Patent ID: 12200874

DETAILED DESCRIPTION OF THE EMBODIMENTS

In order to illustrate the objectives, technical solutions and advantages of the present disclosure more clearly, the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. It should be understood that the following description of the embodiments is intended to explain and illustrate the general concept of the present disclosure, and should not be construed to limit the present disclosure. In the specification and drawings, the same or similar reference numbers refer to the same or similar portions or components. For the purpose of clarity, the drawings are not necessarily to scale and some well-known components and structures may be omitted from the drawings.

Unless otherwise defined, technical or scientific terms used in the present disclosure shall have the ordinary meaning as understood by one of ordinary skill in the related art to which the present disclosure belongs. The terms “first”, “second” and similar terms used herein do not denote any order, quantity, or importance, but are merely used to distinguish different components. The wording “a” or “an” does not exclude a plurality. Terms “comprise” or “include” and similar words mean that the elements or things appearing before the word encompass the elements or things recited after the word and their equivalents, but do not exclude other elements or things. Diction such as “connect” or “contact” is not limited to physical or mechanical connections, but may include electric connections, whether direct connection or indirect connection. Dictions “up”, “down”, “left”, “right”, “top” or “bottom” are only used to indicate relative positional relationship. When the absolute positions of the described object change, the relative positional relationships may also change correspondingly. When an element is referred to as being “on” or “under” another element, it can be “directly on” or “directly under” the other element or interposition elements may be present.

The pressurizing device and the electronic device including the corresponding pressurizing device in each embodiment will be described in detail below with reference to the corresponding drawings.

As shown inFIGS.1A and1B(in which the central pressurizing units5are omitted for the sake of clarity), the first embodiment provides a pressurizing device for applying pressure to an electronic element8located on a circuit board2. The pressurizing device includes a support plate1, a pressurizing plate3, a plurality of peripheral pressurizing units4and a plurality of central pressurizing units5, shown inFIG.2.

The pressurizing plate3includes a first pressurizing plate surface31(i.e., the bottom surface of the pressurizing plate3inFIGS.1A and1B) and a second pressurizing plate surface32(i.e., the top surface of the pressurizing plate3inFIGS.1A and1B) opposite to each other. The first pressurizing plate surface31is used to directly or indirectly press the electronic element8located on a first circuit board surface22of the circuit board2(i.e., the top surface of the circuit board inFIGS.1A and1B). The first circuit board surface22is opposite to a second circuit board surface21(i.e., the bottom surface of the circuit board inFIGS.1A and1B).

The plurality of peripheral pressurizing units4are used to apply pressure to the peripheral region of the second pressurizing plate surface32. The plurality of central pressurizing units5are used to apply pressure to the central region of the second pressurizing plate surface32. The support plate1is arranged on the second circuit board surface21of the circuit board2opposite to the first circuit board surface22and is used to support the second circuit board surface21.

A connector9may be arranged on the first circuit board surface22; the electronic element8is pressed against the connector9by the first pressurizing plate surface31, as shown inFIG.1B.

As shown inFIGS.1A and1B, the peripheral pressurizing units4each include a first bolt41and a first compression spring42. The threaded rod of the first bolt41passes through the pressurizing plate3from the peripheral region of the second pressurizing plate surface32to the support plate1and is threadedly connected with the support plate1. The first compression spring42is axially sleeved on the threaded rod of the first bolt41and is squeezed between the head of the first bolt41and the second pressurizing plate surface32.

Each of the central pressurizing units5, as shown inFIG.2, includes a second bolt51and a second compression spring52. The threaded rod of the second bolt51passes through the pressurizing plate3from the central region of the second pressurizing plate surface32to the support plate1and is threadedly connected with the support plate1. The second compression spring52is axially sleeved on the threaded rod of the second bolt51, and is squeezed between the head of the second bolt51and the second pressurizing plate surface32.

Referring toFIG.2, the central pressurizing units5may be identical in structure to the peripheral pressurizing units4to balance the loading forces in the central region and the peripheral region, or may be slightly different from the peripheral pressurizing unit4according to the actual situation (e.g., type or size of the bolt is slightly different). The first bolt41and the second bolt51in the present embodiment may be both shoulder screws.

In addition, as shown inFIG.1B, the first embodiment also provides an electronic device which includes an electronic element8, a circuit board2and the pressurizing device of the present embodiment. The electronic element8of the present embodiment may be an electronic chip or a chip processor. A cable6is connected to the circuit board2, as shown inFIG.2. The electronic element8is pressed against the circuit board2by the pressurizing device.

