CN213546217U

CN213546217U - Relay assembly

Info

Publication number: CN213546217U
Application number: CN202022280519.3U
Authority: CN
Inventors: 陈永兵; 谭忠华; 刘金枪; 邱桂林
Original assignee: Zhangzhou Hongfa Electron Wave Music Co ltd
Current assignee: Zhangzhou Hongfa Electron Wave Music Co ltd
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2021-06-25
Anticipated expiration: 2030-10-14

Abstract

The utility model discloses a relay assembly, which comprises a relay socket, an electromagnetic relay and a PTC thermistor, wherein the relay socket comprises a socket body and at least one first clamping spring, at least one second clamping spring and two third clamping springs which are arranged on the socket body; the PTC thermistor is arranged on the socket body, one end of the PTC thermistor is electrically connected with the first clamping spring, and the other end of the PTC thermistor is electrically connected with the second clamping spring. The utility model discloses when making electromagnetic relay and PTC thermistor parallelly connected be applied to the PCB board, two need not separately the welding, and only need with each clamp spring pin of relay socket and PCB board welding can to the reduction occupies the PCB board area, is favorable to realizing whole control module's miniaturization.

Description

Relay assembly

Technical Field

The utility model relates to a relay field especially relates to a relay assembly.

Background

A circuit structure of a surge suppressor is commonly used in a switching power supply, and the circuit structure includes a PTC thermistor, a relay, and the like. When the power switch is switched on, the capacitor starts to generate larger impulse current when charging is started, the relay contact is in an off state, and the PTC thermistor limits the impulse current to a lower level. After the capacitor is charged, the contact of the electric appliance acts to short circuit the PTC thermistor and switch on the load. In some states, the relay may fail without shorting the PTC thermistor, at which time a load is applied to the PTC thermistor and the PTC thermistor heats up to a certain extent, and the PTC thermistor enters a high resistance state, thereby limiting the fault current to a lower level.

In an electronic circuit, the relay and the PTC thermistor are separately separated and welded on a PCB, so that a large area of the PCB is occupied, and the miniaturization of the whole control module is not facilitated.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem that prior art exists, a relay assembly is provided, it can avoid electromagnetic relay and PTC thermistor separately to weld on the PCB board.

The utility model provides a technical scheme that its technical problem adopted is: a relay assembly comprises a relay socket, an electromagnetic relay and a PTC thermistor, wherein the relay socket comprises a socket body and at least one first clamping spring, at least one second clamping spring and two third clamping springs which are arranged on the socket body; the PTC thermistor is arranged on the socket body, one end of the PTC thermistor is electrically connected with the first clamping spring, and the other end of the PTC thermistor is electrically connected with the second clamping spring.

Further, the socket body is provided with a containing groove, and the PTC thermistor is arranged in the containing groove.

Furthermore, the first clamp spring is provided with a first clamp spring, the second clamp spring is provided with a second clamp spring, and the first clamp spring and the second clamp spring respectively enter the accommodating groove and are positioned on two opposite sides of the PTC thermistor to clamp two ends of the PTC thermistor.

Further, the first clamp spring comprises a first spring piece which is integrally formed with the first clamp spring and a first clamp piece which is partially punched out to one side from the first spring piece and inclines downwards; the second clamp spring comprises a second spring plate integrally formed with the second clamp spring and a second clamping sheet which is punched from part of the second spring plate to one side and inclines downwards; the first clamping piece and the second clamping piece are arranged oppositely, and the PTC thermistor is positioned between the first clamping piece and the second clamping piece and clamped by the first clamping piece and the second clamping piece.

Furthermore, the bottom end of the socket body is provided with a dispensing hole, so that the electromagnetic relay and the socket body are fixed together through dispensing of the dispensing hole.

Furthermore, glue dispensing grooves are respectively formed in the bottom end of the socket body at the positions of the clamp spring pins of the first clamp spring, the clamp spring pins of the second clamp spring and the clamp spring pins of the third clamp spring, and the first clamp spring, the second clamp spring and the third clamp spring are respectively fixed to the socket body through glue dispensing of the glue dispensing grooves.

Furthermore, the top end of the socket body is provided with a plurality of yielding grooves, and the plurality of yielding grooves are matched with a plurality of positioning protrusions arranged at the bottom of the electromagnetic relay in a one-to-one correspondence manner.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. because the movable spring pin of the electromagnetic relay is inserted in the first clamping spring, the static spring pin of the electromagnetic relay is inserted in the second clamping spring, two coil pins of the electromagnetic relay are respectively inserted in the two third clamping springs one by one, the PTC thermistor is arranged in the socket body, one end of the PTC thermistor is electrically connected with the first clamping spring, and the other end of the PTC thermistor is electrically connected with the second clamping spring, so that when the electromagnetic relay and the PTC thermistor are applied to a PCB in parallel, the two PTC thermistors are not required to be separately welded, and only the clamping spring pins of the relay socket are required to be welded with the PCB, thereby reducing the area of the PCB, and being beneficial to realizing the miniaturization of the whole control module.

