the housing are locked and fixed by at least two buckles (2) and slots (3).

10. A mezzanine connector according to claim 7, characterized in that, In the two sets of opposing side walls (1), one side wall (1) is provided with only buckles (2), and the other side wall (1) is provided with only slots (3).

11. The mezzanine connector according to any one of claims 7-10, characterized in that, A set of opposing side walls (1) are provided with a relief groove (4) for reducing the wall thickness to avoid the latch installed on the housing. The relief groove (4) of the side wall (1) provided with the slot (3) is provided with a reinforcing protrusion (5). The reinforcing protrusion (5) has a force-bearing stopping surface that cooperates with the latch (2).

12. The mezzanine connector according to claim 11, characterized in that, The inner side of the reinforcing protrusion (5) has a guide groove for guiding the insertion of the buckle (2).

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