In addition, the electronic device of the present embodiment may further include a connector9arranged on the circuit board2, as shown inFIG.1B. The connector9may be fixed on the first circuit board surface22of the circuit board2by soldering. At this time, the electronic element8is pressed against the connector9by the pressurizing device.

As shown inFIG.2, there are four peripheral pressurizing units4and four central pressurizing units5in the present embodiment. The four peripheral pressurizing units4are evenly distributed around the pressurizing plate3at intervals, and the four central pressurizing units5are evenly distributed in the central region of the platen3at intervals. The number of the peripheral pressurizing units4and the central pressurizing units5, however, is not limited to this embodiment.

The pressurizing device of the present embodiment provides a plurality of the peripheral pressurizing units4for applying pressure to the peripheral region of the second pressurizing plate surface32so that the pressurizing plate3presses the peripheral region of the electronic element8, and thus the mutual contact force between the pins in the peripheral region of the electronic element8and the corresponding terminals in the peripheral region of the circuit board2or connector9on the circuit board2is large, and the corresponding terminals in the peripheral region of the circuit board2or connector9on the circuit board2are sufficiently deflected, ensuring good electric contact is formed between the pins in the peripheral region of the electronic elements8and the corresponding terminals in the peripheral region of the circuit board2or connector9on the circuit board2.

The pressurizing device also provides a plurality of the central pressurizing units5for applying pressure to the central region of the second pressurizing plate surface32, so that the pressurizing plate3presses the central region of the electronic element8, thus the mutual contact force between the pins in the central region of the electronic element8and the corresponding terminals in the central region of the circuit board2or the connector9on the circuit board2is large, and the corresponding terminals in the central region of the circuit board2or the connector9on the circuit board2are sufficiently deflected, ensuring good electric contact is formed between the pins in the central region of the electronic elements8and the corresponding terminals in the central region of the circuit board2or the connector9on the circuit board2.

Therefore, the good electric contact is formed between the electronic element8and the circuit board2or the connector9on the circuit board2(even for larger size of the electronic element8and the circuit board2or the connector9).

As shown inFIGS.3to6, the second embodiment provides another pressurizing device, which is basically the same as the pressurizing device of the first embodiment, except for the central pressurizing units and the corresponding support plate.

In the second embodiment, each of the central pressurizing units5′ includes an elastic plate51′, a nut52′, and a third bolt53′. The elastic plate51′ is fixed on the support plate1′. The nut52′ is fixedly disposed in the elastic plate51′ and is disposed through the elastic plate51′. The axial direction of the nut52′ is perpendicular to the plate surface of the elastic plate51′. The threaded rod of the third bolt53′ passes through the pressurizing plate3from the central region of the second pressurizing plate surface32to the nut52′ and is threadedly connected with the nut52′. The head of the third bolt53′ is settled in the groove of the second pressurizing plate surface32.

As shown inFIG.6, the elastic plate51′ includes an elastic plate main body511′ with elasticity. The nut52′ is fixedly disposed in the central region of the elastic plate main body511′, and the elastic plate main body511′ protrudes toward (i.e., the downward direction inFIGS.3and6) the support plate1′ in a natural state, that is, the elastic plate main body511′ is concave downward in a natural state. When the third bolt53′ has a tendency to break free upward with the use of time, the elastic plate main body511′ can generate a downward pulling force on the third bolt53′, thereby preventing the third bolt53′ from breaking free upward to a certain extent, ensuring that the central pressurizing unit5′ continuously applies pressure to the central region of the second pressurizing plate surface32of the pressurizing plate3and increasing the durability of the applied pressure. Both opposite ends of the elastic plate main body511′ are bent toward the supporting plate1′, respectively, to form the supporting portion512′. The free end of the supporting portion512′ bends from the inside to the outside along the direction substantially parallel to the supporting plate1′ (i.e., the direction in which the center of the elastic plate51′ towards the outside) so as to form a fixing portion513′. Each of the two fixing portions513′ is fixedly connected to the supporting plate1′ by a fastener514′. The fastener514′ can be, for example, a rivet. The elastic plate main body511′, the two supporting portions512′ and the two fixing portions513′ are integrally connected in the shown embodiment.