2. The socket body is provided with a containing groove, and the PTC thermistor is arranged in the containing groove, so that the overall appearance is simpler and more compact.

3. The first clamp spring is provided with a first clamp spring, the second clamp spring is provided with a second clamp spring, the first clamp spring and the second clamp spring respectively enter the accommodating groove and are positioned on two opposite sides of the PTC thermistor to clamp two ends of the PTC thermistor, so that the electric connection mode of the first clamp spring, the second clamp spring and the PTC thermistor is very simple and convenient.

4. The first clamp spring comprises the first reed and the first clamping sheet, and the second clamp spring comprises the second reed and the second clamping sheet, so that the first clamp spring and the second clamp spring are simple in structure and easy to form.

The present invention will be described in further detail with reference to the accompanying drawings and examples; however, the present invention is not limited to the embodiment.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural diagram of a relay socket (including a PTC thermistor) according to the present invention;

fig. 3 is a schematic structural diagram of the electromagnetic relay of the present invention;

fig. 4 is a schematic view of a positional relationship between the first clamp spring and the second clamp spring in a plan view;

fig. 5 is a schematic diagram showing a positional relationship between the first clamp spring and the second clamp spring in a side view;

fig. 6 is a schematic view of the first clamp spring, the second clamp spring and the PTC thermistor in a plan view according to the present invention;

fig. 7 is a bottom view of the relay socket of the present invention.

Detailed Description

In an embodiment, please refer to fig. 1 to 7, the relay assembly of the present invention includes a relay socket 1, an electromagnetic relay 2 and a PTC thermistor 3, wherein the relay socket 1 includes a socket body 11 and a first clamping spring 12, a second clamping spring 13 and two third clamping springs 14 disposed on the socket body 11, the first clamping spring 12 and the second clamping spring 13 are distributed along a length direction of the socket body 11, and the two third clamping springs 14 are distributed along a width direction of the socket body 11 and located at one end of the socket body 11 in the length direction. A movable spring pin 21 of the electromagnetic relay 2 is inserted into the first clamping spring 12, a static spring pin 22 of the electromagnetic relay 2 is inserted into the second clamping spring 13, and two coil pins 23 of the electromagnetic relay 2 are respectively inserted into the two third clamping springs 14 one by one; the PTC thermistor 3 is attached to the socket body 11, and one end of the PTC thermistor 3 is electrically connected to the first clamping spring 12, and the other end of the PTC thermistor 3 is electrically connected to the second clamping spring 13.

In this embodiment, the socket body 11 is provided with a receiving groove 111, the first clamping spring 12 and the second clamping spring 13 are distributed along the width direction of the socket body 11, and the PTC thermistor 3 is mounted in the receiving groove 111. The first clamp spring 12 is provided with a first clamp spring 121, the second clamp spring 13 is provided with a second clamp spring 131, and the first clamp spring 121 and the second clamp spring 131 respectively enter the accommodating groove 111 and are located on two opposite sides of the PTC thermistor 3 to clamp two ends of the PTC thermistor 3.

In this embodiment, as shown in fig. 4 and 5, the first latch spring 121 includes a first spring 1211 integrally formed with the first clamp spring 12, and a first latch blade 1212 that is partially punched out of the first spring 1211 to one side and is inclined downward; the second latch spring 131 includes a second spring 1311 formed integrally with the second clamp spring 13, and a second latch piece 1312 punched from the second spring 1311 partially to one side and inclined downward. The second spring 1311 is substantially L-shaped, and has one side in the longitudinal direction of the socket body 11 and the other side in the width direction of the socket body 11, and the second locking piece 1312 is located on one side of the second spring 1311 and is disposed opposite to the first locking piece 1212. The PTC thermistor 3 is positioned between and caught by the first catching piece 1212 and the second catching piece 1312, as shown in fig. 6, whereby one end of the PTC thermistor 3 is electrically connected to the first clamping spring 12 and the other end of the PTC thermistor 3 is electrically connected to the second clamping spring 13.

Further, as shown in fig. 7, a dispensing hole 112 is formed at the bottom end of the socket body 11, so that the electromagnetic relay 2 and the socket body 11 are fixed together by dispensing through the dispensing hole 112. The bottom end of the socket body 11 is provided with dispensing grooves 113 at the spring clamping pin of the first clamping spring 12, the spring clamping pin of the second clamping spring 13 and the spring clamping pin of the third clamping spring 14, and the first clamping spring 12, the second clamping spring 13 and the third clamping spring 14 are fixed to the socket body 11 by dispensing through the dispensing grooves 113.

In this embodiment, the top end of the socket body 11 is provided with a plurality of abdicating grooves 114, and the plurality of abdicating grooves 114 are in one-to-one corresponding fit with the plurality of positioning protrusions 24 arranged at the bottom of the electromagnetic relay 2.

The utility model discloses a relay assembly with PTC thermistor 3, during the equipment, insert first clamp spring 12, second clamp spring 13, third clamp spring 14 in socket ontology 11 respectively earlier, pack PTC thermistor 3 into socket ontology 11's storage tank 111, ensure that the both ends of PTC thermistor 3 are blocked by first chucking piece 1212 of first jump ring 121 and second chucking piece 1312 of second jump ring 131; then, the movable spring pin 21, the static spring pin 22 and the coil pin 23 of the electromagnetic relay 2 are respectively inserted into the first clamp spring 12, the second clamp spring 13 and the third clamp spring 14; finally, the electromagnetic relay 2, the first clamp spring 12, the second clamp spring 13, and the third clamp spring 14 are fixed to the socket body 11 by dispensing through the dispensing hole 112 and the dispensing groove 113.

The utility model discloses a relay assembly, its electromagnetic relay 2 and PTC thermistor 3 are in the same place as the carrier equipment with relay socket 1 for electromagnetic relay 2 and PTC thermistor 3 connect in parallel when being applied to the PCB board, two need not separately the welding, and only need with relay socket 1 each press from both sides the spring pin with the PCB board welding can, relay socket 1's bottom area is unanimous basically with electromagnetic relay 2's bottom area, thereby reduce and occupy the PCB board area, be favorable to realizing whole control module's miniaturization.

The above embodiments are only used to further illustrate the relay assembly of the present invention, but the present invention is not limited to the embodiments, and any simple modification, equivalent change and modification of the above embodiments by the technical entity of the present invention all fall into the protection scope of the technical solution of the present invention.

Claims

1. A relay assembly, characterized by: the relay socket comprises a socket body, and at least one first clamping spring, at least one second clamping spring and two third clamping springs which are arranged on the socket body, wherein a movable spring pin of the electromagnetic relay is inserted into the first clamping spring, a static spring pin of the electromagnetic relay is inserted into the second clamping spring, and two coil pins of the electromagnetic relay are respectively inserted into the two third clamping springs one by one; the PTC thermistor is arranged on the socket body, one end of the PTC thermistor is electrically connected with the first clamping spring, and the other end of the PTC thermistor is electrically connected with the second clamping spring.

2. The relay assembly of claim 1, wherein: the socket body is provided with a containing groove, and the PTC thermistor is arranged in the containing groove.

3. The relay assembly of claim 2, wherein: the first clamp spring is provided with a first clamp spring, the second clamp spring is provided with a second clamp spring, and the first clamp spring and the second clamp spring respectively enter the accommodating groove and are positioned on two opposite sides of the PTC thermistor to clamp two ends of the PTC thermistor.

4. The relay assembly of claim 3, wherein: the first clamp spring comprises a first spring plate and a first clamping sheet, wherein the first spring plate is integrally formed with the first clamping spring, and the first clamping sheet is partially punched towards one side of the first spring plate and inclines downwards; the second clamp spring comprises a second spring plate integrally formed with the second clamp spring and a second clamping sheet which is punched from part of the second spring plate to one side and inclines downwards; the first clamping piece and the second clamping piece are arranged oppositely, and the PTC thermistor is positioned between the first clamping piece and the second clamping piece and clamped by the first clamping piece and the second clamping piece.

5. The relay assembly of claim 1, wherein: the bottom end of the socket body is provided with a dispensing hole, so that the electromagnetic relay and the socket body are fixed together through dispensing of the dispensing hole.

6. The relay assembly of claim 1, wherein: and glue dispensing grooves are respectively formed in the bottom end of the socket body at the positions of the clamp spring pins of the first clamp spring, the clamp spring pins of the second clamp spring and the clamp spring pins of the third clamp spring, and the first clamp spring, the second clamp spring and the third clamp spring are respectively fixed on the socket body through glue dispensing of the glue dispensing grooves.

7. The relay assembly of claim 1, wherein: the socket comprises a socket body and is characterized in that a plurality of abdicating grooves are formed in the top end of the socket body and are matched with a plurality of positioning protrusions arranged at the bottom of the electromagnetic relay in a one-to-one correspondence mode.