The support plate1′ of the present embodiment is also arranged on the second circuit board surface21of the circuit board2opposite to the first circuit board surface22and is used to support the second circuit board surface21. The support plate1′ may be provided with a concave portion in which the elastic plate51′ may be arranged. Alternatively, as shown inFIG.4andFIG.5, the support plate1′ in the present embodiment may also include a solid plate11′ and a hollow plate12′ arranged on the solid plate11′, and a hollow region is disposed in the hollow plate12′. The elastic plate51′ can be fastened to the solid plate11′ in this hollow region. The concave portion or the hollow region provides space for the arrangement of the elastic plate51′, and also provides space for the elastic plate main body511′ to exert elastic force in the up-down direction (i.e., the direction perpendicular to the support plate). The height of the concave portion or the hollow region should be at least such that the entire elastic plate51′ is accommodated in the concave portion or the hollow region.

As shown inFIGS.7to9, the second embodiment further provides another electronic device which includes an electronic element8, a circuit board2, a cooling plate7and the pressurizing device of the present embodiment. A cable6is connected to the circuit board2. The electronic element8in the present embodiment may be an electronic chip or a chip processor. The electronic element8is pressed on the circuit board2by the pressurizing device. The cooling plate7is used to cool down the electronic element8. The cooling plate7is arranged on the second pressurizing plate surface32of the pressurizing plate3, and the cooling plate7can be fixed on the supporting plate1′ by fasteners as shown inFIG.8, or by the other conventional setting manner in the field according to the customers' need.

The electronic device of the present embodiment may also include a connector9arranged on the circuit board2, and the connector9may be fixed on the first circuit board surface22of the circuit board2by welding. At this time, the electronic element8is pressed against the connector9by the pressurizing device.

As shown inFIG.9, there are four peripheral pressurizing units4and four central pressurizing units5′ in the present embodiment, and the four peripheral pressurizing units4are evenly distributed around the pressurizing plate3at intervals, and the four central pressurizing units5′ are evenly distributed in the central region of the pressurizing plate3at intervals. But the number of the peripheral pressurizing units4and the central pressurizing unit5′ is not limited to this.

The pressurizing device of the present embodiment provides a plurality of the peripheral pressurizing units4for applying pressure to the peripheral region of the second pressurizing plate surface32, so that the pressurizing plate3presses the peripheral region of the electronic element8, thus the mutual contact force between the pins in the peripheral region of the electronic element8and the corresponding terminals in the peripheral region of the circuit board2or connector9on the circuit board2is large, and the corresponding terminals in the peripheral region of the circuit board2or the connector9on the circuit board2are sufficiently deflected, ensuring good electric contact is formed between the pins in the peripheral region of the electronic element8and the corresponding terminals in the peripheral region of the circuit board2or the connector9of on the circuit board2.

The pressurizing device also provides a plurality of the central pressurizing units5′ for applying pressure to the central region of the second pressurizing plate surface32, so that the pressurizing plate3presses the central region of the electronic element8, thus the mutual contact force between the pins in the central region of the electronic element8and the corresponding terminals in the central region of the circuit board2or the connector9on the circuit board2is large, and the corresponding terminals in the central region of the circuit board2or the connector9on the circuit board2are sufficiently deflected, ensuring good electric contact is formed between the pins in the central region of the electronic element8and the corresponding terminals in the central region of the circuit board2or the connector9on the circuit board2. Therefore, good electric contact is formed between the electronic element8and the circuit board2or the connector9on the circuit board2(even for larger size of the electronic element8and the circuit board2or the connector9).

Regarding the central pressurizing unit5′ of the present embodiment, the head of the third bolt53′ is settled in the groove of the second pressurizing plate surface32, and the central pressurizing units5′ are wholly located between the pressurizing plate3and the supporting plate1′. It can be seen that the central pressurizing units5′ of the present embodiment do not protrude on the second pressurizing plate surface32of the pressurizing plate3like the central pressurizing units5of the first embodiment, so that the central pressurizing units5′ of the present embodiment do not affect the arrangement of the cooling plate7(or other components) on the pressurizing plate3, and thus the customer can freely choose whether or not the cooling plate7is arranged on the pressurizing plate3according to the demand for the cooling plate7.

It should be appreciated for those skilled in this art that the above embodiments are intended to be illustrative, and not restrictive. Many modifications may be made to the above embodiments by those skilled in this art, and various features described in different embodiments may be freely combined with each other without conflicting in configuration or principle.

Although the present disclosure has been described with reference to the accompanying drawings, the embodiments disclosed in the accompanying drawings are intended to illustrate the embodiments of the present disclosure and should not be construed as a limitation of the present disclosure.

The above embodiments are only illustrative of the principles and structures of the present disclosure, and are not intended to limit the present disclosure. Those skilled in the art should understand that any changes and improvements made without departing from the general concept of the present disclosure are within the scope of the present disclosure. The protection scope of the present disclosure shall be subject to the scope defined by the claims of the present application.